TypeScript Development Services

TypeScript done as a real safety net, not decoration — strict types that actually catch bugs before they ship, on a codebase your team can trust.

Frontend

TypeScript Development Services

req/s, zero deadlocks
15Kreq/s, zero deadlocks
double-charges in production
0double-charges in production
production systems shipped
10+production systems shipped
years building for clients
7+years building for clients
Sound familiar

Signs you need this now.

A codebase with `.ts` file extensions and `any` scattered everywhere gets none of TypeScript's real benefit. The value of TypeScript comes from strict, deliberate typing that catches real bugs at compile time, which requires it to be set up and used correctly, not just turned on.

01

TypeScript is technically in use but not actually catching bugs

`any` is everywhere, strict mode is off, and the type system is not preventing the mistakes it is supposed to prevent. The team is paying TypeScript's complexity cost without getting its safety benefit.

02

Migrating a large JavaScript codebase to TypeScript feels overwhelming

Nobody wants to stop feature work for weeks to convert everything at once, but a partial, disorganized migration tends to stall out. This needs a real incremental plan, not an all-or-nothing attempt.

03

Type errors are so noisy that people stop paying attention to them

When there are hundreds of type errors, real problems get lost in the noise, and the team starts treating TypeScript as an obstacle rather than a safety net.

Scope

What you get.

Strict mode configured and actually enforced

TypeScript's strict settings turned on deliberately, with a real plan for the codebase to comply, not left off to avoid the noise.

A practical migration plan for existing JavaScript

An incremental, file-by-file or module-by-module path that does not require pausing feature work.

Shared types across frontend and backend where it matters

A single source of truth for data shapes that both ends of the stack rely on, so they cannot silently drift apart.

Generic and utility types that reduce duplication

Real type-level tooling applied where it saves meaningful repetition, not added for its own sake.

CI checks that keep type safety from regressing

Type checking wired into your build/CI pipeline so a broken type cannot get merged unnoticed.

How it works

Four steps, no mystery.

01

Quick scoping call

A short call (or async over WhatsApp) to understand what you're working with and what "done" actually looks like for you.

02

Fixed scope, no surprises

A clear written plan of what's included and how long it takes, before any work starts.

03

The actual work

Progress you can see, not a black box. You get updates as milestones land, not just a status report at the end.

04

Handover

Everything documented and handed over cleanly, with a walkthrough so your team isn't stuck waiting on me for routine changes.

Related

You might also need.

Questions

Frequently asked.

Usually yes for anything actively maintained by more than one person, but the migration should be incremental and scoped realistically — we will give an honest read on the effort versus benefit for your specific codebase.

Start here

Tell me what you're dealing with.

Send a message and get a real reply within 24 hours, not an automated sequence.

Prefer email? info@hasnain.io

Or WhatsApp directly, same link as above