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HIRE KOTLIN DEVELOPER
Senior Kotlin engineer shipping production Android apps and cross-platform modules with KMP. Available for native Android delivery, shared business logic, and backend Kotlin — remote, worldwide.
Last updated: May 2026
I work seamlessly with Chicago and CST timezone teams. Proven track record with clients across USA and globally.
Also available for on-site collaboration in nearby cities: Milwaukee, Indianapolis.
START A CONVERSATIONWhy hire me
Production Android delivery
Shipped production Android apps using Kotlin, Jetpack Compose, and modern architecture components. Deep expertise in coroutines, Flow, Room, and Hilt for building maintainable Android codebases.
Kotlin Multiplatform
Shared business logic between Android and iOS using Kotlin Multiplatform and Compose Multiplatform. Reduce duplication while keeping platform-specific UIs native and performant.
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 mobile capability
Beyond Android — KMP shared modules, Next.js web companions, Firebase/Supabase backends, RevenueCat subscriptions, and ASO/SEO growth strategy. One partner for your entire product.
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
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.
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 →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 Chicago and North America market rates. Real-time collaboration in CST timezone.
Trust
8+
Years experience
4+
Apps shipped
24h
Response time
1 week
Paid trial
Trusted at

FAQ
Why should I hire you as a Kotlin developer?
I have shipped production Android apps using Kotlin, Jetpack Compose, and modern architecture components. Expertise in coroutines, Flow, Room, Hilt, and Kotlin Multiplatform for shared business logic.
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 cross-platform delivery beyond Android?
Yes. In addition to native Android and Kotlin development, I deliver cross-platform shared modules with Kotlin Multiplatform, Next.js web companions, Firebase/Supabase backends, 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 Chicago's timezone?
Yes, I fully support meetings and real-time collaboration in the CST timezone. Also available in nearby cities including Milwaukee, Indianapolis. I also use async communication for maximum flexibility.
Are your rates aligned with Chicago market rates?
My rates reflect Chicago and North America market standards while maintaining global flexibility. Monthly retainers, hourly, and project-based engagements are all available.
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