Vetted for
Tech & Soft Skills
Verified for
Remote Performance
Average Job Engagement
13+ Months
97% conversion rate from trial to placement
Assess both the candidate’s hard and soft skills within a month to see if they align with your criteria.
Charges apply only if the talent successfully passes the trial period evaluation.
If the current candidate does not meet expectations, we will promptly find a replacement.
Hire senior experts who match US-level engineers in expertise and work ethic, integrate easily into your team, and deliver high-quality code from day one.
Get to work with your new hire on a risk-free trial. Pay only if you're completely satisfied with the results. We handle all payments, NDA's, and the complexities of remote contracting.
Skip the hassle of sifting through resumes and meet 3 handpicked candidates who are the perfect fit technically and culturally, so you can focus on building great products.
Benefit from personalized support throughout the onboarding process, talent integration, and ongoing performance monitoring with a dedicated account executive and expert talent matcher.
Launch AI-Powered Mobile Features
Our top 1% mobile developers integrate cutting-edge AI capabilities including on-device ML models, generative AI features, and intelligent personalization engines. Build apps with GPT-5.5 integration, computer vision, voice recognition, and predictive analytics that increase user engagement by 65%. Human-vetted engineers from 30,000+ professionals in LATAM and CEE deliver production-ready AI features with Core ML, TensorFlow Lite, and PyTorch Mobile, ensuring your 2025 mobile strategy stays ahead of competitors.
Scale to Millions of Users
Handle explosive growth with mobile architectures built for scale. Our human-vetted engineers from LATAM and CEE design microservices-based backends, implement CDN strategies, optimize database queries, and build caching layers that support 10M+ concurrent users. Leverage AWS Amplify, Firebase, and Kubernetes to reduce latency by 70% and ensure 99.99% uptime. Perfect for startups experiencing rapid growth or enterprises launching consumer-facing apps in 2025.
Achieve GDPR and SOC 2 Compliance
Build secure, compliant mobile apps with end-to-end encryption, biometric authentication, and zero-trust architecture. Our top 1% developers implement GDPR, HIPAA, PCI-DSS, and SOC 2 requirements, conducting security audits and penetration testing. Human-vetted engineers from 30,000+ professionals in LATAM and CEE integrate OAuth 2.0, JWT tokens, and secure key storage, reducing security vulnerabilities by 85% while maintaining seamless UX for global markets across 160+ countries.
Automate CI/CD and DevOps Pipelines
Accelerate release cycles with automated testing, deployment, and monitoring. Our human-vetted mobile engineers from LATAM and CEE build CI/CD pipelines using GitHub Actions, Fastlane, and Bitrise, reducing deployment time from days to hours. Implement automated UI testing with Appium and XCUITest, crash reporting with Firebase Crashlytics, and performance monitoring that catches 95% of bugs pre-production. Save 40-60% on QA costs while shipping features 3x faster in 2025.
Create Seamless Cross-Platform Experiences
Build once, deploy everywhere with React Native, Flutter, and .NET MAUI expertise. Our top 1% developers from 30,000+ human-vetted engineers in LATAM and CEE create native-quality apps with shared codebases, reducing development costs by 50%. Implement platform-specific optimizations, native module integrations, and responsive designs that achieve 4.5+ star ratings. Perfect for startups and enterprises needing iOS and Android apps with consistent UX and faster time-to-market.
Build Real-Time Data Synchronization
Enable offline-first mobile apps with real-time sync capabilities using GraphQL subscriptions, WebSockets, and Firebase Realtime Database. Our human-vetted engineers from LATAM and CEE implement conflict resolution, optimistic updates, and background sync that work seamlessly across poor network conditions. Build collaborative apps, live tracking systems, and messaging platforms that sync data in under 100ms, improving user retention by 45% for 2025's always-connected mobile ecosystem.
Integrate Payment and Fintech APIs
Our top 1% mobile developers build secure payment flows with Stripe, PayPal, Apple Pay, and Google Pay integration. Human-vetted engineers from 30,000+ professionals in LATAM and CEE implement PSD2 compliance, 3D Secure authentication, and fraud detection systems that reduce chargebacks by 60%. Build fintech apps with KYC verification, multi-currency wallets, and blockchain integration, ensuring globally compliant payment processing across 160+ countries in 2025.
Modernize Legacy Mobile Applications
Transform outdated mobile apps into modern, maintainable codebases. Our human-vetted engineers from LATAM and CEE migrate Objective-C to Swift, Java to Kotlin, and monolithic apps to modular architectures. Implement SwiftUI, Jetpack Compose, and modern navigation patterns while maintaining feature parity. Reduce technical debt by 70%, improve app performance by 55%, and enable faster feature development. Trusted by 250+ startups and enterprises like Vodafone for critical modernization projects.
Launch AR and IoT-Connected Apps
Build next-generation mobile experiences with augmented reality and IoT integration. Our top 1% developers from 30,000+ human-vetted engineers in LATAM and CEE create ARKit and ARCore applications, implement BLE and MQTT protocols for IoT devices, and build spatial computing features for Apple Vision Pro. Develop virtual try-on experiences, smart home controls, and industrial IoT dashboards that increase user engagement by 80% and position your brand at the forefront of 2025's immersive technology landscape.
Scale your team month-to-month with vetted freelancers, perfect for changing needs.
One-time fee for a fully-vetted, permanent, and globally compliant team member.
Kick off your next big project with a complete engineering team & end-to-end support.
$407B
Global mobile app revenue projected by 2026
3.8M
Apps available across major app stores worldwide
88%
Mobile time spent in apps vs mobile web
21%
Year-over-year growth in mobile developer demand
1 minute
Post a job
Sign up & tell us about your project and the skills you’re looking for.
48 hours
Screen candidates
We send you 3 hand-picked interview-ready JavaScript developers for your role.
2-3 days
Interview devs
Sign up & tell us about your project and the skills you’re looking for.
Final step
Hire devs
Once contracts are signed, you and your dedicated developer can start working together, under our management.
high performing vetted talent from Balkans, CIS & LATAM
longer commitment compared to in-house engineers
technologies covered, from Python & Java to Rust & Scala
the average industry experience of our tech talent
months average job engagement
with a 30-day payback, replacement discount, no extra fees
How quickly can I hire a mobile app developer?
How does Index.dev vet mobile app developers?
What are the rates for mobile app developers?
Can I hire a full mobile development team?
How does AI-first matching work?
What if a mobile app developer doesn't work out?
Choose from three models: talent, pods, or specialized labs.
These related technologies and skills might also be relevant to your needs

Grow your Development capabilities.
Access 30,000+ human-vetted mobile app developers from LATAM and CEE. AI-first matching, top 1% talent, 1.2% acceptance rate. Start risk-free today.
Get 30-day risk-free trial