Welcome to my world

Hi, I'm Ahmad Mujahid
a Lead Backend Engineer

Hi there! I'm a Lead Backend Engineer with a B.E. in Informatics Engineering and 9 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.

Follow me on

Best Skills On

Money that moves correctly

A card is charged once, every amount is recorded, and the right person is paid on time. Even when a provider fails halfway.

Platforms that hold under load

Systems that many people use at the same moment, like a live test with 1,000+ students.

AI that is checked, not trusted

I put AI to work where its answers are tested, measured, and tied to a source, so people can rely on them.

Lead Backend Engineer

Tern · Full-time

Sep 2026 - Present · 1 mo

Dubai, United Arab Emirates · Hybrid

Own backend architecture, technical direction, and delivery for a rent payments and rewards platform.
Coordinate releases across the backend, web, and mobile teams.
Own code review, the engineering standards, and testing and quality on money flows.
Own production reliability: monitoring, alerting, and incident response.
Hire, onboard, and mentor engineers.
Drive the team's use of AI-assisted development.

Senior Backend Engineer

Tern · Full-time

Sep 2025 - Sep 2026 · 1 yr 1 mo

Dubai, United Arab Emirates · Hybrid

Rebuilt the core payments system: charges, refunds, payouts, and provider integrations.
Hundreds of millions of dirhams in rent payments processed through the payments system I rebuilt.
Restructured the codebase and replaced manual deploys with automated build, test, and release pipelines.
Built the end-to-end test suite on money flows that guards every release.
Owned and modernized the partner-facing API.
Led payments features from design to production, including rent installments.
Built internal developer tools.
Introduced AI-assisted code review and ran AI training for the team.

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 3 mos

Dubai, United Arab Emirates · Hybrid

Architected forK12, a school registration platform with payments, ID verification, and video conferencing.
Designed and built an AI portal for Ekhtibary: assessment generation, voice cloning, and dynamic reporting.
Acted as the sole technical authority over freelance developers, designers, and DevOps engineers.
Led the third-party integrations.

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 yr 4 mos

Dubai, United Arab Emirates · On-site

Built the Ekhtibary backend from scratch. It ran a live test with 1,000+ concurrent students.
Built a social media app with video processing and real-time chat.
Built a digital asset management system with file indexing.
Revamped the Arabee site with Next.js and a headless CMS.

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