Timothy is available for hire
Hire TimothyTimothy Downs
Verified Expert in Engineering
Solutions Architect and Developer
Kihei, HI, United States
Toptal member since November 29, 2023
Bio
Timothy is a seasoned software developer with 18+ years of industry knowledge. His expertise spans various technologies, including AWS, Azure, C#, Python, and JavaScript, and he specializes in CI/CD solutions, data aggregation, and data visualization. Timothy's background in finance, coupled with his strong tech leadership and team mentorship skills, uniquely positions him for roles that require both technical expertise and strategic insight.
Portfolio
Self-employed
C#, Python, Node.js, Angular, React, SQL, DYNAMO, Jenkins, GitLab CI/CD...
Ardent Management Consulting
Python, JavaScript, Angular, ArcGIS, AWS IoT, Azure, ASP.NET Web API...
Ardent Management Consulting
C#, Python, JavaScript, Angular, ASP.NET Web API, SQL Server 2016...
Experience
Availability
Part-time
Preferred Environment
Visual Studio, Visual Studio Code (VS Code)
The most amazing...
...solution I've created is a data aggregation system that handles 200 million records per day from more than 30 sources.
Work Experience
Principal Developer
2021 - PRESENT
Self-employed
- Created and maintained AWS and Azure environments for SaaS businesses using C#, Node.js, Python, Angular, React, Microsoft SQL Server, and DynamoDB.
- Developed and managed custom web dashboards, REST and streaming-web APIs, reports, and notifications.
- Built and upheld processes for collecting, aggregating, analyzing, and visualizing data.
- Created fully automated CI/CD solutions with Jenkins, GitLab, Ansible, and Kubernetes.
Technologies: C#, Python, Node.js, Angular, React, SQL, DYNAMO, Jenkins, GitLab CI/CD, Ansible, ASP.NET Web API, Azure, CI/CD Pipelines, Tradestation, Visual Studio, Visual Studio Code (VS Code), Finance, Economics, JavaScript, AWS IAM, SQL Server 2016, Windows Communication Foundation (WCF), gRPC, Web MVC, SQL Server DBA, Crystal Reports, Windows, Linux, C#.NET, C++, Amazon Elastic Container Service (ECS), Microsoft SQL Server, Architecture, Back-end, Minimum Viable Product (MVP), PostgreSQL, Social Networks, REST APIs, Stable Diffusion, Amazon Web Services (AWS), APIs, Git, HTML, HTML5, CSS, .NET, Windows Forms (WinForms), Windows API, TypeScript, Web Scraping, Bots, Data Scraping, Full-stack, AWS Lambda, Microservices, Docker, Serverless Architecture, Containers, REST, DevOps, Kubernetes, OAuth, Interactive Brokers API, Web Development, Desktop App Development, API Development, .NET Core, Scraping, ASP.NET, Cloud, Serverless, GitHub, Amazon Aurora, Amazon CloudWatch, UI Components, Integration, jQuery, Auth0, JSON, SQL Server 2014, API Integration, Agile, Database Architecture, Technical Leadership, SQL Server Integration Services (SSIS), ChatGPT, JSON Web Tokens (JWT), Artificial Intelligence (AI), Leadership, Software Architecture, ASP.NET Core, Automation, Back-end Development, Middleware, Trading, Bash, Entity Framework, Full-stack Development, Web Hosting, PWA, Data Engineering, ETL, Data Analysis, Solution Architecture, Internet of Things (IoT), IoT Protocols, MQTT, Algorithmic Trading, Algorithms, Web Components, Blazor, Automated Trading Software, Amazon S3 (AWS S3), Data Architecture, Azure SQL
Solutions Architect
2019 - 2021
Ardent Management Consulting
- Designed, planned, and executed migrations from a legacy server to an AWS cloud architecture.
- Used Identity Server to create multi-tenant identity management solutions that enabled single sign-on across multiple applications.
- Performed comprehensive assessments and evaluations of clients' current systems and infrastructure and evaluated emerging technologies and trends to incorporate into solution designs.
- Mentored junior developers on best practices and internal development standards.
Technologies: Python, JavaScript, Angular, ArcGIS, AWS IoT, Azure, ASP.NET Web API, CI/CD Pipelines, Jenkins, IdentityServer 3, AWS IAM, C#, SQL, Node.js, Visual Studio, Visual Studio Code (VS Code), React, Ansible, SQL Server 2016, Windows Communication Foundation (WCF), gRPC, Web MVC, SQL Server DBA, Crystal Reports, Windows, Linux, C#.NET, Amazon Elastic Container Service (ECS), Microsoft SQL Server, Architecture, Back-end, Minimum Viable Product (MVP), PostgreSQL, REST APIs, Amazon Web Services (AWS), Java, APIs, Git, HTML, HTML5, CSS, .NET, Windows Forms (WinForms), Windows API, TypeScript, Web Scraping, Bots, Data Scraping, Full-stack, AWS Lambda, Microservices, Docker, Serverless Architecture, Containers, REST, DevOps, Kubernetes, OAuth, Web Development, Desktop App Development, API Development, .NET Core, ASP.NET, Cloud, Serverless, GitHub, Jira, Amazon Aurora, Amazon CloudWatch, AWS CodeCommit, UI Components, Integration, jQuery, WCF Web Services, Auth0, JSON, SQL Server 2014, API Integration, Agile, Database Architecture, GIS, Technical Leadership, Telerik, SQL Server Integration Services (SSIS), JSON Web Tokens (JWT), Artificial Intelligence (AI), Leadership, Software Architecture, ASP.NET Core, FFmpeg, Automation, Back-end Development, Middleware, Trading, Bash, Entity Framework, Full-stack Development, Web Hosting, PWA, Data Engineering, ETL, Data Analysis, Solution Architecture, Internet of Things (IoT), IoT Protocols, MQTT, Algorithms, D3.js, Web Components, Blazor, Amazon S3 (AWS S3), Data Architecture, Redshift, Azure SQL
Lead Software Engineer
2013 - 2019
Ardent Management Consulting
- Liaised with business stakeholders to define and gather project requirements.
- Collaborated with product managers to define project priorities based on the requirements within an Agile environment.
- Implemented automated build, test, and deployment processes using CI/CD pipelines and installation packages.
Technologies: C#, Python, JavaScript, Angular, ASP.NET Web API, SQL Server 2016, Windows Communication Foundation (WCF), gRPC, SignalR, ArcGIS, Node.js, SQL, Visual Studio, Visual Studio Code (VS Code), React, Jenkins, Ansible, AWS IoT, Azure, CI/CD Pipelines, IdentityServer 3, AWS IAM, Web MVC, SQL Server DBA, TFS, Crystal Reports, Windows, Linux, C#.NET, C++, Amazon Elastic Container Service (ECS), Microsoft SQL Server, Back-end, PostgreSQL, REST APIs, Mobile Development, Amazon Web Services (AWS), Java, APIs, Git, HTML, HTML5, CSS, .NET, Windows Forms (WinForms), Windows API, TypeScript, Web Scraping, Bots, Data Scraping, Full-stack, AWS Lambda, Microservices, Docker, Serverless Architecture, Containers, REST, DevOps, OAuth, Web Development, Desktop App Development, API Development, .NET Core, Scraping, ASP.NET, Cloud, Serverless, GitHub, Jira, Amazon Aurora, Amazon CloudWatch, AWS CodeCommit, UI Components, Integration, jQuery, Architecture, WCF Web Services, Auth0, JSON, SQL Server 2014, API Integration, Agile, Database Architecture, GIS, Technical Leadership, Telerik, SQL Server Integration Services (SSIS), JSON Web Tokens (JWT), Leadership, Software Architecture, ASP.NET Core, FFmpeg, Automation, Back-end Development, Middleware, Bash, Entity Framework, Full-stack Development, Web Hosting, PWA, Data Engineering, ETL, Data Analysis, Internet of Things (IoT), IoT Protocols, MQTT, Algorithms, D3.js, Web Components, Blazor, Amazon S3 (AWS S3), Data Architecture, Redshift, Azure SQL
Development Manager
2012 - 2014
General Information Systems
- Played a crucial role in designing and developing the Pangea hiring management system utilizing C#, ASP.NET, model-view-controller (MVC), Windows Communication Foundation (WCF), and Microsoft SQL Server.
- Led and managed the development team and liaised with business stakeholders to understand and implement requested features within an Agile environment.
- Designed and developed a system to create dynamic web forms, adhering to 508 compliance guidelines.
- Created automated performance tests to identify bottlenecks and refactored code to improve the system's performance and stability.
Technologies: Web MVC, Windows Communication Foundation (WCF), SQL Server DBA, Subversion (SVN), C#, Node.js, SQL, Visual Studio, JavaScript, CI/CD Pipelines, TFS, Crystal Reports, Windows, C#.NET, Amazon Elastic Container Service (ECS), Microsoft SQL Server, Back-end, REST APIs, Mobile Development, APIs, HTML, HTML5, CSS, .NET, Windows Forms (WinForms), Windows API, Bots, Data Scraping, Full-stack, REST, DevOps, Web Development, Desktop App Development, API Development, ASP.NET, Integration, jQuery, Architecture, WCF Web Services, JSON, API Integration, Agile, Database Architecture, Technical Leadership, SQL Server Integration Services (SSIS), JSON Web Tokens (JWT), Leadership, Software Architecture, Automation, Back-end Development, Middleware, Entity Framework, Full-stack Development, Web Hosting, PWA, Data Engineering, ETL, Data Analysis, Algorithms, Data Architecture
Senior Software Developer
2010 - 2012
General Information Systems
- Worked with a team of developers to build a proprietary management system for human resources.
- Designed the database structure, code architecture, and coding standards to provide a solid foundation for development.
- Leveraged Windows Communication Foundation (WCF) web services, ASP.NET MVC, and jQuery to provide a robust web solution.
- Used SQL Server Reporting Services (SSRS) to create dynamic reporting capabilities for different clients.
- Developed automated solutions for load, unit, and UI testing with the ultimate Visual Studio testing suite.
Technologies: C#, JavaScript, Windows Communication Foundation (WCF), Subversion (SVN), TFS, Crystal Reports, Node.js, SQL, Visual Studio, CI/CD Pipelines, Web MVC, SQL Server DBA, Windows, C#.NET, C++, Amazon Elastic Container Service (ECS), Microsoft SQL Server, Back-end, REST APIs, Mobile Development, APIs, HTML, HTML5, CSS, .NET, Windows Forms (WinForms), Windows API, Bots, Data Scraping, Full-stack, REST, DevOps, Web Development, Desktop App Development, API Development, ASP.NET, Integration, jQuery, Architecture, WCF Web Services, JSON, API Integration, Agile, Database Architecture, Technical Leadership, SQL Server Integration Services (SSIS), JSON Web Tokens (JWT), Software Architecture, Automation, Back-end Development, Middleware, Full-stack Development, Web Hosting, PWA, Data Engineering, ETL, Data Analysis, Algorithms, Data Architecture
Experience
Data Aggregation Service
A data aggregation service crafted to meet the intricate needs of traders and financial analysts. It integrated flawlessly with top-tier trading platforms and offered users access to live and historical data, transforming how they engaged in active trade analysis and strategy backtesting.
What set this service apart was its versatility in data utilization and precision in backtesting. It supported custom data sources and combined various data types—time-based, tick-based, and range-based chart data—all within a single, seamless data stream. This fusion of data types provided a much more granular and accurate backtesting experience, enhancing the precision of simulated trading outcomes.
From the initial concept to the final implementation, I worked with clients to architect a microservice solution that granted seamless integration with diverse trading platforms. My expertise in gRPC and REST APIs was crucial in unleashing the full potential of trading analytics. The launch of this service marked a significant leap in trading efficiency and accuracy for my clients, providing them with an edge that sets them up to be consistently profitable regardless of market conditions.
What set this service apart was its versatility in data utilization and precision in backtesting. It supported custom data sources and combined various data types—time-based, tick-based, and range-based chart data—all within a single, seamless data stream. This fusion of data types provided a much more granular and accurate backtesting experience, enhancing the precision of simulated trading outcomes.
From the initial concept to the final implementation, I worked with clients to architect a microservice solution that granted seamless integration with diverse trading platforms. My expertise in gRPC and REST APIs was crucial in unleashing the full potential of trading analytics. The launch of this service marked a significant leap in trading efficiency and accuracy for my clients, providing them with an edge that sets them up to be consistently profitable regardless of market conditions.
Education
2001 - 2004
Bachelor's Degree in Finance
University of South Carolina - Columbia, SC, USA
Skills
Libraries/APIs
React, REST APIs, API Development, jQuery, Node.js, SignalR, Windows Forms (WinForms), Windows API, Interactive Brokers API, FFmpeg, Entity Framework, D3.js, ArcGIS
Tools
TFS, Crystal Reports, Git, GitHub, Jira, Auth0, ChatGPT, Visual Studio, Jenkins, Subversion (SVN), Amazon CloudWatch, AWS CodeCommit, GIS, MQTT, GitLab CI/CD, Ansible, AWS IAM, Amazon Elastic Container Service (ECS)
Languages
C#, Python, SQL, JavaScript, C#.NET, Bash, HTML, HTML5, TypeScript, DYNAMO, C++, Java, CSS
Frameworks
.NET, .NET Core, ASP.NET, JSON Web Tokens (JWT), ASP.NET Core, Angular, ASP.NET Web API, IdentityServer 3, gRPC, Blazor
Paradigms
Microservices, REST, DevOps, Desktop App Development, Agile, Automation, ETL, Serverless Architecture, Mobile Development
Platforms
Windows, Visual Studio Code (VS Code), Tradestation, Linux, Amazon Web Services (AWS), AWS Lambda, Docker, Telerik, AWS IoT, Azure, Kubernetes
Storage
Microsoft SQL Server, JSON, SQL Server 2014, Database Architecture, SQL Server Integration Services (SSIS), Amazon S3 (AWS S3), SQL Server 2016, SQL Server DBA, PostgreSQL, Amazon Aurora, Redshift, Azure SQL
Other
Architecture, Back-end, APIs, Web Development, Scraping, Cloud, Serverless, Integration, WCF Web Services, API Integration, Back-end Development, Trading, Full-stack Development, Web Hosting, PWA, Data Engineering, Data Analysis, Algorithmic Trading, Algorithms, Web Components, Automated Trading Software, Windows Communication Foundation (WCF), Web MVC, Minimum Viable Product (MVP), Web Scraping, Bots, Data Scraping, Full-stack, Containers, OAuth, UI Components, Technical Leadership, Artificial Intelligence (AI), Leadership, Software Architecture, Middleware, Solution Architecture, Internet of Things (IoT), IoT Protocols, Data Architecture, Business Administration, Finance, Economics, CI/CD Pipelines, Social Networks, Stable Diffusion
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