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

Software Engineer - TS/SCI Required - R135

Expedition Technology

Software Engineer - TS/SCI Required
Are you a software engineer who thrives on building robust, scalable systems? Do you enjoy crafting clean, maintainable code that powers mission-critical environments? At Expedition Technology (EXP), we're looking for a Software Engineer with a DevOps mindset to help us design and implement services that support verification, validation, testing, and evaluation workflows for the DoD and Intel communities. This role is ideal for someone who is a software engineer first-someone who writes production-grade Python, understands modern software architecture, and can contribute across the stack. DevOps experience is a bonus, especially if you've worked with containerized deployments and CI/CD pipelines, but your primary focus will be building the services that run in our mission environments.
What You'll Do:
  • Design and implement Python-based services and internal tools to support mission workflows
  • Build scalable, maintainable, and testable software systems for verification and validation environments
  • Collaborate across teams to establish best practices in software engineering, testing, and observability
  • Contribute to the design and evolution of mission-critical environments
  • Support deployment and automation efforts using containerization and CI/CD tools (bonus)
  • Mentor teammates and help grow engineering capabilities across the team

What You Bring:
  • U.S. Citizenship
  • An active TS/SCI security clearance
  • Bachelor's degree in Computer Science, Electrical Engineering, or a related field
  • 5+ years of experience in software engineering with a strong foundation in Python
  • Ability to write clean, modular, and well-tested code using modern software engineering practices
  • Solid understanding of software architecture, design patterns, and system integration
  • Familiarity with containerization (e.g., Docker) and CI/CD tools (e.g., GitLab) is a plus
  • Experience with Kubernetes is a bonus, but not required
  • Familiarity with cloud platforms (e.g., AWS) is helpful, but not the primary focus
  • A collaborative mindset and a passion for engineering excellence

Why EXP? We're solving some of the nation's hardest problems with cutting-edge technology and a culture of innovation, collaboration, and autonomy. If you're ready to build systems that matter-and do it with a team that values engineering excellence-let's talk.
Why Join Us? At Expedition Technology, you'll work on impactful projects that push the boundaries of what's possible with machine learning. You'll be part of a collaborative team that values innovation, technical excellence, and mission success.

Join our expedition and help shape the future of intelligent systems.
Clearance Required: TS/SCI
Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Software Engineer - TS/SCI Required - R135 in Herndon, VA vacancy
  •  ...providing Information Technology, Engineering Services, Program Management...  .... Solerity is seeking a Software Engineer to support a...  ...actively training personnel. Requirements REQUIREMENTS YOU...  ...technical field. Active TS/SCI clearance with Polygraph required... 
    Suggested
    Full time
    For contractors
    Remote work
    Flexible hours

    Solerity, Inc.

    Herndon, VA
    2 days ago
  •  ...ON SITE - Full Stack JavaScript/React Software Engineer – Active TS/SCI SDI is a growing small business located in Alexandria, Virginia providing...  ...departments. SDI's focus is always on meeting Customer requirements to ensure that their goals, deliverables, and deadlines... 
    Suggested
    For contractors
    Casual work
    Flexible hours

    Systems Definition

    Reston, VA
    7 days ago
  • $200k

     ...Join Our Team as a Software Engineer at Zachary Piper Solutions! Are you a skilled Software Engineer seeking an opportunity...  ...of cloud platforms (e.g., AWS, Azure, GCP) Active TS/SCI Security Clearance is required to start with the ability to obtain and maintain a TS... 
    Suggested
    Work at office

    Piper Companies

    Herndon, VA
    9 hours ago
  •  ...Software Engineer Marathon TS, Inc. has multiple prime contracts and sub contracts supporting DHS, DoD...  ...User Training Plans, Release Plans, Requirements Traceability Matrices, and Sprint Summary...  ...Requirements: Active TS/SCI clearance with the ability to obtain... 
    Suggested
    Immediate start
    Remote work

    Marathon TS

    Herndon, VA
    3 days ago
  •  ...performance and effectiveness. We are seeking a software developer to improve existing features and...  ...) tools like Docker, Podman, and Jenkins. Required technical and professional expertise ~ US Citizen with active TS/SCI clearance or show immediate eligibility according... 
    Suggested
    Immediate start

    IBM

    Herndon, VA
    4 days ago
  •  ...Senior Software Engineer TS/SCI FSP Department: Government Customer- Herndon Location: Herndon, VA ACTIVE TS/SCI CLEARANCE with FS poly REQUIRED TO BE CONSIDERED FOR THIS POSITION Senior Software Engineer: Analyzes user interfaces, maintain hardware... 

    TENICA Global Solutions

    Herndon, VA
    4 days ago
  •  ...teams to onboard and troubleshoot, harden the software supply chain and artifact flow, and document platform...  ...patterns and templates to scale adoption. Required Qualifications: ~ TS/SCI Clearance ~ BS in Software Engineering or related field ~2-10 years of experience... 
    Flexible hours

    North Point Technology

    Herndon, VA
    1 day ago
  •  ...Full Stack Software Engineer-TS/SCI with polygraph required Job Locations US-VA-McLean Job ID 2025-12550 # of Openings 1 Category Intelligence Benefit Type Salaried High Fringe/Full-Time Overview LMI is... 
    Full time
    Local area

    LMI Consulting, LLC

    McLean, VA
    4 days ago
  •  ...Senior Telecom Software Engineer TS/SCI clearance Herndon, VA Responsibilities: • Conduct telecommunications network analysis...  ...Linux firewall and VPN configurations. Requirements: • BA, BS degree or equivalent experience in Computer... 
    Local area

    System One Holdings, LLC

    Herndon, VA
    4 days ago
  •  ...learned to ensure records management processes and requirements are included in the early design stages of IT solutions.TS/SCI with Polygraph required Day 1Additionally,...  ...position requires the candidate to: Develop software applications as web services that are written... 
    Full time

    Arcadia Strategy Group LLC

    Chantilly, Loudoun County, VA
    2 days ago
  • $67.5 - $97.5 per hour

     ...TS SCI W/ CI Poly Cleared Software/DevOps Engineer Our client, a leader in the HCM space is in need of a Senior Software Engineer for a 1-2 year contract...  ...Terraform and Argo CD to deploy applications. Required Skills: ~5+ years of hands on experience working... 
    Hourly pay
    Contract work
    Work at office

    ClearBridge Technology Group

    Reston, VA
    4 days ago
  • $145k - $215k

     ...you must be a U.S. Citizen. This position requires an active U.S. Government security...  .... Government Security Clearance at the TS/SCI with CI poly level. Unlock the future...  ...with Vantor! We are seeking a Platform Engineer with strong experience in Kubernetes and... 

    Vantor

    Herndon, VA
    9 hours ago
  • $120k - $235k

     ...Job Title: TS/SCI Cleared Java Developer Position Overview: We are seeking a...  ...analysis and operational decision-making. Required Qualifications: Active TS/SCI...  ...Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience... 

    latitude

    Reston, VA
    1 day ago
  • ***This job requires active  TS/SCI clearance. Please apply only if you have an active  TS/SCI clearance. *** North Point Technology is looking for a TS/SCI Cleared Software Engineers to support a critical mission. The GEOINT Collection neXt (GCX) Program, awarded May... 
    Contract work
    Flexible hours

    North Point Technology

    Herndon, VA
    9 hours ago
  •  ...Security, OUSW(I&S). We are seeking a TS//SCI cleared Full Stack Data Engineer with a variety of technical skills,...  ...for business improvement. Required technical and professional expertise...  ...experience applying data engineer or software development skills to develop analytic... 
    Full time
    Work at office
    Immediate start

    IBM

    Reston, VA
    4 days ago
  • *****MUST HAVE AN ACTIVE TS/SCI WITH ABILITY TO OBTAIN TO PASS A POLY CLEARANCE****** Software Engineer IV Our client's Space & Intelligence Sector is looking for...  ...experience may be considered in lieu of a degree requirement For Staff level: A Bachelor's degree... 
    Work at office

    SHLD, LLC

    Herndon, VA
    3 days ago
  •  ...Platform Engineer, Kubernetes (TS/SCI) Reston, VA, USA Full-time Clearance: Top Secret/SCI Job Description We are seeking a Platform...  ...automated server or network configurations, large-scale software deployments, or monitoring and testing, such as continuous... 
    Full time

    Beyond SOF

    Reston, VA
    4 days ago
  •  ...Software Engineer - Java (TS/SCI Clearance Required) Herndon, Virginia, United States This job requires active TS/SCI clearance. Please apply only if you have an active TS/SCI clearance. North Point Technology is looking for a TS/SCI Cleared Software Engineer... 
    Contract work
    Flexible hours

    North Point Technology

    Herndon, VA
    10 days ago
  •  ...We are looking for a Software Engineer to work on a long-term contract supporting the intelligence...  ..., processing speed, and input/output requirements and works with them to resolve...  ...Required Qualifications: Clearance: TS/SCI w FS Poly Demonstrated hands-on experience... 
    Long term contract

    André Global, Inc.

    Chantilly, Loudoun County, VA
    1 day ago
  •  ...VECTOR JOB OPENING Job ID: 627 Job Title: Software Engineer Clearance Required: Must have an active TS/SCI with CI Poly for this job. Department: Software Engineering Location: Reston, VA 100% onsite- schedule can be 40 hours a week - we can do compressed... 
    Permanent employment

    Vector Talent Resources

    McLean, VA
    1 day ago
  •  ...Software Engineer/Developer TS/SCI FSP Department: Government Customer- Chantilly Location: Chantilly, VA ACTIVE TS/SCI CLEARANCE with FS poly REQUIRED Software Engineer/Developer (Any Level) Responsibilities: Significant proficiency in an object... 
    Full time

    TENICA Global Solutions

    Chantilly, Loudoun County, VA
    9 hours ago
  •  ...Software Engineer (TS/SCI Clearance Required) North Point Technology is looking to hire a Software Developer to support NGA's Geospatial Intelligence (GEOINT) mission. The qualified candidate must have an active TS/SCI security clearance, and will help collect the... 
    Flexible hours

    North Point Technology

    Chantilly, Loudoun County, VA
    6 days ago
  •  ...our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training...  ...a US Citizen and requires an active/current TS/SCI with Polygraph clearance. Equal Opportunity... 
    Remote work

    GCI

    Sterling, VA
    4 days ago
  •  ...providing Information Technology, Engineering Services, Program Management...  .... Solerity is seeking a Software Engineer to support a...  ...development lifecycle, including requirements gathering, design,...  ...technical field. Active TS/SCI clearance with Polygraph required... 
    Full time
    Temporary work
    For contractors
    Local area
    Remote work
    Flexible hours

    Solerity, Inc.

    McLean, VA
    2 days ago
  •  ...today. We are seeking aspiring engineers, signals processors, and physicists...  ...of signal and image processing software, building on our 80-year history on...  ...patented these capabilities. This work requires candidates to have an active TS/SCI U.S. Government Security Clearance... 
    Temporary work
    Work at office
    Remote work
    Visa sponsorship
    Flexible hours

    ARKA Group

    Chantilly, Loudoun County, VA
    9 hours ago
  • ***This job requires active TS/SCI clearance with a CI Polygraph. Please apply only if you have an...  ...North Point Technology is hiring a DevOps Engineer to support our Data Centric-Multi-...  ...combined experience in Linux, scripting or software development, and configuration... 
    Contract work
    Flexible hours

    North Point Technology

    Herndon, VA
    9 hours ago
  •  ...______________ We are seeking a Cloud Engineer to join our dynamic team. In this role,...  ...environments such as AWS and Azure, is required. This hands-on role is ideal for an engineer...  ...environment Must possess a TS/SCI federal security clearance. US citizenship... 
    Temporary work
    Local area
    Immediate start

    Vibrint

    Reston, VA
    2 days ago
  •  ...Cloud Engineer Xcelerate Solution is seeking a Cloud Engineer,...  ...development, deployment, and use of software for the DOMEX Technology...  ...Bethesda, MD (Hybrid) Clearance: TS/SCI Responsibilities...  ...dependencies where needed Minimum Requirements Bachelor's Degree in... 
    Remote work

    Xcelerate Solutions

    Reston, VA
    22 days ago
  •  ...Senior Software Developer, TS/SCI with Full Scope Polygraph Required, Herndon, VA The Senior Software Developer must have an active TS/SCI with Full Scope...  ...experienced in Software Automation development and engineering, programming, and automation solutions in complex... 

    Next Step Systems LTD

    Herndon, VA
    2 days ago
  •  ...Cloud Engineer (TS/SCI) Reston, VA, USA Full-time Clearance: Top Secret/SCI Job Description Everyone is trying to "harness...  ...Agile methodologies Experience working with and influencing software development teams Knowledge of Linux, including Ubuntu, RHEL... 
    Full time

    Beyond SOF

    Reston, VA
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Software Engineer - TS/SCI Required - R135. Be the first to apply!