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Two Six Technologies

Defense-focused tech firm delivering cyber solutions

Senior Software Developer

Full-Stack EngineeringConfirmed live in the last 24 hours
Full-timeHerndon, VA, USA$155.9k - $233.8k /yrIn-person

About the Job

Requirements

  • A bachelor's degree in computer science or a related technical discipline, or an equivalent combination of education, technical training, or work or military experience.
  • At least 6 years of experience in software development.
  • Deep understanding of software design and implementation in systems programming languages such as Rust, C, or C++.
  • Proficiency with web languages such as HTML, CSS, Vue, and JavaScript.
  • Proficiency with development tools such as Git for version control and JIRA for issue tracking.
  • Demonstrated experience across all major aspects of software development: design, coding, debugging, building, testing, and deploying.
  • Outstanding verbal and written communication skills to collaborate effectively with internal and external partners.
  • Active TS/SCI with Polygraph clearance.

Responsibilities

  • Design, develop, and debug mission-critical software applications and services.
  • Collaborate with product managers, designers, and other developers to define and deliver features.
  • Participate in or lead technical discussions analyzing requirements, design, and engineering practices.
  • Troubleshoot, debug, and optimize systems for performance and scalability.
  • Research and integrate new capabilities into the client application.
  • Contribute to the overall architecture of software solutions.

Desired Qualifications

  • Experience with graphics programming.
  • Experience with Windows programming.
  • Exposure to reverse-engineering tools and concepts.
  • Experience with TPM.
  • Experience with Amazon Web Services.
  • Understanding of Web Content Accessibility Guidelines Section 508 standards.

About the Company

Two Six Technologies

Defense-focused tech firm delivering cyber solutions

Two Six Technologies delivers advanced defense-focused tech through rapid R&D in cybersecurity, information operations, data science, electronic systems, mobility, and user experience for U.S. national security clients. Its products and services are built via project-based government contracts, creating custom tools (such as Pulse) tailored to mission needs. The company differentiates itself through direct government partnerships, interdisciplinary expertise, and a focus on delivering mission-ready, actionable solutions rather than generic tech. Its goal is to provide technological superiority for the United States and its partners by enabling rapid, impactful innovation that strengthens national security and defense capabilities.

Company size
501-1,000
Company stage
Early VC
Total funding
$67.9M
Headquarters
Arlington County, VA
Founded
2021

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