Umer Mushtaq

Senior Full-Stack Engineer with 5+ years of experience building and operating SaaS, marketplace, and AI-powered products. Strong expertise in Node.js, Next.js, React, TypeScript, PostgreSQL, MongoDB, AWS, real-time systems, payments, and LLM integrations. Experienced in system design, technical ownership, third-party integrations, production delivery, and mentoring developers.

MERN Stack Developer (Mid-Senior) - Zweidevs Pvt. Ltd. - Lahore, Pakistan

(2023-07)

• Own technical delivery of production applications from requirements and system design through implementation, deployment, and production support.
• Design scalable application architecture across Next.js, React, Node.js, Express.js, PostgreSQL, MongoDB, Redis, and cloud infrastructure.
• Lead technical decisions involving authentication, real-time systems, background processing, payment infrastructure, AI services, and complex third-party integrations.
• Perform code reviews, contribute to technical estimates and architecture, and mentor 3+ junior developers.

MERN Stack Developer - Buildout Solutions - Lahore, Pakistan

(2022-04 - 2023-07)

• Developed and maintained full-stack product features using React, Node.js, Express.js, MongoDB, and REST APIs.
• Improved application reliability by diagnosing issues across backend services, database queries, APIs, and legacy application logic.
• Collaborated with product, design, and engineering teams to convert business requirements into reusable production features.

Frontend Developer - Franco Pvt. Ltd. - Lahore, Pakistan

(2021-01 - 2022-03)

• Developed responsive production interfaces using React.js, Next.js, SSR, SSG, and REST APIs.
• Converted Figma designs into reusable components while improving frontend performance, responsiveness, and maintainability.
• Progressed from Engineering Intern to Full-Time Developer after contributing successfully to the production codebase.

Bachelor of Computer Science (BSCS) - University of Sahiwal (2016 - 2020)