Available for opportunities
Marvin D. Verdera
Senior Software Engineer
Hi, I'm Marvin - a Senior Software Engineer. Much of my work involves AWS and cloud technologies, from building applications to supporting them in production. Throughout my career, I've had the opportunity to work alongside experienced developers and designers, which has shaped my approach to writing clear, flexible, and maintainable software. I've worked on applications for international teams and users, adapting to fast-paced environments and delivering solutions using modern engineering practices.
Tech Stack
Skills & Technologies
A curated set of tools and technologies I use to build production systems.
Writing
Latest Posts
Thoughts on engineering, architecture, and the craft of software.
FlappyLove — Real-Time Multiplayer Browser Game ❤️
A playful real-time multiplayer browser game built with Next.js and TypeScript, featuring multiplayer rooms, synchronized gameplay, live scoring, and a Railway-hosted game server. ❤️
Phase 4: Building a Secure Next.js Identity Client
A Next.js and React client demonstrating OAuth, PKCE, JWT, and DPoP integration with the Secure Identity & Trusted Data API.
Phase 3: Securing OAuth Access Tokens with DPoP in ASP.NET Core
Phase 3 introduces DPoP sender-constrained access tokens to the Secure Identity & Trusted Data API, demonstrating ES256 proof-of-possession, JWT key binding, replay protection, OAuth scopes, and ASP.NET Core security architecture.
Phase 2: Building a Protected Identity & Trusted Data API with ASP.NET Core
Phase 2 extends the Secure Identity & Trusted Data API POC with a protected ASP.NET Core Resource Server, JWT/JWK validation, OAuth scopes, CQRS, Entity Framework Core, and PostgreSQL.
Phase 1: Building a Secure Identity Provider with ASP.NET Core, OAuth 2.1, PKCE, JWT & JWK
A self-contained identity integration POC built with ASP.NET Core and CQRS, demonstrating OAuth 2.1 Authorization Code flow, PKCE, JWT access tokens, RSA signing, and JWK-based public key discovery.
Building a Reusable AI Chatbot Widget with RAG
A standalone AI chatbot widget designed for seamless CMS integration, tenant isolation, secure communication, and RAG-based knowledge retrieval.
Let's work together
Let's Work Together
I'm currently open to new opportunities and looking forward to joining a team where I can contribute, learn, and build great software.
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