$ whoami
Software that ships.
Products that last.
I’m Xavier, a full-stack developer and designer. I build web apps, AI integrations, games and 3D assets, from the first design through launch and support.
Open to freelance, short-term and part-time work · Philippines
- HTML
- CSS
- JavaScript
- TypeScript
- React
- Next.js
- Vue.js
- Tailwind CSS
- Leaflet maps
- PWA
- Flutter
- Swift
- PHP
- Laravel
- WordPress
- Node.js
- FastAPI
- REST APIs
- MVC
- OOP
- Auth & roles
- WebSockets
- SQL
- MySQL
- PostgreSQL
- RDBMS
- Prisma
- Drizzle
- Supabase
- Git
- AWS
- Vercel
- Docker
- CI/CD
- Discord bots
- Monitoring
- Vitest
- Playwright
- Unit tests
- End-to-end tests
- Stripe
- Subscriptions
- Webhooks
- Invoicing
- Secure auth
- Rate limiting
- Caching
- Load testing
- User interviews
- Competitor audits
- Usability testing
- User flows
- Information architecture
- Wireframes
- UI design
- Interactive prototypes
- Game UI / NUI
- Design systems
- Accessibility
- Developer handoff
- Landing pages
- Responsive web
- Conversion design
- Claude API
- OpenAI API
- Structured output
- Streaming
- Tool use
- MCP servers
- Workflows
- Discord & app bots
- RAG
- Embeddings
- pgvector
- Document ingest
- Evals
- Prompt caching
- Guardrails
- Observability
- Vision models
- Document parsing
- Speech-to-text
- Text-to-speech
- Support bots
- Website chat
- Human handoff
- Knowledge bases
- Unity (C#)
- Unreal (C++ / Blueprints)
- Godot
- Enemy AI
- Rapid prototyping
- Level design
- Game feel
- Playtesting
- Netcode
- Matchmaking
- Leaderboards
- Cloud saves
- Steam & mobile builds
- Profiling
- Analytics
- Updates & patches
- Game UI
- HUDs
- Controller support
- Localisation
- Lua
- Qbox
- QBCore
- ESX
- ox_lib
- React NUI
- Menus
- Phones
- Resmon tuning
- oxmysql
- Anti-exploit
- txAdmin
- Hosting
- Tebex
- Discord
- Add-on vehicles
- Handling.meta
- Liveries
- LODs
- MLO interiors
- Collisions
- Portals & occlusion
- YMAP placement
- Custom clothing
- EUP
- Texturing
- Stream packs
- Luau
- ModuleScripts
- RemoteEvents
- Server authority
- Roblox UI
- Tweens
- Mobile & console input
- DataStores
- ProfileStore
- Game passes
- Developer products
- Map building
- Terrain
- Lighting
- Optimisation
- Meshes
- Weapons & vehicles
- Characters & rigs
- SurfaceAppearance
- UGC accessories
- Layered clothing
- Classic clothing
- Marketplace upload
- Studio plugins
- Systems & kits
- UI kits
- Model packs
- Hard surface
- Props
- Environments
- Vehicles
- UV unwrapping
- Baking
- PBR materials
- Retopology
- Collision meshes
- Export pipelines
- Rendering
- Turntables
- Rigging
- Animation
- Three.js
- Sculpting
- Character modelling
- Skinning
- Facial blendshapes
- Environment art
- Interiors
- Archviz
Things I've built
all 5 projects →//Full-Stack Development03
2026Full-stack build
CRM Platform
A CRM with customer memory for a contact-centre network: contacts, accounts, leads, deals, quotes and support tickets, with every interaction on one timeline.
- React
- TypeScript
- TanStack Query
- +3
2026Full-stack build
Calibration Automation
Automates the calibration of a precision multimeter against a reference calibrator: it drives both instruments, checks every test point against its tolerance and writes the certificate.
- React
- Material UI
- Redux Toolkit
- +3
2026Full-stack build
Food Surplus Marketplace
A marketplace where bakeries, restaurants and groceries sell end-of-day surplus at a discount: customers reserve and pay online, then collect with a pickup code.
- Next.js
- TypeScript
- Server Actions
- +4
//UI/UX Design01
2026Product design and front end
Tow Booking App
A tow-booking app that works like a ride-hailing app: the customer pins their car, picks a truck at an upfront price and tracks it live, while the nearest tow partner accepts the job on their own phone.
- React
- TypeScript
- React Router
- +3
//AI Engineering & Integration01
2026AI integration and front end
Metrology AI Service
Reads an instrument's manual and pulls out its tolerance table, then forecasts from past calibrations when the instrument will drift out of spec.
- React
- TypeScript
- Recharts
- +2
Services
7 entries
- 01Full-Stack DevelopmentSaaS products, web apps and internal tools, built end to end: the database, the API and the interface your users see, then kept fast and running after launch.48 skills
- 02UI/UX DesignResearch, flows, wireframes and finished UI for web, mobile and game screens. I design things I can also build, so handoff is short.15 skills
- 03AI Engineering & IntegrationLLM features, agents and automations wired into the products and tools you already use, with the evals and guardrails to trust them in production.24 skills
- 04Game DevelopmentIndie and commercial games in Unity, Unreal and Godot: from the first playable prototype to a polished release on PC, mobile and the web.20 skills
- 05FiveM DevelopmentScripts, NUI and full roleplay servers on Qbox, QBCore and ESX, tuned for low resmon and built to be configured, not forked.28 skills
- 06Roblox DevelopmentRoblox games, builds, models and UGC: Luau systems, maps, meshes, avatar items and Creator Store products, built to run smooth on a full server and on phones.27 skills
- 073D DevelopmentGame-ready props, vehicles, environments and renders: modelled, textured and optimised for FiveM, Roblox, Unity or the web.24 skills
How I work
Every service runs on the same four steps, so a design job can turn into the build without starting over.
more about me →- step_01
Brief
A short call about what you need, who it's for and when it has to be live.
- step_02
Design
Flows and screens in Figma, agreed with you before any code is written.
- step_03
Build
The app or resource, shipped in small pieces you can try as it grows.
- step_04
Run
Deployed, documented and handed over, with fixes covered after launch.
$ ./start-project --with xavier