Application Security Researcher — Build Real Protections

Symbiotic Security; Paris; Hybride; EUR 60 000 - 80 000; Plein temps

Avantages offerts par ce poste

Competitive salary and equity options

Health insurance fully covered

Swile meal card for lunch breaks

RTT days on top of standard paid vacation

Sustainable commuting allowance

Major opportunities for career advancement

Résumé du poste

A cybersecurity startup in Paris seeks a Mid-Senior Cybersecurity Researcher to design and improve protections against vulnerabilities in developer workflows. You will utilize your experience in cybersecurity and programming to collaborate with product and engineering teams, create actionable defenses, and contribute to community knowledge sharing. The role offers a competitive salary, health insurance, and opportunities for professional growth in a vibrant company culture.

Qualifications

• 2–3+ years in a cybersecurity role.
• Strong ability to read and write code in one or more languages.
• Experience with SAST, linters, SIEM, IDS/IPS.

Responsabilités

• Design, implement, and iterate on concrete defenses.
• Integrate protections into developer workflows.
• Turn offensive findings into defensive controls.
• Build reproducible PoCs demonstrating attacks.
• Collaborate with product and engineering teams.
• Measure and improve effectiveness of defenses.
• Contribute to knowledge sharing and community presence.

Connaissances

Experience in cybersecurity (offensive, defensive, or mixed)

Programming skills

Defensive design experience

Creativity in security control development

Communication skills in French and English (B2)

Description du poste

A cybersecurity startup in Paris seeks a Mid-Senior Cybersecurity Researcher to design and improve protections against vulnerabilities in developer workflows. You will utilize your experience in cybersecurity and programming to collaborate with product and engineering teams, create actionable defenses, and contribute to community knowledge sharing. The role offers a competitive salary, health insurance, and opportunities for professional growth in a vibrant company culture.