Senior Full-Stack Developer

8 hours ago

Doha, Baladīyat ad Dawḩah, Qatar Power Diet Full time

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.

Email at

Job Types: Full-time, Permanent, Contract

Contract length: 24 months

Pay: QAR5, QAR7,000.00 per month

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