David Pardo Calzadilla
Full Stack Developer with 5+ years of experience specializing in the .NET ecosystem (C#) and designing scalable APIs using clean architectures (DDD/Hexagonal).
About
Full Stack Developer with 5+ years of experience specializing in the .NET ecosystem (C#) and designing scalable APIs using clean architectures (DDD/Hexagonal). Skilled in building and optimizing robust backend services with strong SOLID principles, and delivering maintainable layered systems across multiple production projects.
I also optimize frontend performance with TypeScript and Next.js, and automate workflows by integrating AI agents and LLMs. I manage end-to-end development from requirements to launch, ensuring quality, performance, and clean, scalable implementations.
- 5 years' experience
- Joined July 2026
Skills· 13
Languages
- Spanish; CastilianFluent
- EnglishAdvanced
Industry experience
- Software & Internet
- Computers & Electronics
Work experience
Led the design and implementation of maintainable, layered backend systems, reducing technical debt by 25% and improving long-term maintainability across 5 large-scale projects. Developed and optimized scalable .NET (C#) backend APIs, improving data-processing efficiency while integrating responsive React and React Native frontends. Enforced SOLID principles and advanced design patterns to improve performance and enable a faster deployment cycle for new production features.
Designed and deployed highly optimized web applications using TypeScript and Next.js, improving page-load speeds and ensuring strong core web vitals for dynamic interfaces. Implemented and optimized relational databases and RESTful API integrations to ensure data integrity and improve response times. Managed the full software development lifecycle autonomously for 10+ clients, from requirements analysis through production launch, delivering solutions on time and within budget.
Education
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