Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Full Stack Software Engineer (TS/SCI w/ Poly)

$90k - $185k
Full-time

Sixgen

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: Software Engineer

  • Job Type: Full Time

  • Location:  Onsite, Ft-Meade, MD

  • Clearance Requirements:  TS/SCI w/ Poly

  • Travel: None

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, test, and deploy software applications and systems in support of government and customer missions.
    Collaborate with systems engineers, analysts, and end users to understand technical requirements and translate them into software solutions.

  • Write clean, efficient, and maintainable code using modern programming languages and development practices.

  • Support integration, debugging, and testing activities in both lab and operational environments.

  • Ensure software meets security, performance, and reliability standards, in compliance with government policies and frameworks.

REQUIRED QUALIFICATIONS


  • US Citizen with the ability to obtain a US Government Security clearance up to the Secret or TS level 

  • Proficiency in one or more programming languages such as Python, C++, Java, or C.

  • Experience developing software in Linux-based environments.
    Familiarity with secure coding practices and software lifecycle principles.

  • Strong problem-solving skills and the ability to work independently or as part of a collaborative team.

  • Experience supporting DoD, IC, or federal government software development projects.

  • Knowledge of DevSecOps, containerization, or distributed systems.
    Familiarity with Agile methodologies and tools like Git, Jira, and CI/CD pipelines.

COMPENSATION & BENEFITS


$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

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.

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Full Stack Software Engineer (TS/SCI w/ Poly) in Remote vacancy
  •  ...Description *Active TS/SCI w/ FS Poly required prior to application The Front-End (Angular) Software Engineer will design and develop complex new software products, or make significant enhancements to existing software. The ideal candidate is a hands-on developer... 
    Suggested
    Full time

    Leading Path Consulting

    Remote
    1 day ago
  •  ...Description *Active TS/SCI w/ Poly required prior to applying Description: Looking for a full stack developer supporting a backend development team focused on middleware and backend services. Requirements Mandatory Skills 1. Intermediate to Expert level... 
    Suggested
    Full time

    Leading Path Consulting

    Remote
    1 day ago
  • $25k

     ...Software Engineer - Spring Boot Framework - 12+ yrs of Experience - TS/SCI w/Poly Required Halogen Engineering Group is looking for a Software Engineer to join our team who has experience with Spring Boot framework development experience. Location: Annapolis... 
    Suggested
    Full time
    Contract work
    Temporary work
    Remote work
    Shift work

    Halogen Engineering Group, Inc

    United States
    1 day ago
  • $25k

     ...Software Engineer - DevOps - 20+ yrs of Experience - TS/SCI w/Poly Required Halogen Engineering Group is looking for a Software Engineer that develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm... 
    Suggested
    Full time
    Contract work
    Temporary work
    Remote work
    Shift work

    Halogen Engineering Group, Inc

    Remote
    1 day ago
  • $25k

     ...Software Engineer \- Offensive\/Defensive Cyber Operations \- 7+ yrs of Experience \- TS\/SCI w\/Poly Required \\\ \ \ Halogen Engineering...  ...customers directly performing full cycle system engineering,...  ...debugging, and protocol stacks \\\\\\\\ Experience... 
    Suggested
    Full time
    Contract work
    Temporary work
    Work experience placement
    Remote work
    Shift work

    Halogen Engineering Group

    Linthicum, MD
    1 day ago
  • $25k

     ...Software Engineer – Algorithm Development- 7+ yrs of Experience - TS/SCI w/Poly Required Halogen Engineering Group is looking for a Software Engineer who  develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics... 
    Full time
    Contract work
    Temporary work
    Remote work
    Shift work

    Halogen Engineering Group, Inc

    Remote
    1 day ago
  • $250k - $300k

     ...Job Type: Full-time Location: Annapolis Junction, MD. Clearance Requirements: TS/SCI w/ Poly Years of Experience: 7+ years Team Lead...  ...in our field. As a CNO Engineer, you’ll work in a unique position...  ...at the intersection of software development, binary and network... 
    Full time
    Immediate start
    Work from home
    Flexible hours

    Sixgen

    Remote
    1 day ago
  • $112k - $179k

    ResponsibilitiesCloud Software Engineer 2 - Cyber Mission (Annapolis Junction...  ..., test, and maintain full-stack cloud-based applications Support...  ...#PeratonRoyalMove#MDFSPQualificationsActive TS/SCI clearance with current...  ...: Information TechnologyClearance: Top Secret/SCI w/Poly
    Contract work
    For contractors
    Remote work
    Shift work

    Peraton Corporation

    Annapolis Junction, MD
    4 days ago
  • $212.5k - $287.5k

     ...Currently Possess: Top Secret SCI + Polygraph Clearance Level...  ...: None Job Family: Software Engineering Job Qualifications:...  ...● Security clearance level: TS/SCI w/Poly required ● US citizenship...  ...balance, GDIT offers employees full flex work weeks where possible... 
    Full time
    Contract work
    Temporary work
    Immediate start
    Remote work
    Worldwide
    Flexible hours

    General Dynamics Information Technology

    Annapolis Junction, MD
    2 days ago
  •  ...Full Stack Software Developer / SME Falls Technology LLC Location: Chantilly, VA Clearance: Active TS/SCI with Polygraph required Falls Technology is looking for an experienced Full Stack Software Developer / SME to join our team supporting a mission-focused... 
    Full time

    Falls Technology Llc

    Remote
    1 day ago
  •  ...Description We are seeking  one (1) Software Engineer to provide  software development support for  MOON 1998 .  This position is...  ...AWS Cloud Development Kits (CDK) Requirements Active TS/SCI w/ FS Poly Demonstrated experience with  Systems Administration... 
    Full time

    Leading Path Consulting

    Remote
    1 day ago
  • $157.25k - $212.75k

     ...Currently Possess: Top Secret SCI + Polygraph Clearance Level...  ...: None Job Family: Software Engineering Job Qualifications:...  ...● Security Clearance Level: TS/SCI w/Poly ● Required Skills and Abilities...  ...balance, GDIT offers employees full flex work weeks where... 
    Full time
    Temporary work
    Immediate start
    Remote work
    Worldwide
    Flexible hours

    General Dynamics Information Technology

    Maryland
    2 days ago
  •  ...Description Data Engineer Chantilly, Va *Active TS/SCI w/ FSP required prior to application The Software Engineer will design and develop complex new software products, or make significant enhancements to existing software. The candidate must have strong,... 
    Full time
    Work at office

    Leading Path Consulting

    Remote
    1 day ago
  • $110.5k - $149.5k

     ...Possess: Top Secret SCI + Polygraph Clearance...  ...: Azure Cloud VDI Engineer ** This position is...  ...Security clearance level: TS/SCI w/Poly ● US citizenship...  ...GDIT offers employees full flex work weeks where...  ...AI, cloud, cyber and software development.Join our Talent... 
    Full time
    Temporary work
    Immediate start
    Remote work
    Worldwide
    Relocation package
    Flexible hours

    General Dynamics Information Technology

    Maryland
    2 days ago
  • $203k - $243k

     ...Job Type: Software Engineer Level 3 (US CITIZEN ONLY) Location: Ft Meade, MD Clearance Requirements : TS/SCI & Poly Years of Experience: 20 Work site requirement: 5 days a week in office Travel: None   Working with SIXGEN SIXGEN is committed to... 
    Full time
    Work at office
    Immediate start
    Work from home
    Flexible hours

    Sixgen, Inc.

    Meade County, KY
    1 day ago
  • $125k - $215k

     ...Description A day in the life: As a Full-Stack Software Engineer, you'll support a large mission focused team of software, systems and...  ...developing 508 compliant applications ~ An active US Government TS/SCI security clearance with polygraph The total package:... 
    Full time
    Summer holiday
    Immediate start

    Red Alpha

    Remote
    1 day ago
  • $140.25k - $189.75k

     ...Currently Possess: Top Secret SCI + Polygraph Clearance Level...  ...: None Job Family: Software Engineering Job Qualifications:...  ...Security Clearance Level : TS/SCI w/ Polygraph Location: Customer...  ...balance, GDIT offers employees full flex work weeks where... 
    Full time
    Temporary work
    Immediate start
    Remote work
    Worldwide
    Flexible hours

    General Dynamics Information Technology

    Herndon, VA
    3 days ago
  • $25k

     ...Job Description Job Description Software Engineer - GHOSTGEM - 5+ yrs of Experience - TS/SCI w/Poly clearance is required Halogen Engineering Group is looking for a Software Engineer who will be responsible for developing, sustaining, and troubleshooting GHOSTGEM... 
    Contract work
    Temporary work
    Remote work
    Shift work

    Halogen Engineering Group, Inc

    Maryland
    27 days ago
  • $25k

     ...APIs - 8+ yrs of Experience (PARTIAL TELEWORK) - TS/SCI w/Poly clearance is required - BT Halogen Engineering Group is looking for a Web Developer to join our...  ...requirements. Requirements Software Integration (new and existing systems) Troubleshooting... 
    16 hours
    Contract work
    Temporary work
    Remote work
    Shift work

    Halogen Engineering Group, Inc

    Annapolis Junction, MD
    8 days ago
  • $25k

     ...Description Job Description DevOps Engineer - GIT/Linux - 10+ yrs of Experience - TS/SCI w/Poly Required Halogen...  ...safe delivery of critical business software to Production • Develop & Maintain...  ...Assurance and production stacks using a combination of scripting... 
    Contract work
    Temporary work
    Remote work
    Shift work

    Halogen Engineering Group, Inc

    Maryland
    15 days ago
  •  ...Technical Training, Certification(s) or Degree ● Required Experience: 5+ years of related experience ● Security Clearance Level: TS/SCI w/Poly ● Required Skills and Abilities: Proven experience with Azure cloud services and migration projects. Strong proficiency... 

    General Dynamics Information Technology

    Annapolis Junction, MD
    more than 2 months ago
  •  ...our country from threats. Job Description AZURE CLOUD ENGINEER Cloud Architect will  maintain an efficient and cost-...  ...to support an on-call rotation ● Security clearance level: TS/SCI w/Poly ● US citizenship required ● Certification Required: 8570... 

    General Dynamics Information Technology

    Annapolis Junction, MD
    more than 2 months ago
  •  ...Transform technology into opportunity as a Software Quality Assurance Specialist/...  ...related field Security Clearance Level: TS/SCI + Poly. Location: Herndon, VA US Citizenship...  ...Citizenship Required GDIT IS YOUR PLACE: ~ Full-flex work week to own your priorities at... 
    Flexible hours

    General Dynamics Information Technology

    Herndon, VA
    a month ago
  •  ...mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber...  ...candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance.   Equal Opportunity Employer... 
    Full time

    Gci Careers

    Remote
    1 day ago
  •  ...Software Engineer, Clearance Required – TS/SCI w/Polygraph (All Levels) Please note, this position requires all candidates to currently possess...  ...experience developing or enhancing user interfaces and full-stack applications using JavaScript and modern frontend technologies... 
    Bi-weekly pay
    Full time
    Work experience placement
    Remote work

    Ssati

    Remote
    1 day ago
  • Senior Software Engineer - Top Secret/SCI w/Poly Job Locations: US-MD-Laurel Requisition ID: 2026-165845 Responsibilities The Data Warehouse Platforms Engineering...  ...members. Qualifications Basic Qualifications Active TS/SCI security clearance with polygraph is required.... 
    Work at office
    Remote work

    Peraton

    Laurel, MD
    4 days ago
  •  ...Data Scientist / Software Engineer – Expert Falls Technology LLC Location: McLean, VA Clearance: Active TS/SCI with Polygraph required Falls Technology is looking for an experienced Data Scientist / Software Engineer to join our team supporting a mission... 
    Full time

    Falls Technology Llc

    Remote
    1 day ago
  • $110.5k - $149.5k

     ...Possess: Top Secret SCI + Polygraph Clearance Level...  ...problems as a Cloud Engineer at GDIT. Here, you’ll tailor...  ...in scripting using software languages such as Java and...  ...Security Clearance: TS/SCI with Polygraph US...  ..., GDIT offers employees full flex work weeks where possible... 
    Full time
    Contract work
    Temporary work
    Work experience placement
    Immediate start
    Remote work
    Worldwide
    Flexible hours

    General Dynamics Information Technology

    Herndon, VA
    2 days ago
  • $95k - $180k

     ...Full-time Description About Millennial Software: Millennial Software is revolutionizing...  ...Junior - Mid level Full Stack Software Developer to join...  ...knowledge of software engineering fundamentals: version control...  ...experience.  Active TS/SCI clearance. Ability... 
    Full time
    Local area

    Millennial Software Solutions

    Remote
    1 day ago
  • $153k - $207k

     ...USA VA McLean Full Part/Time: Full time...  ...Possess: Top Secret SCI + Polygraph...  ...nation as a Systems Engineer (DevOps) at GDIT....  ...comprehensive motion imagery software suite. The DevOps...  ...requires an active TS/SCI with Polygraph...  ...with Elastic stack Excellent organizational... 
    Full time
    Temporary work
    Part time
    Immediate start
    Remote work
    Worldwide
    Flexible hours

    GDIT

    McLean, VA
    7 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Full Stack Software Engineer (TS/SCI w/ Poly). Be the first to apply!