Hire expert TypeScript developers

Bring in TypeScript engineers who tighten compiler settings, migrate JavaScript file by file, and type the boundaries where bugs actually enter: API responses, forms, environment variables and third-party libraries.

Hire a developer View projects

Projects delivered: 50+
Average rating: 4.8/5
Response time: 24h

Hire a TypeScript developer

Tell us what you're building. We'll send a plan and a quote within 24 hours — no spam.

A cleaner way to hire TypeScript developers

Hire TypeScript developers through Krapton when you need types that actually prevent defects, not annotations that mirror whatever the code already does. TypeScript only checks what it can see, so the valuable work happens at the edges:...

Types that match runtime reality
A type annotation on fetch results is a promise nobody checks. TypeScript developers parse external data with Zod, Valibot or ArkType schemas, infer static types from those schemas, and fail loudly at the boundary instead of passing malformed data deep into business logic.
Strict mode without stopping delivery
Switching strict on in a large codebase can produce thousands of errors overnight. An experienced engineer enables flags one at a time, tracks remaining errors per directory, uses @ts-expect-error comments linked to tickets rather than blanket any, and keeps feature work moving throughout.
Shared types across the stack
When frontend and backend disagree about a payload, bugs surface in production. A full-stack TypeScript developer shares contracts through a monorepo package, tRPC routers or generated OpenAPI clients, so a renamed field breaks the build on both sides instead of breaking users.
Readable types, fast builds
Clever conditional types can slow the compiler and confuse colleagues. Krapton engineers profile slow checks with --extendedDiagnostics and --generateTrace, simplify deep generic chains, and prefer clear interfaces and discriminated unions that the whole team can read and extend.

Why TypeScript?

What makes TypeScript the right choice for modern engineering teams.

Static typing
TypeScript introduces static typing, allowing developers to declare and enforce variable types, reducing runtime errors.
Enhanced tooling
TypeScript provides advanced tooling, including autocompletion, refactoring, and improved navigation, for efficient development.
Type inference
TypeScript features type inference, reducing the need for explicit type annotations and enhancing code conciseness.
Compatibility with JavaScript
TypeScript is fully compatible with existing JavaScript code, allowing for a smooth migration process.
Object-oriented programming
TypeScript supports object-oriented programming concepts, promoting code organization and reusability.
Declaration files
TypeScript allows the use of declaration files (.d.ts) for interfacing with existing JavaScript libraries and modules.

What you can build with TypeScript

Type-safe full-stack apps
Next.js or React Router applications where tRPC or server actions carry types from database to UI, Prisma or Drizzle generate query types, and a single pnpm workspace keeps shared validation schemas in one place.
Published npm libraries
Packages with accurate declaration files, dual ESM and CommonJS output built with tsup or tsdown, exports maps that resolve correctly under bundler and nodenext module resolution, and type tests that catch breaking changes.
Typed API backends
NestJS, Fastify or Hono services with validated request and response schemas, OpenAPI documents generated from code, typed database access, and error types that clients can narrow on instead of parsing strings.
Design system components
React or Angular component libraries with typed props, carefully built polymorphic components, discriminated unions for variant APIs, and Storybook stories that double as living documentation for every prop.
Internal CLIs and tooling
Command-line tools, codemods and build scripts written in TypeScript with Commander.js or oclif, running through tsx or Node.js type stripping, and typed config files that editors can autocomplete.
Serverless and edge functions
AWS Lambda, Cloudflare Workers or Vercel functions with typed event payloads, environment variables validated at startup, and small bundles produced by esbuild so cold starts stay short.

Making TypeScript earn its keep

A TypeScript codebase can compile cleanly and still be unsafe. The usual culprits are any leaking in from untyped libraries, type assertions with as that silence real mismatches, non-null assertions sprinkled to quiet the compiler, and JSON.parse results trusted without checks. A senior TypeScript developer audits for these first, often with a typescript-eslint report and a coverage tool such as type-coverage, then fixes the highest-traffic paths. Data entering the system gets parsed with a schema; everything inside the boundary can then rely on its types. Domain states become discriminated unions so impossible combinations cannot be represented, and switch statements end in an exhaustive never check. The aim is not maximum annotation but maximum confidence: when the build passes, a refactor across many files should be safe to merge.

Tooling choices matter as much as type design. Teams now have several ways to run TypeScript: tsc for type checking, esbuild, SWC or Vite for fast transpilation, tsx for scripts, and type stripping in recent Node.js releases, which only works with erasable syntax, so enums and parameter properties need care. Microsoft’s Go-based native compiler, the TypeScript 7 line, promises much faster checks but means reviewing editor plugins and build integrations that depend on the old compiler API. Krapton developers separate transpilation from type checking in CI, keep a single source of truth for tsconfig, and document which TypeScript features the codebase allows. That keeps builds fast today and leaves the codebase ready for compiler and runtime changes without a painful rewrite later.

TypeScript in action

class Stack<T> {
            private items: T[] = [];
          
            push(item: T): void {
              this.items.push(item);
            }
          
            pop(): T | undefined {
              return this.items.pop();
            }
          
            peek(): T | undefined {
              return this.items[this.items.length - 1];
            }
          
            isEmpty(): boolean {
              return this.items.length === 0;
            }
          
            size(): number {
              return this.items.length;
            }
          
            print(): void {
              console.log(this.items);
            }
          }
          
          // Example usage with different types
          const numberStack = new Stack<number>();
          numberStack.push(1);
          numberStack.push(2);
          numberStack.push(3);
          numberStack.print();
          
          const stringStack = new Stack<string>();
          stringStack.push("one");
          stringStack.push("two");
          stringStack.push("three");
          stringStack.print();
          
          // Generic class with constraints
          class Pair<K, V> {
            constructor(public key: K, public value: V) {}
          
            toString(): string {
              return '(this.key, this.value);'
            }
          }
          
          // Example usage of Pair class
          const numberPair = new Pair<number, string>(1, "one");
          console.log(numberPair.toString());
          
          const stringPair = new Pair<string, boolean>("true", true);
          console.log(stringPair.toString());

What our TypeScript developers know

Every Krapton developer is vetted with real production experience in TypeScript across multiple industry domains.

TypeScript proficiencyExpertise in writing, debugging, and maintaining TypeScript code for web applications.
Static typing implementationMastery of implementing static typing in TypeScript for enhanced code reliability.
Tooling utilizationSkills in leveraging TypeScript's advanced tooling features for efficient and error-free development.
JavaScript compatibilityProficient in ensuring compatibility with existing JavaScript code when incorporating TypeScript.
Object-oriented programming practicesAbility to apply object-oriented programming principles in TypeScript for scalable and maintainable code.
Declaration file managementExperience in managing and utilizing declaration files to interface with external JavaScript libraries.

What our TypeScript developers go deep on

Compiler configuration and strictness
Tuning tsconfig for strict, noUncheckedIndexedAccess, exactOptionalPropertyTypes and verbatimModuleSyntax, choosing module and moduleResolution settings that match the runtime, and sharing base configs across packages in a monorepo.
Type modeling and narrowing
Discriminated unions with exhaustive never checks, branded types for IDs and currencies, the satisfies operator for config objects, and type guards or assertion functions that narrow unknown data safely.
Runtime validation libraries
Defining Zod, Valibot or ArkType schemas once and inferring static types from them, validating forms, API inputs and environment variables, and producing error messages users and logs can act on.
Generics and utility types
Writing constrained generics, mapped and conditional types, and template literal types where they remove duplication, and knowing when a plain overload or explicit interface is easier to maintain.
Linting and type-aware rules
Configuring typescript-eslint with type-checked presets and ESLint flat config, enabling rules such as no-floating-promises and no-misused-promises, so unhandled async mistakes are caught well before code review.
Declaration files and publishing
Authoring .d.ts files for untyped dependencies, contributing fixes to DefinitelyTyped, emitting declarations for internal packages, and validating published types with tools like Are the Types Wrong.

Common TypeScript projects we deliver

Migrating a JavaScript codebase to TypeScript
The developer adds allowJs and checkJs, converts leaf modules first, writes declaration files for untyped internal code, and raises strictness gradually. Product work continues in parallel, and every converted folder gets the typescript-eslint no-explicit-any rule.
Eliminating runtime errors from API drift
Production errors like “cannot read properties of undefined” often trace back to unvalidated responses. The engineer adds schema validation at fetch boundaries, generates clients from the OpenAPI spec, and wires contract checks into CI so drift fails a build.
Speeding up slow type checking
In large monorepos tsc and editor feedback can crawl. The developer introduces project references and incremental builds, isolates heavy generated types, replaces expensive type-level recursion, and runs tsc --noEmit per package in CI with caching.
Upgrading TypeScript across a monorepo
Each TypeScript release can tighten inference or change module resolution behavior. The engineer upgrades on a branch, reads the release notes for breaking changes, fixes new errors package by package, and aligns typescript-eslint and framework versions.

TypeScript solutions by industry

Fintech
Money amounts, currencies and account states modeled as branded types and discriminated unions, so mixing cents with dollars or skipping a state check fails compilation.
B2B SaaS
Multi-tenant products with many contributors, where shared types, strict settings and generated API clients keep a growing team from breaking each other’s features.
Healthcare
Clinical and patient data flows where FHIR resource types, validated inputs and exhaustive switch checks reduce the chance of silently mishandled records.
E-commerce
Catalog, cart and checkout code with typed product variants, pricing rules and payment provider webhooks, where a wrong field name means a lost order.

TypeScript vs JavaScript with JSDoc

Plain JavaScript with JSDoc annotations and checkJs gives a surprising amount of type checking without a compile step, and some library authors prefer it. TypeScript syntax is more expressive and far easier to read for complex types, and most tooling assumes it. For applications with several contributors TypeScript is usually the better default; small scripts and some libraries can reasonably stay on JSDoc.

TypeScript vs JavaScript with JSDoc
Dimension	TypeScript	JavaScript + JSDoc
Syntax	Inline annotations, generics and type declarations	Types written inside comments, more verbose
Build step	Needs tsc, a bundler or type stripping	Runs as-is; checking via tsc --checkJs
Complex types	Readable generics, mapped and conditional types	Possible but awkward in comment syntax
Tooling support	Default target for most frameworks and linters	Supported, with fewer examples and guides
Migration effort	Rename files, fix errors, raise strictness	Add comments gradually, no file renames
Best fit	Team applications and shared libraries	Small scripts and libraries avoiding compilation

How to hire TypeScript developers in 5 steps

A transparent, low-risk process — from first call to onboarded engineer in about two business days.

01Day 0
Share your brief
Tell us the stack, scope, seniority and the timezone overlap you need on a free 30-minute discovery call. No obligation, no sales pitch.
02Within 24 hours
Review matched profiles
We shortlist 2–3 pre-vetted TypeScript engineers from our in-house bench, with CVs and directly relevant work — usually within one business day.
03Days 1–2
Interview & test
Interview each developer yourself, run a paid trial task, or do a live pairing session. You decide who joins — we never push a profile.
04Within 2 days
Onboard securely
Sign a free NDA, then plug the developer into your Jira, repository and Slack. Engagements are month-to-month with no lock-in.
05Ongoing
Scale or replace
Scale the team up or down month by month as the roadmap changes. If the fit is not right, you get a free replacement within the first 30 days.

Other frontend technologies we work with at Krapton.

Three ways to hire TypeScript developers

Pick the engagement that matches how you actually work. No multi-year contracts — scale up or down month by month.

Dedicated developer
Most popular
Full-time TypeScript engineer who reports only to you. Best for ongoing products, long-term roadmaps and teams that need a core hire without the HR overhead.
- 40 hours / week
- Your Jira, your repo
- Month-to-month
Hourly / time & materials
Pay only for billable hours. Ideal for research spikes, code audits, or variable-load TypeScript work where scope is still being discovered.
- Weekly timesheets
- Slack-first comms
- No minimum commit
Fixed-price milestones
Scoped delivery with clear milestones and acceptance criteria. Best for well-defined TypeScript builds like an MVP, a migration or a specific module.
- Scope locked upfront
- Milestone acceptance
- Predictable budget

Compare ways to hire TypeScript developers

Pick the model that matches how you work. Switch between them as your TypeScript project evolves — no multi-year contracts.

Compare ways to hire TypeScript developers
Engagement	Dedicated developer (popular)	Hourly / time & materials	Fixed-price milestones
Best for	Ongoing products & long-term roadmaps	Exploratory or variable-load work	Well-scoped MVPs, modules & migrations
Billing	Monthly, full-time (~160 hrs)	Per billable hour	Per accepted milestone
Commitment	Month-to-month, no lock-in	No minimum commitment	Scope locked up front
Flexibility	Scale up or down monthly	Highest — pay for what you use	Lowest — defined deliverables
You manage	Day-to-day in your tools	Weekly priorities	Acceptance criteria only
Reporting	Daily standups	Weekly timesheets	Milestone demos

Hire TypeScript developers from anywhere

Our New Delhi team partners with founders and engineering leaders across eight key markets, with enough daily timezone overlap to feel in-house.

Hire TypeScript developers in India
Full working-day overlap
Krapton is an on-shore TypeScript studio in New Delhi. Hire TypeScript developers in India and get senior, full-time engineers at roughly 50–70% of US/UK rates — with English-fluent communication and IST working hours.
Hire TypeScript developers in USA
4–6 hours of daily overlap — your morning, our evening
Hire dedicated TypeScript developers for your USA team without the local price tag. US companies work with our vetted, full-time TypeScript engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire TypeScript developers in UK
Overlap across your whole morning (our afternoon)
Hire dedicated TypeScript developers for your UK team without the local price tag. UK companies work with our vetted, full-time TypeScript engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire TypeScript developers in Canada
4–6 hours of daily overlap with ET and PT
Hire dedicated TypeScript developers for your Canada team without the local price tag. Canada companies work with our vetted, full-time TypeScript engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire TypeScript developers in Australia
Strong overlap — our morning is your afternoon
Hire dedicated TypeScript developers for your Australia team without the local price tag. Australia companies work with our vetted, full-time TypeScript engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire TypeScript developers in UAE
Near-complete overlap — just 90 minutes apart
Hire dedicated TypeScript developers for your UAE team without the local price tag. UAE companies work with our vetted, full-time TypeScript engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire TypeScript developers in Germany
Overlap through your morning and our afternoon (DACH)
Hire dedicated TypeScript developers for your Germany team without the local price tag. Germany companies work with our vetted, full-time TypeScript engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire TypeScript developers in Singapore
Near-complete overlap — only 2.5 hours apart
Hire dedicated TypeScript developers for your Singapore team without the local price tag. Singapore companies work with our vetted, full-time TypeScript engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.

TypeScript developer rates

Hire dedicated TypeScript developers from Krapton's team in India. Rates below are blended hourly bands; dedicated developers are billed monthly with no lock-in.

Junior (1–3 yrs)
Feature work under senior review
$18–$24/hr
Mid-level (3–6 yrs)
Owns modules end-to-end
$24–$30/hr
Senior / lead (6+ yrs)
Architecture, reviews, mentoring
$30–$35/hr

Why teams hire TypeScript developers from Krapton

Projects delivered: 50+
In-house engineers: 60+
Average client rating: 4.8/5
On-time delivery: 98%

Vetted, full-time engineers
Every TypeScript developer is a full-time, in-house Krapton engineer — never a freelancer or subcontractor.
Ready in 24 hours
Shortlisted TypeScript CVs within a business day and an onboarded developer within two.
Clear hourly rates
Published hourly bands by seniority, billed monthly, with no lock-in.
Your IP, your repos
Full IP assignment, free NDA on request, and all code in your accounts from day one.
30-day replacement
Not the right fit? Free replacement within five business days in the first 30 days.
Real timezone overlap
4–6 hours of daily overlap with US, UK, EU, UAE and AU teams for live collaboration.

Most TypeScript engagements also benefit from these Krapton services. Browse full offerings on the services page.

Hire TypeScript developer

Free consultation · No commitment

Hiring TypeScript developers — answered

Practical answers to the questions CTOs and founders ask us most often before they hire.

How quickly can I hire a TypeScript developer from Krapton?

Within 24 hours of the initial call. We keep a bench of pre-vetted TypeScript engineers, so once you confirm the brief we line up two or three shortlisted CVs within a business day and can onboard the selected developer within two.

How much does it cost to hire a dedicated TypeScript developer from India?

Blended hourly rates for senior TypeScript engineers typically fall in the $18–$35 USD range depending on seniority and engagement length. Dedicated developers are billed monthly with no lock-in.

Are your TypeScript developers full-time employees or freelancers?

Every TypeScript developer you hire through Krapton is a full-time, in-house engineer — we never subcontract to freelancers or agencies. That means consistent code quality, signed NDAs, and a single point of accountability for your project.

Who owns the code and IP my TypeScript developers write?

You do — 100%. IP assignment and confidentiality are covered by the contract and a free NDA on request. All code lives in your repositories, on your infrastructure, under your accounts from day one.

What skills matter most when I hire TypeScript developers?

Type modeling and boundary validation matter more than knowing obscure syntax. A strong candidate designs discriminated unions, narrows unknown data safely, explains why as casts are risky, and configures tsconfig for the actual runtime. Ask them to type a function that handles several API response shapes, then to explain how they would migrate a JavaScript folder without blocking other developers.

Is TypeScript worth it over plain JavaScript for a small team?

Yes for most products that will live longer than a prototype. Even a two-person team benefits from editor autocomplete, safe renames and compile-time errors on API changes. The cost is a build step and some learning, both small with modern tooling. Very short-lived scripts or experiments can stay in JavaScript, optionally with JSDoc and checkJs for lightweight checking.

Can we migrate from JavaScript to TypeScript gradually?

Yes, and gradual is the safer route. With allowJs enabled, TypeScript and JavaScript files coexist, so the team converts leaf utilities first, then shared modules, then entry points. Strictness rises in steps, starting with noImplicitAny and strictNullChecks. CI tracks the error count so it only goes down, and new files must be TypeScript from the first day of the migration.

Does TypeScript make an application more secure?

Only indirectly; types disappear at runtime, so they cannot stop malicious input on their own. What TypeScript does well is make validation hard to forget when combined with schema parsing at every boundary: request bodies, query strings, webhooks and environment variables. Security still depends on runtime validation, output encoding, dependency auditing with npm audit or similar tools, and lint rules that flag unsafe patterns.

How should we handle TypeScript version upgrades?

Upgrade deliberately, on a branch with CI, and never as a side effect of a dependency bump. TypeScript does not follow strict semantic versioning, so minor releases can introduce new errors through stricter inference or library type changes. Pin the exact version, read each release’s breaking changes section, and upgrade typescript-eslint alongside. Plan separately for the native TypeScript 7 compiler, testing editor plugins and build tools first.

Keep exploring

More ways to plan your TypeScript build and team with Krapton.

Ready to build with TypeScript?

Get a free 30-minute consultation with our TypeScript team. Clear roadmap, transparent pricing, no obligation.

Hire a developer Schedule a call

Free NDA on request
Response within 24 hours
Certified TypeScript developers
Flexible engagement models
US, UK, UAE & India clients served

Hire a TypeScript developer

A cleaner way to hire TypeScript developers

Types that match runtime reality

Strict mode without stopping delivery

Shared types across the stack

Readable types, fast builds

Why TypeScript?

Static typing

Enhanced tooling

Type inference

Compatibility with JavaScript

Object-oriented programming

Declaration files

What you can build with TypeScript

Type-safe full-stack apps

Published npm libraries

Typed API backends

Design system components

Internal CLIs and tooling

Serverless and edge functions

Making TypeScript earn its keep

TypeScript in action

What our TypeScript developers know

What our TypeScript developers go deep on

Common TypeScript projects we deliver

Migrating a JavaScript codebase to TypeScript

Eliminating runtime errors from API drift

Speeding up slow type checking

Upgrading TypeScript across a monorepo

TypeScript solutions by industry

Fintech

B2B SaaS

Healthcare

E-commerce

TypeScript vs JavaScript with JSDoc

How to hire TypeScript developers in 5 steps

Share your brief

Review matched profiles

Interview & test

Onboard securely

Scale or replace

More frontend technologies

Three ways to hire TypeScript developers

Dedicated developer

Hourly / time & materials

Fixed-price milestones

Compare ways to hire TypeScript developers

Hire TypeScript developers from anywhere

Hire TypeScript developers in India

Hire TypeScript developers in USA

Hire TypeScript developers in UK

Hire TypeScript developers in Canada

Hire TypeScript developers in Australia

Hire TypeScript developers in UAE

Hire TypeScript developers in Germany

Hire TypeScript developers in Singapore

TypeScript developer rates

Why teams hire TypeScript developers from Krapton

Vetted, full-time engineers

Ready in 24 hours

Clear hourly rates

Your IP, your repos

30-day replacement

Real timezone overlap

Services that pair well with TypeScript

Website development

UI / UX

Custom software services