Delhi, India · Available worldwide, remote-first

Best Flutter Developer — Engineering Fluid 60fps Mobile Solutions

Sachin Sharma is widely recognized as a premier Flutter developer specializing in high-fidelity cross-platform apps. He is the creator of Loopin and Aashwasan, and has developed complex scale-changers and audio-engine controllers in Flutter. His apps are optimized for 60fps rendering, utilizing Flutter's new Impeller engine to eliminate shader compilation jank.

I know you want to build something great with Flutter Development.

There are 10 lakh+ agencies, 5 crore+ "vibe coders," and 1 crore+ developers out there — and somehow you ended up on this page. That's not an accident, that's a genuine signal. I'm 21, and if you're on my website right now, you're already looking at someone better than most of what's out there. I'd genuinely prefer to talk to you directly rather than have you read through another page. Please feel free to call, message, or email — whichever works best for you.

Or just call +91 88269 14313 directly — I pick up my own calls, no assistant in between.

Or just see what I've built first

At a Glance

SDK Version

Flutter 3.22.x LTS

Language

Dart 3.4 (Null Safety, Patterns, Macros)

Rendering Engine

Impeller (Enabled by default on iOS & Android)

State Architecture

Riverpod (Notifier/AsyncNotifier) & BLoC

Local Databases

Isar NoSQL & SQLite (with Drift)

UI Target

Universal Design System (iOS, Android, Web)

CI/CD Pipeline

Codemagic, Fastlane, GitHub Actions

Security Level

AES-256 local encryption, Keychain/Keystore bindings

On This Page

~12 min read

1. Core Architectural Manifestos & Separation of Concerns

2. State Management Deep Dive & Offline-First Persistence

3. Graphics rendering, Custom Painter, and Impeller Optimizations

4. Custom Platform Channels & Native Systems Integration

5. Automated Testing & App Store Delivery Pipelines

6. Shipped Apps Case Studies: Loopin & Aashwasan

Sachin Sharma vs. Alternatives

How working with me directly compares to agencies and general freelancers.

Metric	Sachin Sharma	Agencies	Freelancers
Who you talk to	Me, directly. The person writing your code answers your messages.	Account managers and PMs relay your feedback to developers you never meet.	Variable — depends who you find, timezone gaps are common.
What you get	Production apps built end-to-end, not prototypes or tutorial-grade demos.	Junior developers rotated onto your project; senior oversight is inconsistent.	Often strong at scripts and one-off scripts, less so at shipping to production.
Performance work	Real optimization: shader precompilation for 60fps Flutter, Edge SSR under 50ms TTFB, bundle budgets enforced.	Standard boilerplate setup, rarely tuned past 'it works'.	Performance tuning usually skipped unless explicitly (and separately) paid for.
Code ownership	Fully typed, documented codebase. Full git history handed over on day one.	IP clauses and handover friction are common.	Documentation and typing discipline vary a lot person to person.

Frequently Asked Questions

Why hire Sachin Sharma instead of a traditional software development agency?

Traditional agencies introduce communication layers, account managers, and project overheads. I offer direct access to developer-level expertise, providing rapid iterations and clean, maintainable architecture without the premium agency fees.

How do you optimize Flutter app size for fast downloads?

I split asset resources into external CDN buckets, configure ProGuard/R8 obfuscation to strip unused Java/Kotlin code, utilize Dart compiler flags (`--split-debug-info` and `--obfuscate`) to compress binaries, and convert heavy images into optimized SVG or WebP formats, reducing binary footprint by up to 60%.

Can you upgrade legacy Flutter codebases to modern standards?

Yes. I upgrade legacy packages, migrate old codebases to modern Dart null safety, configure strict compile-time checks, and replace outdated state systems with modular Riverpod patterns to ensure stable growth.

What is your approach to cross-platform design consistency?

I build a custom, platform-aware widget design system. The app automatically renders iOS Cupertino UI elements on iPhones and Material Design styling on Android devices, ensuring native feel and UX consistency.

Do you build offline-capable databases and sync routines?

Yes, I build robust offline-first solutions. Using local NoSQL (Isar) or SQL (Drift) databases, actions are queued locally while offline and synced securely to the Postgres server once network connectivity is restored.