Freelancer profile translated to English.
Back to original languageAbout Djikay
I am an independent engineer specializing in the design of robust Full-Stack web applications, the integration of Artificial Intelligences, and security auditing (Pentest). My goal is to deliver high-performance, scalable, and natively protected solutions against cyber threats.
French
Fluent
English
Basic
Remote only
Primarily works remotely
Experience
- CyberZonePentester & DevSecOpsTECHJanuary 2024 - Today (2 years and 7 months)Douala, CameroonAs a certified Pentester at CyberZone, I am responsible for identifying and exploiting information system vulnerabilities to strengthen the security posture of clients and the company's internal products.Main missions:• Conducting comprehensive security audits (manual and automated penetration tests) on web applications, APIs, and infrastructures.• Identifying and exploiting critical vulnerabilities (OWASP Top 10, SQL injection, XSS, weak authentication, etc.).• Integrating DevSecOps practices into the development cycle (security from design, automated scans, secure code review).• Developing and improving internal tools for anomaly detection and security testing.• Writing detailed, clear, and actionable audit reports for technical teams and management.• Training and raising developers' awareness of security best practices.• Contributing to the design of secure solutions, particularly on the VoteSecure project (highly secure electronic voting system).Key achievements:• Successfully obtained CyberZone Certified Pentester (CCP) certification.• Integration of AI (scikit-learn) for automatic detection of fraud and anomalies in activity logs.• Significant strengthening of critical platform security through measures such as JWT, anti-bruteforce, simulated blockchain hashing, and reCAPTCHA.• Active participation in the cybersecurity strategy of the fast-growing startup.This experience allows me to combine advanced technical skills in pentesting with a DevSecOps vision, blending secure development and offensive penetration testing.
- Projet VoteSecureFull-Stack Developer & IT AdministratorJanuary 2024 - June 2025 (1 year and 5 months)• Node.js/Express + PostgreSQL + React/TailwindCSS Architecture - 1,000+ secure transactions tested.• Security: JWT, anti-bruteforce, reCAPTCHA, blockchain hashing, audit logs - vulnerabilities reduced by 95%.• AI: Isolation Forest (fraud) + HuggingFace/FastAPI zero-shot NLP; Botpress chatbot; Chart.js monitoring.
- Bridge ConnectorFull-Stack Developer InternJune 2022 - December 2023 (1 year and 6 months)• Ticket booking app (HTML5/Bootstrap/PHP/MySQL) - 500+ active users; loading reduced by 40%.• MySQL database optimization, JavaScript UX improvement, incident management, and technical support.
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Education
- Software Engineering DegreeIUT2024Licence Génie Logiciel
- Software Engineering BTSIUG2021BTS Génie Logiciel