Open to opportunities

Jayson User

@jaysonuser2

Message

I build scalable full-stack applications, APIs, cloud systems, and AI-powered product features.

Philippines

Message

What I'm looking for

I'm looking for full-time, contract, or freelance roles where I can build scalable full-stack products, backend APIs, cloud systems, and AI-powered features. I’m open to remote, hybrid, or on-site work and relocation.

I've built scalable web products for Aidma Holdings, Openfair, and international freelance clients, spanning AI marketplaces, B2B sales automation, booking platforms, and operational data tools.

At Aidma Holdings, I built shared React and Vue.js libraries across 5+ products, reduced feature build time by about 30%, led 5+ engineers, and optimized Elasticsearch across 50M+ records to under 300ms. At Openfair, I built backend systems for an AI-powered business marketplace and BigQuery pipelines processing millions of events each month.

I'm currently building full-stack applications with Angular, Symfony, Twig, REST APIs, Docker, CI/CD, and OpenAI-powered features. I’m open to full-time, contract, or freelance work in remote, hybrid, or on-site settings, including relocation.

Experience

Work history, roles, and key accomplishments

Current

Freelance Full Stack Engineer

Current

Self-Employed

Apr 2026 - Present (4 months)

Building and maintaining full-stack web applications for international clients using Angular, Symfony (PHP), and Twig. Developing front-end components, backend REST APIs, and third-party integrations, including OpenAI API and LLM-powered features.

Angular Symfony PHP Twig REST APIs OpenAI API LLM Docker CI CD

Senior Full Stack Developer / Frontend Lead Developer

Aidma Holdings

Mar 2021 - Mar 2026 (5 years)

Built shared React and Vue.js UI libraries used across 5+ products, cutting feature build time by ~30%. Grew to Lead Developer in 2 years, managing a team of 5+ engineers and improving sprint output by ~25%.

React Vue.Js TypeScript Elasticsearch Team Leadership Agile Scrum

Full Stack Developer / Backend Lead Developer

Openfair

Jul 2018 - Feb 2021 (2 years 7 months)

Built the backend for an AI-powered business marketplace using Node.js, Firebase, and Elasticsearch. Set up BigQuery pipelines processing millions of events monthly, cutting manual reporting by 60%.

Node Firebase Elasticsearch BigQuery Code Review