Sean Raimiel Tan — Senior Full-Stack Engineer
Six years designing and shipping cloud-native services, multi-tenant SaaS platforms, and AI-integrated products — from a 4.3★ ride-hailing app on both stores to production RAG on Azure. I lead teams, own the stack, and hold the quality line.
Based in Iloilo, PH · Remote across time zones
I'm a senior full-stack engineer who lives on the backend, ships the frontend, and treats production like a craft.
Six years designing, building, and scaling cloud-native backend services paired with polished React and React Native frontends. I've shipped a production ride-hailing mobile platform rated 4.3★ on both app stores with real-time geolocation, architected multi-tenant SaaS systems on NestJS, Prisma, and PostgreSQL, and led a team of seven engineers delivering AI-integrated products across international time zones.
I'm calm under latency, stubborn about schemas, and allergic to undocumented APIs. I like work that matters: multi-tenant SaaS with real users, AI systems that do real work, and ride-hailing platforms that people actually hail rides on.
EDU · BS Software Engineering, Central Philippine University (Dean's Lister, 2018–2023). Regional Science High School, graduated with High Honors.
6 years across SaaS, mobile, AI, healthcare, education
Feature pieces followed by additional production work
A production ride-hailing platform shipped to both app stores, built for high-traffic, latency-sensitive real-time geolocation and dispatching.
Backend architecture for a multi-tenant school-management SaaS serving multiple institutions, with FERPA-aware handling of sensitive student data.
Retrieval-Augmented Generation solution integrating LLM inference with enterprise knowledge sources, deployed with containerized CI/CD to Azure.
Near-real-time AppFolio sync with idempotent pipelines, cron-driven batch jobs, and operational dashboards for property operators.
Healthcare accounting backend with strict data-security, auditability, and compliance requirements, deployed on AWS EC2 / Lightsail.
n8n-driven automation agents and AI-assisted workflows to streamline operations and customer interactions for a 3D-printing business.
Fullstack workshop-management app with JWT authentication, file uploads, and markdown-backed notes — built on Next.js 16, Prisma 7, and PostgreSQL with a shadcn/ui front end.
Web utility for draft-survey calculations with spreadsheet export — a focused Next.js 16 + xlsx app with a clean single-purpose UI.
Automated Fair Value Gap trading bot for Bybit cryptocurrency futures. Bybit REST integration with HMAC request signing, time-zone-aware scheduling, and Recharts-powered analytics.
Personal-finance web app with JWT auth, Prisma + PostgreSQL persistence, Chart.js analytics, and a React Three Fiber visualization layer for 3D data displays.
Unity game project in C# with custom HLSL/GLSL shaders — a cross-discipline foray into game development, rendering, and real-time graphics.
More on GitHub → github.com/raimieltan
What I reach for first in production
Open to senior / staff backend and full-stack roles
The fastest way to reach me is email. I read every message, and I reply within a day. Tell me what you're building, how your team works, and where you want this to go — I'll tell you if I'm the right fit.