Skip to main content
Ammar UserAU
Looking for a job

Ammar User

@ammaruser7

Full Stack Developer at VINCI Energies — Axians building cybersecurity platforms, including Crystal Radar vulnerability intelligence.

Tunisia
Message

At VINCI Energies — Axians, I build cybersecurity platform features with Ruby on Rails and Angular. My work includes permission dashboards, real-time monitoring, and secure REST APIs.

I designed and deployed Microsoft Entra ID single sign-on and TOTP multi-factor authentication, and implemented an API gateway with JWT authentication, scope validation, rate limiting, and role-based access control. I also built an anomaly detection engine that identifies and blocks abusive API behavior.

I designed and built Crystal Radar, a vulnerability intelligence platform that collects and correlates security data from multiple sources. Its asynchronous pipelines support reliable ingestion, and a local LLM generates draft security bulletins while key vulnerability details are computed deterministically. Earlier, at Wildkard, I built responsive websites and web applications; during my internship at BIAT, I developed internal applications and an ETL workflow for document processing.

Experience

Work history, roles, and key accomplishments

VA
Current

Full Stack Developer

VINCI Energies — Axians

Jul 2023 - Present (3 years 3 months)

Build full stack features for cybersecurity platforms, including Ruby on Rails REST APIs and Angular/TypeScript interfaces. Designed and deployed IAM solutions with Microsoft Entra ID, OAuth2, and MFA, and implemented API security with JWT, RBAC, and rate limiting.

WI

Web Developer

Wildkard

Feb 2023 - May 2023 (3 months)

Built responsive websites and web applications with WordPress and JavaScript for international clients, focusing on mobile performance, cross-browser compatibility, SEO, and accessibility.

BI

Software Developer (Internship)

BIAT

Feb 2021 - May 2021 (3 months)

Developed secure internal web applications with Oracle APEX and PL/SQL. Built an ETL workflow with Talend and OCR to automate document processing, reducing manual data entry by about 30%.

Education

Degrees, certifications, and relevant coursework

Columbia Engineering (Columbia University) logoCU

Columbia Engineering (Columbia University)

Certification, AI Cybersecurity & Governance

Currently pursuing an online certification in AI Cybersecurity & Governance, expected to complete in 2026.

HE

Higher School of Digital Economy (ESEN)

Master’s Degree, E-Business

2021 - 2023

Pursued a Master's degree in E-Business, focusing on digital economy and business applications.

HE

Higher School of Digital Economy (ESEN)

Bachelor’s Degree, Computer Science

2018 - 2021

Completed a Bachelor's degree in Computer Science, building a strong foundation in software development and systems.

Interested in hiring Ammar?

You can contact Ammar and 90k+ other talented remote workers on Himalayas.

Message Ammar

People also viewed

View all talent

Get matched with your dream remote job

Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!

Sign up
Himalayas profile for an example user named Frankie Sullivan