Hire Vetted Mobile App Developers by Specialization
Hire iOS, Android, Flutter, React Native, AI-mobile, and AR/VR specialists from Fulminous. 48-hour onboarding. 7-day no-risk trial. Pre-vetted talent with 4+ years production experience. From $35/hour. Pick exactly the tech expertise you need.
⚡ Mobile Specialists Available
Live · 24 readyHire By Tech Specialization — Not Generic Mobile Devs
Pick the exact mobile tech expertise you need. Eight specialized roles, each with vetted production experience.
iOS Native Developer
Swift 6, SwiftUI, UIKit, Combine, async/await. App Store deployment, App Review experience. CoreML for on-device AI.
Android Native Developer
Kotlin 2.0+, Jetpack Compose, Coroutines/Flow, Material 3. Google Play deployment, ML Kit integration for on-device AI.
Flutter Developer
Flutter 3+, Dart, Riverpod/Bloc state management. Custom platform channels, native plugin development, Firebase integration.
React Native Developer
React Native New Architecture, Hermes engine, TurboModules, Fabric renderer. Expo Router, EAS Build, OTA updates.
AI-Mobile Integration Specialist
GPT-5, Claude Opus 4.7, Gemini integration. On-device ML (CoreML, ML Kit). LLM cost optimisation, streaming, prompt engineering.
AR/VR Mobile Developer
ARKit 7 (iOS), ARCore (Android), RealityKit, Reality Composer. Computer vision, 3D content integration, gesture recognition.
Full-Stack Mobile Developer
Mobile + backend combined: iOS/Android + Node.js/Python/GraphQL. Cloud deployment (AWS, Azure, GCP). Database design.
Mobile DevOps Engineer
Fastlane, Bitrise, GitHub Actions. App Store Connect API, Firebase App Distribution, automated testing, beta deployment.
Six Reasons Companies Choose Fulminous Talent
Hiring mobile developers is too important to leave to freelance marketplaces. Here's what makes the Fulminous talent platform different.
48-Hour Onboarding Guarantee
Most placements happen within 48 hours of brief. We pre-vet 200+ mobile developers continuously so the moment you brief us we have matched profiles ready. Specialist roles (Swift 6 senior, AR/VR, AI integration) typically take 5-7 working days.
- Matched profiles in 24 hours
- Same-day contract signing
- Next-business-day start
Rigorous Vetting
Every developer passes 5-stage vetting: technical assessment, code review, portfolio audit, reference checks, and trial project. Less than 8% pass.
7-Day Trial
Not a fit in week 1? We replace or refund. No questions asked.
Backup Guarantee
Developer unavailable? Instant bench replacement.
UK / US Compliance Trained
GDPR, HIPAA, PCI DSS, OWASP Mobile Top 10, WCAG 2.2 AA. App Store Review and Google Play Policies. Sector compliance available on request.
Senior Architect Oversight on Every Engagement
Every hired developer reports to a senior architect at Fulminous. Code reviews, architecture guidance, and quality assurance built into every engagement. No solo-developer risk. No knowledge silos.
- Architect-led code reviews
- Quality gates on every sprint
- Knowledge transfer documentation
2026 Mobile Developer Hourly & Monthly Rates
Honest USD rates across seniority levels. No hidden fees. No platform commissions. Pay for the developer's time and expertise — nothing else.
Complete Mobile Tech Stack in Our Talent Pool
Every technology your mobile app needs — covered by vetted specialists ready to onboard in 48 hours.
iOS Native
- Swift 6
- SwiftUI
- UIKit + Combine
- CoreML / Create ML
- ARKit 7
- App Clips + Live Activities
Android Native
- Kotlin 2.0+
- Jetpack Compose
- Coroutines / Flow
- ML Kit / TensorFlow Lite
- ARCore
- Material 3 Design
Cross-Platform
- Flutter 3+ / Dart
- React Native New Arch
- Expo + EAS Build
- .NET MAUI
- Kotlin Multiplatform
- Capacitor / Ionic
AI & LLMs
- OpenAI GPT-5 API
- Anthropic Claude Opus
- Google Gemini
- Self-hosted Llama 3
- Voice + Vision AI
- LLM cost optimisation
Backend & APIs
- Node.js / NestJS
- Python FastAPI
- GraphQL / REST
- Firebase / Supabase
- WebSockets
- tRPC
Cloud & DevOps
- AWS / Azure / GCP
- Fastlane / Bitrise
- GitHub Actions
- Firebase App Distribution
- Sentry / Crashlytics
- Datadog
Security & Compliance
- OWASP Mobile Top 10
- OAuth 2.0 / OIDC
- Biometric Auth
- End-to-end Encryption
- UK GDPR / HIPAA / PCI DSS
- WCAG 2.2 AA
Design & UX
- Figma / Sketch
- Design Systems
- iOS HIG + Material 3
- Motion + Animations
- Accessibility audits
- User research
From Brief to Onboarded — In 48 Hours
Our streamlined 6-step hiring process designed for speed without sacrificing quality.
Brief Us
Free 30-min call to understand your tech needs, timeline, budget
Matched Profiles
2-3 vetted developer profiles within 24 hours, with rates & portfolio
Interview
Video interview with shortlisted developers. Optional tech assessment
Contract
Sign UK or US-law contracts with NDA, IP transfer, clear terms
Onboard
Developer joins your tooling (Jira, Slack, GitHub) within 48-72 hours
Trial Week
7-day no-risk trial. Replace or refund if not satisfied
Fulminous vs Freelance Marketplaces vs In-House
Honest side-by-side comparison so you can choose the right talent sourcing approach for your needs.
What Clients Say About Hiring With Us
Real feedback from technical leads, engineering managers, and founders who hired mobile developers through Fulminous.
We needed a Swift 6 senior to ship a major iOS update under tight deadline. Fulminous shortlisted three developers in 18 hours, we interviewed and onboarded one within 48 hours, and shipped the update on schedule. The architect oversight caught a memory leak our team missed.
Sarah L.
Engineering Director, B2B SaaS
I've used Toptal, Upwork, and now Fulminous. The difference is night and day. The Flutter developer we hired through Fulminous shipped production code in week one — the previous marketplace devs took 4-6 weeks to get productive. The 7-day trial gave us total confidence.
James T.
CTO, Fintech Startup
Hired a React Native specialist with AI integration experience — exactly the niche skill stack we needed. Architect oversight on every sprint, weekly demos, and clean code with full test coverage. Renewed for another 6 months without question. Best mobile talent partner we've used.
Ben McCabe
CEO, Healthcare App Startup
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Hiring Mobile Developers — FAQs
Common questions technical leads and founders ask about hiring mobile app developers through Fulminous.
You can have a vetted mobile app developer onboarded within 48 hours. We send matched developer profiles within 24 hours of your initial brief, you interview within 24-48 hours, sign contracts on the same day, and the developer starts work the next business day. For specialist roles (Swift 6 senior, Kotlin architect, AI integration, AR/VR) allow 5-7 working days.
You can hire eight specialist mobile developer roles: iOS native (Swift 6, SwiftUI), Android native (Kotlin 2.0+, Jetpack Compose), Flutter (Flutter 3+, Dart), React Native (New Architecture, Expo), Full-stack mobile (mobile + backend), AI-mobile integration (GPT-5, Claude, Gemini), AR/VR mobile (ARKit, ARCore), and Mobile DevOps (Fastlane, Bitrise, GitHub Actions).
Mobile developer hourly rates range from $35 to $120 per hour. Junior: $35-$50/hour. Mid-level: $50-$70/hour. Senior: $70-$95/hour. Specialist (Swift 6 senior, Kotlin architect, AI integration, AR/VR): $95-$120/hour. For monthly engagements, dedicated developers cost $5,500-$13,500 per month. All rates in USD - GBP equivalents available.
Both. Hire a single specialist for staff augmentation or skill gap filling — common for adding iOS expertise to an Android team. Or hire a complete mobile team including architect, 2-4 developers, UX designer, QA engineer, and project manager — for new product builds. Engagements as short as one week available.
Yes. We offer a 7-day no-risk trial for all engagements. If you're not satisfied with the developer's fit, skills, or output in the first 7 days, we replace them at no cost or refund any unspent time. 96% of our trial engagements continue beyond the trial because of our rigorous pre-vetting process.
Our developers specialize in the complete 2026 mobile stack: Swift 6 + SwiftUI for iOS, Kotlin 2.0+ + Jetpack Compose for Android, Flutter 3+ + Dart for cross-platform, React Native + New Architecture, AI integration (GPT-5, Claude Opus 4.7, Gemini), ARKit 7 and ARCore for AR/VR, modern backend (Node.js, Python FastAPI, GraphQL), cloud (AWS, Azure, GCP), and DevOps (Fastlane, Bitrise, GitHub Actions). 4+ years production experience each.
Yes. Developers across multiple time zones: UK/EU developers for European clients, US-time-zone developers for American clients (overlapping EST, CST, MST, PST), and APAC developers for Asian markets. All developers attend your daily stand-ups, use your collaboration tools (Slack, Teams, Jira), and provide named time-zone-matched account managers.
Yes. Every developer is vetted for UK GDPR (EU/UK clients), HIPAA (US healthcare), PCI DSS (fintech), OWASP Mobile Top 10 security, WCAG 2.2 AA accessibility, App Store Review Guidelines, and Google Play Developer Policies. For regulated industries (NHS, FCA, US healthcare, defense) we provide developers with specific sector compliance certifications.
Three critical differences: (1) Vetting — Fulminous developers pass technical assessments, portfolio reviews, and reference checks; marketplaces let anyone create profiles. (2) Backup — if your developer becomes unavailable, we provide instant backup; marketplaces leave you stranded. (3) Oversight — every engagement includes senior architect oversight and named account management; marketplaces are transactional.
Yes. We hire developers by specific tech stack expertise: Swift 6 + SwiftUI specialists for premium iOS apps, Kotlin 2.0+ + Compose specialists for modern Android, Flutter 3+ for cross-platform startups, React Native for cross-platform with web team integration, and stack-blended developers (Swift + Kotlin, Flutter + native). Choose exactly the expertise you need.
Yes. AI integration is a 2026 specialty area. Our AI-mobile specialists have hands-on production experience with GPT-5 API, Anthropic Claude Opus 4.7, Google Gemini, on-device ML (CoreML, ML Kit), and self-hosted LLMs (Llama 3, Mistral). They understand LLM cost optimization, prompt engineering, streaming responses, function calling, and AI safety patterns — critical for mobile apps where API costs can spiral.
Flexible contract terms: 1 week minimum for hourly hires, 1 month minimum for monthly retainers, 3 months minimum for dedicated commitments. Cancellation requires 2 weeks notice. All engagements include UK-law (or US-law) contracts, NDA protection, IP transfer clauses (you own all code), and clear deliverables. No lock-in beyond minimum terms. Extension or scale-up available with 1 week notice.
Hire Your Next Mobile App Developer in 48 Hours
Get matched developer profiles within 24 hours. Onboard in 48 hours. 7-day no-risk trial. From $35/hour USD. Architect oversight included. No platform commissions.
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