François is available for hire
Hire FrançoisFrançois Bonin
Verified Expert in Engineering
.NET Developer
Paris, France
Toptal member since September 16, 2018
Bio
Since 2000, François has been building software systems with various technologies. After having been awarded the Microsoft MVP title four years in a row for his deep knowledge of the .NET platform, he discovered a passion for building and monitoring distributed systems as an Amazon senior engineer. During that time, he worked with teams across continents and developed an affinity for cloud software.
Portfolio
Deckers - IT
C#, Amazon Web Services (AWS), Event-driven Architecture, AWS Lambda...
WeChop
TensorFlow, Angular, Chef, Android, .NET, Distributed Systems, C#.NET, C#...
AppDynamics
Service, Profiling, C++, Windows Services, .NET, Distributed Systems, C#.NET...
Experience
- .NET - 16 years
- Databases - 15 years
- Architecture - 15 years
- REST - 12 years
- Solution Architecture - 10 years
- Microservices - 8 years
- AI Architecture - 1 year
- Amazon Bedrock AgentCore - 1 year
Preferred Environment
Git, IntelliJ IDEA, Visual Studio, Linux, Windows
The most amazing...
...design I’ve created was for an automated enterprise bus that interoperated hundreds of services in various styles, data formats, and protocols with no coding.
Work Experience
C# Developer
2024 - 2026
Deckers - IT
- Built back-end services to support the expansion of the business to Europe and the Middle East region.
- Monitored production services and ensured continuous uptime.
- Designed an event-driven architecture for the fanning-out of large-scale user actions and decisions to multiple external APIs.
Technologies: C#, Amazon Web Services (AWS), Event-driven Architecture, AWS Lambda, Amazon API Gateway, Amazon DynamoDB, Amazon Simple Queue Service (SQS), Amazon EventBridge, REST APIs, RESTful Services, Datadog, Amazon CloudWatch, AWS CloudFormation, Continuous Integration (CI), Continuous Delivery (CD), System Architecture, Enterprise Architecture, Serverless Framework, System Design, System Integration, AI-assisted Development, Microsoft Azure, Data Analytics, Technical Documentation, Security Architecture
Chief Technology Officer
2017 - 2020
WeChop
- Built and maintained a distributed system to support eCommerce and delivery vehicle routing operations.
- Constructed a communication infrastructure on top of Telegram bots using the Microsoft Bot framework.
- Wrote a recommendation engine for customers of the eCommerce engine, using TensorFlow. Coded an implementation of a vehicle routing and scheduling heuristic.
- Plugged in hand-refined SQL queries into Amazon QuickSight to provide business intelligence to the operations management.
- Managed the continuous delivery ecosystem of the company.
- Architected and coded the entire system (mobile application and back-end microservices) for a food delivery and courier-tracking application.
Technologies: TensorFlow, Angular, Chef, Android, .NET, Distributed Systems, C#.NET, C#, MySQL, Unit Testing, REST, Software Architecture, Architecture, AWS Lambda, Localization, Amazon Web Services (AWS), SQL, SOLID Principles, MVC Design, REST APIs, Amazon CloudWatch, Lambda Functions, Serverless, Serverless Architecture, Solution Architecture, Docker, React, Third-party Integration, Web API, Model View Controller (MVC), jQuery, Amazon DynamoDB, Amazon API Gateway, Terraform, CI/CD Pipelines, Git, Continuous Integration (CI), APIs, Integration Testing, Bash Script, Full-stack Development, Back-end, API Integration, TypeScript, Redis, Cryptography, LINQ, FTP, FTP Servers, Entity Framework, Performance, Integration, RESTful Services, Webhooks, ASP.NET, Blazor, CSS3, Data Processing, DevOps, Scalable Application, Scalable Architecture, Cloud, Full-stack, Scheduling, GitHub, Security Design, Kubernetes, Software Design, Leadership, Scalability, Google Cloud Platform (GCP), Agile, Google Cloud, Data Privacy, Cybersecurity, CTO, AWS Cloud Architecture, Technical Architecture, Technical Leadership, .NET 6, RESTful Microservices, Software Engineering, SQL Server 2017, Payment APIs, Online Payments, API Documentation, Dapper, Entity Framework Core, OAuth, Security, ASP.NET MVC, Continuous Delivery (CD), Data Pipelines, API Design, API/Services Architecture, ASP.NET Web Forms, Razor Pages, NoSQL, Amazon EventBridge, JavaScript, Back-end Development, Cloud Architecture, SMPP, Twilio, Service-oriented Architecture (SOA), SQL Server Reporting Services (SSRS), Concurrency, Data Structures, Concurrent Programming, Object-oriented Programming (OOP), Software Requirements Specifications (SRS), AI Architecture, Cloud Infrastructure, Code Review, Performance Optimization, Database Optimization, Multi-tenant Architecture, Troubleshooting, Event-driven Systems, Database Design, Financial APIs, Role-based Access Control (RBAC), Stripe API, RESTFul APIs, Infrastructure, Fractional CTO, System Architecture, Enterprise Architecture, eCommerce, Serverless Framework, System Design, eCommerce CMS, ERP Systems, System Integration, Performance Improvement, Amazon Cognito, AI-assisted Development, Data Modeling, Data Analytics, Multi-tenant SaaS, Security Architecture, Test-driven Development (TDD), Team Leadership & Supervision, Startups
Principal Engineer
2015 - 2016
AppDynamics
- Defined and oversaw the end product's features (for the .NET platform).
- Wrote and maintained a Windows service that performed just-in-time IL injections into applications.
- Built tools to measure the performance overhead of monitoring agents.
- Designed and built a network-performance-monitoring system that intercepts socket-based events, compiles statistics, and transmits them to a collection server.
- Maintained a Java-to-C# translation tool to facilitate the porting of existing features between platforms.
Technologies: Service, Profiling, C++, Windows Services, .NET, Distributed Systems, C#.NET, C#, Unit Testing, .NET Core, Software Architecture, Azure, SOLID Principles, Docker, MongoDB, Architecture, Third-party Integration, Visual Studio, .NET 4, Node.js, PostgreSQL, CI/CD Pipelines, Python, Java, Git, Continuous Integration (CI), Integration Testing, Java 11, JUnit, Mockito, Back-end, API Integration, TypeScript, Redis, SQL Server 2012, Win32, LINQ, Win32 API, Entity Framework, Performance, Webhooks, Windows Server, Data Processing, DLL, DevOps, Windows Presentation Foundation (WPF), GitHub, Kubernetes, Software Design, Leadership, Scalability, Agile, Technical Architecture, Technical Leadership, RESTful Microservices, Software Engineering, SQL Server 2017, API Documentation, Technical Writing, Entity Framework Core, Multitenancy, SaaS Design, Continuous Delivery (CD), API Design, API/Services Architecture, Event-driven Architecture, NoSQL, Back-end Development, Concurrency, Concurrent Programming, Visual Studio .NET, Jira, Software Requirements Specifications (SRS), Code Review, Performance Optimization, Troubleshooting, Event-driven Systems, RESTFul APIs, System Architecture, System Design, Performance Improvement, Microsoft Azure, Time Series Analysis, Data Modeling, Data Analytics, Technical Documentation, Security Architecture, Team Leadership & Supervision, Startups
Senior Software Engineer
2011 - 2015
Amazon.com
- Designed and led the teams that built and operated large-scale, Java-distributed systems using message queues, NoSQL databases, autoscaling, and decoupled architectures.
- Architected cloud-based workflow systems with integrated compensation patterns.
- Built a load-testing, Python-based solution for web services.
- Designed and built a service-oriented, architecture-based model for the interoperation of technologically disparate services across the company. Configuration of that service was done using an XML-based, service-definition language.
- Architected and built an entirely automated enterprise service bus for distributed services.
- Mentored developers in the use of professional software-development methodologies and tools: continuous deployment, automated testing, instrumentation, and monitoring.
Technologies: Microservices, Google Guice, Spring, Amazon DynamoDB, Amazon Simple Queue Service (SQS), Amazon EC2, Amazon S3 (AWS S3), REST, Service-oriented Architecture (SOA), Cloud Architecture, Algorithms, Distributed Systems, Java, Unit Testing, Architecture, Software Architecture, Software Development Lifecycle (SDLC), AWS Lambda, Localization, Amazon Web Services (AWS), AWS Cloud Architecture, SQL, SOAP, SOLID Principles, REST APIs, Amazon CloudWatch, Lambda Functions, Serverless, Serverless Architecture, Solution Architecture, Third-party Integration, Web API, Model View Controller (MVC), jQuery, SQL Server 2016, Node.js, Amazon API Gateway, CI/CD Pipelines, Python, Git, Continuous Integration (CI), APIs, Integration Testing, JUnit, Mockito, Bash Script, Full-stack Development, Back-end, API Integration, C++, FTP, FTP Servers, Performance, Integration, RESTful Services, Webhooks, CSS3, Data Processing, DevOps, Scalable Application, Scalable Architecture, Cloud, Full-stack, Front-end, Windows Presentation Foundation (WPF), AWS Fargate, Security Design, Software Design, Leadership, Scalability, Agile, Artificial Intelligence (AI), Machine Learning, Data Privacy, Cybersecurity, Web Scraping, Technical Architecture, Technical Leadership, RESTful Microservices, Software Engineering, SQL Server 2017, WCF Web Services, API Documentation, Technical Writing, Dapper, Security, Multitenancy, SaaS Design, Continuous Delivery (CD), Data Pipelines, MongoDB, API Design, API/Services Architecture, Event-driven Architecture, NoSQL, Amazon EventBridge, JavaScript, Back-end Development, Standard Template Library (STL), Elastic Load Balancers, Concurrency, Data Structures, IntelliJ IDEA, Concurrent Programming, AWS IoT, Object-oriented Programming (OOP), Hibernate, Software Requirements Specifications (SRS), AI Architecture, Cloud Infrastructure, Code Review, Performance Optimization, Database Optimization, Multi-tenant Architecture, Troubleshooting, Event-driven Systems, API Gateways, Database Design, Role-based Access Control (RBAC), RESTFul APIs, Infrastructure, System Architecture, Enterprise Architecture, eCommerce, Serverless Framework, System Design, eCommerce CMS, System Integration, Performance Improvement, Amazon Cognito, Data Modeling, Data Analytics, Elasticsearch, Identity & Access Management (IAM), Multi-tenant SaaS, Technical Documentation, Security Architecture, Team Leadership & Supervision
Architect (Contractor)
2008 - 2010
Orange
- Implemented business Intelligence projects with SQL Server Reporting Services.
- Worked in a distributed team of over 40 developers.
- Managed software projects with the Team Foundation Server.
- Architected and built a mobile phone-based money transfer system using .NET, and an Oracle back-end.
- Developed and deployed WPF client applications to serve as the management front end for mobile-transfer applications.
Technologies: BizTalk, Windows Presentation Foundation (WPF), SQL Server Reporting Services (SSRS), TFS, SMPP, ClickOnce, Windows Communication Foundation (WCF), MySQL, SQL, SOAP, SOLID Principles, Solution Architecture, Third-party Integration, Git, APIs, Integration Testing, JUnit, Microsoft Access, Back-end, C++, Software Consulting, SQL Server 2012, Win32, ADO.NET, FTP, FTP Servers, Win32 API, Inno Setup, SQL Server Integration Services (SSIS), Performance, Integration, Windows Server, .NET, ASP.NET, Data Processing, ASCII, DLL, Scalable Application, Scalable Architecture, Security Design, Software Design, Agile, Artificial Intelligence (AI), Machine Learning, Technical Architecture, Windows Forms (WinForms), C#.NET WinForms, Software Engineering, WCF Web Services, API Documentation, Technical Writing, Security, API Design, ASP.NET Web Forms, Event-driven Architecture, JavaScript, Back-end Development, Standard Template Library (STL), Twilio, Microsoft Data Transformation Services (now SSIS), Service, Elastic Load Balancers, Service-oriented Architecture (SOA), Concurrency, Data Structures, IntelliJ IDEA, Concurrent Programming, Visual Studio .NET, Object-oriented Programming (OOP), Jira, Hibernate, Software Requirements Specifications (SRS), Code Review, Performance Optimization, Multi-tenant Architecture, Troubleshooting, Event-driven Systems, Forex, Database Design, Role-based Access Control (RBAC), Mortgages, System Architecture, Enterprise Architecture, System Design, Performance Improvement, Data Analytics, Technical Documentation, Test-driven Development (TDD)
Software Contractor
2004 - 2008
TopCoder Software
- Performed architecture validation and designed the J2EE systems for projects ranging from order management to healthcare provision systems.
- Built a .NET-based smart client applications for ratings and viewership tracking.
- Constructed an ASP.NET MVC document management system.
- Wrote unit and integration tests to ensure full coverage of the code base.
- Performed component architecture for an application-building system based on NAnt.
Technologies: Microsoft Commerce Server, Standard Template Library (STL), C++, JUnit, Windows Communication Foundation (WCF), ASP.NET, C#.NET, Unit Testing, Localization, SQL, SOAP, SOLID Principles, MVC Design, REST APIs, Solution Architecture, Visual Studio, APIs, Integration Testing, Full-stack Development, Microsoft Access, Back-end, API Integration, Microsoft SQL Server, Cryptography, Software Consulting, SQL Server 2012, Win32, ADO.NET, FTP, FTP Servers, Win32 API, Inno Setup, SQL Server Integration Services (SSIS), Integration, Windows Server, .NET, ASCII, DLL, System Service & Hardware Control, Point of Sale, Full-stack, Front-end, Security Design, Software Design, Web Scraping, Windows Forms (WinForms), C#.NET WinForms, Software Engineering, API Documentation, Technical Writing, JavaScript, Back-end Development, TFS, SMPP, Mathematics, Microsoft Data Transformation Services (now SSIS), Service, Oracle, Concurrency, Data Structures, IntelliJ IDEA, Concurrent Programming, Visual Studio .NET, Object-oriented Programming (OOP), Jira, PostgreSQL, Hibernate, Geometry, Code Review, Performance Optimization, Database Optimization, Multi-tenant Architecture, Troubleshooting, Forex, Database Design, Role-based Access Control (RBAC), Mortgages, Enterprise Architecture, System Design, Time Series Analysis, Data Analytics, Test-driven Development (TDD)
Lead Developer
2000 - 2004
theSOFTtribe
- Architected and helped develop a web-based customer self-care system application for mobile phone companies.
- Designed and coded a C++ RAD framework to facilitate Windows NT development.
- Built a multiplatform database manipulation library (Interbase, SQL Server, and Oracle were all supported).
- Created a software internationalization tool suite using C++ and XML back-end storage.
- Developed a public-key data encryption library for front-facing Linux system tools.
- Created replacement modules for a computer associates' Clipper system calls to make it Windows NT enabled.
- Designed a mission-critical online transaction processing databases on Oracle, Interbase, and MySQL.
Technologies: Cryptography, Linux, Java, InterBase, Oracle, C#, ASP.NET Web Forms, C++, MySQL, Localization, SQL, SOAP, SOLID Principles, MVC Design, Solution Architecture, JUnit, dBASE, Full-stack Development, Microsoft Access, Back-end, Microsoft SQL Server, C, SQL Server 2012, Win32, ADO.NET, FTP, FTP Servers, Win32 API, Inno Setup, Windows Server, ASCII, System Service & Hardware Control, Point of Sale, Full-stack, Front-end, Software Design, Web Scraping, Windows Forms (WinForms), C#.NET WinForms, Software Engineering, Technical Writing, Stock Trading, Event-driven Architecture, JavaScript, Back-end Development, Standard Template Library (STL), Neural Networks, Service, SQL Server Reporting Services (SSRS), Concurrency, Object-oriented Programming (OOP), Hibernate, Geometry, Code Review, Performance Optimization, Database Optimization, Multi-tenant Architecture, Troubleshooting, Database Design, Role-based Access Control (RBAC), Mortgages, Enterprise Architecture, eCommerce, System Design, ERP Systems, System Integration, Performance Improvement, Test-driven Development (TDD), Team Leadership & Supervision, Startups
Experience
Food Delivery Application Ecosystem
I architected and coded the entire system (mobile application and back-end microservices) for a food delivery and courier-tracking application.
WORK COMPLETED
• Wrote around 12 microservices using Node.js and C#: order fulfillment, vendor communications, and delivery routing.
• Built two relational databases (MySQL) and a NoSQL one (DynamoDB).
• Developed four mobile applications (iOS and Android for consumers and Android for couriers and vendors).
• Implemented the interactions with 3rd-party APIs (REST and proprietary) exchanging JSON and XML payloads.
WORK COMPLETED
• Wrote around 12 microservices using Node.js and C#: order fulfillment, vendor communications, and delivery routing.
• Built two relational databases (MySQL) and a NoSQL one (DynamoDB).
• Developed four mobile applications (iOS and Android for consumers and Android for couriers and vendors).
• Implemented the interactions with 3rd-party APIs (REST and proprietary) exchanging JSON and XML payloads.
Node.js Communications Platform
I designed and built a communications platform using Node.js that enables clients to contact their customers by email, browser push notifications, SMS, or voice calls.
The project was hosted in the AWS cloud, and Twilio was used to make voice calls and send SMS.
An exciting aspect of the project is the innovative use of SNS, SQS, and Lambda to achieve massive scalability while keeping costs under control.
The project was hosted in the AWS cloud, and Twilio was used to make voice calls and send SMS.
An exciting aspect of the project is the innovative use of SNS, SQS, and Lambda to achieve massive scalability while keeping costs under control.
Automated Enterprise Bus Service for Distributed Systems
I designed and built a system that enables different service owners to provide a formal description of their service (name, list of endpoints and operations, and input parameter and output object schemas) using standard description grammars (WSDL, WADL, and more), authentication schemes, and providers.
In return, the system ensures the discovery and interoperation (with the appropriate sequencing of operations and marshaling of input/output parameters) across protocols and service styles without writing a single line of code.
In return, the system ensures the discovery and interoperation (with the appropriate sequencing of operations and marshaling of input/output parameters) across protocols and service styles without writing a single line of code.
Serverless SMS Platform
I designed and built an SMS-based platform on .NET. It enables a client to receive and process text messages on short codes and react to them by performing database queries and responding with text messages localized to the specific region of the original sender.
The entire project was hosted in the AWS Cloud and made extensive use of AWS Lambda, S3, SNS, DynamoDB, Pinpoint, RDS (PostgreSQL), and CloudWatch.
The entire project was hosted in the AWS Cloud and made extensive use of AWS Lambda, S3, SNS, DynamoDB, Pinpoint, RDS (PostgreSQL), and CloudWatch.
Neural Network-driven Customer Recommendation Engine
Using TensorFlow, I wrote code that runs a model to examine past offerings, contrasts them with customer engagements (purchases, cancellations, and more), and periods to determine the optimal (leading to the most purchases and least cancellations) product offering on a future date. The resulting code produces an accurate result for dates up to two weeks in the future using a few months of training data.
Customer Communications Bot | SMS and Facebook Messenger
I designed and built a bot to handle customer requests and perform back-end server actions (e.g., retrieving and moving user profiles and videos) in a Healthcare support application.
Technologies: Amazon Lex, Twilio API, Node.js, Facebook SDK, and Go.
Technologies: Amazon Lex, Twilio API, Node.js, Facebook SDK, and Go.
Network Performance Monitor
Utilizing a C++-written native layer that intercepts socket-level events, I designed and built a cross-platform component. The component computes statistics on network performance (errors, port utilization, data rates, and more), buffers them, and correlates them to method calls within the code of a currently running a .NET or Java application. It then sends the augmented-stack traces to a remote collection server using an optimized binary transfer protocol.
Mobile Staff and Job-tracking Application
This is an enterprise mobile phone application that was distributed to thousands of staff and customers. The aim was to allow the client-company employees to receive assignments on the road, report on their activities, and keep the customers informed about the state of the jobs they are paying for.
I designed the architecture and led the development team behind this application.
Customers are kept up-to-date via an SMS sent from back-end servers via the Twilio API. Concurrently, the staff receives notifications through their devices on the Amazon Simple Notification Service (plugged into Google Cloud Messaging and Amazon SQS for fanning out to the appropriate collaborating staff).
I designed the architecture and led the development team behind this application.
Customers are kept up-to-date via an SMS sent from back-end servers via the Twilio API. Concurrently, the staff receives notifications through their devices on the Amazon Simple Notification Service (plugged into Google Cloud Messaging and Amazon SQS for fanning out to the appropriate collaborating staff).
Generic GA Tuner
This genetic algorithm tuning object can be used generically through a simulation object representing the environment in which individual strategies—the chromosomes—must perform. The first application was for financial options computations.
Billing Management Software with Assistive Technology
I developed billing/time management software for employees of a legal firm, some of whom may need accessibility features.
The application was written in C++ (using C++ Builder) for Windows XP and used the Microsoft Active Accessibility API to enable specific features:
• Support the high contrast mode.
• Make all of the functionality of the application keyboard (not only mouse) accessible.
• Provide an on-screen keyboard.
• Enable scaling of all screens, controls, and fonts in the UI appropriately with user preferences.
The application was written in C++ (using C++ Builder) for Windows XP and used the Microsoft Active Accessibility API to enable specific features:
• Support the high contrast mode.
• Make all of the functionality of the application keyboard (not only mouse) accessible.
• Provide an on-screen keyboard.
• Enable scaling of all screens, controls, and fonts in the UI appropriately with user preferences.
Payment Service-Provider Fulfilment API
This project revolves around a Node.js API service that communicates with banking institutions using REST and HTTP to implement the Open Banking 3.1.4 specification. I stored information in a PostgreSQL database.
The entire system consists of two component services. The service I was in charge of exposed its contract via Swagger and optimally used dependency injections to facilitate unit testing (mocking its storage, authentication service, 3rd-party APIs, and more). Deployment was done through Docker images.
The entire system consists of two component services. The service I was in charge of exposed its contract via Swagger and optimally used dependency injections to facilitate unit testing (mocking its storage, authentication service, 3rd-party APIs, and more). Deployment was done through Docker images.
Home Safety IoT Project
TASKS ACCOMPLISHED
• Composed the appliance code: reads sensors and periodically reports on their values.
• Built the back-end API using AWS Lambda with Aurora storage.
• Implemented data-processing functions, emitting safety diagnostics based on the data read by the appliance.
This IoT project deployed over 600,000 appliances with gas and weight sensors to multiple homes, reporting to a back-end server to detect various safety conditions.
Mobile applications (iOS and Android) and web applications interact with each appliance's data to view the diagnostics and predictions attached to it.
• Composed the appliance code: reads sensors and periodically reports on their values.
• Built the back-end API using AWS Lambda with Aurora storage.
• Implemented data-processing functions, emitting safety diagnostics based on the data read by the appliance.
This IoT project deployed over 600,000 appliances with gas and weight sensors to multiple homes, reporting to a back-end server to detect various safety conditions.
Mobile applications (iOS and Android) and web applications interact with each appliance's data to view the diagnostics and predictions attached to it.
Enterprise Content-Management Solution
I was one of the back-end developers for a .NET Core-based content-management system that created and maintained data pipelines between eCommerce websites and the cloud storage of product information and metadata.
Content Management System
I worked as a developer on a Windows desktop-based .NET Content Management System for a construction company, focusing on bug fixes and feature enhancements. The application was built using C#, with deployment managed through Amazon EC2.
ETL Data
I collaborated with cross-functional Agile teams and product teams to understand requirements and contribute to developing solutions. I conducted fixes and enhancements within the reporting application and related integrations, added new features, identified opportunities for process improvement, and contributed to implementing solutions.
Pharmacy-to-consumer Software Solution
I acted as an architect and developer to understand the original AWS deployment and ensured the infrastructure, instances, and database were configured correctly (Amazon EC2, RDS). I developed new API features (in C#) to be deployed using AWS Lambda.
Trading System Overhaul
• Reconnected and modified the application to effectively work with Interactive Brokers' updated API.
• Addressed and resolved issues stemming from the API changes, such as date format adjustments.
• Collaborated with the client to identify and implement additional improvements and enhancements to the trading platform.
• Addressed and resolved issues stemming from the API changes, such as date format adjustments.
• Collaborated with the client to identify and implement additional improvements and enhancements to the trading platform.
Solution Architecture for a decentralized Marketplace system
Analyze the existing Architecture and help improve it, make it leaner, and prepare it to scale.
Acted as an advisor/consultant that helped help the client to improve build cycles, make the architecture more robust for the next phases of the project
Acted as an advisor/consultant that helped help the client to improve build cycles, make the architecture more robust for the next phases of the project
Implementing Connections to Peripheral Devices from .NET
• Implement other connections with printers, customer displays, POS, and other devices, starting with printers. We aim for a solution that will adapt well to other types of printers (i.e., the sizer will be sent to the printer, not figured out by the printer).
• Refactor the system design.
• Refactor the system design.
Toptal Lightning Start Architecture
Lightning start roles and responsibilities:
1. Requirements gathering.
2. Scope definition.
3. Architecture proposals.
4. Technology recommendations.
5. Integration definition with spelling/grammar checkers, plagiarism detection, and bibliography formatting.
1. Requirements gathering.
2. Scope definition.
3. Architecture proposals.
4. Technology recommendations.
5. Integration definition with spelling/grammar checkers, plagiarism detection, and bibliography formatting.
Financial Advisor Web Application Tooling
• Owning the full software development lifecycle, including design, development, testing, and support.
• Understanding user requirements, proposing solutions, conducting analysis, and performing design prior to development.
• Working on a highly collaborative, mission-driven, Agile product team.
• Integrating applications using API-led and cloud-first architectural design patterns with in-house custom applications and third-party SaaS providers.
• Leading vendor contract developers on various integrations, providing appropriate guidance and oversight that ensures alignment with enterprise architecture.
• Helping develop a new engineering team.
• Conducting code reviews and design sessions.
• Identifying and implementing solutions independently and in conjunction with a development team.
• Consulting with designers, developers, and architects to evaluate and develop product specifications.
• Tracking project status and communicating progress effectively to internal management and external stakeholders.
• Integrating with web testing services for unit, functional, and scalability testing.
• Understanding user requirements, proposing solutions, conducting analysis, and performing design prior to development.
• Working on a highly collaborative, mission-driven, Agile product team.
• Integrating applications using API-led and cloud-first architectural design patterns with in-house custom applications and third-party SaaS providers.
• Leading vendor contract developers on various integrations, providing appropriate guidance and oversight that ensures alignment with enterprise architecture.
• Helping develop a new engineering team.
• Conducting code reviews and design sessions.
• Identifying and implementing solutions independently and in conjunction with a development team.
• Consulting with designers, developers, and architects to evaluate and develop product specifications.
• Tracking project status and communicating progress effectively to internal management and external stakeholders.
• Integrating with web testing services for unit, functional, and scalability testing.
Azure Application Development
• Design and develop application back-end using C# and .NET Core.
• Build reusable back-end components, REST APIs, Web services, and microservices.
• Build data access layers.
• Write automated unit tests.
• Understand and translate business requirements into technical requirements/specifications.
• Be a part of a larger development team and interface with product, project, DevOps, and QA teams.
• Use Agile and Kanban methodologies for SDLC.
• Maintain work backlog through Jira.
• Collaborate with team members across multiple geographic locations as well as time zones.
• Build reusable back-end components, REST APIs, Web services, and microservices.
• Build data access layers.
• Write automated unit tests.
• Understand and translate business requirements into technical requirements/specifications.
• Be a part of a larger development team and interface with product, project, DevOps, and QA teams.
• Use Agile and Kanban methodologies for SDLC.
• Maintain work backlog through Jira.
• Collaborate with team members across multiple geographic locations as well as time zones.
Cloud Architect for a Worldwide Fleet of IoT Devices
I was a full-time IoT architect who evaluated an existing architecture, developed recommendations, and supported a team of developers. This IoT application had to support one million devices connected to the cloud and power six different applications (two Web, two Android, and two iOS).
API Integration for Hospitality Web Services
I used a hotel booking API and built endpoints that Trivago's Express Booking feature can use. This meant essentially building out AWS Lambda-based endpoints that Trivago could use. To do so, I had to take input according to Trivago documentation's specification, transforming that into output that the hotel booking API expects, and vice versa for all endpoints.
API Integration with Software Security Tools
I built a new microservice (hosted as a series of AWS Lambda functions) using JavaScript (TypeScript) to integrate a managed detection and response platform with selected anti-virus companies via their exposed APIs.
YouTube Audience Retention Optimizer
A Cloud-hosted system comprising mobile applications and a website aimed at analyzing YouTube videos and providing its users with instructions and pointers to improve viewer retention. By analyzing the Viewer Retention diagram provided by the YouTube API and comparing its evolution with the video's captions, this system identifies the video's strengths and weaknesses and shows them to the user.
Affiliate Link Checker
Social media creators earn revenue with merchants by associating their content with affiliate links. When those links contain errors or link to the wrong product, their revenue drops. I designed and built a cloud-hosted, AI-based tool to verify and flag invalid links at scale.
Education
2007 - 2008
Master's Degree in Software Engineering
University of Liverpool - Liverpool, United Kingdom
1993 - 1996
Bachelor's Degree in Mathematics
Paris Diderot University - Paris, France
Certifications
OCTOBER 2004 - DECEMBER 2008
Most Valuable Professional (Award)
Microsoft
AUGUST 2000 - PRESENT
Oracle 6 DBA
Oracle
Skills
Libraries/APIs
API Development, LINQ, REST APIs, Twilio API, Node.js, Web API, Win32 API, Entity Framework, Windows Forms (WinForms), TensorFlow, Standard Template Library (STL), Facebook Messenger API, React, Stripe, Stripe API, OpenAI API, Telegram Messenger API, WhatsApp API, jQuery, YouTube API
Tools
IntelliJ IDEA, Amazon Simple Notification Service (SNS), Amazon Simple Queue Service (SQS), Visual Studio .NET, Amazon Lex, Amazon CloudWatch, GitHub, C#.NET WinForms, Jira, Amazon Cognito, Visual Studio, Git, GitLab, Auth0, AWS Batch, Terraform, Microsoft Access, AWS Fargate, Dapper, Bitbucket, Claude, GoLand, Chef, TFS, Mathematica, Salesforce Marketing Cloud, Postman, Azure Logic Apps, Claude Code, AWS CloudFormation
Languages
SQL, C#.NET, TypeScript, JavaScript, Java, C#, HTML, XML, dBASE, C, C++, CSS3, Go, GraphQL, Python, Java 11, Bash Script, Snowflake, Python 3, HTML5, PHP, CSS
Frameworks
ASP.NET Web Forms, ASP.NET, JUnit, ASP.NET MVC, .NET, NancyFx, .NET Core, .NET 4, ADO.NET, .NET 6, Serverless Framework, Google Guice, Windows Presentation Foundation (WPF), Hadoop, ASP.NET Core, Mockito, Blazor, Entity Framework Core, Razor Pages, OAuth 2, Hibernate, NestJS, LangGraph, Spring, Angular, Express.js, Ruby on Rails (RoR), Django, Next.js
Paradigms
API Architecture, Concurrent Programming, Lambda Architecture, Service-oriented Architecture (SOA), Unit Testing, REST, Microservices, MapReduce, MVC Design, Serverless Architecture, Model View Controller (MVC), Continuous Integration (CI), DevOps, Scalable Application, Agile, Continuous Delivery (CD), API/Services Architecture, Event-driven Architecture, ETL, Object-oriented Programming (OOP), Database Design, Role-based Access Control (RBAC), Test-driven Development (TDD), Agile Software Development, Functional Programming, Code Refactoring, Requirements Analysis, Microservices Architecture
Platforms
AWS Lambda, Amazon EC2, Amazon Web Services (AWS), Windows, AWS IoT, Twilio, Win32, Windows Server, Windows Desktop, Oracle, Linux, Docker, Azure, Kubernetes, Windows Server 2016, MetaTrader, MetaTrader 5, Android, Google Cloud Platform (GCP), Mobile, AWS IoT Core, Ethereum, Vercel
Storage
Databases, MySQL, NoSQL, Amazon S3 (AWS S3), Amazon DynamoDB, PostgreSQL, JSON, Relational Databases, SQL Server 2012, InterBase, SQL Server Reporting Services (SSRS), SQL Server 2016, Microsoft SQL Server, MongoDB, Redis, SQL Server 2017, Azure SQL, Data Pipelines, Elasticsearch, Oracle RDBMS, Azure Blobs, SQL Server Integration Services (SSIS), Google Cloud, Amazon Aurora, Redshift, Datadog
Industry Expertise
Cybersecurity
Other
Internet of Things (IoT), Architecture, Software Architecture, Cloud, Concurrency, Lambda Functions, Cloud Architecture, Service, Algorithms, AWS Cloud Architecture, Monitoring, Distributed Systems, Data Structures, APIs, Solution Architecture, Software Development Lifecycle (SDLC), Amazon API Gateway, Localization, SOLID Principles, Serverless, Amazon RDS, Third-party Integration, CI/CD Pipelines, Integration Testing, Back-end, API Integration, Integration, RESTful Services, Webhooks, ASCII, DLL, Point of Sale, Scalable Architecture, Security Design, Software Design, Leadership, Scalability, CTO, Technical Architecture, Technical Leadership, RESTful Microservices, Software Engineering, Online Payments, API Documentation, Technical Writing, Stock Trading, SaaS Design, API Design, Amazon EventBridge, Back-end Development, Trading, System Architecture, Software Requirements Specifications (SRS), Cloud Infrastructure, Code Review, Performance Optimization, Multi-tenant Architecture, Troubleshooting, OutSystems, Event-driven Systems, API Gateways, Forex, RESTFul APIs, Fractional CTO, Enterprise Architecture, System Design, System Integration, Performance Improvement, Microsoft Azure, Data Modeling, French, Team Leadership & Supervision, Startups, Cryptography, Windows Communication Foundation (WCF), SMPP, Accessibility, USB, Mathematics, SOAP, Full-stack Development, Software Consulting, FTP, FTP Servers, Performance, Data Processing, System Service & Hardware Control, Full-stack, Scheduling, Artificial Intelligence (AI), WCF Web Services, Payment APIs, OAuth, Security, Multitenancy, Content Management Systems (CMS), Neural Networks, Networking, Microsoft Data Transformation Services (now SSIS), Elastic Load Balancers, Geometry, ACM Problem Solving, AI Architecture, Database Optimization, Fintech, Financial APIs, AI-generated Code, Infrastructure, Amazon Bedrock AgentCore, OpenAI, OpenAI APIs, Large Language Models (LLMs), Generative Artificial Intelligence (GenAI), AI Agents, eCommerce, eCommerce CMS, LangChain, ERP Systems, AI-assisted Development, Time Series Analysis, Data Analytics, Financial Services, Payments, WhatsApp, Search, Identity & Access Management (IAM), Multi-tenant SaaS, Technical Documentation, Security Architecture, Windows Services, Profiling, ClickOnce, BizTalk, Microsoft Commerce Server, Accessible Design, Inno Setup, WebSockets, Front-end, Machine Learning, Data Privacy, Web Scraping, SaaS, OpenID Connect (OIDC), Hardware Drivers, Packet Communication, Printer Drivers, Scope Management, Amazon Kinesis, IoT Protocols, Middleware, Mortgages
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