SDE 3 - Mobile

Helfie.AI; Hyderabad; On-site; INR 1,800,000 - 2,600,000; Full time

Job summary

Helfie.AI in Hyderabad is seeking an experienced mobile developer to design, build, and maintain features for Android and iOS. You will work across native and cross-platform frameworks, optimize performance, and own CI/CD pipelines.

Ideal candidates have 4+ years of mobile development, hands-on Kotlin or Swift, and familiarity with Kotlin Multiplatform, Flutter, or React Native. Join a team that values collaboration and quality software.

Qualifications

• 4+ years of professional mobile development experience.
• Experience shipping and maintaining production apps.
• Hands-on experience with at least one native platform (Android or iOS).
• Experience with at least one cross-platform framework (KMP, Flutter, or React Native).
• Kotlin Multiplatform experience preferred.

Responsibilities

• Design, build, and maintain mobile features for Android and iOS.
• Balance cross-platform reuse with native UX quality.
• Optimize startup time, memory, rendering, and network use.
• Own and improve CI/CD pipelines for mobile.
• Collaborate with backend, product, and design to implement UI.
• Diagnose issues with crash reports and performance tools.
• Profile and tune multithreading/concurrency paths.
• Support release cycles, rollouts, and store submissions.

Skills

Android Kotlin

iOS Swift

Kotlin Multiplatform

Flutter

React Native

CI/CD

Performance optimization

Multithreading

Code reviews

Tools

GitHub Actions

Fastlane

Crashlytics

Firebase Performance

Code signing

Job description

Responsibilities:

• App Development: Design, build, and maintain mobile application features across Android and iOS, using native tooling (Kotlin + Jetpack Compose / Swift + SwiftUI) as well as cross-platform frameworks, following modern architecture patterns (MVVM/MVI, clean architecture).
• Cross-Platform Development: Build and maintain shared business logic and/or UI using a cross-platform framework (Kotlin Multiplatform preferred; Flutter or React Native also relevant), balancing code reuse with native UX quality.
• Scale and Performance: Build features and systems that hold up under high user load, optimizing for app startup time, memory footprint, rendering performance, and network efficiency.
• CI/CD Ownership: Maintain and improve CI/CD pipelines (GitHub Actions, Fastlane) covering linting, automated testing, code signing, and store deployments; troubleshoot pipeline failures independently.
• Code Quality: Write clean, testable, well-documented code; participate actively in code reviews and uphold engineering best practices across the squad.
• Cross-Team Collaboration: Partner with backend engineers to define and consume API contracts, and work with product/design to translate requirements into polished, functional UI.
• Debugging and Observability: Use crash reporting and performance monitoring tools (e. g., Crashlytics, Firebase Performance) to diagnose issues and drive fixes proactively.
• Performance Tuning: Profile and improve app startup time, memory footprint, and responsiveness; own multithreading/concurrency decisions in performance-sensitive code paths.
• Release Support: Support release cycles, including phased rollouts, hotfixes, and store submission processes, working closely with the Mobile Lead.
• Technical Versatility: Stay current with the broader mobile ecosystem (native, KMP, React Native, Flutter, etc. ) and bring an informed perspective on tooling and architecture decisions.

Requirements:

• Experience: 4+ years of professional mobile development experience, with a track record of shipping and maintaining production apps.
• Platform Expertise: Hands-on experience with at least one native platform, Android (Kotlin + Jetpack Compose) or iOS (Swift + SwiftUI), is required; working experience with both platforms is a plus.
• Cross-Platform Framework: Hands-on experience with at least one cross-platform framework (Kotlin Multiplatform, Flutter, or React Native) is required. Experience with Kotlin Multiplatform (KMP) specifically is preferred.
• Scale: Experience working on apps with a large, active user base, with an understanding of the performance, reliability, and release challenges that come with scale.
• Mobile Landscape Awareness: Good understanding of the broader mobile technology landscape and tradeoffs between native and cross-platform approaches, and ability to reason about when to use what.
• CI/CD: Practical experience maintaining CI/CD pipelines for mobile (GitHub Actions, Fastlane, or equivalent), including build automation and code signing.
• Testing: Experience writing unit and UI tests; familiarity with automated testing frameworks.
• Performance and Reliability: Experience optimizing app startup time, memory usage, and rendering performance; comfortable diagnosing and fixing performance regressions.
• Crash Tracking and Debugging: Hands-on experience with crash reporting and diagnostics tools (e. g., Crashlytics), triaging crash reports, and driving root‑cause fixes.
• Kotlin Internals: Solid understanding of Kotlin language internals (coroutines, sealed classes, inline/reified functions, memory model) beyond surface‑level syntax.
• Multithreading and Concurrency: Practical experience with multithreading and concurrency patterns on mobile (coroutines/structured concurrency, GCD/Dispatch, thread safety, background processing).
• AI‑Assisted Development: Hands‑on experience using AI agentic development tools (e. g., Claude Code, Cursor, GitHub Copilot) as part of the regular development workflow.