Uman Mushtaq
Software Engineer | Node.js & TypeScript
Salary / Daily rate
Paris, France
Mobility: Lyon, Bordeaux, ...
Freelance, open to permanent contract
Can come onsite
Skills
Languages
About me
Intro
Node.js and NestJS backend engineer with 4 years of production experience building microservices in fintech and crypto. Built payment flows, wallet systems, and trading platform backends at OptimusFox across three products. Currently building NexusPay, an open-source event-driven fintech platform with 7 NestJS microservices, Kafka, RabbitMQ, PostgreSQL, and a full KYC workflow. Available immediately for freelance missions in Paris and remote
Work experience
Software Engineer
OptimusFox
Oct 2021 - Jul 2024
2 years 10 months
Lahore, Punjab, Pakistan
Built 4 production NestJS microservices across fintech, crypto, and SaaS products, covering payment flows, wallet management, and trading backends. Integrated Stripe, PayPal, Auth0, Firebase, Twilio, and SendGrid. Redesigned PostgreSQL and MongoDB schemas across 3 services to fix recurring production bugs. Built GitHub Actions CI/CD pipelines from scratch across 4 services, reducing deployment effort by 60%. Dockerised 4 services with multi-stage builds. Worked in a cross-functional team of 10 engineers in 2-week sprint cycles.
Back End Developer
Teams.pk
Jun 2020 - Oct 2021
1 year 5 months
Lahore, Punjab, Pakistan
Built and maintained REST APIs powering core workflows of a B2B SaaS platform with Node.js, TypeScript, and Express.js, supporting 50 business clients. Resolved performance bottlenecks across 3 core API modules.
Education
Paris School of Business
Master of Business Administration - MBA
2024 - 2025
10 months
University Of Central Punjab
Bachelor of Science - BS
2015 - 2019
5 years
Portfolio
