Mikalai SiliukMS Development
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Mobile engineering services

Mobile app development services —
Flutter, iOS, Android.

Senior, independent mobile engineering for founders, agencies, and scale-ups. End-to-end delivery from architecture to App Store release, with trusted partners plugged in for design, backend, and QA when the scope calls for it.

10+
Years of experience
100+
Projects shipped
iOS · Android · Flutter
Platforms
01

What I do

Pick the engagement that fits your stage — or let me build the full product end-to-end.

🚀

Mobile MVP Development

Turn a validated idea into a production-ready mobile app in 2–4 weeks with AI-augmented delivery. Architecture, CI/CD, analytics, subscriptions wired in from day one.

Good fit if you're a founder or founding team shipping your first mobile product.

📱

Flutter App Development

A single codebase that ships to App Store and Google Play without feeling like a compromise. Native-quality UI, platform integrations, performance.

Good fit if you want cross-platform reach without maintaining two codebases.

🍎

Native iOS & Android Development

When platform fidelity, background behavior, or SDK depth matter more than code sharing — I ship native Swift (iOS) and Kotlin (Android) apps.

Good fit if your product depends on platform-specific capabilities.

🧱

Mobile App Audit & Refactoring

An honest assessment of an existing mobile codebase — architecture, performance, release process, tech debt — with a prioritized plan you can act on.

Good fit if you inherited a mobile app or shipping velocity has dropped.

📦

App Store & Google Play Release

Owning the release pipeline end-to-end: store listings, privacy manifests, review responses, phased rollouts, and post-launch monitoring.

Good fit if you need a mobile lead who owns the "last 10%" to public launch.

🤝

White-label Mobile Dev for Agencies

A senior mobile contractor you can put in front of your clients. NDA-friendly, predictable delivery cadence, clean handover.

Good fit if you're an agency needing senior mobile capacity without a permanent hire.

AI-augmented MVP delivery

Same senior mobile delivery, accelerated with Claude Code, Cursor, Figma MCP, and AI-powered PR audits. Typical MVP in 2–4 weeks instead of 6–12, without lowering the quality bar.

Good fit if you're a founder who wants speed without paying the vibe-coder tax.

02

How we'll work

A predictable rhythm from idea to shipped product — and beyond. Each step shows what I own and where partners plug in.

1

Discovery

We align on the product vision, priorities, and scope. I prepare an architecture proposal, risk map, and milestones.

What I own
Architecture, scope, risk map, milestone plan.
Partners, if needed
Product designer for UX audit, if needed.
2

MVP build

Clean architecture, CI/CD from day one, analytics and feature flags wired in. Weekly builds you can test.

What I own
Mobile codebase, backend integration, release-readiness.
Partners, if needed
Designer for UI system, backend engineer for heavy cloud work.
3

Ship to stores

App Store Connect and Google Play Console setup, store listings, privacy manifests, review responses.

What I own
Full release pipeline, both stores.
Partners, if needed
Copywriter for listings, motion designer for preview videos.
4

Scale & iterate

Crash-free rates, performance monitoring, A/B tests, paywalls, content ops — whatever helps the product grow.

What I own
Release cadence, experimentation instrumentation, monitoring.
Partners, if needed
Growth marketer for paid acquisition, QA lead for regression coverage.
03

Technologies I work with

Mobile
Flutter (iOS / Android)Native Android — KotlinNative iOS — Swift
Backend & Infrastructure
FirebaseCloud Functions (JavaScript / TypeScript)REST APIs
Payments & Subscriptions
StripeRevenueCatAdaptyQonversionApple In-App PurchasesGoogle Play Billing
Analytics & Growth
Firebase AnalyticsAmplitudeMixpanelAppsFlyer
AI & LLM features
OpenAI APIVoice assistantsOn-device ML (Core ML, ML Kit)
04

Frequently asked

The questions I hear on almost every first call.

Do you work solo or with a team?
Solo-led by default — I personally lead architecture, development, and release. When a project needs design systems, heavy backend, or dedicated QA, I bring in vetted partners I've shipped with before. You always talk directly to me.
What's your typical engagement?
Fixed-scope projects (typically 2–6 weeks for an AI-augmented MVP — at the lower end for validation MVPs, longer for production-grade scope) or monthly retainers for ongoing work. I don't take hourly ticket-taking engagements — they aren't a good fit for senior delivery.
Can you join an existing codebase?
Yes. I've taken over Flutter, native iOS, and native Android codebases from internal teams, agencies, and other freelancers. An initial audit comes first so we both see the real starting point.
How do you handle NDAs?
NDA by default. Many of my best projects are under NDA, which is why the public portfolio is selective. Happy to sign before we discuss anything specific.
How do you price projects?
Fixed scope → fixed price with defined milestones. Retainers → monthly capacity blocks. Audits and architecture reviews → fixed fee with a written deliverable. No hourly time-sheets.
What happens after launch?
I stay on for post-launch stabilization (typically 2–4 weeks), then either transition into a maintenance retainer or hand the codebase over to your in-house team with documentation, architecture notes, and a runbook.
Do you work with teams outside your timezone?
Yes. I work with clients across EU, UK, and US timezones. There's always a shared sync window each day.
What if the project needs to grow beyond one person?
That's when the partner network kicks in. For some projects, I stay as tech lead and plug in a second mobile engineer, a backend engineer, or a designer. For others, I help you hire in-house and phase out.