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@iobaidu5
العربية

RIYADH · SAUDI ARABIA · الرياض

Obaid Ullah

Senior Software Engineer — I build scalable, high-performance software across the full stack.

6+ years shipping products across fintech, IoT, telecom, and e-commerce in four markets. Currently at Darb in Riyadh.

View my workDownload CV
Obaid Ullah working at his laptop

01

About

Full Stack Engineer with 6+ years of experience building scalable, high-performance systems across fintech, IoT, telecom, and e-commerce. My work spans the full stack: backend services in Node.js, TypeScript, and Spring Boot; frontends in React and Next.js; and cloud infrastructure on GCP and AWS. I specialize in distributed systems — event-driven microservices, message-driven architectures (Pub/Sub, RabbitMQ, MQTT), and real-time data pipelines processing events at scale.

I've shipped products across four markets — Saudi Arabia, Pakistan, Qatar, and France — and I build multilingual products with full Arabic/RTL support, a differentiator I care about deeply in the GCC market. Lately I integrate AI-assisted engineering workflows (agentic coding tools) into daily delivery, from prompt design to production code.

6+ years experience
6+ years experience
4 markets shipped in
4 markets shipped in
5,000+ vehicles connected
5,000+ vehicles connected
SAMA-regulated fintech
SAMA-regulated fintech

02

Experience

  1. Feb 2026 – Present

    Senior Software Engineer · Darb

    Riyadh, Saudi Arabia

    • Building Darb, a SAMA-licensed corporate expense and AI fleet management platform (fleet fuel cards, procurement cards, digital petty cash)
    • Event-driven microservices in Node.js/TypeScript on GCP Pub/Sub
    • Integrations: Arab National Bank, Visa card issuing, ZATCA e-invoicing, Muroor traffic violations
    • Multilingual notification & reporting systems with full Arabic/RTL support (VAT-compliant PDF/Excel reports, SAR handling)
    • Client-facing features: referral program, spend controls, admin/client portals
    • AI-assisted development workflows integrated into delivery

  2. Mar 2024 – Jan 2026

    Full Stack Developer – IoT & M2M · Telenor Pakistan

    Islamabad, Pakistan

    • Built AUXO, end-to-end IoT fleet & asset management platform: 5,000+ connected vehicles, real-time tracking, geofencing, fleet analytics
    • Microservices + event-driven architecture with RabbitMQ; device pipelines over MQTT/TCP
    • Migrated legacy systems to cloud-native AWS with Docker; 30% faster DB response times via indexing/query optimization
    • Extended platform across AUXO Fleet, Cold Chain, Genset, Asset Management; contributed to M2M SIM Management Platform
    • Supported 500% customer growth (2019–2023 platform period)

  3. Aug 2022 – Feb 2024

    Full Stack Developer / Associate Software Engineer · Evamp & Saanga

    Islamabad, Pakistan

    • React/Next.js frontends + Spring Boot backends for enterprise telecom clients; code reviews, testing, end-to-end feature ownership

  4. Feb 2020 – Jul 2022

    Frontend Web Developer · BHInternet

    Évry-Courcouronnes, France

    • Delivered dozens of production client websites for a French web agency; responsive design, performance optimization

03

Featured Work

Two systems I've helped build end to end — a regulated payments platform and a telecom-scale IoT platform.

Darb — SAMA-Licensed Payments Platform

Engineering inside a regulated fintech: an event-driven notification pipeline, banking and government integrations, and bilingual financial reporting.

FintechNode.jsTypeScriptGCP Pub/SubArabic/RTL
Read case study

AUXO — IoT Fleet Platform at Telecom Scale

Real-time telematics ingestion at 5,000+ vehicle scale: event-driven processing over MQTT and RabbitMQ, and a legacy-to-cloud migration on AWS.

IoTMQTTRabbitMQAWSMicroservices
Read case study

04

Open Source & Projects

Selected Projects

  • Driverwave RiderApp

    React.js · Node.js · Express · PostgreSQL · Microservices

    • Built scalable ride-sharing platform supporting real-time GPS tracking, fare calculation, and payment processing
    • Implemented microservices architecture with message queuing, handling 1,000+ concurrent users
    • Developed admin dashboard for ride analytics, driver management, and revenue reporting

  • Einaya Takaful

    Next.js · Redux · Node.js · MySQL · AWS

    • Developed health insurance platform with automated claims processing, reducing processing time by 70%
    • Implemented secure user authentication and role-based access control for different user types
    • Deployed on AWS with auto-scaling capabilities, ensuring high availability during peak usage

  • Vogue Decor

    Next.js · Shopify Headless · Tailwind CSS · Storefront API

    • Engineered headless e-commerce solution integrated with Shopify, processing 500+ monthly orders
    • Implemented server-side rendering for SEO optimization, improving search rankings by 60%
    • Developed custom UI components with Tailwind CSS, ensuring brand consistency across platforms

  • Optiva Tec Selfcare

    React.js · Context API · Material UI · React Hook Form

    • Developed telecom self-care portal for 50,000+ customers to manage services and billing
    • Implemented complex form validation and state management for seamless user experience
    • Integrated with telecom backend systems for real-time data synchronization

  • Souq Al-Baladi

    E-commerce · Al Baladi Group · Doha, Qatar

    • E-commerce applications for Souq Al-Baladi (customer + driver apps)
View full project portfolio (PDF)(opens in a new tab)

Open Source

View all on GitHub

05

Skills

Backend

  • Node.js
  • TypeScript
  • Express
  • Spring Boot
  • REST
  • GraphQL

Frontend

  • React
  • Next.js
  • Tailwind
  • Material UI

Cloud & Infra

  • GCP (Pub/Sub)
  • AWS (Lambda, CDK)
  • Docker
  • CI/CD

Data & Messaging

  • PostgreSQL
  • Prisma
  • MongoDB
  • RabbitMQ
  • MQTT
  • Redis

Domains

  • Payments & Fintech
  • IoT/M2M
  • Arabic/RTL Localization
  • AI-Assisted Engineering

06

Certifications

  • AWS Certified Solutions Architect – Associate
  • AI For Everyone (DeepLearning.AI)
  • Crash Course on Python (Google)
  • Software Engineering Virtual Experience

07

Contact

Have a project, a role, or just need a hand with something technical? Reach out — email or WhatsApp is the fastest way. I'm based in Riyadh and open to relocation.

Or send a message directly