Haroon MahmoodSenior Software Engineer
Profile Info

As a Senior Software Engineer with over 5 years of experience, my area of expertise is developing scalable SaaS solutions using AWS, PostgreSQL, PHP/Laravel, and NodeJS/NestJS. I've demonstrated my ability to lead projects from start to finish, optimize system functionality, and raise user engagement. I have experience in Agile techniques, system architecture, and project management. I like to read, watch movies, and play video games while I'm not working. I have a strong interest in using cutting-edge technologies to produce solutions that have a significant impact.

Technical Skills
Ai & Tools

Claude (Sonnet & Opus, Cowork), Github Copilot, Skills, Read.ai

Frontend

Nuxt, Vue, TypeScript, JavaScript

Backend

PHP, Laravel, Nestjs, Nodejs, Aplinejs

Database

MySQL, PostgreSQL, MongoDB

Cloud & DevOps

AWS (EC2, S3, Cognito, Lambda, SQS, SES), VPS, Docker, Github Actions

Others

Jira, Agile, Git, Trello, Cursor

Education

Master of Computer Science - MCS

University of Management and Technology - UMT
2019 – 2021 | Lahore, Pakistan

Bachelor of Computer Science - BCS

University of Management and Technology - UMT
2017 – 2019 | Lahore, Pakistan
Awards

Punctuality Award

Code District
2026

Promotion & Exceptional Performat

Code District
2025
Work Experience

Senior Software Engineer

Code District⁠
2022/11 – present | Washington, DC
  • •Successfully delivered a medical billing software solution built on Event-Driven Architecture (backend).
  • •Migrated 100,000+ records from a legacy file-based database to PostgreSQL, ensuring data integrity and minimal downtime.
  • •Led direct client communications to gather, clarify, and refine requirements, and cross-border team leads on architecture and backend system, and database design to ensure scalability, security, and performance.
  • •Designed and implemented CI/CD pipelines with GitHub Actions, incorporating automated unit testing using Pest and Jest.
  • •Improved code quality and code smells with SonarCube, PHPStan, and ESLint, increasing overall codebase integrity.
  • •Designed and delivered scalable web applications using NestJS, Laravel, and AWS

    • Software Developer

    Isloo Tech⁠
    2022/07 – 2022/10 | Islamabad, Pakistan
  • •Designed and delivered scalable web applications using PHP, Laravel, and AWS
  • •Implemented Jira project management with automation workflows, integrating CI/​CD pipelines using GitHub Actions to streamline development and deployment.
  • •Led a team of 3 developers, driving efficient project delivery with RESTful APIs, third-party service integrations, and multi-client solutions.
  • •Planned, designed, and developed a scalable ERP-based software architecture.
  • •Provided technical leadership, mentored junior developers, and contributed to system architecturedecisions.

    • PHP Developer

    Whetstonez⁠
    2021/10 – 2022/06 | Jeddah, Saudi Arabia
  • •Delivered scalable web applications with multilingual support, ensuring efficient performance and adherence to coding standards.
  • •Collaborated with cross-functional teams to gather requirements, design, and implement solutions for complex business problems.
  • •Optimization of database queries, improving system performance, and reducing page load times for enhanced user experience.

    • Laravel Developer

    IyeTech - Pakistan
    2020/03 – 2021/05 | Lahore, Pakistan
  • •Optimized cross-platform performance for mobile phones by leveraging APIs.
  • •Designed and developed APIs to enhance system functionality.