Muhammad Usman
Senior Front-End Engineer
Muhammad Usman
Senior Front-End Engineer
Summary
I am a product-driven senior front-end engineer who focuses on clear, high-leverage UI for complex workflows. Across Instrumentl, Numeral, Square, and Weebly, I've shipped experiences that reduce friction, speed up work, and improve conversions, while building reusable UI foundations.
I work best in modern JavaScript/TypeScript and component-driven UI systems, pairing rapid prototyping with thoughtful iteration. I own projects end-to-end, collaborating with product and design to deliver polished, accessible experiences and maintainable design systems.
Experience
Instrumentl
June 2025 - PresentSenior Software Engineer
On the Manage team, I own post-award product areas end-to-end, shipping workflow improvements across the product.
I build reusable UI components and product surfaces using Ruby on Rails, Turbo/Stimulus, and Tailwind, focusing on clarity, consistency, and maintainable patterns.
Numeral
January 2024 - May 2025Senior Software Engineer
At Numeral, I've built core product experiences, including state tax registration flows, checkout, virtual mailbox onboarding, and the developer dashboard. I partnered closely with designers to untangle complex UX challenges in sales tax, an evolving space requiring thoughtful design.
To improve internal tooling, I developed a component library in Storybook, allowing the product team to prototype and update components quickly. I take a solution-first approach, prioritizing early prototyping and iteration to reduce blockers and accelerate development cycles.
Square / Block
June 2018 - July 2023Senior Software Engineer
I spent two years leading internationalization and localization efforts at Square, working with Ruby on Rails and PostgreSQL to expand the platform's global reach. After learning and growing the existing system, I designed a new localization system to improve scalability and efficiency.
Later, I transitioned to the loan decisioning team, where I helped manage a Go backend that processed for over $1 billion in loans.
Weebly
October 2015 - January 2019Full-Stack Web Developer
Weebly provides a platform for entrepreneurs to start a business and grow it on the internet: websites, eCommerce, email marketing, and more.
- First-time user onboarding
- Running AB tests (using a homebrewed a/b system)
- Creating a system for user guides to help new users kickstart their websites
- A free trial option for users
- Increase conversions by 15% in key parts of the product
Acquired by Square
Outbound.io
April 2014 - September 2015Frontend Developer
Simplifying multi-channel messaging for everyone! Employee #2, helped lay down foundational work for the frontend UI and handled everything from marketing pages to visual logging, user dashboard, and campaign creation in a SPA powered by Angular.
Acquired by ZenDesk
SquareTrade
September 2012 - April 2014Frontend Developer
Worked on redesigning the website, worked on marketing projects with design team. Introduced new workflow for CSS which included adding SASS and organization to the frontend code base. Added UI elements to handle user navigation.
Acquired by AllState