Ahmed Bahajjaj
Senior Backend Engineer at Coupang
Singapore, Singapore
Summary
🤩
Rockstar🎓
Top SchoolAhmed Bahajjaj is a Senior Backend Engineer based in Singapore with seven years’ experience building user-centric, secure, and automated systems across startups and large tech firms. He has applied his full-stack chops to open-source education tooling like the widely used TEAMMATES project, contributing both front-end UI fixes and back-end Java/TypeScript integrations. His background spans digital forensics and security roles in public agencies through to backend engineering at TikTok and Coupang, giving him a strong operational mindset for building reliable, auditable services. Known for continuous learning, he pairs pragmatic engineering with interests in information security and automation to improve user outcomes. Outside core backend work he also consults on growth, reflecting a blend of technical depth and product sensitivity.
7 years of coding experience
8 years of employment as a software developer
Diploma with Merit Computer Engineering, Diploma with Merit Computer Engineering at Temasek PolytechnicMulti/Interdisciplinary Studies, Multi/Interdisciplinary Studies at NUS University Scholars ProgrammeBachelor of Computing Computer Science, Bachelor of Computing Computer Science at National University of Singapore
Github Skills (15)
javas10
javascript10
api10
backend10
front-end-development10
back-end-development10
apidoc10
java10
angular10
typescript-types9
testing9
typescript9
typescripts9
html9
css9
Programming languages (7)
Github contributions (5)
TEAMMATES/teammates
Dec 2019 - May 2022
This is the project website for the TEAMMATES feedback management tool for education
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:35 releases, 207 reviews, 93 commits in 2 years 5 months
Contributions summary:Ahmed contributed to both the front-end and back-end of the TEAMMATES project. They addressed UI issues by modifying HTML and CSS for the Instructor Homepage and Login Dropdown. Furthermore, they implemented and integrated a new API output type, which required modifying both Java backend code (Java and Java tests) and the TypeScript front-end files. The user demonstrated proficiency in multiple technologies that make up the MEAN stack.
cssjavascriptteammatesfeedback-systemsproject-website
CS3219-SE-Principles-and-Patterns/cs3219-ay2021-s1-project-2020-s1-g11
Sep 2020 - Nov 2020
Conference Data Visualisation Management System
Contributions:1 release, 9 reviews, 67 PRs in 1 month
management-systemdata-visualisationvisualisation
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