Lead Software Engineer
About Md Maruf Billah
Lead Software Engineer with 5+ years building production web applications in JavaScript and TypeScript for clients in France, the UK, Germany and the rest of Europe. Shipped 1,500+ A/B experiments over 3 years for a global luxury group, wrote 500k+ lines of code, led full-stack delivery of HR, KPI and QA-analytics platforms, and built the back end of a multi-vertical travel platform. Currently lead a team of 10 engineers, owning architecture, code review and client communication.
Prefer on-site roles in Bangladesh or relocation abroad.
In numbers
5+
years shipping production software
1,500+
A/B experiments built and shipped
500k+
lines of JavaScript & TypeScript written
10
engineers in the team I lead
20+
luxury e-commerce brands I've built for
3 yrs
for a global luxury group in France
What I do
- Lead
- Lead a team of 10: architecture, code review, estimates, mentoring and client calls.
- Front end
- JavaScript and TypeScript with React and Next.js - from luxury e-commerce experiments to large dashboards.
- Back end
- Node.js and NestJS APIs on PostgreSQL: sync engines, KPI engines, ledgers and checkout flows.
- Cloud
- AWS (Lambda, EC2, S3, SES, CloudWatch, Amplify) and Azure, with CI/CD on GitHub Actions.
- Experimentation
- 1,500+ A/B tests on VWO, AB Tasty, Dynamic Yield and Kameleoon, plus the CLI the team builds them with.
See my experience, the projects I've built and my skills.
What I believe
- “I believe nothing is impossible.”
- “I believe languages are just syntax.”
- “I believe good code is code the next person can change.”
- “I believe an experiment beats an opinion.”
- “I ship small, ship often and measure everything.”
- “I believe simple is hard - and worth it.”
- “I treat every bug as a lesson.”
- “I believe the best teams make each other better.”
- “I stay curious, keep learning and keep shipping.”
Education
BSc in Computer Science and Engineering - North South University, 2021
Shikkha - a learning management system (Laravel) with a WebRTC video-class module (Node.js, Socket.IO, PeerJS). Wrote 136 of 233 commits in a team of 4: faculty, admin and institution dashboards and the video room.
Continued learning: The Ultimate React Course, Advanced CSS and Sass, Complete Node.js Bootcamp, The Complete JavaScript Course
Languages
- Bengali - Native
- English - Full professional (C1)
What people say
“He's an exceptional developer, incredibly thorough, and always available to help.”
“He consistently went above and beyond to ensure that our CRO projects were not only successful but also innovative.”
“His ability to come up with effective solutions is remarkable.”
“A great communicator who is able to explain complex technical concepts in a way that is easy for non-technical stakeholders to understand.”
“When he started, he didn't know much about Javascript, but now he's one of the best Javascript developers in our team.”
“His work is top-notch, making our in house projects look great and function smoothly.”
“Maruf is a true team player. He goes above and beyond to assist his colleagues, offering support and guidance whenever needed.”
“His expertise in JavaScript, React.js, and CRO is truly impressive.”
“From making Android apps to AB Testing he's absolutely crushed it.”
“Devoted and passionate! Always finds a way around.”