TypeScript That Catches Bugs Before They Ship
Runtime errors are expensive. A proper TypeScript setup catches them at compile time — before your users do. I write strict-mode TypeScript across the full stack so the type system works for you, not against you.
- Strict mode enabled from commit one — no any, no suppressions
- End-to-end typed APIs — from HTTP request to database response
- JavaScript-to-TypeScript migrations without blocking your team
- Fixed-price proposals — scope agreed in writing before work starts
No commitment to enquire · Reply within 24 hours · UK, US, Canada & worldwide
100%
Strict-mode TypeScript across every project — no any, no workarounds, no suppressions
4+
Years writing TypeScript in production across React, Node.js, and NestJS stacks
30+
Fully typed codebases delivered — frontend, backend, and shared type contracts
80%
Fewer runtime type errors in production after migrating JS codebases to strict TS
TypeScript Expertise
What I Build With TypeScript
Not typed-for-show. Full-stack, strict-mode TypeScript where the type system actively prevents bugs in production.
Strictly Typed React & Next.js Apps
Every component, hook, and API call fully typed. Props validated at compile time, not discovered at runtime. Your IDE becomes a safety net, not a suggestion box.
Typed NestJS & Express APIs
End-to-end type safety from HTTP request to database response. DTOs, decorators, response types — the entire API surface is documented by the type system itself.
Shared Type Contracts (Monorepos)
A single source of truth for types shared between your front-end and back-end. No more drift between what the API sends and what the client expects.
JavaScript to TypeScript Migrations
I've migrated live production codebases from JavaScript to TypeScript incrementally — without shutting down development or introducing regressions.
GraphQL With Full Type Generation
Schema-first GraphQL with codegen — your queries, mutations, and resolvers all type-checked automatically. No manually maintained interfaces that drift from reality.
Runtime Validation With Compile-Time Safety
Zod and class-validator schemas that enforce type correctness at the boundary — parse-don't-validate at the API edge, strict types everywhere else.
Why Hire Me
The Difference Between Typed and Properly Typed
Adding .ts to your files doesn't make your codebase type-safe. The configuration, the patterns, and the discipline do.
Strict mode from day one
I don't start with loose config and tighten later. Every project starts with strictNullChecks, noImplicitAny, and noUncheckedIndexedAccess enabled. The type system earns its keep from commit one.
Types that document, not just annotate
Well-named types and interfaces tell the next developer what a value means, not just what it contains. Discriminated unions, branded types, template literals — used where they add clarity.
No type-as-documentation theatre
I don't write types for show. If something can be inferred, I let it. If a generic would help, I write it. The goal is a codebase that's easier to work in — not one that looks impressive on a code review.
End-to-end type safety, not just the front-end
Most TypeScript projects have a typed front-end and an any-riddled backend. I type the full stack — API responses, database queries, environment variables, everything.
FAQ
Common Questions
What does strict-mode TypeScript actually mean?
It means the compiler is configured with strictNullChecks, noImplicitAny, strictFunctionTypes, and related flags enabled. This catches entire categories of runtime errors at compile time — null dereferences, missing properties, incorrect function signatures — before they ever reach production.
Can you migrate our existing JavaScript codebase to TypeScript?
Yes. I do this incrementally — starting with allowJs and tsconfig paths so TypeScript and JavaScript coexist, then migrating file by file without blocking your team's feature work. A scoping call will give you a realistic timeline and a phased plan.
Do you use TypeScript on the backend as well?
Yes — Node.js, Express, and NestJS with full TypeScript. DTOs, typed middleware, typed database queries via Prisma or TypeORM. The type safety runs from the HTTP request to the database and back.
How long does it take to set up a TypeScript monorepo?
A well-structured monorepo with shared types, a front-end app, and a backend API typically takes 3–5 days to scaffold properly — path aliases, build pipeline, shared packages, and CI. Getting it right upfront saves weeks of pain later.
Can you add TypeScript to a project that uses Zod or Prisma?
Absolutely — I use both regularly. Zod for runtime validation at API boundaries with inferred types, and Prisma for type-safe database queries. They compose well and I know how to wire them so the types flow end-to-end without duplication.
How much does hiring a TypeScript developer cost?
Fixed-price for scoped work — a migration, a new typed API, a frontend. Retainer for ongoing typed development. Send your brief and I'll reply with a written proposal within 24 hours.
Related Expertise
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Want TypeScript done properly?
Send your brief and I'll reply within 24 hours with a written proposal. Fixed price, clear scope, no surprises.