Hi 👋 Glad to see you here!
If you're looking for a single-page PDF version of my work experience please check out this link.
CashFlow AI — Smart expense tracker
My second personal product, built with React Native and Python Django, lets users track expenses without filling out forms. Type your income and expenses as a sentence — for example, "spent $20 on gas, $100 on tuition fees, earned $500 from freelancing" — and the app creates three entries: two expenses and one income. Try it at cashflow.hamzawaleed.com.
Technologies Used: React Native, Python, Django, AI/LLM
Jobcase
![](/blog-images/a929f044-fae1-4e2e-b7cf-cc069310c0fb.png align="center")
Jobcase is a leading platform for blue-collar workers. Jobcase acquired upward.net, raised over $80 million and became the third-largest online jobs portal. I've developed multiple new features for Jobcase as Sr. Software Engineer at Arbisoft.
My achievements on this project include:
Led a team of seven engineers to exceed client expectations and deliver high-quality results in each sprint.
Led end-to-end implementation and improved performance from 20fps to 50+fps
Upgraded React Native from 0.64 to 0.68, resolving several breaking changes
Improved app speed through effective use of memoization.
Implemented a user-connection feature
Streamlined QA with the integration of Detox end-to-end testing and GitLab pipelines using custom runner
Technologies Used: Javascript, React Native, Redux, Detox, Jest, Launch Darkly, CI/CD, Fastlane, Adjust SDK
The Bitcoin Company
![](/blog-images/079563d1-b86b-4495-a0f6-e7fdefa4aa05.png align="center")
Developed TheBitcoinCompany's app, a simple, private, and easy-to-use platform for earning, learning, spending and saving Bitcoin
Wrote test cases to ensure reliable public releases in beta version
Got this freelance project from a previous client(Sifir.io) to convert mockups to responsive design, integrate APIs, and configure end-to-end testing with Detox
Technologies Used: Javascript, React Native, Redux, React Query, Detox, Fastlane, Stripe
Sifir.io
![](/blog-images/fc317c6b-0391-4eda-a8bc-af10b3993a0b.png align="center")
Designed and coded a visually stunning, user-friendly Bitcoin open-source wallet (Sifir.io) in React Native
Optimized animations for fast performance and minimized JS overload
Provided customization options for privacy and anonymity
Rethought UX for optimal mobile use and accessibility for all users
Here's how it looks!
![](/blog-images/216fb230-8803-453c-8251-cbf18787286a.png align="center")
![](/blog-images/ba0862a8-e455-48cb-bd63-73f10ee9530a.png align="center")
Here's my favourite animation that I developed!
%[https://twitter.com/SifirApps/status/1269970305977585665?s=20&t=A3rHM0WOkswr5GEBqzVczg]
The owner, an engineer from Canada, was thrilled with the results and raised my hourly rate twice in a week without my request ;)
Technologies Used: Javascript, React Native, D3.js
Anony Botter
My first personal SaaS project: a free Slack bot that allows users to send anonymous messages, as well as create and participate anonymously in polls.
See full details in my blog post: Introducing Anony Botter: The Slack Bot for Open Communication in Teams
Technologies Used: Javascript, Slack Bolt JS SDK, Vercel, MongoDB
Open Source Contribution @ freeCodeCamp
freeCodeCamp was going to create its own library of UI components, I got a chance to set up Typescript for their sample components, stories and update jest configurations to support TS.
Technologies Used: Javascript, Typescript, Jest, React Native
![](/blog-images/b80467df-730b-4cb1-b1a0-d83ad674c8ac.jpeg align="center")