Columbia, MD On-site Employment

Percival Engineering is hiring a Cyber (CNO) Software Developer

About the Role

The role involves developing custom software solutions for cyber network operations, including tool development, vulnerability research, and reverse engineering to support mission objectives in a high-security setting.

Responsibilities

  • Design and build software tools for cyber network operations
  • Conduct vulnerability analysis and exploit development
  • Perform reverse engineering on binary software
  • Develop custom payloads and implants
  • Analyze network protocols and traffic patterns
  • Create proof-of-concept exploits for identified vulnerabilities
  • Write secure, efficient, and maintainable code
  • Collaborate with team members on technical solutions
  • Maintain operational security during development
  • Test and validate tool functionality in controlled environments
  • Document technical designs and implementation details
  • Stay current with emerging cybersecurity threats
  • Apply knowledge of operating system internals
  • Work with low-level programming languages
  • Optimize code for performance and stealth
  • Support integration of tools into operational frameworks
  • Troubleshoot and debug complex software issues
  • Adapt tools to evolving mission requirements
  • Follow secure coding practices
  • Participate in peer code reviews
  • Develop automated testing routines
  • Interface with hardware and firmware components
  • Analyze anti-analysis techniques
  • Design modular and reusable software components
  • Ensure compliance with security policies

Nice to Have

  • Master’s degree in computer science or related field
  • Experience in red team operations
  • Background in malware analysis
  • Knowledge of advanced persistent threats
  • Experience with firmware or embedded systems
  • Familiarity with anti-forensic techniques
  • Publication in security research venues
  • Participation in capture-the-flag competitions
  • Knowledge of mobile platform internals
  • Experience with kernel-level development
  • Understanding of side-channel attacks
  • Proficiency in Rust or Go
  • Experience with cloud infrastructure
  • Knowledge of hardware reverse engineering
  • Active security clearance

Compensation

Competitive salary and benefits package offered based on experience and qualifications.

Work Arrangement

On-site

Team

Work within a specialized technical team focused on advanced cyber capabilities and software innovation.

Security Requirements

  • Applicants must be able to pass a thorough background investigation.
  • Position requires eligibility for access to sensitive information.
  • Candidates must meet strict security eligibility criteria.

Work Environment

  • Work is conducted on-site with no remote options.
  • Facility access is restricted and controlled.
  • All work must comply with operational security protocols.

This position does not include sponsorship for employment visas.

About company
Percival Engineering

Percival is a Service Disabled Veteran Owned Small Business that was founded in 2016 by Sam Ely, a U.S. Air Force Veteran of Operation Iraqi Freedom. In addition to building the team with a people first focus, the company is also defined by a spirit of resilience and perseverance. Remembering the gas explosion in August 2019 that destroyed the company’s first office (thankfully no injuries) – the event solidified a resolve to overcome challenges and ensure stability and success for the team and mission.

Embracing top talent, innovation, and perseverance, Percival provides complete solutions to our customers – from concept to execution as well as ongoing maintenance. We believe that dedicating time early in the process to fully understand our customer’s needs is time well invested, and paramount to the future success of each project.

Leveraging the team’s evolving expertise, our areas of focus include vulnerability analysis and research, system emulation, software engineering, reverse engineering, embedded development, and cyber security.

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Posted a month ago