Hire TypeScript Developer · Boston

Hire a TypeScript Developer
in Boston

End-to-end type safety. Not just .ts file extensions.

Looking for a TypeScript developer in Boston? Most engineers here will write TS that's technically TS. We ship type-safe builds where the compiler is the first line of defense — strict mode, no any leaks, generics where they earn their keep.

Boston · TypeScript Developer

Hire local, year 1

~$363K

Base + benefits + payroll tax. 60–90 day search.

Engage us

$6,000+

2–4 weeks to first deploy.

7d

Start vs 60d hire

0%

Equity, signing, severance risk

The local read

Why hiring a typescript developer in Boston is hard

Boston founders have access to the best deep-tech talent in the country and almost none of it is hireable at seed stage. Biotechs pay above market for ML engineers. Cambridge robotics shops pay close to that for ROS 2 specialists. The local agency option is mostly enterprise consulting with multi-quarter contracts.

We're not enterprise consulting. One senior engineer owns the build, Eastern Time, overlap with your MIT advisors and Boston-based investors. FHIR or HL7 for healthtech. PyTorch and Hugging Face for ML features. Next.js for the SaaS layer. Flat-price quote in 24 hours. Code in your GitHub from commit one.

A senior typescript developer here is a ~$363K year-one outlay after benefits, payroll tax, and the 60–90 day search. We're a $6,000+ flat engagement that starts inside seven days.

Did you know · Boston

Boston has more universities per square mile than any other US city — 50+ in the metro area.

Time zone

--:--:--

ET

Eastern Time. Overlap with you, your investors at General Catalyst and NEA Boston, and the academic calendar that affects half your hires.

Sectors in Boston

Biotech toolsRoboticsB2B SaaSHealthtechClimate tech

Why this beats a hire

One AI-native engineer.
The output of a team.

One senior typescript developer plus AI agents now ships what four engineers used to. Same code quality, half the cost, three-week timelines instead of three months. Built for pre-seed to Series A founders in Boston who need to ship before the next round closes.

Two paths in Boston

Hire a typescript developer, or engage us

Same outcome, different routes. The local hire path takes 60–90 days and locks $250K+ for year one. We're a flat-price engagement that starts inside seven days.

Path A · Hire local

~$363Kyear one

One senior typescript developer in Boston, fully loaded

  • ·60–90 day search through recruiters and inbound
  • ·Equity, signing bonus, potential relocation
  • ·Full-time only — no flexibility on capacity
  • ·90-day probation of unknown output
  • ·Bad fit means severance and a fresh recruiting cycle

Path B · Engage Start Matter

$6,000+flat

Quoted after a 30-minute call · 2–4 weeks

  • Senior engineer starts inside seven days
  • No equity, no signing bonus, no recruiting fee
  • Flexible capacity — scope up or down between phases
  • First deploy in two weeks — shippable output, not a slide deck
  • Hand off cleanly when you hire your team — your code, your repo
Skip path A · Start path BDiscovery call free · quote in 24 hours

The work, concretely

What we'd own day to day

The same scope you'd hand to a salaried typescript developer, owned end to end on a flat-price engagement. No coordination overhead, no junior-on-the-bench, no estimation theatre.

  • Strict-mode TS with no implicit any, no @ts-ignore creep
  • Schema-first runtime validation (Zod) wired to compile-time types
  • Shared types between frontend and backend via tRPC or generated clients
  • Domain types modeled with discriminated unions — illegal states unrepresentable
  • CI checks that fail on type regressions, not just runtime errors

Stack we use

TypeScript (strict)Node.jstRPCZodDrizzle ORMVitest

Defaults — we deviate when the project demands it, not because something is fashionable.

FAQ

About hiring vs engaging in Boston

How fast can you start?

+
Most engagements begin within seven days of the first call. There's no recruiter pipeline, no notice period, no relocation timeline.

Do you do TS migrations from JS?

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Yes — incremental, file-by-file with allowJs and a strictness ramp. We don't ship a half-converted codebase.

Is this a full-time replacement?

+
No — we're a senior engineer on a flat-price engagement. For most pre-seed and seed-stage products, that ships more than a salaried hire would in the same window. When you outgrow it, we hand off cleanly to the team you hire.

Who owns the code?

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You do, from commit one. Repo in your GitHub, infra in your cloud account. When you do hire someone, they onboard onto your code, not ours.

Got a question about working with us from Boston?

Ask me anything.
Right now.

Real chat. Real answers from our FAQ. If I don't have a clean match, I'll email you back within a day.

Time zone

--:--:--

ET

Eastern Time. Overlap with you, your investors at General Catalyst and NEA Boston, and the academic calendar that affects half your hires.

Valery Satsura

Valery Satsura

CEO · Start Matter · usually replies in minutes

Hey, I'm Valery. Ask me anything about working with us from Boston.

TypeScript Developer elsewhere

Same role, other cities

Ready when you are

Ship instead of hire.

30-minute call → flat-price quote in 24 hours → first deploy inside two weeks. No equity ask, no notice period, no recruiting fee.