Raphael Mansueto
Full Stack AI Engineer
I build with AI the way most engineers use linters: always on, deeply integrated. Multi-agent pipelines, LLM orchestration, and RAG systems that run in production, not demos. Based in Cebu, Philippines.
About
My entire workflow runs through AI-assisted development: Claude Code and Codex interchangeably depending on the task, spec-driven pipelines that validate before deployment, and custom AI skills I wrote to enforce TDD-first architecture. The result: I deliver production systems at a pace and cost that doesn't make sense for a solo engineer.
That same discipline scales to compliance-grade environments. Proper security processes, cross-team coordination, audit trails, and code review gates on every merge.
BS Computer Science from CIT University, Cum Laude. Open to side projects and part-time freelance.
Experience
Senior FullStack Developer · VISEO · Digital Asset Settlement
Jun 2025 →Building the platform that bridges traditional finance with on-chain settlement. Delivered the operator-facing frontend covering admin, compliance, transactions, and ledger. Built the gateway services that automate the full custody-to-settlement flow. All institutional transfers secured with AWS KMS signing and EIP-712 tamper evidence.
Full Stack Engineer · Ample · AI PR Pipeline
May to Dec 2025Automated the entire PR workflow from news research to social posting, replacing 3 to 4 hours of daily manual work. Built specialized AI agents with intent classification, persistent memory, and tool calling. Routed xAI, Gemini, and OpenAI per task behind one provider-agnostic interface. Wired voice interviews, auto-captioned clips, and scheduled multi-platform distribution into a single event-driven pipeline.
Lead Front-End Engineer · Hustlewing
Feb 2023 to Apr 2025Led the migration from Webflow to Next.js. User base grew 300% in six months. Embedded OpenAI and LangChain for resume extraction and chatbot-driven UX, lifting engagement 20%. Directed design overhauls, managed cross-team delivery, and authored comprehensive test coverage.
Full-Stack Developer · Outliant
Jun to Nov 2022Built end-to-end features for a social platform, both the React/Next.js frontend and RESTful APIs. Took over delayed sprints and brought them to on-time delivery. Specialized in form-heavy workflows and admin dashboards.
Junior Software Engineer · Vibravid
Jun 2021 to Mar 2022First engineering role. Built Web3 UIs for smart contract interactions and deployed Solidity contracts on Ethereum via Hardhat. Integrated three blockchain APIs (Tron, WAX, Syscoin) and built a Telegram bot that automated community airdrops.
Personal Projects
Ugnay: AI Storefront Builder
Filipino insurance and real estate agents get a professional web page through a two-step conversation instead of a form. AI modifies a typed JSON spec, not raw HTML, so layouts are composable and infinite. Swappable AI service abstractions behind DI. RAG-powered visitor chatbot grounded in the agent's own content. TDD-first with Vitest and Playwright.
KudosCourts: Sports Court Booking
Find and book sports courts anywhere in the Philippines. Handles the full booking lifecycle from reservation to check-in across walk-in, advance, membership, and recurring models. Event-driven notifications via QStash. Built solo from architecture to marketing.
Awards
Rank 7, 7th TOPCIT Philippines 2022
CHED Philippines · National IT skills assessment
2nd Place, CIB.O Interschool Hackathon 2023
Cebu IT BPM Organization · Solutions for job hiring processes
Open to freelance
Chat, agents, RAG, streaming added to your existing app
Mastra workflows, tool calling, memory, observability
Next.js · Supabase · tRPC · Drizzle, end-to-end
Payment gateways, webhooks, auth flows, billing