Mobile App Developer

Company Description

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Role Description

This is a full-time on-site role for a Mobile App Developer specializing in React Native, NestJS, and AI-focused technologies, based in Doha, Qatar. The Mobile App Developer will be responsible for developing, testing, and maintaining mobile applications with a focus on seamless performance and user experience. The role includes integrating AI features, collaborating with cross-functional teams, optimizing app efficiency, and ensuring compatibility across different devices and platforms.

Qualifications

• Proficiency in Software Development and Programming, including experience in React Native and JavaScript frameworks.
• Strong understanding and experience working with Databases, including design and optimization.
• Proficiency in Cascading Style Sheets (CSS) for designing user interfaces.
• Experience in API Integration and working with RESTful services.
• Ability to learn and integrate AI technologies into mobile apps.
• Excellent problem-solving skills and attention to detail.
• Bachelor's degree in Computer Science, Software Engineering, or a related field.

Experience with NestJS and knowledge of mobile app deployment processes is a plus.As a
Senior Full-Stack Developer
, you will play a critical role in developing, maintaining, and scaling Lumi's mobile and backend systems. You will work on both
React Native mobile applications
and
NestJS-based backend services
, contribute to architectural decisions, and ensure high performance, security, and scalability.

This role requires hands-on expertise, strong problem-solving skills, and experience working with real-world production systems.

Key ResponsibilitiesFrontend / Mobile Development

• Develop, enhance, and maintain
  React Native
  mobile applications (
  Android & iOS
  ).
• Improve UI/UX performance, responsiveness, and stability.
• Fix bugs, optimize existing features, and implement new functionality.
• Integrate APIs and third-party services efficiently.
• Ensure smooth app deployment to
  App Store & Play Store.

Backend Development

• Design, develop, and maintain backend services using
  NestJS )
  .
• Build and manage
  RESTful APIs
  for mobile and web platforms.
• Optimize backend performance, security, and scalability.
• Work with authentication, authorization, and role-based access control.
• Integrate real-time services and background jobs where needed.

AI & Smart Features

• Collaborate on AI-driven features such as automation, recommendations, and intelligent workflows.
• Work with AI APIs, data pipelines, and AI-based decision systems.
• Support integration of AI modules into mobile and backend systems.

DevOps & Infrastructure

• Work with
  CI/CD pipelines
  for automated build, test, and deployment.
• Experience with
  Azure Cloud
  (App Services, Storage, Databases, Functions, etc.).
• Manage environments (Development, UAT, Production).
• Ensure system reliability, monitoring, and performance optimization.

Code Quality & Collaboration

• Maintain clean, scalable, and well-documented code.
• Use
  GitHub
  for version control, pull requests, and code reviews.
• Collaborate with product managers, designers, and QA teams.
• Participate in technical planning, estimations, and architecture discussions.

Required Skills & ExperienceMust-Have Skills

• 4+ years of experience
  in mobile and full-stack development.
• Strong expertise in
  React Native
  .
• Strong experience with
  NestJS
  and
  
  .
• Excellent knowledge of
  JavaScript / TypeScript
  .
• Experience building and consuming
  RESTful APIs
  .
• Solid understanding of
  Git / GitHub workflows
  .
• Experience with
  CI/CD pipelines
  .
• Hands-on experience with
  cloud hosting (Azure preferred)
  .
• Strong debugging, optimization, and problem-solving skills.
• Experience maintaining and improving existing production apps.

AI & Advanced Skills (Highly Preferred)

• Experience working with
  AI-powered features or APIs
  .
• Understanding of AI workflows, data processing, or ML integration.
• Experience integrating AI into mobile or backend systems.