Muhannad Ajjan
Senior Backend Developer at Visma
Haarlem, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolMuhannad Ajjan is a Senior Backend Developer with 11 years of experience building scalable web, mobile and IoT systems across startups and product teams, currently driving backend work at Visma in the Netherlands. He blends hands-on backend and infrastructure expertise with a hardware tinkerer’s mindset—regularly wiring circuits and building BLE IoT devices alongside serverless and cloud architectures. At dKilo he designed a high-performance Laravel backend, serverless hosting for millions of users and a CI/CD pipeline; later roles at Studocu extended that focus into cloud infrastructure and platform reliability. An active open-source contributor, he has improved front-end UX and security for community tools like an app privacy policy generator, adding Markdown export, SRI hashes and CDN integrations. Curious and pragmatic, he pairs practical engineering trade-offs with documented processes that reduce time-to-deploy and simplify operations.
12 years of coding experience
13 years of employment as a software developer
Bachelor of Science (BS), Bachelor of Science (BS) at Cairo University
English, Arabic, Dutch
Stackoverflow
768reputation
634kreached
28answers
0questions
Github Skills (18)
javascript10
web-application10
front-end-development10
vue10
html10
vue-jsx10
markdown9
css9
markdown-it9
iframe6
delay6
laravel-passport6
access-token6
refresh-token6
php6
Programming languages (25)
Github contributions (5)
nisrulz/app-privacy-policy-generator
Sep 2018 - Sep 2018
Generate a customized Privacy Policy and Terms of Use document for your mobile apps
Role in this project:
Front-end Developer
Front-end DeveloperContributions:7 commits, 3 PRs, 8 comments in 6 days
Contributions summary:Muhannad focused on enhancing the user interface and functionality of the privacy policy generator. They added the ability to download the generated policy in Markdown format, and enhanced the HTML output by setting the title based on the document's first h2, and ensuring valid HTML structure. They also integrated third-party services, specifically adding Facebook as a potential privacy policy component. Additionally, the user implemented SRI hashes and used cloudflare cdn where possible to improve page performance and security, and improved IE11 compatibility.
mobile-applicationprivacypolicygeneratorwebapp
iSWORD/boo
Jan 2022 - Mar 2025
demo repo to reproduce a bug in github PR search by status
Contributions:12 PRs, 1 push, 6 branches in 3 years 2 months
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