Paul R.

I build and modernize production software systems where reliability, scalability, security, and maintainability matter. I am a Software Engineer with experience working on enterprise and cloud-based systems, including my current software engineering work at Microsoft. My core strength is backend engineering and system design using C#, .NET, Azure, SQL/PostgreSQL, APIs, distributed systems, cloud infrastructure, and modern software architecture. I am particularly effective when a project involves more than simply writing code. I can work through the architecture, application logic, database, integrations, cloud infrastructure, deployment, security, observability, and production troubleshooting needed to build a system that works reliably end to end. I can help with: • Backend development with C#, .NET and ASP.NET Core • REST API and service architecture • Azure application architecture and cloud deployments • Legacy application modernization and .NET migrations • Distributed systems and microservice architecture • SQL Server and PostgreSQL application development • Performance analysis and production troubleshooting • Authentication, authorization and secure API design • CI/CD, Docker and production deployment workflows • Third-party and enterprise system integrations • AI/LLM integration into production software systems • Technical architecture reviews and modernization planning My background also spans financial systems, data-intensive applications, networking, infrastructure and control systems engineering. That breadth is useful on projects where problems cross application, database, infrastructure and integration boundaries. I am comfortable joining an existing engineering team, taking ownership of a difficult subsystem, modernizing a legacy application, designing a new backend architecture, or independently driving a technically complex implementation from problem definition through production. For existing systems, I normally begin by understanding the architecture, constraints and root cause before recommending changes. For new systems, I focus on making sound architectural decisions early so that scalability, reliability and maintainability do not become expensive problems later. If you have a technically challenging backend, cloud, modernization or AI-enabled software project, send me the architecture, requirements or current problem and I can help determine the best way forward.