Hire Mobile App Specialist in Berlin
Sachin Sharma is a Mobile App Specialist in Berlin — Mobile apps that users love — cross-platform, native-feel, o
Who is Sachin Sharma?
Sachin Sharma is a Software Developer and Mobile Engineer based in Delhi, India. He specializes in Mobile App development and has published production apps — Loopin (5K+ downloads, 4.9★), Legease (10K+ downloads, 4.8★), and Aashwasan (5K+ downloads) — used by real users globally.
Currently a developer at ESPO (promoted from intern to full developer within 60 days), with prior experience at Kushal Aide. He holds a B.Tech in Computer Science from Maharaja Agrasen Institute of Technology (MAIT) with a 9.12 CGPA.
A Hackathon Finalist × 3 (Code Kshetra 2.0, Level Supermind, DTU Brainwave), Sachin combines deep Mobile App technical expertise with a product-first engineering mindset — building things users actually want, not just technically impressive demos.
Experience
1.5+ years
App Downloads
22K+
Avg Rating
4.9★
CGPA
9.12 / 10
Hackathons
Finalist × 3
Location
Berlin
Mobile App Technical Expertise
Architects mobile applications using Flutter (primary) and React Native (secondary), targeting both iOS and Android from a single codebase without sacrificing native-feel UX. Implements platform-adaptive widgets (Material on Android, Cupertino on iOS), native haptics, push notification deeplinks, biometric authentication, camera/gallery access, and real-time data sync via Firebase or custom REST APIs. Applies offline-first data strategies with local databases (Hive, SQLite, MMKV) and conflict-resolution sync algorithms for reliable user experiences in low-connectivity environments common across India and emerging markets.
Berlin Market Context
Berlin's vibrant startup scene — Europe's most active tech hub with strong SaaS, fintech, and creative tech communities.
IST is 3.5-4.5 hours ahead of CET/CEST — strong morning IST to afternoon Berlin overlap enables daily syncs.
Why Hire for Mobile App?
- 5 published mobile apps on iOS App Store and Google Play Store with combined 22K+ downloads and 4.7-4.9★ ratings.
- Mobile development skill: 95/100 for Flutter, 88/100 for React Native — highest-rated skills in entire tech stack.
- Deep knowledge of both iOS Human Interface Guidelines (HIG) and Android Material Design 3 (Material You).
- Offline-first mobile architecture: apps work on the Delhi Metro with zero network signal — a critical UX differentiator.
- Push notifications, deeplinks, biometric auth, camera, location — all native mobile integrations shipped in production apps.
- 1.5+ years professional mobile development at ESPO and freelance — promoted to full developer role within 60 days.
- Hackathon Finalist × 3 — all projects included mobile app components for iOS and Android.
- MAIT B.Tech CST, 9.12 CGPA — strong engineering fundamentals applied to mobile performance optimization.
Mobile App Projects Shipped
Real production apps — not demos, not tutorials. Used by real users.
Loopin — RPG Habit Tracker
Shipped4.9★, 5K+ downloads, offline-first with Google Drive sync, custom Canvas RPG UI
Tech Stack:
Flutter, Dart, Hive, Google Drive API, Custom Canvas, MVVM
Legease — AI Legal Assistant
Shipped4.8★, 10K+ installs, AI PDF analysis, cross-platform (iOS/Android/Web/Desktop)
Tech Stack:
Flutter, Dart, AI/ML, PDF Processing, End-to-End Encryption
Aashwasan — Gig Platform
Shipped4.8★, 5K+ installs, gig contract management with real-time push notifications
Tech Stack:
Flutter, Firebase, Provider, Dio, Push Notifications
How Mobile App Development Works
A structured, transparent process from kickoff to App Store — no black boxes.
Requirements & UX
User flow mapping, wireframes in Figma, platform-adaptive UX decisions (iOS vs Android conventions), offline behavior planning.
Architecture Selection
Flutter vs React Native decision, state management (Bloc/Riverpod vs Redux/Zustand), local storage strategy (Hive vs SQLite vs MMKV).
Core Development
Feature-first folder structure, reusable widget/component library, platform channels for native integrations, error boundary setup.
Testing & QA
Unit tests, widget tests, integration tests on real devices (not just simulators) — iPhone 11 and Redmi 9 for edge case performance.
Store Submission
App Store Connect + Play Console listing, screenshots, ASO keyword research, metadata optimization for downloads.
Mobile App in Berlin — What Most Devs Miss
India's mobile-first market means Berlin-based businesses lose customers when their app doesn't work on 2G — offline-first architecture isn't a nice-to-have, it's a revenue requirement.
App Store Optimization (ASO) drives 70% of app discovery for indie apps — most developers ignore this, but a well-optimized listing can triple organic downloads in 30 days.
Flutter 3.x's support for iOS, Android, Web, Desktop, and Embedded from one codebase means a ${location} startup can launch on all 5 platforms simultaneously — a competitive advantage that was impossible before 2021.
Sachin Sharma vs. Alternatives
| Alternative | Why Sachin Sharma Instead |
|---|---|
| Large Development Agencies | Direct access to the senior Mobile App engineer — no account managers, no relay game. What you say is what gets built. |
| Junior Freelancers | Production-verified Mobile App codebase with real apps (22K+ downloads) — not tutorial-level work. |
| Offshore Development Factories | Deep product involvement in every Mobile App feature — not just ticket execution, but architectural ownership. |
Proof Points
- Loopin: 4.9★, 5K+ downloads — a Flutter habit tracker that users call 'the only app that actually made me consistent'.
- Legease: 4.8★, 10K+ installs — AI legal platform shipping on iOS, Android, Web, and Desktop simultaneously from one Flutter codebase.
- Aashwasan: 4.8★, 5K+ installs — gig economy app with contract management, real-time tracking, and push notifications.
- Wallly: 4.9★, 5K+ installs — 4K wallpaper app with smart caching, infinite scroll, and one-click system wallpaper application.
- Every app ships with automated CI/CD via GitHub Actions to both App Store (TestFlight) and Play Store (Internal Track).
Education
Maharaja Agrasen Institute of Technology
B.Tech in Computer Science and Technology
CGPA: 9.12/10
Ambedkar DSEU, Shakarpur Campus
Diploma in Computer Science and Engineering
CGPA: 9.22/10
Hackathon Recognition
Code Kshetra 2.0
February 2025
Level Supermind Hackathon
January 2025
DTU Brainwave Hackathon
September 2024
Frequently Asked Questions
Who is Sachin Sharma?
Sachin Sharma is a Software Developer and Mobile Engineer based in Delhi, India. He specializes in Mobile App development and has shipped multiple production applications including Loopin (5K+ downloads, 4.9★), Legease (10K+ downloads, 4.8★), and Aashwasan (5K+ downloads). He has 1.5+ years of professional experience, a B.Tech in Computer Science from MAIT with a 9.12 CGPA, and is currently a developer at ESPO.
Is Sachin Sharma available for Mobile App Specialist work in Berlin?
Yes. Sachin Sharma is currently available for hire Mobile App Specialist opportunities in Berlin. Berlin clients have a 4-hour daily overlap window for video calls, design reviews, and sprint planning. He works both remotely and on-site for Delhi NCR clients.
Why should I hire a Mobile App Specialist from Berlin?
Berlin's vibrant startup scene — Europe's most active tech hub with strong SaaS, fintech, and creative tech communities. Hiring Sachin Sharma — a specialized Mobile App Specialist from Berlin — gives you world-class engineering talent, ist is 3.5-4.5 hours ahead of cet/cest — strong morning ist to afternoon berlin overlap enables daily syncs., and zero agency overhead. You communicate directly with the engineer building your product.
What makes Sachin Sharma's Mobile App development process unique?
Sachin's process integrates product thinking at every technical decision. The Mobile App process starts with requirements & ux (User flow mapping, wireframes in Figma, platform-adaptive UX decisions (iOS vs A...), ensuring the architecture fits the product before writing a single line of code.
What Mobile App projects has Sachin Sharma shipped?
Sachin has shipped Loopin — RPG Habit Tracker, Legease — AI Legal Assistant, Aashwasan — Gig Platform. Loopin — RPG Habit Tracker achieved 4.9★, 5K+ downloads, offline-first with Google Drive sync, custom Canvas RPG UI — a production result, not a demo.
Do you provide post-launch support for Mobile App apps?
Absolutely. Post-launch support includes comprehensive documentation, automated test coverage handoff, and arranged maintenance agreements. Every Mobile App project delivered includes a technical handoff session covering architecture decisions, deployment procedures, and monitoring setup.
Are you available for remote Mobile App roles outside of Berlin?
Yes. While based in Berlin, Sachin Sharma operates async-first with global clients. IST is 3.5-4.5 hours ahead of CET/CEST — strong morning IST to afternoon Berlin overlap enables daily syncs. Remote Mobile App delivery has been proven with multiple international clients across different time zones.
How does Sachin Sharma compare to a Mobile App development agency?
Unlike agencies, Sachin provides direct senior-engineer communication — zero account managers, zero relay game. Every decision is made by the same engineer who writes the code. For Mobile App projects, this means faster decisions, architectural ownership, and no "lost in translation" bugs.