Welcome to my world

Hi, I'm Ahmad Mujahid
a Senior Backend Engineer

Hi there! I'm a Senior Software Engineer with a B.E. in Informatics Engineering and over 8 years of experience, based in Dubai. I specialize in architecting and building complex, scalable systems from the ground up. I have single-handedly architected and delivered large-scale platforms, including a national student assessment system with integrated AI/LLM capabilities and a comprehensive school registration portal with full payment and identity verification integrations. My expertise lies in high-performance backend development using Node.js, PostgreSQL, and resilient microservice architectures.

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Software Development

Leading cross-functional teams to deliver robust software solutions.

Full Stack Web Development

Expertise in both front-end and back-end technologies, building scalable and efficient applications with Node.js, React, and PostgreSQL.

Real-Time Systems

Developing and integrating real-time communication systems, enhancing user interaction and responsiveness.

Solution Architecture

Designing and overseeing the implementation of software architecture that aligns with business needs and scalability requirements.

DevOps and CI/CD Integration

Managing dev ops teams to establish secure and efficient Continuous Integration/Continuous Deployment pipelines.

Self-Hosted Solutions

Designing and implementing self-hosted systems, ensuring reliable and secure software operations tailored to specific needs.

Senior Backend Engineer

Tern Rewards · Full-time

Aug 2025 - Present · 2 mos

Dubai, United Arab Emirates · Hybrid

Developing and enhancing core backend services for a FinTech platform, focusing on rent payments and a complex rewards system.
Architecting secure integrations with payment gateways, government identity services (UAE Pass), and real estate verification systems (Ejari).
Building a highly scalable and resilient infrastructure to manage high-volume financial transactions and protect sensitive user data.

Skills: FinTech, Payment Processing, System Architecture, API Integration, Backend Development, Node.js, PostgreSQL, System Security

Lead Software Engineer

YH&H Products Design Services · Full-time

Jun 2023 - Aug 2025 · 2 yrs 2 mos

Dubai, United Arab Emirates · Hybrid

Architected and led the end-to-end development of forK12, a large-scale school registration platform with payment processing, ID verification, and integrated video conferencing.
Designed and implemented an AI-powered portal for the Ekhtibary platform to automate assessment generation, voice cloning, and dynamic reporting.
Acted as the sole technical authority, guiding cross-functional teams of freelance developers, designers, and DevOps engineers across multiple complex projects.
Directed the integration of complex third-party services, including payment gateways, identity verification APIs, and real-time communication platforms.

Skills: System Architecture, Technical Leadership, API Design, AI/LLM Integration, Third-party API Integration, Project Management, Node.js, PostgreSQL

Senior Software Engineer

YH&H Products Design Services · Full-time

Feb 2022 - May 2023 · 1 yrs 2 mos

Dubai, United Arab Emirates · On-site

Developed the complete backend from scratch for Ekhtibary, a national-scale student assessment platform, successfully supporting a live test with over 1,000 concurrent students.
Engineered a full-stack social media application featuring video processing and real-time chat, alongside a secure digital asset management system.
Revamped the Arabee corporate website using Next.js and a headless CMS, significantly improving performance and maintainability.

Skills: Backend Development, Node.js, PostgreSQL, REST APIs, Performance Tuning, Next.js, Full-Stack Development, Headless CMS

Senior Software Engineer

Hsoub · Full-time

Oct 2020 - Dec 2021 · 1 yrs 2 mos

Remote

Led a development team of 4, ensuring timely delivery of high-quality code for key product features.
Improved code quality by conducting rigorous code reviews and implementing standardized coding practices.
Designed and implemented robust RESTful APIs, reducing average response times by ~20% through performance monitoring and optimization.
Integrated WebSockets to enable real-time communication features in a chat application.

Skills: Team Leadership, REST APIs, PostgreSQL, NestJS, Performance Tuning, Microservices, TypeScript, WebSocket, Code Review

Software Engineer

Hsoub · Full-time

Aug 2019 - Oct 2020 · 1 yrs 2 mos

Remote

Successfully integrated web sockets in both the backend and frontend of a real-time chatting application.
Conducted performance profiling for the backend and implemented optimizations to enhance its performance.
Restructured complex SQL queries which were causing a bottleneck in the application's efficiency.
Improved the application's codebase by refactoring selected parts to enhance readability and maintainability.

Skills: Backend Development, Node.js, PostgreSQL, WebSocket, SQL, Performance Tuning, REST APIs

Software Engineer

Nabdah · Contract

May 2017 - Sep 2021 · 4 yrs 4 mos

Remote

Developed and delivered key systems: a Social Protection Management System with UNICEF and an Agricultural Information Management System with FAO.
Analyzed requirements, assessed technical feasibility, and designed system architectures aligned with stakeholder needs.
Developed backend (Node.js, PHP, MySQL) and frontend (React) components for software applications.
Ensured timely deployment and provided continuous maintenance and monitoring, achieving ~99.8% system uptime.

Skills: Full-Stack Development, Node.js, React, PHP, MySQL, System Design, Requirements Analysis

Software Engineer

Elixir for intelligent software · Part-time

Jun 2018 - Oct 2020 · 2 yrs 4 mos

On-site

Contributed to the Elixir framework by designing and developing core components.
Implemented dynamic web page presentation using Elixir metadata, improving user experience and page load times by ~15%.
Integrated the Solr search platform with the Elixir archiving system, improving search result relevance and reducing query times by ~25%.
Collaborated on developing stateful and stateless APIs, increasing system efficiency.

Skills: API Development, Solr, Java, JavaScript, Performance Tuning, MySQL