Ship Software That Works End to End
Full stack web development services by Johnbert Oñez, Philippines. I build production web applications, SaaS platforms, and APIs using Next.js, React, TypeScript, and Node.js — fixed scope, fixed price, remote-friendly for clients worldwide.
Fragmented development leaves your product half-finished and hard to maintain.
Most development projects fall apart at the seams — the frontend team does not talk to the backend team, the API was never documented, and the database schema was designed without thinking about scale. You end up with a product that works today but breaks the moment you try to change it.
Generic templates and no-code tools get you 70% of the way there, then leave you stuck. When the business needs something specific — a workflow, a permission model, a data structure — you need someone who can write the code, not drag tiles around a canvas.
One engineer who owns the full stack, start to finish.
I build complete web applications — database, API, server logic, and frontend — under one architectural vision. Based in Davao City, Philippines (UTC+8), I work async-first with US, AU, and EU clients, delivering structured communication and working software at every milestone.
- Full ownership: database schema through deployed UI — no handoff gaps
- TypeScript end-to-end for type-safe, self-documenting codebases
- APIs designed for maintainability, not just the immediate use case
- Deployed to your cloud of choice with CI/CD and monitoring in place
- Source code, docs, and architecture diagrams delivered at handoff
Full Stack Services I Deliver
Web App Development
Custom web applications built with React and Next.js on the frontend, Node.js or Python on the backend, and PostgreSQL or MongoDB as the data layer. Designed for real users, not demos.
SaaS MVP Development
From zero to a working SaaS product: user auth, subscription billing, multi-tenant data isolation, and a core feature set scoped to validate your market as fast as possible.
API Development
RESTful or GraphQL APIs designed with clean contracts, versioning, rate limiting, and proper error handling. Documentation that your frontend team or third-party integrators can actually use.
Database Design
Schema design that accounts for your query patterns, growth trajectory, and access control model. Migrations, indexing strategy, and query optimization included — not bolted on later.
DevOps & Deployment
Production deployment with CI/CD pipelines, environment configuration, containerization, and monitoring. Your app lands on a server that stays up and alerts you when something goes wrong.
Technical Consulting
Architecture reviews, technology selection, codebase audits, and roadmap planning for teams that need experienced judgment before committing to a direction. Async sessions available.
Transparent Pricing, Fixed-Fee Projects
One-time project fee
A focused feature, internal tool, or MVP prototype to validate a concept.
- Single-purpose web app or feature module
- Database schema and API for core functionality
- React or Next.js frontend with responsive layout
- Basic auth (email/password or OAuth)
- Deployment to Vercel or Railway
- 2 weeks post-launch support
- Full source code ownership
One-time project fee
A complete product — multi-feature, production-grade, ready for real users.
- Full-stack web application with up to 5 core features
- Role-based access control and permission system
- Third-party integrations (payment, CRM, email, storage)
- Admin panel for user and content management
- CI/CD pipeline and production deployment
- 30 days post-launch support with weekly check-ins
- Architecture docs and API reference delivered at handoff
Scoped per project
Complex systems — multi-tenant platforms, high-traffic applications, or legacy modernization.
- Unlimited feature scope
- Multi-tenant architecture with tenant isolation
- High-availability infrastructure design
- Performance engineering and load testing
- Full observability stack: logging, metrics, alerting
- On-premises or private VPC deployment
- Retainer option for ongoing development
From Requirements to Running Software
Discovery & Scoping
A structured session to clarify your goals, users, and technical constraints. I produce a written scope document with feature list, technology choices, and delivery timeline before any code is written.
Architecture Design
Data models, API contracts, component structure, and infrastructure plan designed and reviewed before development starts. Changing architecture on paper costs nothing — changing it in code costs weeks.
Build in Milestones
Development in weekly milestones with working demos you can interact with. Each milestone closes with a Loom walkthrough and written summary of what was built and what comes next.
QA & Refinement
Functional testing, edge case handling, and performance checks on each module before it ships to production. Bugs caught in dev cost a fraction of bugs caught in production.
Deploy & Handoff
Production deployment with CI/CD, monitoring, and environment documentation in place. You receive the full codebase, architecture docs, API reference, and a recorded walkthrough of every system.
Why This Code Holds Up Over Time
TypeScript Everywhere
Frontend, backend, and API layer all share TypeScript types. Refactoring is safe, bugs surface at compile time instead of in production, and the codebase stays readable as it grows.
API-First Design
The backend is designed as a proper API before the frontend is built. That means your product can support a mobile app, a third-party integration, or a redesign without rewriting your business logic.
Schema-Driven Database
Database schemas are designed before development starts, with proper indexing, foreign keys, and migration files checked into version control. No ad-hoc columns added under pressure.
Security Built In
Input validation, parameterized queries, CORS configuration, rate limiting, and proper session management are not optional add-ons. They are part of the standard build.
Async-First Communication
Based in Davao City, Philippines (UTC+8). All projects run on async-first communication: Loom demos, written updates, and GitHub PRs. US, AU, and EU clients get full transparency without live call requirements.
Documented for Your Team
Every project ships with an architecture overview, database schema reference, API documentation, and environment setup guide. Your team can onboard without asking me how things work.
Full Stack Projects, Real Results
"We had a fragmented codebase that three contractors had contributed to over two years. Johnbert audited it, proposed a clean architecture, and rebuilt the core in 6 weeks. The new version is faster, easier to extend, and our dev team actually understands it."
"JB built our internal project management tool from scratch — database design, REST API, React frontend, and Vercel deployment. He delivered a working prototype in week two, which was something our previous developer had not managed in three months. Communication was excellent across the AU-PH timezone gap."
"We needed a multi-tenant web application with per-tenant data isolation and a subscription billing layer. Johnbert scoped it accurately, warned us about the tricky parts upfront, and delivered a production-ready system that has been running without incidents for four months."
Full Stack Development, Answered
Johnbert Oñez
AI Solutions Engineer & Full Stack Developer · 6+ yrs · 50+ projects
Based in Davao City, Philippines. Specialises in production AI systems, full-stack web applications, and WordPress. Remote-first, async-friendly, fixed-fee projects.
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AI systems, SaaS platforms, WordPress solutions — whatever the scope, I bring craftsmanship and precision from day one.