Open to opportunities

John Martin

@johnmartin1

Message

I build scalable .NET, React, and AI-agent platforms with measurable performance improvements.

United States

Message

What I'm looking for

I'm looking to build secure, scalable distributed systems and AI-agent workflows while leading architecture, improving reliability, and mentoring engineers.

At Pace Harmon, I architect backend services and AI-agent workflows using C#, .NET 8, React, TypeScript, FastAPI, Kafka, and PostgreSQL. I reduced API response time by 35%, product interaction time by 40%, and deployment duration by 20%.

I've delivered production applications across Pace Harmon, Access Global Group, VMware, and EarlyShares, building secure APIs, event-driven services, cloud deployments, and responsive web experiences. My work spans AWS, Azure, GCP, Docker, CI/CD, SQL Server, PostgreSQL, OAuth2/OIDC, and automated testing.

I lead architecture and code reviews, investigate production issues, and mentor engineers on maintainable design, testing, debugging, and reliable delivery.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Pace Harmon

Jul 2023 - Present (3 years 1 month)

Architected backend services using C#, .NET 8, and ASP.NET Core, reducing API response time by 35%. Led React and TypeScript workflows, integrated LLMs, and owned database schema evolution.

C#.NET 8+ASP.NET Core React TypeScript fastAPI PostgreSQL SQL Server Kafka AWS Azure GCP GitHub Actions OIDC JWT RBAC Claude Code

Senior Software Engineer

Access Global Group

Sep 2020 - May 2023 (2 years 8 months)

Led backend development with C#, .NET Core, and REST APIs, improving delivery cycle time by 24%. Built React interfaces, integrated LLMs, and optimized database performance.

C#.NET Core ASP.NET Core REST APIs React TypeScript fastAPI SQL Server PostgreSQL RabbitMQ AWS Azure GCP xUnit NUnit Docker Jenkins

Software Engineer

VMware

Jul 2019 - Aug 2020 (1 year 1 month)

Built and optimized React frontend applications, reducing page-load time by 35%. Developed C#/.NET Core backend services and implemented OAuth2 and JWT authentication.

React C#.NET Core REST APIs AWS Azure Docker JWT Jest Cypress

Software Developer

EarlyShares

Dec 2016 - May 2019 (2 years 5 months)

Built responsive frontend functionality using JavaScript, HTML5, and CSS. Contributed to C# and ASP.NET backend integrations and improved request handling.

JavaScript HTML5 CSS C#ASP.NET REST APIs