Senior Security Researcher

Description

At Cobalt.io, as a Senior Security Researcher, you will conduct advanced vulnerability research and security assessments across modern application and operating system stacks, cloud infrastructure, and critical enterprise systems.

Your role focuses on identifying impactful security flaws, developing potential exploit techniques, and collaborating with cross-functional teams to strengthen customer security postures. Operating within Cobalt’s Offensive Security Research team, you will bridge the gap between cutting-edge adversary tradecraft, platform-driven security testing, and actionable remediation guidance.

What You’ll Do

• Advanced Vulnerability Research: Conduct deep-dive vulnerability research, reverse engineering, and threat analysis across modern Web/API platforms, mobile operating systems, low-level OS stacks, cloud infrastructures (GCP/AWS/Azure/K8s), and critical enterprise software systems.
• Exploit Crafting & Proof-of-Concept Validation: Identify high-impact vulnerabilities and novel attack surfaces; develop proof-of-concept (PoC) exploit techniques to demonstrate real-world risk cleanly and accurately.
• Methodology & Tradecraft Innovation: Research emerging threat vectors and maintain industry-leading testing guidelines across cloud environments, APIs, mobile platforms, and modern AI/ML technologies.
• Platform & Tooling Enhancements: Collaborate with Product and Engineering teams to translate research findings into scalable security assessment capabilities, automated testing workflows, and platform intelligence.
• Cross-Functional Collaboration: Partner with engineering, product, and operations teams to translate complex security research into actionable customer value and platform improvements.
• Community Enablement & Mentorship: Provide technical guidance, benchmarking, and mentorship to junior researchers and community members; assist in technical quality assurance for complex research initiatives.
• Thought Leadership & Public Outreach: Represent Cobalt in the security research community through high-impact technical blog posts, advisories, whitepapers, and conference presentations (e.g., DEF CON, Black Hat, BSides).

You Must Have

• 5+ years of dedicated experience in offensive security, vulnerability research, penetration testing, red teaming, or reverse engineering (or 3+ years with