Hire Mobile App Developer · London

Hire a Mobile App Developer
in London

iOS + Android from one engineer. TestFlight in three weeks.

Looking to hire a mobile app developer in London? RN seniors in London are $220–300K. We ship both stores on a single flat-price engagement — usually React Native via Expo, native when the use case calls for it.

London · Mobile App Developer

Hire local, year 1

~$232K

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

Engage us

$10,000+

3–6 weeks to TestFlight to first deploy.

7d

Start vs 60d hire

0%

Equity, signing, severance risk

The local read

Why hiring a mobile app developer in London is hard

London founders have access to deep fintech and gov-tech talent but the hiring cycle is brutal. Senior offers in the City clear £100K base plus equity that competes with Revolut and Wise. Local dev shops mostly serve enterprise — slow procurement, multi-quarter contracts, agency-of-record billing.

Different model: one senior engineer ships your build in two weeks, four-to-five-hour overlap with our working hours, billed in USD. Open Banking via TrueLayer or GoCardless for fintech. Next.js + NestJS + Postgres for SaaS. Flat-price quote in 24 hours. Code in your GitHub from commit one.

A senior mobile app developer here is a ~$232K year-one outlay after benefits, payroll tax, and the 60–90 day search. We're a $10,000+ flat engagement that starts inside seven days.

Did you know · London

London is the third-largest tech hub on earth — after the Bay Area and Beijing.

Time zone

--:--:--

GMT

GMT/BST. We overlap with your morning, you ship by your evening. Async workflow built for the gap.

Sectors in London

FintechAIClimate techCryptoB2B SaaS

Why this beats a hire

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

One senior mobile app 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 London who need to ship before the next round closes.

Two paths in London

Hire a mobile app 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

~$232Kyear one

One senior mobile app developer in London, 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

$10,000+flat

Quoted after a 30-minute call · 3–6 weeks to TestFlight

  • 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 mobile app developer, owned end to end on a flat-price engagement. No coordination overhead, no junior-on-the-bench, no estimation theatre.

  • Cross-platform RN with Expo prebuild for native modules when needed
  • Push notifications, deep links, OTA updates via Expo Updates
  • Store submission (Apple Developer + Play Console) handled end to end
  • Offline-first storage where it matters (TanStack Query persist or RxDB)
  • Crash reporting, analytics, performance instrumentation wired correctly

Stack we use

React Native (Expo)TypeScriptTamagui / NativeWindSupabaseSentryEAS Build & Submit

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

Mobile App Developer work we've shipped

Real founders, real shipped product

Instead of hiring one mobile app developer who needs to ramp, you get senior work like this — from founders in London we've actually shipped with.

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FAQ

About hiring vs engaging in London

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.

React Native or native?

+
RN by default — 90% of features are identical and you ship to both stores at once. Native if you have hard requirements (live activities, complex camera, low-level audio).

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?

+
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 London?

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

--:--:--

GMT

GMT/BST. We overlap with your morning, you ship by your evening. Async workflow built for the gap.

Valery Satsura

Valery Satsura

CEO · Start Matter · usually replies in minutes

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

Mobile App 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.