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About the Role
Twenty builds offensive cyber capabilities for the United States and its allies. This role involves investigating emerging techniques, building and testing research prototypes, and developing reusable tools to help operators understand and exercise complex attack paths. You will connect technical research to real mission needs and carry promising ideas through implementation.
Responsibilities
- Research adversary techniques and translate findings into practical tools, prototypes and engineering requirements.
- Build reusable software for adversary emulation and attack-path analysis, with an emphasis on testing, maintainability and operational usefulness.
- Develop and evaluate technical approaches, explaining their tradeoffs and limitations.
- Analyze and enrich intelligence and operational datasets, including graph-based relationships, and work with data engineering to turn findings into reusable research capabilities.
- Collaborate with operators and analysts to identify gaps, validate results and incorporate feedback.
- Document findings and technical decisions, participate in code reviews, and contribute to reliable development practices.
Requirements
- 2–5 years of relevant experience in offensive cyber, security research or software development, including building working tools.
- Hands-on experience in at least one of government or military cyber operations, penetration testing or red teaming, or threat hunting and intelligence.
- Proficiency in Python or Go and experience building maintainable security tooling or automation.
- Experience analyzing and combining cyber or threat-intelligence datasets, using data-science techniques to test hypotheses and build useful analytical tools.
- An understanding of adversary techniques, network and application security, and frameworks such as MITRE ATT&CK.
- The ability to investigate unfamiliar problems, test hypotheses and communicate both evidence and limitations.
- The ability to explain technical findings to engineers, analysts and operators.
- A degree in computer science, software engineering or cybersecurity, or equivalent practical experience.
- U.S. citizenship is required.
- An active security clearance is not required.
Skills
- Python
- Go
- MITRE ATT&CK
- Digital Network Exploitation Analysis
- Exploitation Analysis
- Graph databases
- Graph queries
- Multi-source intelligence analysis
- Reverse engineering
- Vulnerability research
- Malware analysis
- Exploit development
- AI
- Machine learning
Location
- Arlington, Virginia
Work Type
- On Site
- Full Time
Experience Level
- 2-5 years
Education Level
- Degree in computer science, software engineering or cybersecurity, or equivalent practical experience.
- Relevant certifications
- Published research
- Open-source contributions
- Technical talks
Benefits
- Medical, dental, and vision plan options.
- Life / AD&D, disability coverage options.
- Paid parental leave for eligible full-time employees.
- Paid holidays and flexible PTO.
- 401(k) with pre-tax and Roth options.
- HSA/FSA options, dependent care FSA.
About the Company
- 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 (www.twenty.io) industrializes offensive cyber operations for the U.S. and its allies. Headquartered in Arlington, Virginia, Twenty has raised $168M from Khosla Ventures, Accel, Caffeinated Capital, Friends & Family Capital, Point72 Ventures, General Catalyst, and In-Q-Tel.
Equal Opportunity
- Twenty is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, veteran status, disability, or any other protected status, consistent with applicable law.
- If you need a reasonable accommodation during the hiring process, let us know and we will work with you.