Pentera · 3 weeks ago
Cyber Researcher, Attack Simulation (Senior / Principal)
Denver, CO
Full-time
Hybrid
Senior Level, Lead/Staff
$180K/yr - $220K/yr
5+ years expPentera is the global leader in Automated Security Validation, helping organizations worldwide safely emulate real-world attacker behavior and uncover their true security gaps across on-prem, cloud, and hybrid environments. They are seeking a Cyber Researcher to join their R&D team, focusing on conducting deep technical research into attacker techniques and developing automated attack simulations that reflect real-world attacker behavior.
Cloud SecurityCyber SecurityInformation TechnologyNetwork SecurityPenetration TestingSecuritySoftware
Responsibilities
Conduct in-depth research into attacker techniques across Windows, Linux, identity systems, cloud environments, and external attack surfaces
Design and develop advanced attack simulation techniques that challenge modern security controls and defensive architectures
Translate research findings into scalable, production-ready capabilities within Pentera’s automated validation platform
Architect and implement decision-making logic that enables dynamic attack paths and adaptive behavior during automated operations
Develop high-quality code that powers complex attack simulations, using appropriate languages and technologies for each use case
Collaborate closely with R&D, engineering, and product teams to integrate new research into the platform
Mentor team members and contribute to a culture of technical excellence, curiosity, and continuous learning
Qualification
Required
5+ years of hands-on experience in security research, penetration testing, or adversarial security engineering
Strong knowledge of Windows internals, operating systems, networking, and enterprise environments
3+ years of experience developing in Python
Proven ability to write efficient, stealth-aware, and production-quality security-related code
Experience with security research tools and frameworks such as Metasploit, Impacket, Nmap, Burp, or similar
Proficiency in reverse engineering and debugging using tools such as IDA, Ghidra, WinDBG, or Radare2
Experience working with cloud platforms such as AWS and Azure
Ability to apply AI or machine learning concepts to decision-making, automation, or behavior modeling within complex systems
Strong collaboration skills, adaptability, and a fast learning mindset
Preferred
Experience modeling attacker decision-making, attack paths, or adversarial behaviors
Familiarity with graph-based analysis, pathfinding, or automated reasoning systems
Hands-on experience with security product development and large-scale platforms
Exposure to AI-driven automation, agent-based systems, or adaptive workflows
Bachelor's degree in Computer Science or a related technical field
Benefits
Performance-based bonuses
Equity opportunities
Health and wellness benefits
Retirement plans
Other perks designed to support long-term growth and well-being
Company
Pentera
Pentera is the market leader in Automated Security Validation
201-500 employees
H1B Sponsorship
Pentera has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (2)
Funding
Current Stage
Late StageTotal Funding
$249.5MKey Investors
Evolution Equity PartnersDelta-v CapitalK1 Investment Management
2025-03-12Series D· $60M
2023-06-28Secondary Market
2022-01-11Series C· $150M
Leadership Team
Amitai Ratzon
Chief Executive Officer
Arik Liberzon
Founder & CTO
Recent News
2025-11-19
Company data provided by crunchbase