Senior Software Engineer (TS/SCI w/poly)

SIXGEN; Fort Meade (MD); On-site; USD 100,000 - 130,000; Full time

Benefits offered by this job

Employer-paid health insurance

401K with 4% employer contribution

Flexible PTO and holiday schedule

Job summary

SIXGEN is seeking a Software Engineer in Ft. Meade, MD to support agile software development focused on modernizing systems. Ideal candidates will have 14+ years of experience in software engineering and a strong background in Java and JavaScript.

The position requires active TS/SCI clearance and offers competitive compensation and top-tier benefits, including health insurance, 401K contributions, and flexible work policies.

Qualifications

• 14+ years of software engineering experience or 18+ years in lieu of a degree.
• Experience writing source code for new applications and enhancing existing applications.
• Active TS/SCI clearance with Polygraph.

Responsibilities

• Support implementation, troubleshooting, maintenance, and ongoing support of software.
• Design, develop, modify, and implement software applications using agile methods.
• Collaborate with technical teams in a development environment.

Skills

Java

JavaScript

Agile methodologies

Linux environment

Cross-functional collaboration

Education

Bachelor's degree in Computer Science

Tools

MongoDB

Spring

Perl

Python

Git

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 Overview

Position: Software Engineer

Job Type: Full‑time

Location: Ft. Meade, MD

Clearance Requirements: Active TS/SCI with Polygraph required

Work Schedule: 5 days per week onsite

Travel Requirements: None

Experience: 14+ years

What You'll Do

We are seeking a Software Engineer to support the implementation, troubleshooting, maintenance, and ongoing support of agile software development efforts focused on modernizing systems. This role requires applying advanced software engineering principles, theories, and concepts while contributing to the development of new approaches and solutions. The ideal candidate will tackle highly complex technical challenges, operate with significant autonomy, and provide technical leadership and mentorship to team members when needed.

Key Responsibilities

Software Development

• Design, develop, modify, and implement software applications using agile development methodologies.
• Write source code for new applications and enhance existing software solutions.
• Utilize both front‑end and back‑end technologies to develop complete software solutions.
• Support the modernization, maintenance, and enhancement of existing systems.

Engineering & Technical Problem Solving

• Apply advanced software engineering principles to solve complex technical challenges.
• Develop innovative approaches and solutions to meet mission requirements.
• Contribute to software architecture, integration efforts, and application development activities.
• Collaborate across cross‑functional teams to deliver effective solutions.

Team Collaboration & Leadership

• Work closely with technical teams in a collaborative development environment.
• Provide guidance and mentorship to team members as needed.
• Exercise sound judgment in technical decision‑making and problem resolution.
• Support both short‑term and long‑term development priorities.

Qualifications

• Bachelor's degree in Computer Science and 14+ years of software engineering experience; OR
• 18+ years of software engineering experience in lieu of a degree.
• Experience with Java and JavaScript in a Linux environment.
• Experience writing source code for new applications and enhancing existing applications.
• Experience using front‑end and back‑end technologies to develop complete software solutions.
• Experience designing, modifying, developing, and implementing software applications using agile methodologies.
• Experience solving complex technical problems within collaborative, cross‑functional teams.
• Active TS/SCI clearance with Polygraph.

Preferred Qualifications

• Experience with Java libraries including MongoDB, Spring, and OSGi.
• Experience with Perl, Python, Lua, and NGINX.
• Experience with Git, SQL, and Software Development Lifecycle (SDLC) processes.
• Experience with web application development technologies such as AngularJS, Angular, React, Vue.js, Microsoft C#, or related technologies.
• Experience with API development, integration, client‑side development, and server‑side development.
• Familiarity with AWS tools and cloud‑based development environments.
• Ability to work in a fast‑paced, highly collaborative, and team‑oriented environment while balancing competing priorities.

COMPENSATION & BENEFITS

At SIXGEN, we are committed to fair and equitable compensation practices. Compensation for this role will be based on experience, qualifications, technical expertise, and overall alignment with the position.

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

OUR COMMITMENT

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.