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HIRE MOBILE DEVELOPER

Senior mobile engineer with 8+ years shipping production Android and cross-platform apps at Rakuten and U.S. Bank. Available for fractional mobile lead roles, architecture audits, and full delivery — remote, worldwide.

Last updated: May 2026

I work seamlessly with Denver and MST timezone teams. Proven track record with clients across USA and globally.

Also available for on-site collaboration in nearby cities: Boulder, Colorado Springs, Fort Collins.

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Available in DenverMST timezone overlap
01

Why hire me

8+ years production experience

Shipped Android at Rakuten-scale e-commerce and U.S. Bank enterprise banking, plus cross-platform Flutter apps to App Store and Google Play. Deep expertise in native Kotlin, Flutter, MVVM, MVI, and multi-module architecture.

Native + cross-platform

I know exactly when native Kotlin delivers uncompromising performance and when Flutter or KMP cuts delivery time in half without sacrificing quality. Native modules for platform-specific capabilities; shared layers for business logic.

Remote-native collaboration

Structured daily standups, async updates via Slack/Linear, and weekly video check-ins when needed. Based in Japan, collaborating with teams across APAC, EU, and US.

Full-stack capability

Beyond mobile — Next.js web delivery, Firebase/Supabase backends, RevenueCat subscriptions, push notifications, and ASO/SEO growth strategy. One partner for your entire product stack.

02

What you get

  • Fractional Android lead — architecture, code review, and sprint planning
  • Native Android (Kotlin) with MVVM, Redux/MVI, Dagger/Hilt, and multi-module structure
  • Cross-platform delivery with Flutter or Kotlin Multiplatform
  • Production diagnostics — crash/ANR analysis, memory profiling, and device-specific fixes
  • CI/CD setup (Bitrise, GitHub Actions) and release pipeline automation
03

How it works

Discovery

Stakeholder interviews to align on product vision, followed by a deep codebase audit covering architecture, test coverage, and build times. I then recommend platform selection — native Android, Flutter, or Kotlin Multiplatform — based on your timeline, existing team shape, performance requirements, and long-term maintenance capacity.

Architecture

Design of modular project structure, dependency injection strategy using Dagger or Hilt, state management patterns such as MVVM or MVI, and API contract design with strong typing. All major decisions are documented in an Architecture Decision Record to preserve context for future team members.

Development

Sprint-based delivery with structured PR templates, mandatory code review, and weekly demo sessions. Native modules are used for platform-specific capabilities like camera or Bluetooth, while shared UI and business logic layers eliminate duplication across iOS and Android.

QA & Release

Comprehensive automated testing including unit tests, integration tests, and screenshot testing to prevent visual regressions. CI/CD pipelines on Bitrise or GitHub Actions manage staging builds, staged rollouts, and automated crash monitoring integration for production confidence.

Growth

Post-launch ASO metadata optimization, store asset preparation including screenshots and preview videos, analytics instrumentation with Firebase or Amplitude, and a dedicated support window to stabilize crash rates and user retention metrics.

04

Recent delivery

Deckbase

Learn with decks, FSRS spaced repetition, rich templates, and AI-assisted card creation.

Case study

LoA

Mindful app usage: pause before distracting apps with intention, gratitude, and affirmations.

Case study

TaskGate

Break impulsive opens: complete a micro-task before accessing blocked apps.

Case study

EverJournal

AI-powered storytelling for your life — reflect and remember what matters.

Case study
05

Engagement

Fractional Lead

2–3 days per week embedded with your team. Ideal for ongoing roadmap delivery, architecture decisions, and mentoring while you scale.

Project-Based Delivery

Fixed-scope sprints (4–8 weeks) with clear milestones. Best for MVPs, feature launches, and greenfield builds.

Advisory Retainer

Architecture review, code audits, and technical strategy on a monthly basis. Perfect for teams that need senior oversight without full-time commitment.

Pricing reflects Denver and North America market rates. Real-time collaboration in MST timezone.

05

Trust

8+

Years experience

4+

Apps shipped

24h

Response time

1 week

Paid trial

Trusted at

Rakuten
U.S. Bank
06

FAQ

Why should I hire you as a mobile developer?

I bring 8+ years shipping production Android at Rakuten and U.S. Bank, plus cross-platform Flutter apps to App Store and Google Play. Expertise in MVVM, MVI, multi-module architecture, Dagger/Hilt, Riverpod, and production diagnostics.

Do you work remotely with international teams?

Yes. I work remote-native, timezone-flexible, and async-first. Based in Japan, I collaborate with teams across APAC, EU, and US through structured standups and Slack/Linear updates.

What engagement models do you offer?

Fractional mobile lead (2-3 days/week), project-based delivery (4-8 week sprints), and advisory retainers for architecture review and code audits. All engagements start with a one-week paid trial.

Can you handle full-stack delivery beyond mobile?

Yes. In addition to native Android and Flutter cross-platform apps, I deliver Next.js web companions, Firebase/Supabase backends, RevenueCat subscriptions, and ASO/SEO growth strategy.

What are your typical rates?

Fractional lead roles start at $8,000/month for 2-3 days/week. Project-based delivery is scoped per sprint (typically $12,000–$24,000 for a 6-8 week engagement). Advisory retainers for architecture review and code audits start at $3,000/month. All engagements begin with a one-week paid trial.

How soon can you start?

Typically within 1–2 weeks of contract signature. I keep a limited client roster to ensure deep focus, so availability depends on current sprint commitments. The fastest path is booking a call to discuss scope and timeline.

Can you work in Denver's timezone?

Yes, I fully support meetings and real-time collaboration in the MST timezone. Also available in nearby cities including Boulder, Colorado Springs, Fort Collins. I also use async communication for maximum flexibility.

Are your rates aligned with Denver market rates?

My rates reflect Denver and North America market standards while maintaining global flexibility. Monthly retainers, hourly, and project-based engagements are all available.

07

Contact

Ready to hire?

Tell me about your mobile project, timeline, and team. I reply within 24 hours.

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