Production Web Applications, Built & Shipped by One Engineer
SaaS solutions, real-time systems, and the production deployments behind them - designed, built, and owned by a single senior engineer. From the first migration to the first paying user, with performance optimization built into the architecture, not bolted on after launch.
- SaaS solutions - multi-tenant, Stripe billing, SSO, dashboards
- Real-time systems - WebSockets, live data, optimistic UI
- Production deployments - CI/CD, zero-downtime, monitoring
- Performance optimization - 95+ Lighthouse, 10K+ req/day
No commitment to enquire · Reply within 24 hours · UK, US, Canada & worldwide
20+
Production web applications shipped end to end - SaaS platforms, dashboards, and real-time systems, frontend to database to deploy
10K+
Daily API requests sustained at 99.9% uptime across production deployments handling real traffic, not happy-path demos
95+
Lighthouse score on every build - performance optimization baked into the architecture, not bolted on after launch
4+
Years owning web applications across FinTech, SaaS, and enterprise - one engineer, full product ownership
Web Application Expertise
What I Build
Complete web applications - not just components or endpoints. SaaS solutions, real-time systems, and the production deployments that keep them online, all owned by one engineer with full context on every layer.
SaaS Solutions
Multi-tenant SaaS platforms with Stripe billing, SSO authentication, onboarding flows, role-based dashboards, and an admin back office. The complete SaaS stack from database schema to marketing site - built to take you from private beta to paying customers.
Real-Time Systems
Live dashboards, collaborative editors, notifications, and presence built on WebSockets and server-sent events. Optimistic UI, conflict resolution, and reconnect handling - real-time systems that stay correct under flaky networks and concurrent edits.
Custom Web Applications
Bespoke web applications with a Next.js App Router frontend, a NestJS or Express API, a PostgreSQL database, and Redis caching - one codebase, one engineer, full accountability. No coordination overhead between a frontend team and a backend team.
REST & GraphQL APIs
Typed APIs with Zod validation, JWT auth, RBAC, rate limiting, and OpenAPI docs - the backbone behind every web application. APIs that survive real, adversarial traffic at 10,000+ requests a day, not just the demo path.
Performance Optimization
Slow application? I take builds from sluggish to 95+ Lighthouse - LCP under 2.5s, bundle size cut, N+1 queries killed, hot paths cached. See the dedicated performance optimization service for the full audit-and-implement process.
Production Deployments
CI/CD pipelines, zero-downtime releases, monitoring, and rollback plans on Vercel or AWS. Production deployments treated as a first-class deliverable - your web application ships on a pipeline, not from a laptop.
Why Hire Me
Why Full Product Ownership Matters
Split teams create split accountability. When one engineer owns the schema, API, UI, and production deployment, there are no gaps - and your web application has someone genuinely accountable for it.
Full product ownership
I own the schema, the API, and the UI - and I'm accountable for all three. No hand-off between teams, no gap between the API contract and the component that calls it. Product ownership means I care about what your web application does after deploy day, not just whether the ticket closed.
Performance optimization at every layer
95+ Lighthouse on the frontend, sub-50ms p95 on the API, indexed queries in the database. Performance optimization isn't a frontend concern or a backend concern - in a web application it's a full-stack concern, and I treat it that way from the first commit.
Built for real-time and scale
Real-time systems and high-traffic web applications fail in ways demos never reveal - race conditions, dropped sockets, N+1 queries under load. I architect for production deployments handling 10,000+ daily requests, with caching and observability in from day one.
Architecture that survives the first pivot
SaaS solutions live or die on how well the data model and domain boundaries hold up when the plan changes. I make the structural decisions up front so your web application treats pivots as features, not rewrites.
Common Questions
Before You Reach Out
The questions every client asks before commissioning a web application - answered honestly.
How much does it cost to build a web application?
For a scoped build - an MVP, a SaaS module, a real-time feature - I quote fixed price. For ongoing product work I offer a weekly or monthly retainer. You get a written proposal within 24 hours of a brief: scope, timeline, and price. No verbal estimates and no discovery calls until you've seen the numbers.
Do you build SaaS solutions from scratch?
Yes. Multi-tenant architecture, Stripe subscriptions, authentication with SSO, onboarding, admin dashboards, and the marketing site - the complete SaaS stack owned by one engineer. From first commit to first paying user.
Can you build real-time features into my web application?
Yes - live dashboards, collaborative editing, notifications, and presence using WebSockets or server-sent events, backed by Redis. I handle the hard parts: optimistic UI, conflict resolution, reconnect logic, and keeping real-time systems correct under concurrent edits.
What does full product ownership actually mean?
I own every layer - PostgreSQL schema, the API, the React/Next.js UI, the CI/CD pipeline, and the production deployment. One point of contact, full accountability, and someone who's still invested after launch. No account managers, no junior devs learning on your budget.
How do you handle production deployments?
Vercel for Next.js applications - best-in-class for the framework. AWS (EC2, ECS, RDS, S3, CloudFront) for clients with specific infrastructure needs. Everything ships through CI/CD with zero-downtime releases, monitoring, and a rollback plan - production deployments are a deliverable, not an afterthought.
My web application is slow - can you fix it without a rebuild?
Usually, yes. Most performance problems are a handful of fixable issues: unoptimized images, oversized bundles, N+1 database queries, missing caching. I measure on real users, fix the 20% that unlocks 80% of the score, and target 95+ Lighthouse - see the performance optimization service for the full process.
Related Expertise
Other Ways I Can Help
Looking for a different speciality? Here are the most relevant pages.
Full-Stack Developer
React, Next.js, NestJS, PostgreSQL & AWS - one engineer, full ownership from database to deploy
SaaS Developer
Multi-tenant apps with Stripe billing, auth flows, onboarding, and admin dashboards
Next.js Developer
95+ Lighthouse, SEO-first App Router builds - from Server Components to production deploy
Node.js Developer
10K+ req/day APIs at 99.9% uptime - NestJS, Express, GraphQL, Redis, and AWS
Ready to build a web application with full product ownership?
Send your brief. I'll reply within 24 hours with a written proposal - scope, timeline, and price. SaaS solutions, real-time systems, or a rescue on an existing build.