Mobile App Developer at Sage Grey Tech

Sage Grey Technologies Limited is a venture studio which engages in development, production, and distribution of technology related products, services or solutions.

We are recruiting to fill the position below:

Job Title: Mobile App Developer

Location: Isolo, Lagos
Employment Type: Contract

About the Role

• We are looking for a talented Mobile Application Developer with strong experience in React Native, Expo, and TypeScript to join our growing engineering team.
• You will be responsible for building high-quality, scalable, and user-friendly mobile applications that power our products and deliver exceptional experiences to our users.

Key Responsibilities

• Develop and maintain cross-platform mobile applications using React Native, Expo, and TypeScript
• Implement pixel-perfect UI components and ensure the application is responsive across devices
• Integrate REST APIs and handle application state management (e.g., Zustand, Redux or Context API)
• Collaborate with backend engineers, designers, product managers, and QA teams
• Optimize app performance, handle debugging, and ensure smooth user experience
• Participate in code reviews, documentation, and version control using Git
• Implement best practices for mobile app security, testing, and deployment

Requirements

• 2+ years of professional experience with React Native
• Strong proficiency in TypeScript and modern JavaScript (ES6+)
• Experience with Expo workflow (Managed or Bare)
• Good understanding of mobile UI/UX principles
• Knowledge of REST APIs, JSON, and mobile networking
• Familiarity with state management tools (Zustand, Redux, MobX, etc.)
• Experience with push notifications, deep linking, and app permissions
• Understanding of mobile app build and deployment (Android & iOS)
• Ability to work independently and collaboratively in a fast-paced environment.

Nice to Have:

• Experience with NativeWind or TailwindCSS for React Native
• Experience integrating Firebase or other cloud services
• Knowledge of CI/CD tools for mobile
• Prior experience working on SaaS or multi-platform projects.

What We Offer

• Salary: N250,000 - N300,000 per month.
• Opportunity to work on impactful and innovative projects
• Flexible working environment (remote/hybrid)
• Growth opportunities and professional development
• Collaborative and supportive team culture.

Application Closing Date
15th January, 2026.

How to Apply
Interested and qualified candidates should send their CV to: careers@sagegreytech.com using the Job title as the subject of the mail.