Stuart is available for hire
Hire StuartStuart Corrans
Verified Expert in Engineering
Software Developer
London, United Kingdom
Toptal member since June 25, 2019
Bio
Stuart is a certified Azure developer and architect with 20+ years of experience. In recent years, he has specialized in enterprise integration and back-end projects, tackling problems of big data, scale, performance, and observability. He is passionate about mentoring, training, and technical writing, ensuring knowledge is transferred to developers and users when a project is completed. Stuart is currently ranked inside the top 0.2% of Stack Overflow.
Portfolio
Vanestum Consulting
SQL, Integration, Microservices, Azure, C#, Architecture, Mentorship, CTO...
Freelance
LINQ, TPL, Azure, REST, C#, SQL, Azure Cosmos DB, Architecture, Performance...
Petroineos International Trading Limited
.NET, SQL, Azure DevOps, SQL Server Analysis Services (SSAS), REST, SAP...
Experience
- SQL - 20 years
- Technical Writing - 20 years
- .NET - 16 years
- C# - 14 years
- Azure - 10 years
- Azure DevOps - 8 years
- Architecture - 8 years
- XSLT - 5 years
Preferred Environment
SQL, Azure, .NET, C#, Architecture, Azure DevOps, Technical Writing, Azure Service Bus, Zendesk, Integration
The most amazing...
...thing I've realized is that despite the many systems I've delivered during my career, I always find something new to learn every day!
Work Experience
Owner and Technical Consultant
2020 - PRESENT
Vanestum Consulting
- Consulted for an Anglo-Dutch oil major company to assist in designing and integrating a large-scale commodities trading system using the Azure Data Factory.
- Provided long-term consulting to a US-based startup to build an Azure-based microservices enterprise.
- Assisted new customers strategically on their customer experience and support journey, including integrations with Stripe and Zendesk.
- Assisted Hexagon Metrology with Azure and .NET best practices on a migration project to Azure and CosmosDB.
- Consulted with Ubisoft/i3D performance hosting, which uses a high volume, low latency, event-driven architecture to manage and scale large fleets of game servers distributed globally using the actor model.
- Performed as a senior developer in an elite team at NewDay Card Payments, delivering an innovative financial microservice enterprise into the Azure cloud.
- Assisted with an automated, AI-assisted business process mapping with building learning management and certified training course for their groundbreaking product, using Northpass and iorad.
- Developed training manuals, end user guides, and compliance documentation for a Texas-based home healthcare and visitation system to obtain their EVV certification.
- Worked as part of an elite team building a low latency transactional API and service bus microservice enterprise for NewDay, in the financial/credit industry.
- Provided architectural consulting and software development at Petroineos Trading Limited (UK commodities trading) to move a batch-driven, on-premises enterprise into a cloud-based, real-time, event-driven analytics platform.
Technologies: SQL, Integration, Microservices, Azure, C#, Architecture, Mentorship, CTO, Performance, Technical Writing, Knowledge Bases, API Design, HTML, Software Development, System Documentation, API Documentation, Technical Documentation, Writing & Editing, Documentation, Process Documentation, Software Documentation, CSS, JavaScript, Startups, Technical Leadership, Coaching, Scalability, Engineering, Process Development, Advisory, Project Management, Software Architecture, QuickBooks API, REST APIs, Intuit QuickBooks, Trading, Back-end, Microservices Architecture, Design Patterns, Domain-driven Design (DDD), Test-driven Development (TDD), Apache Kafka, CI/CD Pipelines, Data Modeling, Full-stack Development, Git, Entity Framework, Azure App Service, GitHub, .NET 6, Markdown, Technical Requirements, Excel 365, Confluence, System Integration, Back-end Development, Enterprise Architecture, DevOps, Azure Cloud Services, Financials, HMRC, Automation, Data Mapping, Microsoft Excel, Customer Relationship Management (CRM), Salesforce, Slack API, ASP.NET, Authentication, Azure SSO, Cloud Architecture, Cloud Platforms, Solution Architecture, Stock Market, WebSockets, Zendesk API, Business Strategy, Atlassian, User Documentation, Atlassian Suite, Agile Project Management, Accounting, QuickBooks Desktop, Data Integration, SDKs, qbXML, C++, Debugging, Desktop App, VB.NET, Database Architecture, Database Optimization, Fintech, SQL Server, Database Performance, Performance Tuning, Transact-SQL (T-SQL), Azure DevOps, XML, Docker, Optical Character Recognition (OCR), Multi-tenant SaaS, Databases, System Architecture, Enterprise Integration, Middleware, DevOps Automation, DevOps Engineer, Infrastructure as Code (IaC), Software Engineering, API Management, Order Management, Supply Chain, Minimum Viable Product (MVP), Database Design, Consulting, Technical Architecture, Cloud, On-premise, Infrastructure, HTML5, Front-end, Data Visualization, Electronic Data Interchange (EDI), Data Engineering, Angular, Artificial Intelligence (AI), TypeScript, QuickBooks Enterprise, Linux, Concurrency, Low-latency Software, FIX Protocol, SOAP, JSON, Redis, Event-driven Systems, Databricks, Stripe API, Webhooks, Microsoft Azure, OAuth, Windows, Continuous Delivery (CD), Web Architecture, NoSQL, Entity Framework Core, Azure Blobs, Protobuf, Continuous Integration (CI), XML/XSLT, Data Warehousing
Developer
2007 - PRESENT
Freelance
- Created a custom Windows educational game, Compublox Brain Games. The application was written in C# and used either an MS Access (home edition) or SQL Express (franchise version) database.
- Contributed to various projects, including WCF Web Services, an actor and model agency website, and numerous class libraries and components for larger systems.
- Built a prototype advertising and billboard management system for scheduling, monitoring, and distributing media and data content to a large restaurant chain.
Technologies: LINQ, TPL, Azure, REST, C#, SQL, Azure Cosmos DB, Architecture, Performance, SOLID Principles, API Design, HTML, XML Web Services, Software Development, System Documentation, API Documentation, Technical Documentation, API Integration, Integration, APIs, Full-stack, Writing & Editing, Documentation, Software Documentation, CSS, JavaScript, Technical Leadership, Engineering, Software Architecture, REST APIs, Intuit QuickBooks, Trading, Back-end, Microservices Architecture, Design Patterns, Domain-driven Design (DDD), Test-driven Development (TDD), CI/CD Pipelines, Data Modeling, Full-stack Development, Git, Entity Framework, Azure App Service, GitHub, .NET 6, Markdown, Technical Requirements, Back-end Development, Education Technology (Edtech), Enterprise Architecture, DevOps, SQL Server 7, Financials, Automation, Data Mapping, Microsoft Excel, Customer Relationship Management (CRM), Salesforce, Slack API, ASP.NET, Authentication, Service-oriented Architecture (SOA), Azure SSO, Cloud Architecture, Cloud Platforms, Solution Architecture, Amazon Web Services (AWS), Zendesk API, Business Strategy, Atlassian, User Documentation, QuickBooks Desktop, Data Integration, SDKs, qbXML, Debugging, Desktop App, VB.NET, Database Architecture, Database Optimization, SQL Server, Database Performance, Performance Tuning, Transact-SQL (T-SQL), Salesforce API, Azure DevOps, Docker, Optical Character Recognition (OCR), Multi-tenant SaaS, Databases, System Architecture, DevOps Automation, DevOps Engineer, Healthcare, Infrastructure as Code (IaC), Software Engineering, Microservices, API Management, Order Management, Supply Chain, Minimum Viable Product (MVP), Database Design, Consulting, Technical Architecture, Cloud, On-premise, HTML5, Front-end, Data Visualization, Data Engineering, Angular, Artificial Intelligence (AI), TypeScript, QuickBooks Enterprise, C++, Linux, Concurrency, Low-latency Software, Visual Basic for Applications (VBA), SOAP, JSON, PostgreSQL, Event-driven Systems, Webhooks, Microsoft Azure, OAuth, Windows, Continuous Delivery (CD), Web Architecture, NoSQL, Entity Framework Core, Azure Blobs, Protobuf, Apache Kafka, Continuous Integration (CI), XML/XSLT, SQL Server Analysis Services (SSAS), Data Warehousing
Senior Azure Integration Contractor
2022 - 2024
Petroineos International Trading Limited
- Served as a contract Azure engineer and assisted the chief architect with a blueprint to evolve an on-premises enterprise into a modern, cloud-based platform and data analytic enterprise from existing legacy on-premises systems, avoiding vendor lock-in.
- Demonstrated significant expertise in integrating and extracting data from the Amphora Symphony and Openlink Endur commodity trading systems and integrating voucher and payment transactions with SAP.
- Created blueprints for large-scale data analytics requirements, utilizing Power Query, the M language folding, DAX, SQL, and SQL Server Analysis Services (SSAS).
Technologies: .NET, SQL, Azure DevOps, SQL Server Analysis Services (SSAS), REST, SAP, Symphony, Data Modeling, Full-stack Development, Git, Entity Framework, Azure App Service, .NET 6, Markdown, Technical Requirements, Knowledge Bases, SharePoint, Excel 365, SharePoint Online, Confluence, System Integration, Back-end Development, Enterprise Architecture, DevOps, Azure Cloud Services, SQL Server 7, Financials, HMRC, Automation, Data Mapping, Microsoft Excel, Slack API, Jira REST API, Authentication, Azure SSO, Cloud Architecture, Solution Architecture, Atlassian, User Documentation, Atlassian Suite, Agile Project Management, Accounting, Data Integration, SDKs, Debugging, VB.NET, Database Architecture, Database Optimization, Fintech, SQL Server, Database Performance, Performance Tuning, Azure, Transact-SQL (T-SQL), XML, Docker, Databases, System Architecture, Enterprise Integration, Middleware, DevOps Automation, DevOps Engineer, Infrastructure as Code (IaC), Software Engineering, Microservices, API Management, Database Design, Consulting, Technical Architecture, Cloud, On-premise, Front-end, Data Visualization, Data Engineering, Artificial Intelligence (AI), Low-latency Software, FIX Protocol, Visual Basic, Visual Basic for Applications (VBA), Event-driven Systems, Databricks, Microsoft Azure, Windows, Continuous Delivery (CD), Web Architecture, Entity Framework Core, Azure Blobs, Apache Kafka, Continuous Integration (CI), Data Warehousing
Senior Azure Contractor
2021 - 2022
NewDay UK Ltd
- Served at the center of a senior team to provide development, design, testing, and process services to a major new Azure cloud initiative in the payment services industry, building a series of modern microservices and APIs entirely within Azure.
- Used the tech stack that included .NET Core microservices, REST APIs with OpenAPI documentation, ledger-based event sourcing stored on Azure Cosmos DB, and Azure Service Bus integration.
- Undertook various duties, including demos and presentations to company management, performing load and performance testing of services using Grafana k6, and system throughput profiling.
Technologies: .NET, Azure Cosmos DB, Azure DevOps, Azure Service Bus, Data Modeling, Git, Azure App Service, GitHub, .NET 6, Markdown, Technical Requirements, Excel 365, Miro, System Integration, Back-end Development, Enterprise Architecture, DevOps, Azure Cloud Services, Financials, HMRC, Automation, Data Mapping, Microsoft Excel, Authentication, Cloud Architecture, Cloud Platforms, API Gateways, Agile Project Management, Accounting, Data Integration, SDKs, Debugging, Fintech, Database Performance, Performance Tuning, Azure, Databases, System Architecture, Enterprise Integration, Middleware, DevOps Automation, DevOps Engineer, Infrastructure as Code (IaC), GitHub Actions, Software Engineering, Microservices, API Management, Minimum Viable Product (MVP), Database Design, Consulting, Technical Architecture, Cloud, Linux, Concurrency, Low-latency Software, Redis, Event-driven Systems, Webhooks, Microsoft Azure, Windows, Continuous Delivery (CD), Web Architecture, NoSQL, Entity Framework Core, Azure Blobs, Continuous Integration (CI)
Senior Azure Integration Contractor
2020 - 2021
Shell
- Provided assistance with the design, integration, deployment, and commissioning of a new cargo and freight system on the Azure cloud. Technologies used include Oracle, Salesforce, Azure Data Factory, and Azure Data Lake, deployed by Azure DevOps CI/CD automation.
- Acted in a supportive software development role on a major internal data analytics platform built around .NET Core 3.1.
- Created Salesforce custom objects and used the Salesforce Bulk and Metadata APIs to load bulk logistics data from the Openlink Endur CTRM system, including functional and loading testing.
Technologies: Azure, Azure Data Factory (ADF), Terraform, .NET, Oracle, Data Modeling, Full-stack Development, Git, Entity Framework, Markdown, Technical Requirements, Excel 365, SharePoint Online, Confluence, System Integration, Back-end Development, Enterprise Architecture, DevOps, Azure Cloud Services, HMRC, Automation, Data Mapping, Microsoft Excel, Customer Relationship Management (CRM), Salesforce, Jira REST API, Authentication, Azure SSO, Cloud Architecture, Cloud Platforms, Solution Architecture, Atlassian Suite, Agile Project Management, Accounting, Data Integration, SDKs, Debugging, Database Architecture, Database Optimization, Fintech, SQL Server, Database Performance, Performance Tuning, Transact-SQL (T-SQL), Salesforce API, Azure DevOps, XML, Docker, Databases, System Architecture, Enterprise Integration, DevOps Automation, DevOps Engineer, Infrastructure as Code (IaC), Software Engineering, API Management, Database Design, Consulting, Technical Architecture, Cloud, On-premise, Low-latency Software, Microsoft Azure, Windows, Continuous Delivery (CD), Web Architecture, NoSQL, Entity Framework Core, Continuous Integration (CI), XML/XSLT, SAP, Symphony, Data Warehousing
Chief Technical Officer | Architect | Team Lead
2017 - 2019
Galena Hill Systems, LLC
- Assisted in advising the company founder with building a prototype as a part-time freelancer, conducted remote sales presentations to raise seed funding, and then took on the responsibility of CTO and architect to get the product to market.
- Oversaw all standards and DevOps processes on a toolset that included Jira, Confluence, Azure DevOps for CI/CD, and management of NuGet package artifacts.
- Used NUnit and Moq for unit testing and Selenium and Specflow for automated UI testing.
- Integrated the system with the Stripe payment API, where subscriptions and products can be purchased, promotion discounts are run, and subscription upgrades can be prorated.
- Broke up components into reusable and scalable microservices and NuGet packages so that the enterprise could quickly adapt to ever-changing requirements and increasing load.
- Designed and provisioned a ZenDesk support and Zendesk guide knowledge base system for the completed SaaS product, including context-aware help integration into Zendesk articles. Additional training was provided on this product to key customers.
Technologies: Azure DevOps, Azure Table Storage, Stripe, QuickBooks Online, Workbench, Blockchain, Solidity, GRID, Azure Service Bus, Azure SQL, REST, C#, CTO, Architecture, SOLID Principles, Technical Writing, Zendesk, API Design, HTML, Software Development, System Documentation, API Documentation, Technical Documentation, API Integration, Integration, APIs, Full-stack, Writing & Editing, Documentation, Process Documentation, Software Documentation, CSS, JavaScript, Startups, Leadership, Technical Leadership, Coaching, Scalability, Engineering, Process Development, Advisory, Project Management, Software Architecture, QuickBooks API, REST APIs, Intuit QuickBooks, Back-end, Microservices Architecture, Design Patterns, Domain-driven Design (DDD), Test-driven Development (TDD), CI/CD Pipelines, Data Modeling, Full-stack Development, Git, Entity Framework, Azure App Service, Markdown, Technical Requirements, Knowledge Bases, Excel 365, Miro, Confluence, System Integration, Back-end Development, Enterprise Architecture, DevOps, Azure Cloud Services, Financials, Automation, Data Mapping, Microsoft Excel, Customer Relationship Management (CRM), ASP.NET, Service-oriented Architecture (SOA), Azure SSO, Cloud Architecture, Cloud Platforms, Virtual Environments, Solution Architecture, Stock Market, WebSockets, API Gateways, SignalR, Zendesk API, Business Strategy, Atlassian, User Documentation, Atlassian Suite, Agile Project Management, Accounting, Data Integration, SDKs, Debugging, Desktop App, Database Architecture, Database Optimization, Fintech, SQL Server, Database Performance, Performance Tuning, Azure, Transact-SQL (T-SQL), XML, Multi-tenant SaaS, Databases, Enterprise Integration, Middleware, DevOps Automation, DevOps Engineer, Software Engineering, Microservices, Minimum Viable Product (MVP), Database Design, Consulting, Technical Architecture, Cloud, HTML5, Front-end, Data Visualization, Data Engineering, QuickBooks Enterprise, Linux, Concurrency, Low-latency Software, Redis, Event-driven Systems, Stripe API, Webhooks, Microsoft Azure, OAuth, Windows, Continuous Delivery (CD), NoSQL, Entity Framework Core, Azure Blobs, Continuous Integration (CI), XML/XSLT
Team Lead | Senior Contractor
2015 - 2018
Sporting Solutions (Sporting Index Group)
- Led an agile team of engineers and delivered seven real-time sports trading systems into production under tight deadlines without compromising quality. All systems were built to scale elastically and tested to handle large spikes in load.
- Helped establish a culture of continually automating self-diagnosis and failover of systems to keep ownership costs low, with real-time monitoring on Splunk. The few latent residual issues were addressed via root cause analysis and log diagnosis.
- Used the test-first approach to delivery, automating the testing of the systems with NUnit, Specflow, and Selenium.
- Conducted technical interviews for new developer candidates, assisted London management with the growth strategy in Cape Town, nurtured and mentored the development teams, and furthered a culture of continual skills growth in the teams.
Technologies: Amazon Web Services (AWS), PostgreSQL, SpecFlow, Aerospike, Amazon S3 (AWS S3), Redshift, RabbitMQ, Apache Kafka, MongoDB, Apache HttpClient, REST, C#, Octopus Deploy, SOLID Principles, API Design, HTML, Software Development, API Documentation, Technical Documentation, API Integration, Integration, APIs, Full-stack, Writing & Editing, Documentation, Process Documentation, Software Documentation, CSS, JavaScript, Leadership, Technical Leadership, Coaching, Scalability, Engineering, Process Development, Advisory, Project Management, Software Architecture, REST APIs, Trading, Back-end, Microservices Architecture, Design Patterns, Domain-driven Design (DDD), Test-driven Development (TDD), CI/CD Pipelines, Data Modeling, Full-stack Development, Git, Entity Framework, Markdown, Technical Requirements, Jira, Knowledge Bases, Confluence, System Integration, Back-end Development, Enterprise Architecture, DevOps, Automation, Data Mapping, Microsoft Excel, Service-oriented Architecture (SOA), Virtual Environments, LAN, SNMP, Solution Architecture, WebSockets, API Gateways, SignalR, Sports, Atlassian, User Documentation, Atlassian Suite, Agile Project Management, Data Integration, Debugging, Desktop App, Database Performance, Performance Tuning, Docker, Multi-tenant SaaS, Databases, System Architecture, Enterprise Integration, Middleware, DevOps Automation, DevOps Engineer, Database Design, Technical Architecture, Cloud, On-premise, Data Visualization, Data Engineering, Concurrency, Low-latency Software, Event-driven Systems, Webhooks, Windows, Continuous Delivery (CD), NoSQL, Ninject, Continuous Integration (CI), XML/XSLT, Data Warehousing
Senior .NET Contractor
2014 - 2015
Old Mutual, PLC
- Contributed to the architecture and delivery of the online tax-free savings account product. Under tight deadlines, both back-end integration and front-end functionality were delivered for internet users to interact with various calculations.
- Assisted the front-end team on their legacy .NET 3.5 web stack with JavaScript, jQuery, and Ajax to hook up the calculator.
- Used NUnit and Neoload to conduct load testing of back-end APIs and introduced Selenium to the team to ensure the browser's functionality and compatibility testing.
Technologies: .NET, IBM WebSphere, Selenium, NUnit, Moq, TPL, XSL, XML, C#, Architecture, XSD, XML Web Services, Software Development, API Documentation, Technical Documentation, API Integration, Integration, APIs, Writing & Editing, Documentation, Process Documentation, Software Documentation, CSS, JavaScript, Technical Leadership, Coaching, Scalability, Engineering, Process Development, Advisory, Project Management, Software Architecture, REST APIs, Trading, Back-end, Design Patterns, Domain-driven Design (DDD), Test-driven Development (TDD), CI/CD Pipelines, Data Modeling, Full-stack Development, Git, Markdown, Technical Requirements, SharePoint, Visio, System Integration, Back-end Development, Enterprise Architecture, SQL Server 7, Financials, Automation, Data Mapping, Microsoft Excel, Virtual Environments, LAN, WAN, Solution Architecture, Stock Market, WebSockets, Accounting, Data Integration, Debugging, Database Architecture, Database Optimization, Fintech, SQL Server, Performance Tuning, Transact-SQL (T-SQL), Databases, Middleware, Database Design, Consulting, Technical Architecture, On-premise, Front-end, Low-latency Software, SOAP, Windows, Continuous Delivery (CD), Continuous Integration (CI), XML/XSLT
Senior Software Engineering Contractor
2009 - 2015
Dynamic Visual Technologies, Pty., Ltd.
- Conducted technical interviews for .NET positions within DVT and for the talent exchange, DVT's recruitment subsidiary.
- Served as the architect and lead developer on the vehicle tracking system integration between MUA's systems and the NetStar and Tracker vehicle tracking companies, using .Net 4, SQL 2008, WCF, and EF 4.3.
- Customized SharePoint to enable an automated claims and policy document processing workflow as well as build a lightweight service bus across MSMQ.
- Acted as the senior consultant and lead developer on the 2013 maintenance release of a risk modeling tool on behalf of BSG for a London-based reinsurance company.
- Assisted as a developer with the addition of new features to a .NET Nuke 4 system.
Technologies: MVC Razor, Web Forms, ASP.NET Web Forms, Microsoft SQL Server, C#, BizTalk, SOLID Principles, API Design, HTML, XML Web Services, BizTalk Server, Software Development, System Documentation, API Documentation, Technical Documentation, API Integration, Integration, APIs, Full-stack, Writing & Editing, Documentation, Process Documentation, Software Documentation, CSS, JavaScript, Leadership, Technical Leadership, Coaching, Scalability, Engineering, Process Development, Advisory, Project Management, Software Architecture, REST APIs, Trading, Back-end, Microservices Architecture, Design Patterns, Domain-driven Design (DDD), Test-driven Development (TDD), CI/CD Pipelines, Data Modeling, Full-stack Development, Git, Entity Framework, GitHub, Markdown, Jira, Knowledge Bases, Visio, System Integration, Back-end Development, Enterprise Architecture, DevOps, Azure Cloud Services, Financials, Automation, Microsoft Excel, Service-oriented Architecture (SOA), Virtual Environments, LAN, Solution Architecture, Amazon Web Services (AWS), WebSockets, User Documentation, Atlassian Suite, Agile Project Management, Accounting, QuickBooks Desktop, Data Integration, Debugging, Desktop App, VB.NET, Database Architecture, Database Optimization, Fintech, SQL Server, Database Performance, Performance Tuning, Transact-SQL (T-SQL), XML, Optical Character Recognition (OCR), Multi-tenant SaaS, Databases, Enterprise Integration, DevOps Engineer, Supply Chain, Minimum Viable Product (MVP), Database Design, Technical Architecture, Cloud, HTML5, TypeScript, Concurrency, Visual Basic, Visual Basic for Applications (VBA), SOAP, Redis, Event-driven Systems, Microsoft Azure, OData, Windows, Continuous Delivery (CD), StructureMap, TeamCity, Continuous Integration (CI), XML/XSLT, SAP
Contract Senior Developer, Retail BPM Team
2013 - 2014
Allan Gray
- Served as a consultant developer on the retail IT business process management team, delivering integration and line of business services for the business across a wide stack of commercial and open-source technologies.
- Integrated Siebel CRM and Oracle line of business systems to bespoke SOA services using RabbitMQ, Protobuf, and caching with Riak.
- Participated in migrating the existing .NET and Java microservices to Scala.
Technologies: Jenkins, RabbitMQ, Microsoft SQL Server, Siebel, Oracle, Riak, Protobuf, LINQ, TPL, Java, Scala, .NET 4, Integration, API Design, HTML, Software Development, API Documentation, Technical Documentation, API Integration, APIs, Writing & Editing, Process Documentation, Software Documentation, Technical Leadership, Coaching, Scalability, Engineering, Advisory, REST APIs, Trading, Back-end, Design Patterns, Domain-driven Design (DDD), Test-driven Development (TDD), CI/CD Pipelines, Data Modeling, Git, GitHub, Markdown, Jira, Knowledge Bases, Miro, System Integration, Back-end Development, Enterprise Architecture, Financials, Microsoft Excel, Customer Relationship Management (CRM), Virtual Environments, Stock Market, Agile Project Management, Accounting, Data Integration, Debugging, Database Architecture, Fintech, SQL Server, Database Performance, Performance Tuning, Transact-SQL (T-SQL), Databases, Enterprise Integration, Database Design, On-premise, Data Engineering, Concurrency, Windows, Continuous Delivery (CD), NoSQL, Continuous Integration (CI)
Biztalk Integration Specialist, Contract .NET Developer
2009 - 2013
Woolworths, Pty., Ltd.
- Integrated custom Woolworths' systems to suppliers' purchase order management systems.
- Led a small .NET team on Woolworths' EDI processing application, which assesses and validates all trade invoices presented by suppliers to Woolworths.
- Advised the Woolworths chief architect on application and integration matters.
- Assisted with the training of junior developers and also assisted in bringing new technologies into their development stack.
Technologies: Windows Communication Foundation (WCF), Microsoft SQL Server, MVC Razor, ASP.NET Web Forms, ASP.NET, C#, BizTalk 2010, Architecture, Integration, XSD, XML Web Services, BizTalk Server, Software Development, API Documentation, Technical Documentation, API Integration, APIs, Full-stack, Writing & Editing, Process Documentation, Software Documentation, Leadership, Technical Leadership, Coaching, Scalability, Engineering, Advisory, Software Architecture, REST APIs, Back-end, Design Patterns, CI/CD Pipelines, Data Modeling, Full-stack Development, Entity Framework, Markdown, Visio, System Integration, Back-end Development, Enterprise Architecture, DevOps, SQL Server 7, Financials, Microsoft Excel, LAN, WAN, Solution Architecture, User Documentation, Accounting, Data Integration, Debugging, Desktop App, Database Architecture, Database Optimization, SQL Server, Database Performance, Performance Tuning, Transact-SQL (T-SQL), Databases, System Architecture, Enterprise Integration, Middleware, Order Management, Supply Chain, Consulting, Technical Architecture, On-premise, Electronic Data Interchange (EDI), Concurrency, Low-latency Software, SOAP, Windows, Continuous Delivery (CD), XML/XSLT
Lead Consultant
2007 - 2008
Business Edge Systems, Pty., Ltd.
- Redeveloped a legacy medical aid system written in ATK on the IBM Universe DBMS into a contemporary Microsoft .NET 3.0 Smart Client application for Anglo Platinum.
- Mentored a team to assist in adapting from legacy procedural database coding to modern object-orientated design, including training sessions for .NET and C#.
- Automated Smart Client deployment using the MS Smart Client Application Block and ClickOnce installation.
Technologies: SAP Remote Function Call (RFC), Service, Reporting, SQL, .NET, Workflow, Windows Communication Foundation (WCF), C#, Architecture, Technical Writing, API Documentation, Integration, APIs, Writing & Editing, Process Documentation, Software Documentation, JavaScript, Leadership, Technical Leadership, Coaching, Advisory, Project Management, Software Architecture, Back-end, Design Patterns, Domain-driven Design (DDD), CI/CD Pipelines, Data Modeling, Full-stack Development, Jira, System Integration, Back-end Development, Enterprise Architecture, Debugging, Desktop App, Transact-SQL (T-SQL), Databases, Enterprise Integration, Healthcare, Database Design, Consulting, Technical Architecture, On-premise, Windows
Systems Architect
2005 - 2007
Rand Mutual Assurance Limited
- Ensured that IT systems were aligned with RMA’s strategy and, conversely, that systems were positioned to enable growth in RMA’s business.
- Led a small team of three developers involved in the design and roll-out of CompDiv, an employer accident/disease/IOD claims submission system. The system integrates with RMA’s claims system.
- Implemented an effective, low-cost imaging and scanning solution in Sharepoint for documents (VS 2005, C#). The solution included automated barcode recognition, WebDAV, and indexing metadata via the SharePoint Web Services and CAML.
Technologies: WebDAV, SOAP, BizTalk, Microsoft SQL Server, SharePoint, COM, Architecture, .NET, C#, HTML, MSMQ, System Documentation, API Documentation, Integration, APIs, Full-stack, Process Documentation, JavaScript, Leadership, Technical Leadership, Coaching, Advisory, Project Management, Software Architecture, Back-end, Design Patterns, CI/CD Pipelines, Full-stack Development, System Integration, Back-end Development, Enterprise Architecture, SQL Server 7, Financials, WAN, Desktop App, Database Architecture, SQL Server, Database Performance, Transact-SQL (T-SQL), Databases, System Architecture, Enterprise Integration, Middleware, Healthcare, Database Design, Technical Architecture, On-premise, Front-end, Windows
Software Engineer | Architect
2000 - 2005
Software Futures Pty Ltd
- Served as the lead developer and architect of the Investec Dividends loyalty program for Investec Private Bank, with integration to an AS/400 transaction system and a proprietary CRM System.
- Served as the lead architect on a system that processes workman's compensation insurance claims for the South African mining sector. The system was built using an ASP Classic Web UI and a tiered COM-based back end on top of an SQL Server database.
- Built additional workflow, client portal, and medical assessment modules to extend the core functionality.
- Integrated the claims system with five other systems using Microsoft BizTalk Server.
- Managed a team of up to 15 developers in delivering the claims and medical insurance systems.
Technologies: Microsoft SQL Server, Active Server Pages (ASP), XML, COM, Visual Basic, Architecture, HTML, MSMQ, System Documentation, APIs, Process Documentation, JavaScript, Leadership, Technical Leadership, Advisory, Project Management, Software Architecture, Back-end, Design Patterns, Full-stack Development, Visio, System Integration, Back-end Development, Enterprise Architecture, Virtual Environments, Debugging, Transact-SQL (T-SQL), Databases, System Architecture, Enterprise Integration, Healthcare, Database Design, Windows
Software Development Engineer
1997 - 2000
Absolute Systems Pty Ltd
- Worked on a variety of projects including the delivery of ATM banking software, proof of concept work with biometric devices and smart cards, and central management of remote coupon printing devices.
Technologies: COM, Active Server Pages (ASP), Microsoft SQL Server, Microsoft Visual C++, HTML, MSMQ, APIs, JavaScript, Technical Leadership, Project Management, Back-end, Design Patterns, System Integration, Back-end Development, LAN, Desktop App, Transact-SQL (T-SQL), Databases, Software Engineering, Database Design, Front-end, Linux, Windows
Engineer
1994 - 1997
Anglo American Corporation
- Built software to support and process data from the Airborne Multispectral Scanner instrument and allow geoscientists to access data generated by the instrument.
- Developed SpectNT software to visualise and process data from the hand held PIMA spectral measuring instrument.
- Liased with senior management on project progress, technical capabilities, and cost management.
- Involved in documenting and setting up operating processes and procedures for the airborne instrument, logistics, calibration, and maintenance.
- Wrote end user, training, and system design documentation for the SpecTNT software package I had developed.
Technologies: Microsoft SQL Server, Microsoft Foundation Classes (MFC), Microsoft Foundation Class (MFC) Library, C++, System Documentation, Project Management, Transact-SQL (T-SQL), Databases, Software Engineering, Database Design, Windows
Experience
Arene.io | Financial Accounting Certified by the Ethereum Blockchain
Led a global team of developers in delivering Arene, an Azure .NET-based microservices enterprise, integrating with Quickbooks, Stripe, and public and private Ethereum blockchains. My responsibilities included those of CTO and architect: applying for US patents for our inventions, presenting technical and business advantages to investors, and driving the technical standards, reusable NuGet components, and DevOps processes for the team to deliver the system to production.
My StackOverflow Profile
As much as I enjoy learning from others and keeping my skills current, I also gain immense satisfaction from assisting and mentoring other developers. I have been a member of StackOverflow since 2010, had the third-highest known reputation for a South African, and was the top BizTalk contributor for 18 months.
My GitHub Profile
https://github.com/nonnbAlthough most of my work is in private and proprietary repositories, I often commit code used during presentations and samples for Q&A answers on forums like Stack Overflow. One of my passions is to mentor new developers in their software engineering careers.
Software and Architectural Consultant
I assisted the architect and team lead with guidance and review on Azure best practices, including microservice deployment on Azure App Service plans, database modeling, performance tuning on CosmosDB, and gRPC integration.
Senior C++ Engineer Developing Process Control Analytical Applications
https://www.getmissioncontrols.com/I was a senior engineer in a small development team that assisted the founder in taking multiple software applications for the Plant management and Process Control industry (DeltaV) to market. This included helping with design and architecture, development in C++ and XSLT, technical writing of ISO-style engineering and end user documentation, and Wiki articles on Confluence.
Technical Writing Consultant for The Kwil Kuneiform Product
https://www.kwil.com/Assisted the founders and developers of the Kwil Kuneiform SaaS product with technical writing, allowing multiple classes of stakeholders, including investors, customers, and developers, to navigate and understand the product. Includes training and tutorial samples. Additionally, left the customer with a set of best practices and rationale for self-sufficiency in technical writing for future requirements.
Integration Project Between Command Akon JWS Ticketing and Viewpoint Spectrum ERP Systems
https://www.midstatesmaterials.com/I was the sole developer of a fully automated integration service that moved financial documents from the JWS building materials ticketing system to the parent company's cloud-based spectrum ERP system. Synchronization includes customers, invoices, payments, credit memos, and adjustments. The system runs at scheduled times in the business day and provides reconciliation reporting after each run. Deliverables included technical and end user documentation to allow self-sufficiency in maintaining GL and company profit center mappings.
LMS Content for Training and Skills Testing for Business Process Discovery System
https://www.skan.ai/process-intelligenceUsing the Northpass LMS application and the iorad interactive tutorial tool, I created training modules with certification examinations for staff, management, and system administration user functions. Skan AI Process Intelligence is a leading enterprise business process discovery tool.
JavaScript Media and Video Player for Backtracks
As a developer, I built a JavaScript front-end library to obtain podcast media playlists from RSS and Atom feeds and then provided a UI to allow users to interact with and control the podcast. Tracking and observability were included to allow Backtracks to determine the popularity and portions of podcasts that were of most interest to end users.
Internal, External, and Governance Documentation for Healthcare Visitation Software
https://riverkidstexas.com/Delivered the end-user and legal compliance and certification documentation for a large Texas-based pediatric home-health agency for all classes of end-users (medical service providers, supervisors, back-office administration, and US state and federal compliance portal). At all times, the confidentiality of patient identity was maintained.
Zendesk Customization and Bespoke After-service Survey Application on AWS
https://www.flywithcraft.com/WORK DONE
• Implemented custom workflow, integration, triggering, and management reports in Zendesk (VOIP, chat, and mail) and provided operations policy templates in the Zendesk Guide.
• Built a bespoke .NET Core 6 customer satisfaction survey app hosted in AWS connected to a Redshift data warehouse using AI transcription, with reporting and alerting capabilities.
• Implemented custom workflow, integration, triggering, and management reports in Zendesk (VOIP, chat, and mail) and provided operations policy templates in the Zendesk Guide.
• Built a bespoke .NET Core 6 customer satisfaction survey app hosted in AWS connected to a Redshift data warehouse using AI transcription, with reporting and alerting capabilities.
Education
1988 - 1992
Bachelor of Science Degree in Electrical Engineering, Light Current
University of the Witwatersrand - Johannesburg, South Africa
Certifications
DECEMBER 2023 - PRESENT
Microsoft Certified: DevOps Engineer Expert
Microsoft
APRIL 2023 - PRESENT
Microsoft Certified: Azure Administrator Associate
Microsoft
APRIL 2023 - PRESENT
Microsoft Certified: Azure Solutions Architect Expert
Microsoft
OCTOBER 2021 - PRESENT
Microsoft Certified: Azure Developer Associate
Microsoft
MAY 2017 - PRESENT
Functional Program Design in Scala
EPFL (École polytechnique fédérale de Lausanne) via Coursera
JULY 2014 - PRESENT
Functional Programming Principles in Scala
EPFL (École polytechnique fédérale de Lausanne)
NOVEMBER 2013 - PRESENT
MCSD (Web Applications 4.5)
Microsoft Corp.
FEBRUARY 2013 - PRESENT
MCTS - Microsoft Biztalk Server 2010
Microsoft
DECEMBER 2011 - DECEMBER 2015
MCPD (Web Developer 4)
Microsoft
Skills
Libraries/APIs
Moq, REST APIs, Stripe, Salesforce API, Entity Framework, Web API 2, Protobuf, LINQ, Zendesk API, Microsoft Foundation Class (MFC) Library, TPL, Apache HttpClient, Microsoft Foundation Classes (MFC), React, Node.js, QuickBooks API, Slack API, Jira REST API, SignalR, Stripe API
Tools
RabbitMQ, Confluence, Microsoft Excel, Git, Jira, NuGet, Autofac, Ninject, Azure App Service, GitHub, Atlassian, Atlassian Suite, Microsoft Visual C++, SAP Remote Function Call (RFC), Jenkins, StructureMap, TeamCity, Help+Manual, Terraform, Amazon Transcribe, Miro, Visio
Languages
XSL, C#, SQL, Transact-SQL (T-SQL), XSLT, XML/XSLT, Markdown, XML, HTML, XSD, JavaScript, VB.NET, C++, Active Server Pages (ASP), Visual Basic, Scala, Java, Solidity, Web Services Description Language (WSDL), CSS, HTML5, TypeScript, Visual Basic for Applications (VBA)
Frameworks
.NET, .NET 4, ASP.NET, NUnit, Entity Framework Core, MVC Razor, Selenium, SpecFlow, .NET 6, ASP.NET Web Forms, gRPC, .NET Core, Boost, React Native, Angular
Paradigms
Azure DevOps, REST, Automation, Database Design, Continuous Integration (CI), Web Architecture, Microservices, Microservices Architecture, Design Patterns, Test-driven Development (TDD), DevOps, Service-oriented Architecture (SOA), Continuous Delivery (CD), Agile Project Management
Platforms
Azure, Zendesk, SharePoint, Oracle, Microsoft, Windows, Linux, IBM WebSphere, Blockchain, Amazon Web Services (AWS), Apache Kafka, Ethereum, Windows Server, AWS Elastic Beanstalk, Salesforce, Docker, Databricks
Storage
Microsoft SQL Server, Azure SQL, Azure Cloud Services, SQL Server 7, Data Integration, Database Architecture, Database Performance, Databases, On-premise, Aerospike, SQL Server 2017, Azure Blobs, Azure Table Storage, PostgreSQL, MongoDB, Azure Cosmos DB, SQL Server Analysis Services (SSAS), JSON, Web Forms, Riak, NoSQL, Amazon S3 (AWS S3), Redshift, Redis
Industry Expertise
Project Management, Accounting, Healthcare
Other
Integration, SOLID Principles, Architecture, Performance, Technical Writing, Knowledge Bases, Software Development, Engineering, API Design, Software Architecture, MSMQ, System Documentation, API Documentation, Technical Documentation, APIs, API Integration, Writing & Editing, Documentation, Software Documentation, Back-end, Data Modeling, Technical Requirements, System Integration, Back-end Development, Data Mapping, User Documentation, QuickBooks Desktop, Debugging, Database Optimization, SQL Server, Performance Tuning, System Architecture, Enterprise Integration, Software Engineering, Consulting, Technical Architecture, SOAP, Windows Communication Foundation (WCF), Service, BizTalk 2010, Azure Service Bus, BizTalk, Mentorship, CTO, XML Web Services, Process Documentation, Startups, Leadership, Technical Leadership, Coaching, Scalability, Process Development, Advisory, Trading, Domain-driven Design (DDD), CI/CD Pipelines, Symphony, Full-stack Development, Excel 365, Enterprise Architecture, Financials, Customer Relationship Management (CRM), Azure SSO, Cloud Architecture, Cloud Platforms, Solution Architecture, WebSockets, Sports, Business Strategy, SDKs, qbXML, Desktop App, Fintech, Multi-tenant SaaS, Middleware, DevOps Automation, DevOps Engineer, Order Management, Supply Chain, Cloud, Concurrency, Low-latency Software, Event-driven Systems, Webhooks, Microsoft Azure, COM, WebDAV, Workflow, Reporting, Siebel, GRID, Workbench, QuickBooks Online, Azure Data Factory (ADF), Intuit QuickBooks, Octopus Deploy, BizTalk Server, Azure Cloud Security, Web3, Content Creation, Learning Management Systems (LMS), Training, BPM, CSS5, Full-stack, Content Writing, SAP, System Administration, Amazon Redshift, SharePoint Online, Education Technology (Edtech), HMRC, Authentication, Virtual Environments, LAN, WAN, SNMP, Stock Market, API Gateways, Optical Character Recognition (OCR), Infrastructure as Code (IaC), GitHub Actions, API Management, Minimum Viable Product (MVP), Infrastructure, Front-end, Data Visualization, Electronic Data Interchange (EDI), Data Engineering, Artificial Intelligence (AI), QuickBooks Enterprise, FIX Protocol, OAuth, OData, Data Warehousing
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