Full Stack Software Engineer

SIXGEN; Sterling (VA); Remote; USD 90,000 - 185,000; Full time

Job summary

SIXGEN seeks a Full Stack Software Engineer to develop and maintain applications for government and critical infrastructure. Role demands expertise in front-end and back-end technologies and a commitment to innovative solutions in cybersecurity. The position offers flexible work arrangements along with competitive compensation and an inclusive work culture.

Benefits

Employer-paid health insurance premiums

401K with a 4% employer contribution

Flexible PTO and holiday schedule

Qualifications

• US Citizen with the ability to obtain security clearance.
• Experience in Linux-based environments.
• Knowledge of Agile/Scrum methodologies.

Responsibilities

• Design, develop, and maintain full stack applications.
• Collaborate with teams to deliver scalable software.
• Implement user authentication and secure communication features.

Skills

Proficiency in front-end technologies

Proficiency in back-end languages

Strong analytical skills

Collaboration skills

Tools

Git

Docker

Kubernetes

Job description

SIXGEN's mission is to deliver agile, mission-ready cybersecurity solutions that empower government and critical infrastructure organizations to stay ahead of advanced cyber threats. We combine innovation, deep expertise, and cutting-edge capabilities to uncover vulnerabilities, protect vital systems, and ensure operational superiority in an ever-evolving digital landscape.

Position: Full Stack Software Engineer

Job Type: Full Time

Location: Remote or Hybrid

Clearance Requirements: Secret or TS

Travel: Up to 10%

ABOUT THE TEAM

SIXGEN supports missions by serving government and commercial organizations as they overcome global cybersecurity challenges. In this position, you'll provide meaningful support to our customer's missions and operations. You'll work alongside a team of highly skilled operators who are dedicated to using innovative processes, tools, and techniques to get things done.

WHAT YOU'LL DO

• Design, develop, and maintain full stack applications, including both front-end interfaces and back-end services/APIs.
• Collaborate with cross-functional teams to gather requirements, define solutions, and deliver scalable, secure software.
• Write clean, efficient, and maintainable code using modern frameworks and programming languages.
• Implement data processing, user authentication, and secure communication features in compliance with government standards.
• Participate in software integration, testing, debugging, and deployment within mission-critical environments.
  
  

REQUIRED QUALIFICATIONS

• US Citizen with the ability to obtain a US Government Security clearance up to the Secret or TS level
• Proficiency in front-end technologies (e.g., React, Angular, HTML/CSS/JavaScript) and back-end languages (e.g., Python, Java, Node.js, C++).
• Experience working in Linux-based environments and with RESTful APIs, databases, and version control tools (e.g., Git). Familiarity with secure coding practices and the full software development lifecycle (SDLC).
• Strong analytical, communication, and collaboration skills.
• Experience supporting DoD software development efforts.
• Knowledge of DevSecOps, CI/CD pipelines, and containerization (e.g., Docker, Kubernetes).
• Familiarity with Agile/Scrum methodologies and tools like Jira, Confluence, and GitLab CI.
  
  

US Salary Range

$90,000 - $185,000 USD

The salary range for this role is an estimate based on a wide range of compensation factors, inclusive of base salary only. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. The final salary offer will be determined after a thorough review of the candidate's background and alignment with the role. Additionally, SIXGEN offers top-tier benefits for full-time employees, including:

• Employer-paid health insurance premiums (medical, dental, vision) for you and your family
• Employer-paid short/long term disability insurance and basic life/AD&D insurance
• 401K with a 4% employer contribution
• Professional development reimbursement options available (training, certification, education, etc)
• Flexible and remote work policies for most positions
• Flexible PTO and holiday schedule
  
  

SIXGEN is an Equal Opportunity Employer. We ensure that all applicants are considered for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, disability, age, marital status, ancestry, projected veteran status, or any other protected group or class.

We are committed to fostering an inclusive culture that values diversity in our people, reflecting the communities we serve and our customer base. We strive to attract and retain a diverse talent pool and create an environment where everyone is empowered to be their authentic selves at work.