TypeScript
Hire TypeScript developers who type the boundary first
Shipped across 3 production systems: real-time trivia, clinical matching, a multi-branch dashboard. They design the edges before the function inside them.
Who you actually hire
4 things that decide this
- 01Senior engineers who have run TypeScript in production across real-time, healthcare, and multi-role systems, not a course certificate and a portfolio project.
- 02You interview every engineer before they join. Nobody is assigned to your team from a profile you never saw.
- 03They treat `any` as a decision to justify, not a shortcut, and they wire validation to your types instead of maintaining two versions of the same shape.
- 04Every line and every type definition is yours from the first commit.
What a TypeScript developer actually does here
TypeScript does not stop bad code. It stops a shape from silently drifting between the parts of your system that depend on it matching.
On Elevent they typed the Vue.js player app and the Node backend together. A score update over Socket.IO cannot silently change shape between server and screen, across events running from 10 to 1,000-plus players. On TrialTriage they typed the NestJS API and the React frontend against the same patient and trial models. A nurse reviewing a match sees the same fields the database actually stored. On ZhoopZhoop's React dashboard they typed the call, quote, and appointment records streaming in over WebSockets from a Python backend. A payload the server changes fails a build instead of a page.
Different stacks, one repeated decision. Define the shape at the API and the database first. Let every function that touches it inherit the type instead of re-declaring it.
What they take off your roadmap
Types at the boundary, not the leaf
The API response and the database row get typed first. A component prop typed in isolation just moves the bug one file over.
Validation wired to the type, not duplicated
A Zod or Joi schema that generates the type, so the runtime check and the compile-time check cannot drift apart from each other.
`any` treated as a decision
Every escape hatch gets a comment saying why. A codebase where `any` appears without explanation is one nobody has audited in a while.
Fewer runtime surprises at 2am
The class of bug that reaches production as an undefined value at midnight is mostly a type the compiler was never asked to check.
- Database rowThe shape starts here
- API boundaryValidated once, typed once
- Shared typesOne source, not duplicated
- Frontend stateInherits, never re-declares
- Compile checkCatches drift before a user does
Type it at the edge and everything downstream inherits the shape. Type it at the leaf and you have decoration, not protection.
TypeScript across real-time, clinical, and multi-role systems
How hiring works
- 01
Tell us what is drifting
A free call about the codebase, the team size, and where bugs keep slipping through review. If the fix is process rather than a hire, you will hear that on the call.
- 02
Meet the engineers
We shortlist people who have typed a real API and database boundary in production, and you interview them yourself, your own way.
- 03
They embed
Your repository, your standups, your pull request process. One of our engineers owns the type coverage on what they touch.
- 04
They hand over
Shared types, validation schemas, and a note on any `any` left behind and why. The first 2 months of support and maintenance are free, with every build.
Stack
Languages and frameworks
- TypeScript
- React
- Vue.js 3
- Next.js
- NestJS
- Node.js
Types and validation
- Zod
- Joi
- Prisma
- TypeORM
- OpenAPI/Swagger
Practices
- Strict mode by default
- Schema-derived types
- Shared type packages
- CI type checks
Bring us the bug that only shows up in production
Show us where a shape changed and nothing caught it until a user did. The scoping call is free, and you will leave it knowing whether the fix is types, tests, or both.
01How is this different from posting the role on a job board?+
You get an engineer who has already typed a production API and database boundary, plus a company accountable if the fit is wrong. A job board hands you a resume and a hiring risk you carry alone. If our engineer is not right, we replace them, which is not a conversation you have with a contractor you found yourself.
02How do we handle it if the engineer does not fit our codebase?+
Say so and we swap them out. You interviewed them yourself, so this is rare, and finding a replacement stays our problem rather than restarting your hiring process.
03What working-hours overlap do we get with our team?+
A daily overlap with your hours, agreed before anyone starts. Type design is a conversation during code review, not a ticket handed off overnight. We fix the window during scoping and it does not move without you.
04Who owns the type definitions and the code?+
All of it, from the first commit. That includes shared type packages, validation schemas, and any tooling they set up. Your next hire inherits a codebase, not a dependency on the person who left.
05What drives the cost of a TypeScript engagement?+
Mostly how far your existing code is from typed. A greenfield build is fast to type correctly from day one. Migrating a large untyped JavaScript codebase, or one with `any` scattered through it, is the work. Scoping calls are free. Every build starts with a fixed-fee Blueprint: an engineer reads your real systems and writes the plan, with a fixed price for each milestone rather than a guess. The fee is credited in full against the build, and if the plan isn't one you'd act on, you don't pay for it.
