Open to work

Halo, I’m Dean Villamia
Tech Lead · Full-Stack Engineer

Leading engineering teams since 2021 — architecture, delivery, and code quality where security and correctness are non-negotiable.

Trusted by
About me

I’m a tech lead who has led engineering teams since 2021 — currently a team of six at OPUS (UK), a mobile squad at a licensed digital bank, and an interim lead before that. 6+ years full-stack across fintech, enterprise and startup, owning architecture from database schema through APIs to frontend.

I live with those decisions as the system grows: service boundaries, API contracts, and data flow on systems where security and correctness are non-negotiable. Lately that also means agentic AI — LLM orchestration, vector search, and automation across Make and n8n — without losing the full-stack craft underneath.

Dean Villamia
Tech Lead · Full-Stack Engineer · Philippines
Stack
Full-Stack
ReactNext.jsNode.js / ExpressTypeScript
Databases / ORM
PostgreSQLMongoDBFirestoreRedisPrismaTypeORM
Mobile
FlutterReact NativeSwift (iOS)Native Android
AI / Agentic
LLM orchestrationVector searchMaken8nClaudeCursor
Cloud / DevOps
AWSGCPFirebaseDockerKubernetesCI/CD
Architecture & Practice
REST APIsMicroservicesTDDClean ArchitectureOWASPGDPR
Leadership
Team leadershipSprint planningCode reviewMentoring
Also
Power AppsShopifyWordPress
Projects
Op
OperatorTech Lead

WhatsApp AI assistant for 2,000+ founders — turns a late-night request into a confirmed warm intro in minutes. LLM reasoning and tool-calling handle matching, semantic search, and CRM sync unattended. Vector retrieval from a live knowledge base; automation across Make, n8n, HubSpot, and ElevenLabs.

UnionDigital Bank
UnionDigital BankLead App Dev

Core banking & loan-servicing super-app for a licensed digital bank that acquired 1.7M customers. Led 4 Flutter developers across Android & iOS.

GOMO PH
GOMO PHFlutter Dev

Globe’s self-service telco app — eSIM, data plans, and account control for a high-traffic consumer base.

OP
OPUS CommunityTech Lead

Founder network with ML-driven member matching, interactive map, and events. Lead the engineering team shipping weekly releases — Next.js, Express.js, PostgreSQL, and the Operator automation layer.

1-min demo
アト
AtopiyoDeveloper

Japan’s #1 eczema-care app and largest atopic-dermatitis platform — anonymous visual symptom tracking that helps patients monitor flare-ups and powers AI research into atopic dermatitis with university hospitals.

Move UpDeveloper

A micro-learning platform for training, onboarding, and continuous development — mini-quizzes and digital certificates that track an individual or team’s learning journey and help organizations upskill and manage communities of learners.

JB
Juno BioShopify

At-home vaginal microbiome testing & care storefront — built on Shopify for kit orders, subscriptions, and HSA/FSA checkout.

Experience
Tech Lead · Full-Stack EngineerOct 2025 — Present
OPUS — UK (Remote)

Hired part-time to build a POC; converted full-time Feb 2026. Lead a team of 6 — 4 engineers and 2 QA — shipping weekly releases through sprint planning, architecture, and code review. Own the stack end to end on Next.js, Express.js and PostgreSQL. Built Operator, a WhatsApp AI assistant for 2,000+ founders; automation backbone across Make and n8n, wiring LLM orchestration to HubSpot and ElevenLabs.

Lead App DeveloperFeb 2024 — Feb 2026
Union Digital Bank via Questronix★ Team Player of the Year ’23

Built core banking and loan-servicing features for a licensed digital bank that acquired 1.7M customers — security and correctness non-negotiable. Led 4 Flutter developers — task breakdown, code review and mentoring. Practised TDD with automated coverage for banking-grade review. Owned CI/CD and mobile DevOps; wrote native Swift and Android alongside Flutter.

Full-Stack DeveloperJun 2023 — Feb 2024
Decode Technologies

Built backend services in a microservices architecture — PostgreSQL via Prisma and TypeORM, Redis for caching and session handling, Docker-containerised. Shipped features across mobile and backend with Flutter and Node.js, within Agile and GitFlow.

Mobile Developer (SE III)Jun 2022 — Jun 2023
Stratpoint Technologies

Delivered and deployed features on large-scale client projects with Flutter, contributing to back-end web work and unit testing. Translated business logic into working features with analysts and PMs, and proposed tech-stack improvements adopted by the team.

Full-Stack DeveloperDec 2021 — Jun 2022
Indra Philippines

Owned feature development and production bug-fixing across Node.js, React and React Native.

Full-Stack Developer · interim leadFeb 2020 — Dec 2021
UpUpApp

Owned feature development and production bug-fixing across Node.js, React and React Native. Stepped up as interim lead — kept features aligned with business logic, coordinated with PMs and reported status to clients.

Education
BS Computer Science2021
University of Makati

Major in Application Development.

Scrum Foundation (SFPC) v20202019
Certification
Team Player of the Year2023
UnionDigital

Stack Overflow — 500+ reputation answering full-stack and mobile questions.

Let’s build something that holds up.

Open to tech lead and full-stack roles — remote-friendly across PH and UK time zones.