React native software developer

Sella East Africa

Sella East Africa
Location: 2
Employment Type: Full-time
Experience Level: Senior
Salary Range: KES 50000 - 60000 per year
Position Type: local
Application Deadline: 1/31/2026

Job Description

You will be writing robust, performant TypeScript code and collaborating with product teams to solve complex challenges. This is a high-impact role where you will work with a modern React Native stack, aiming to keep our app fast, reliable, and easy to maintain.


You Will Focus On

• Feature Delivery: Building high-performance, user-centric mobile features for iOS and Android.

• Code Quality: Writing clean, testable TypeScript code and actively participating in code reviews.

• Performance: Identifying bottlenecks (app size, re-renders, startup time) and implementing fixes.

• Collaboration: Working directly with Backend, QA, and Product teams to clarify requirements and deliver seamless UX.

• Growth: Contributing to architectural discussions and learning best practices from senior engineers.


Key Responsibilities

• Design & Implementation

• Develop and maintain cross-platform applications using React Native and TypeScript.

• Build reusable UI components and performant lists (FlashList/FlatList) that adhere to design specs.

• Integrate mobile apps with backend services via RESTful APIs and WebSockets.

• Debug platform-specific issues using Xcode and Android Studio, writing native modules (Swift/Kotlin) when necessary.

• Engineering Standards

• Contribute to the codebase’s health by fixing technical debt and improving test coverage.

• Participate in architectural discussions, offering input on state management and navigation patterns.

• Review peer code to ensure it meets our standards for readability and maintainability.

• Performance & Reliability

• Monitor production crashes (using tools like Sentry/Crashlytics) and proactively fix stability issues.

• Optimize app performance, focusing on frame rates, memory usage, and battery consumption.

• Assist in maintaining CI/CD pipelines to ensure smooth releases to the App Store and Google Play.


Requirements

• 3+ years of professional software engineering experience, with at least 2 years focused on React Native.

• Strong proficiency in TypeScript and the React Native ecosystem (CLI, Hermes, debugging tools).

• Good understanding of the iOS and Android build systems (Gradle, Pods, signing/provisioning).

• Ability to read native code (Swift/Kotlin) to debug issues.

• Familiarity with modern patterns (Functional Components, Hooks) and state management (Redux Toolkit, Zustand, or TanStack Query).

• Experience writing unit tests (Jest) and familiarity with E2E testing concepts.

• Ability to explain technical constraints to non-technical stakeholders clearly.

• English: B2, written and spoken; ability to work in a team and communicate clearly in English.


Nice To Have

• Experience launching and maintaining a B2C app with 100k+ MAU.

• Hands-on experience writing Native Modules or JSI/TurboModules from scratch.

• Familiarity with mobile analytics (Segment, Amplitude) and A/B testing implementation.

• Experience with Maestro/Appium for automation.

• Knowledge of backend fundamentals (Node.js) to debug API integrations effectively.

• Experience with Web development (ReactJS, NextJS)


We Offer

• Scale: Your code will impact millions of users globally, where performance optimizations translate to immediate value.

• Modern Stack: Work with the latest React Native tools without being bogged down by legacy spaghetti code.

• Growth Culture: A collaborative environment with code reviews and knowledge sharing - we value the best idea, regardless of title.

• Impact: A fast-paced environment where you can see your features go live quickly.

Required Skills

Required Certifications

AWS