Remote Protocol Security Researcher — DeFi & AI Tools

Jobgether; France; À distance; EUR 120 000 - 190 000; Plein temps

Avantages offerts par ce poste

Remote-first

Global exposure

Impactful work

Cross-functional collaboration

AI tooling

Résumé du poste

Jobgether is seeking a Protocol Security Researcher based in France to help build and strengthen an internal protocol security function within a globally distributed engineering environment. You will review significant protocol and smart contract changes, conduct attacker-driven research, and influence security decisions early in architecture discussions.

You will collaborate with engineers, security specialists, monitoring teams, incident responders, and external auditors to reduce risks across

Qualifications

• 5+ years of security experience with a focus on smart contract and protocol security.
• Ability to review complex codebases and reason about protocol-level failures.
• Strong adversarial mindset and ability to explain exploit scenarios.
• Understanding of DeFi mechanisms (lending, oracles, governance, etc.).
• Experience using AI to enhance security research/reviews.
• Excellent written and verbal communication for technical and non-technical stakeholders.
• Sound judgment on severity, exploitability, impact, and relevance.
• Experience with formal methods, fuzzing, invariant testing, or security tooling is a plus.
• Experience developing internal tools for security reviews or knowledge management is valued.
• Experience collaborating with external audit firms or leading audit engagements is advantageous.
• Familiarity with governance payloads, upgrade mechanisms, permissioning systems, and incident response is beneficial.
• Open-source security research or bug bounty experience is a plus.
• Candidates who do not meet every requirement but bring relevant security expertise are encouraged to apply.

Responsabilités

• Review significant protocol and smart contract changes before external audits or production deployment.
• Conduct attacker-driven security research across smart contracts, protocol mechanisms, integrations, and related infrastructure.
• Participate in architecture and design discussions early enough to influence security-critical decisions.
• Investigate risks across adjacent systems, including assets, bridges, oracles, adapters, and other critical dependencies.
• Analyze potential protocol-level failure modes and translate technical concerns into concrete exploitation scenarios, impact assessments, and mitigation strategies.
• Develop and contribute to AI-assisted security tooling, while evaluating its effectiveness in real-world security review workflows.
• Convert security findings into reusable knowledge, invariants, assumptions, tests, monitoring strategies, and other durable security practices.
• Collaborate with monitoring and incident response teams when identified risks require operational detection or response mechanisms.
• Work alongside external auditors to help define audit scope, communicate known risks, and highlight areas requiring particular attention.

Connaissances

Smart contract security

Protocol security

Adversarial mindset

AI-assisted security

Security research

Communication skills

Outils

Formal methods

Fuzzing

Invariant testing

Security tooling

Audit collaboration

Description du poste

Jobgether is seeking a Protocol Security Researcher based in France to help build and strengthen an internal protocol security function within a globally distributed engineering environment. You will review significant protocol and smart contract changes, conduct attacker-driven research, and influence security decisions early in architecture discussions.

You will collaborate with engineers, security specialists, monitoring teams, incident responders, and external auditors to reduce risks across