Security Researcher

Twenty is seeking an innovative Associate Cyber Security Research Engineer for an in-office position in its Arlington, VA office with strong research skills, software development, and offensive security expertise to join our mission of defending democracies. In this role, you'll develop and automate sophisticated attack paths, leverage machine-speed data processing, and create tools that advance our cyber and electromagnetic capabilities. We're looking for someone who combines practical development skills with a deep understanding of adversarial techniques to help build the next generation of cyber technologies for the United States and its allies.

About the Company

At Twenty, we're taking on one of the most critical challenges of our time : defending democracies in the digital age. We develop revolutionary technologies that operate at the intersection of cyber and electromagnetic domains, where the speed and complexity of operations exceeds human cognition. Our team doesn't just solve problems – we deliver game-changing outcomes that directly improve national security. We're pragmatic optimists who understand that while our mission of defending America and its allies is challenging, we can succeed.

Role Details

Attack Path Development & Implementation

Design and implement sophisticated attack paths that emulate real-world adversary behaviors and TTPs

Create modular, reusable components for common attack techniques and lateral movement methods

Develop custom tools and scripts to support attack path execution and validation

Data Analysis & Enrichment

Research and evaluate diverse data sources for enhancing attack path effectiveness

Implement data enrichment pipelines to augment existing datasets with threat intelligence

Automation & Tool Development

Automate common red team tools and techniques for scalable deployment

Develop custom extensions and modules for industry-standard red team frameworks

Create efficient workflows for repetitive security testing procedures

Data Engineering & Processing

Design and implement parsers for various data formats including logs, network traffic, and threat feeds

Create ETL pipelines for processing security-relevant data at scale

Develop standardized schemas for structured and unstructured security data

Build data validation and cleansing mechanisms

Implement efficient storage and retrieval systems for processed data

Qualifications

Technical Skills & Experience

3+ years of threat research and coding experience

Deep understanding of the MITRE ATT&CK framework with practical experience mapping and implementing common adversary TTPs (Tactics, Techniques, and Procedures)

Proven experience operating industry-standard threat emulation platforms and command & control frameworks, including development of custom payloads and modules

Track record of integrating and analyzing threat intelligence data sources to enhance detection and response capabilities

Demonstrated proficiency in implementing and detecting advanced persistence mechanisms, defense evasion techniques, and counter-forensic methods

Strong containerization experience using Docker, including creating secure, production-ready containers and managing multi-container applications with Docker Compose

Advanced programming skills in Python and / or Golang, with emphasis on developing security tools and automation frameworks

Experience writing complex graph queries and traversals for analyzing relationships in large datasets, preferably with Neo4j or similar graph databases

Strong background in API development and integration, including designing, implementing, and consuming RESTful services with proper security controls

Comprehensive knowledge of cybersecurity principles including network security, application security, and secure coding practices

Practical experience in offensive cyber operations, including payload development, post-exploitation, and lateral movement techniques

Demonstrated expertise in red team methodologies, including campaign planning, OPSEC considerations, and adversary emulation based on real-world threats

Education

Bachelor's degree in Computer Science, Software Engineering, or related field, or equivalent practical experience

Security Requirements

Must be eligible to obtain and maintain a U.S. Government security clearance

Distinguishing Qualifications

Track record of delivering complex technical solutions in defense or security contexts

Experience with AI / ML integration in operational systems

Background in developing tools for cyber operators or security analysts

Experience with large-scale data processing and analysis

Additional Skills

Experience with Agile development methodologies

System architecture and design experience

Performance optimization and scalability experience

Open-source contributions or personal projects demonstrating relevant skills