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Senior engineering · Android / Kotlin

Senior Android / Kotlin engineering for production systems.

Native Android engineering: Kotlin, Jetpack Compose, Coroutines, Hilt, and the long-tail device discipline (Pixel 4a → Galaxy S25, Android 10+) most apps under-test for.

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In production
2018+
Senior bench
15+ G6/G9 engineers
Floor
G6+ on client work
Engagement
Outcome-led, not hourly

Why senior, not contractor

Android / Kotlin in production is a different problem than Android / Kotlin on a laptop.

Most Android apps are tested on the engineer's flagship and shipped to a long-tail device fleet that breaks in unexpected ways. Prosigns ships Android with Compose-first UI, Coroutines + Flow for the async layer, performance budgets defended on real low-end devices (Pixel 4a, Galaxy A-series), and the Play Store review discipline that catches Data Safety mismatches before the listing rejection.

Senior floor

G6+ minimum

Bench depth

15+ G6/G9 engineers

In production

2018+

Engagement

Outcome-led SOW

Where Android / Kotlin ships

6 sub-areas, grounded in shipped engagements.

Specific applications of Android / Kotlin we’ve built and operate. Every example below maps to a real engagement, not a bullet on a stack-card.

  • 01

    Jetpack Compose UI

    Compose-first for new screens, Material 3 design system, Compose-Compiler stability metrics in CI, animation performance budgets.

  • 02

    Coroutines + Flow async layer

    Structured concurrency, StateFlow / SharedFlow for UI state, Channel for events. No more LiveData except for migration.

  • 03

    Play Store + Data Safety

    Data Safety section reviewed against runtime, common rejection categories audited pre-submission, staged rollout discipline.

  • 04

    Enterprise + MDM

    Managed Google Play, Android Enterprise / Work Profile, MDM (Intune, Workspace ONE), Android Management API.

  • 05

    Compose Multiplatform

    Compose for iOS / desktop / web where the cross-platform investment is genuinely warranted; not a default but a tool when it fits.

  • 06

    Wear OS + Auto + TV

    Wear OS apps with proper complications, Android Auto for media / messaging, Android TV for media-led brands.

Stack depth

The Android / Kotlin ecosystem, owned.

Frameworks, libraries, and runtime tools the bench has shipped in production. Not a CV-skim, a working depth.

UI

  • Jetpack Compose
  • Material 3
  • Coil
  • Lottie
  • Compose Multiplatform

Async + concurrency

  • Coroutines
  • Flow
  • StateFlow
  • WorkManager
  • Channel

Architecture + DI

  • Hilt
  • Koin
  • ViewModel
  • Navigation Compose
  • Decompose

Data + persistence

  • Room
  • DataStore
  • Realm
  • Ktor Client
  • Retrofit

Quality + ops

  • JUnit 5
  • Roborazzi
  • Maestro
  • Firebase Crashlytics
  • Sentry

Engagement models

Three ways to engage Android / Kotlin engineers.

We don’t bill hourly contractors. Engagements run against outcomes, choose the shape that matches the work.

See engagement models

  1. Fixed-scope

    Defined deliverable, fixed price

    01

    When the deliverable is clear and the scope is bounded: an MVP, a migration, a discrete platform build. Senior engineering against a written outcome, not against a body count.

  2. Embedded squad

    Senior product team, ongoing

    02

    When the work is product-shaped and the cadence is continuous. A senior pod (engineering + design + PM as needed) embedded into your team, with the practice lead co-piloting from HELM.

  3. Managed services

    Steady-state operations

    03

    When the system is running and needs ongoing engineering ownership: operations, SLO defense, release management, security and compliance evidence. Monthly retainer against a published SLA.

Selected work

Android / Kotlin engineering that shipped.

  • Healthcare

    Field-rounding companion app on Android for clinicians.

    Pixel 4aperf budget defended

    Compose-first with Coroutines + Flow. Offline-first sync via Room + WorkManager. Performance budgets enforced on real low-end devices in CI before merge.

    Duration · 8 months

Brief us

Reply < 4 business hours

Have a Android / Kotlin workload? Send a brief.

Five fields. Goes straight to the practice lead, not an SDR. We’ll reply with a senior engineer’s read on fit, scope, and the engagement model that suits the work.

Stack focus
Android / Kotlin · selected

No SDRs · No drip · Senior engineer reply

FAQ

Questions buyers ask.

Everything below also appears in the proposal and the SOW: no surprises after signing.

  • Compose or XML views?

    Compose for new builds. XML interop only where necessary: large legacy fragments, third-party SDKs that haven't shipped Compose support. We don't ship XML-only new builds in 2026.

  • Java or Kotlin?

    Kotlin. Java is fine for legacy maintenance but shouldn't be the choice for new modules. KSP for annotation processing where KAPT is too slow.

  • Is this staff-aug, or is it engineering-led delivery?

    Engineering-led delivery. We don't bill hourly contractors against your JIRA board. Every engagement runs against a defined outcome with a senior engineer accountable from kickoff to operating cutover. If you genuinely need staff-aug, discrete bodies, your management, hourly rates, we'll be honest and route you to a partner that fits.

  • What seniority floor are we talking about?

    G6 minimum (six-plus years in their craft) on every billable hour. Department leads are G9 or G10. We don't flex juniors onto the bench mid-sprint, we don't subcontract to delivery centers, and we don't dilute senior rates with mixed staffing. The bench in the proposal is the bench in production.

  • How does pricing work?

    Three engagement models published at /engagement-models/. Fixed-scope for defined deliverables, embedded squads for ongoing product work, managed services for steady-state operations. Rates depend on seniority, engagement length, and region. Discovery + scoping conversation is free; SOWs are written against deliverables, not bodies.

  • Where are your engineers based?

    Senior-only across Dallas, Doha, Lahore, and Islamabad. We staff against the engagement's needs (timezone, language, regulatory frame), not against arbitrary regional preferences. Most engagements run with a US/EU-aligned core and a follow-the-sun extended bench when the workload warrants it.

  • Will the engineers I see in the proposal be the engineers shipping the work?

    Yes. We name the engineers in the SOW, attach their profiles, and they're on the kickoff. We don't bait-and-switch with senior reviewers and junior execution. If a named engineer needs to roll off the engagement (rare), we surface a replacement from the same seniority tier with explicit handoff.

Talk to a Android / Kotlin lead

Senior Android / Kotlin engineering, accountable from kickoff.

Bring the workload: we’ll bring a senior engineer plus the practice lead most relevant to the work. 30 minutes, no obligation, no junior reps.

Book a discovery callEngagement models