Principal Offensive Cyber Research Engineer

About the Company

America is under sustained cyber attack. Our adversaries infiltrate our networks, steal our IP, and degrade the digital infrastructure that modern life runs on. They’ve learned—correctly—that those attacks rarely produce consequences.

Twenty was founded to change that, by making our adversaries think twice before they attack us. Our vision is American and allied primacy in cyberspace—a future where they cannot contest us, deterrence is assured, and the free world remains secure.

Founded in 2024, Twenty Technologies ((Use the "Apply for this Job" box below).) industrializes offensive cyber operations for the U.S. and its allies. Headquartered in Arlington, Virginia, Twenty has raised $138M from Accel, Caffeinated Capital, Friends & Family Capital, Point
72 Ventures, General Catalyst, and In-Q-Tel.

You will serve as the preeminent technical authority for Twenty’s offensive cyber research program—setting the long-term vision, raising the bar on technical execution, and driving breakthroughs in adversary emulation and attack automation. Your work will shape how we build and standardize offensive capabilities that support real-world national security outcomes. You’ll partner closely with engineering, product, and operations leaders, and you’ll regularly advise executive leadership and government stakeholders on strategy, technical risk, and capability evolution.

• You’re motivated by mission-driven work that helps defend democracies in the cyber domain.

• You set a high technical bar and raise it—through clear standards, strong reviews, and hands‑on mentorship.

• You’re calm under pressure and comfortable making high‑stakes decisions with incomplete information.

• You think in systems: tradeoffs, second‑order effects, operational constraints, and long‑term maintainability.

• You have the presence to influence executives and senior government stakeholders without overselling.

• You balance innovation with operational discipline—prioritizing safety, rigor, and responsible stewardship.

• You communicate with precision: crisp written artifacts, clear technical narratives, and direct feedback.

• Define and drive the long‑term technical vision and roadmap for Twenty’s offensive cyber research and capabilities.

• Serve as the principal technical advisor to executive leadership on strategy, capability development, and technical risk.

• Lead groundbreaking research into advanced adversary behaviors and next‑generation offensive cyber techniques.

• Establish company‑wide standards, frameworks, and best practices for offensive tooling and engineering quality.

• Architect and guide development of advanced adversary emulation and attack automation systems built for scale.

• Lead technical governance (e.g., architecture reviews) and provide authoritative guidance on complex decisions.

• Mentor Staff and Senior engineers, build growth plans, and strengthen the organization’s technical leadership bench.

• Recruit, interview, and assess top‑tier offensive cyber talent to build and sustain world‑class teams.

• Lead technical engagements with senior government stakeholders—translating complex capabilities into decision‑grade clarity.

• Build strategic research partnerships across government, academia, and industry to accelerate innovation and impact.

• You have 8–12 years of distinguished experience across offensive cyber operations, advanced research, and software development.

• You have served in senior technical leadership roles in one or more of: government/military DNEA, Exploitation Analyst (EA) operations, elite red teams, or nation‑state threat research.

• You have defined technical strategy and led large‑scale initiatives that shipped durable, high‑impact capabilities.

• You have expert‑level understanding of adversary behaviors and TTPs, including deep familiarity with MITRE ATT&CK.

• You have demonstrated technical judgment in designing complex, scalable systems and establishing engineering standards.

• You have led and mentored senior engineers, including setting expectations, running technical reviews, and developing talent.

• You have strong executive and customer communication skills, with experience briefing senior leaders and shaping…