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Norberto Joso

@norbertojoso

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Senior Full Stack Developer specializing in scalable web platforms and performance.

Philippines

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What I'm looking for

I seek roles building scalable web platforms, emphasizing performance, microservices, CI/CD, and collaborative product-driven teams that value technical modernization and measurable impact.

I am a Senior Full Stack Developer with 8+ years building scalable web platforms using C#, Python, PHP, React, and modern backend frameworks. I have a proven record of leading end-to-end implementations, modernizing legacy systems, and delivering business-critical features used by 100K+ users while improving system performance and reducing production issues.

My work includes designing microservices with FastAPI, building enterprise SaaS with ASP.NET Core and React, and migrating legacy PHP modules to RESTful services. I focus on performance optimization, reliable CI/CD practices, secure authentication and role-based access, and close collaboration with product, QA, and DevOps to ship high-impact features that increase retention and reduce costs.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Developer

Belitsoft

Sep 2022 - Dec 2025 (3 years 3 months)

Led development of enterprise SaaS platforms using C#, ASP.NET Core, and React, improving API response time by 45% and reducing deployment failures by 35% through microservices and modernization efforts.

C++ASP.NET Core React fastAPI Microservices RESTful APIs Docker SQL Server Performance Optimization

Full Stack Developer

Netguru

Mar 2020 - Jun 2022 (2 years 3 months)

Delivered client-facing web applications using C#, Laravel, and Vue.js, improving reporting speed by 40% and reducing page load times by 35% while meeting 100% of delivery deadlines.

C++PHP Laravel Vue.Js Python SQL API Integration CI CD Performance Optimization

Full Stack Developer

Sonata Software

Nov 2018 - Jan 2020 (1 year 2 months)

Developed scalable backend services with ASP.NET MVC and Python, implemented CI/CD pipelines that shortened release cycles and refactored monolithic PHP apps to improve stability by 25%.

ASP.NET MVC Python PHP CI CD SQL Automated Testing

Freelance Full Stack Developer

Freelance

Apr 2017 - Nov 2018 (1 year 7 months)

Built custom web applications and APIs for startups using PHP, Python, and C#, delivering end-to-end projects with 100% client satisfaction and improving site speed by 40%+.