Hire TypeScript Experts
You have a large JavaScript codebase where every change is a gamble, or TypeScript is on but riddled with "any". We place a developer to add types a part at a time while features keep shipping. Usually you want a framework developer who writes good TypeScript, so tell us your framework too.
We reply within one business day (IST). NDA available on request.
TypeScript does not remove runtime errors. It checks your code before it runs, and only as far as your types are honest. The skill lies in making the types tell the truth at the places where bad data gets in.
Starting with allowJs and the most-used modules, then tightening compiler settings as coverage grows. Strict flags go on one at a time, or apply to new and changed files first, so the error list stays manageable.
A type annotation on an API response proves nothing. Schema validation with a tool like Zod at each boundary, and types generated from an OpenAPI file, make what the compiler believes match what really arrives.
Discriminated unions for states that cannot overlap, and generics where they save real repetition. Type-level cleverness that nobody else can read is a cost. So is a build that takes minutes to type-check.
Compare TypeScript developer levels, experience, and monthly rates (160 h per month, retainer discount; USD, invoiced in USD, GBP, EUR or INR). Every level is available on hourly, monthly, or dedicated-team engagements; short pieces of work are from $20/h.
Converts small files, adds annotations and fixes compiler errors on a plan someone else has set. Risks reaching for "any" without review.
Builds typed features in your framework, adds runtime validation at API boundaries and converts modules as they are changed.
Plans a large migration, turns on strict flags in stages, builds shared type packages and fixes slow compiles. Start here if the codebase is large and shipping cannot stop.
Shares types between a Node.js backend and a React or Next.js front end, so a change on one side is caught at build time on the other.
Tools that come up on TypeScript engagements. If your project runs on something else, say so in your brief.
Your developer is part of our engineering team in India with 3–5 hours of overlap with the UK and Europe; US calls by appointment.
A framework developer who writes good TypeScript suits most teams. A specialist is worth it for a large migration, shared type libraries or heavy generic code.
Your framework, rough lines of code, your tsconfig strictness, and how much is still JavaScript. After a call we confirm who is free and a start date.
A type migration rarely needs its own project. A monthly developer can convert modules as they are changed, so the code improves where it is being worked on.
This website is a TypeScript and Next.js codebase. Beyond that, most of our client work is under NDA, so ask us on the call about work like yours.
Common questions about hiring TypeScript developers from itmarkerz.
None, some, or all of it but with "any" everywhere. Add your framework, and we will reply within one business day (IST) with how we would start.
Fill out the form below. We reply within one business day (IST).
A dedicated team of 14–15 PHP developers recruited, employed and managed by itmarkerz in Kerala for about three years, working exclusively on a Dubai technology company's products. The model behind our hire-developers offer.