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I’m Elyse, a Security and Software Engineer passionate about building resilient systems that stay reliable even under adversarial pressure. While talking about security engineering, I focus on penetration testing to proactively uncover application flaws, validate scoring confidence, and design alerting mechanisms that prevent attackers from gaining blind trust through false outputs. Whereas as a software engineer, I build robust backends for critical infrastructure, ensuring strict data integrity and hardening human-in-the-loop workflows against manipulation.…I’m Elyse, a Security and Software Engineer passionate about building resilient systems that stay reliable even under adversarial pressure. While talking about security engineering, I focus on penetration testing to proactively uncover application flaws, validate scoring confidence, and design alerting mechanisms that prevent attackers from gaining blind trust through false outputs. Whereas as a software engineer, I build robust backends for critical infrastructure, ensuring strict data integrity and hardening human-in-the-loop workflows against manipulation.

Elysé Joyeux

Software Engineer, Full Stack Developer, UI Designer

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I’m Elyse, a Security and Software Engineer passionate about building resilient systems that stay reliable even under adversarial pressure. While talking about security engineering, I focus on penetration testing to proactively uncover application flaws, validate scoring confidence, and design alerting mechanisms that prevent attackers from gaining blind trust through false outputs. Whereas as a software engineer, I build robust backends for critical infrastructure, ensuring strict data integrity and hardening human-in-the-loop workflows against manipulation.…I’m Elyse, a Security and Software Engineer passionate about building resilient systems that stay reliable even under adversarial pressure. While talking about security engineering, I focus on penetration testing to proactively uncover application flaws, validate scoring confidence, and design alerting mechanisms that prevent attackers from gaining blind trust through false outputs. Whereas as a software engineer, I build robust backends for critical infrastructure, ensuring strict data integrity and hardening human-in-the-loop workflows against manipulation.

Available to hire

I’m Elyse, a Security and Software Engineer passionate about building resilient systems that stay reliable even under adversarial pressure. While talking about security engineering, I focus on penetration testing to proactively uncover application flaws, validate scoring confidence, and design alerting mechanisms that prevent attackers from gaining blind trust through false outputs. Whereas as a software engineer, I build robust backends for critical infrastructure, ensuring strict data integrity and hardening human-in-the-loop workflows against manipulation.

Skills

Experience Level

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

French

Intermediate

Kinyarwanda

Advanced

Work Experience

Security Engineer at UMUCYO AI

August 1, 2026 - Present

Ensured the system’s human-in-the-loop safeguards remain resilient against adversarial manipulation and social engineering-style exploitation. Worked on securing feedback loops that teach users when to challenge the AI’s recommendations, and implemented measures to prevent malicious actors from bypassing critical safety checks. Focused on improving defensive logic such as secondary explanation engines, confidence/scoring algorithms, and user-alerting mechanisms that reduce the risk of attackers tricking operators into blindly trusting false outputs. Emphasized strong data integrity controls to protect the training/feedback pipeline from tampering.