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Founding Engineer - Cybersecurity Researcher (Senior)
Founding Engineer - Cybersecurity Researcher (Senior)Fenrir Security Private Limited • tirunelveli, tamil nadu, in
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Founding Engineer - Cybersecurity Researcher (Senior)

Founding Engineer - Cybersecurity Researcher (Senior)

Fenrir Security Private Limited • tirunelveli, tamil nadu, in
3 days ago
Job description

Job Description

  • Location : Remote (India preferred)
  • Engagement : Full-time
  • Compensation : ₹9-13 LPA + ESOP

Role Snapshot

  • Lead security research initiatives and work directly with the founding team to architect and scale APS (Autonomous Pentesting Solution), our flagship product that's redefining security testing with AI.
  • Drive complex VAPT engagements, mentor the security team, and define the technical roadmap for autonomous security testing.
  • Expect end-to-end ownership of product security features, strategic decision-making, and direct influence on company direction.

    • What You'll Tackle

  • Lead and execute end-to-end VAPT engagements across web applications, mobile apps, APIs, thick clients, and cloud infrastructure for high-profile clients.
  • Architect core security modules within APS, designing and implementing advanced AI / LLM-driven vulnerability detection and exploitation systems.
  • Conduct original vulnerability research, discover zero-days, and develop sophisticated exploitation techniques and attack chains.
  • Lead technical discussions with clients, deliver executive-level security reports, and provide strategic remediation guidance.
  • Mentor junior researchers and interns, conduct code reviews, and establish security research best practices.
  • Drive the product roadmap by identifying new attack vectors, emerging threats, and innovative approaches to autonomous pentesting.
  • Collaborate with the founding team on strategic initiatives, partnerships, and scaling the security research function.

    • What Makes You a Strong Fit

  • 2-3 years of hands-on experience in penetration testing, security research, or offensive security roles with proven track record.
  • Expert-level understanding of web, mobile, API, and thick client security with deep exploitation expertise across multiple attack surfaces.
  • Notable achievements on Bugcrowd, HackerOne, or similar platforms (Hall of Fame, high-severity findings, or CVE contributions strongly preferred).
  • Strong presence in the CTF community with top rankings, team leadership, or writeup contributions.
  • Advanced proficiency with security tools and custom tool development (Burp Suite, Metasploit, Frida, custom Python frameworks).
  • Demonstrated ability to discover and chain complex vulnerabilities for high-impact exploitation.
  • Experience with cloud security (AWS / Azure / GCP), container security, or infrastructure pentesting.
  • Strong Python development skills with portfolio of security automation tools or open-source contributions.
  • Industry certifications such as OSCP, OSWE, OSEP, CPTS, or equivalent demonstrated expertise.
  • Published security research, blog posts, conference presentations, or technical writeups.
  • Excellent communication skills with ability to explain complex technical concepts to both technical and non-technical audiences.
  • Proven leadership experience mentoring junior security professionals or leading technical initiatives.

    • Interview Process

  • Founder Call (45 min) — career trajectory, technical vision, culture add.
  • Technical Assessment (72 h) — advanced multi-stage security challenge covering complex attack scenarios.
  • Security Lead Round (90 min) — comprehensive technical deep dive, solution walkthrough, and strategic discussion.
  • Offer Letter

    • What You'll Gain

  • Leadership opportunity with direct impact on product strategy and company direction.
  • Work closely with founders to build and scale a cutting-edge security product from the ground up.
  • Exposure to cutting-edge AI / LLM integration in cybersecurity and opportunity to push the boundaries of autonomous security testing.
  • Significant equity stake in a fast-growing security startup with strong market potential.
  • Freedom to pursue original research, publish findings, and represent the company at security conferences.
  • Competitive compensation package with performance-based growth opportunities.
  • Flexible work arrangements and autonomy to drive technical decisions.

    • How to Apply

    Email hr@fenrir-security.com with :

  • Resume or LinkedIn profile.
  • Bugcrowd, HackerOne, HackTheBox, TryHackMe profile links with notable achievements.
  • Portfolio of security work (GitHub, published research, CVEs, blog posts, conference talks, or significant vulnerability disclosures).
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    Cybersecurity Engineer • tirunelveli, tamil nadu, in