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

Mid/Senior Software Engineer (TS/SCI)/(Remote)

Full-time

AstroNetix

Remote
  • Remote job

Company Description

AstroNetix is a veteran-owned company delivering mission-focused solutions across national security, defense, and space domains. Our team brings deep operational and technical experience supporting software-intensive mission systems where reliability, correctness, and security are critical. We partner with U.S. government and defense organizations to design, integrate, and operate command and control systems that perform under real-world mission conditions.

Role Description

AstroNetix is seeking an experienced Senior Backend Software Engineer with mandatory OpenC3 COSMOS expertise to support space and mission command and control systems .

This role focuses on backend development, integration, and operational hardening of COSMOS-based command and telemetry systems used in national security environments. The successful candidate will work closely with systems engineers, operators, and security teams to ensure reliable, secure command execution and telemetry flow across distributed mission systems.

Responsibilities include configuring and extending OpenC3 COSMOS, developing and integrating backend services (primarily Java Spring Boot ), defining and maintaining command and telemetry schemas, and implementing DevSecOps practices to support secure, resilient operations. The role also involves integrating COSMOS with mission analysis tools, orchestration frameworks, and AI-enabled backend services.

Qualifications

  • Hands-on, production experience with OpenC3 COSMOS (required)
  • Backend software engineering experience building Java Spring Boot services
  • Strong experience with DevSecOps practices , including CI/CD pipelines, containerization, and secure deployments
  • Experience with command and telemetry systems or mission control software
  • Familiarity with message-driven or distributed system architectures
  • Experience integrating backend systems with mission tools or frameworks
  • (e.g., FreeFlyer, Meridian, or similar systems)
  • Experience supporting or integrating AI-enabled backend services or analytics pipelines
  • Ability to support mission-critical systems with a focus on correctness, reliability, and security
  • U.S. citizenship required
  • Active TS/SCI required
Vacancy posted 18 hours ago
Similar jobs that could be interesting for youBased on the Mid/Senior Software Engineer (TS/SCI)/(Remote) in Remote vacancy
  • Staffed4U is looking for a Mid-to-Senior Level Software Engineer in Jessup, Maryland. The role requires at least 6 years of software development experience...  ...bachelor’s degree. Candidates must have an active TS/SCI clearance with Full-Scope Polygraph. You will develop software... 
    Senior

    Staffed4U

    Jessup, MD
    2 days ago
  •  ...A Veteran-Owned technology firm is seeking a Senior Software Developer to support mission-critical projects, requiring strong skills in JavaScript, HTML5, and CSS3. The position mandates an active TS/SCI Security Clearance and offers a collaborative environment focusing... 
    Remote work
    Senior

    Kinsley Power Systems

    Florida, NY
    3 days ago
  • $170k - $260k

    GliaCell Technologies is seeking a Senior Software Engineer for a full-time position to support a U.S. Government customer in Columbia, MD. The...  ...complex software systems for critical missions, requiring a TS/SCI with Polygraph security clearance and over 14 years of... 
    Remote job
    Senior
    Full time
    Work from home

    GliaCell Technologies LLC

    Columbia, MD
    3 days ago
  • $170k - $260k

    GliaCell Technologies is seeking a Senior Software Engineer for a full-time position in Annapolis Junction, Maryland. This role requires an active TS/SCI clearance and involves providing technical support for critical government software systems. The position features... 
    Remote job
    Senior
    Full time
    Relocation package

    GliaCell Technologies

    Annapolis, MD
    2 days ago
  • $170k - $230k

    GliaCell Technologies is seeking a Senior Software Engineer in Annapolis Junction, MD. This full-time role involves modernizing legacy systems with microservices and requires an active TS/SCI with Polygraph clearance. The ideal candidate will have strong expertise in Java... 
    Remote job
    Senior
    Full time
    Work from home

    GliaCell Technologies

    Annapolis, MD
    2 days ago
  • $180k - $260k

    GliaCell Technologies is looking for an experienced Senior Software Engineer in Annapolis Junction, Maryland to support critical mission-related...  .... The role requires 14+ years of experience, an active TS/SCI clearance, and a Bachelor's degree in Computer Science or a... 
    Remote job
    Senior
    Full time
    Work from home

    GliaCell Technologies

    Annapolis, MD
    3 days ago
  • $155k - $185k

    Geon Technologies is seeking a Software Engineer in Columbia, Maryland, with 7+ years of experience to develop open-sensor frameworks for defense...  ...have a Bachelor’s degree in a related field and an active TS/SCI with poly Security Clearance. The position offers an... 
    Remote job
    Senior

    Power3 Solutions

    Columbia, MD
    2 days ago
  • $200k - $280k

    A leading engineering firm is seeking a Senior Cloud Software Engineer to provide technical support for a U.S. Government customer. The role demands a TS/SCI clearance and offers responsibilities in developing data strategies, collaborating on mission needs, and utilizing... 
    Remote job
    Senior
    Full time

    GliaCell Technologies

    Annapolis, MD
    4 days ago
  •  ...Maryland, is seeking an experienced AI Software Engineer to design and implement solutions that...  ...Java and familiarity with RESTful APIs. TS/SCI clearance and a Bachelor's degree in Computer...  ...are required. The position offers both remote and hybrid work options, along with... 
    Remote job
    Senior

    Booz Allen Hamilton

    Annapolis, MD
    2 days ago
  • $200k - $280k

    A technology firm in Annapolis is seeking a Senior Cloud Software Engineer for a full-time role supporting government contracts. The ideal candidate must possess an active TS/SCI with Polygraph clearance and have at least eight years of software development experience.... 
    Remote job
    Senior
    Full time

    GliaCell Technologies

    Annapolis, MD
    4 days ago
  • A security-focused technology company is seeking a mid-level Software Engineer in Maryland to support agile development initiatives. The role focuses...  ...-scale compute clusters. Candidates must have an active TS/SCI security clearance and a Bachelor's degree in Computer... 
    Remote work
    Senior

    Peraton

    Annapolis, MD
    1 day ago
  • Staffed4U is looking for a mid-senior level Software Engineer to join our team in Annapolis Junction, MD. Candidates must have a minimum of 6+ years...  ...Java, Python, CSS, JavaScript, and SQL, alongside active TS/SCI with Full Scope Polygraph clearance. Join a mission-centric... 
    Senior

    Staffed4U

    Annapolis, MD
    2 days ago
  •  ...Front End Developer – Mid-level Date...  ..., 2026 City Remote Country United...  ...required. Active TS/SCI highly preferred....  ...Shall perform engineering tasks for front-end...  ...area. ~7 years of software development experience...  ...including seniority and merit systems,... 
    Remote work
    Minimum wage
    Full time
    Contract work
    Temporary work
    Work experience placement

    Maximus

    Oregon State
    18 hours ago
  • $69.4k - $158k

     ...Embedded Developer to create and maintain software for critical systems. You will develop solutions using C and Linux, and need a TS/SCI clearance. This role offers a dynamic work...  ...environment and supports both in-person and remote collaboration. Compensation ranges from $6... 
    Remote work
    Senior

    Booz Allen Hamilton

    Annapolis, MD
    2 days ago
  • $200k - $210k

    Shield Consulting Solutions is seeking a highly experienced Sr. Software Engineer based in Annapolis Junction, MD, with expertise in software...  ...on project needs. Candidates must possess an active TS/SCI w/Polygraph clearance and have a minimum of 14 years of experience... 
    Remote work
    Senior
    16 hours

    Shield Consulting Solutions

    Annapolis, MD
    1 day ago
  • $200k - $210k

    Shield Consulting Solutions is looking for a Sr. Software Engineer to join their team in Annapolis Junction, MD. This role requires an Active TS/SCI w/Polygraph clearance and offers up to 16 hours of telework per week depending on tasking. Ideal candidates will have 14... 
    Remote work
    Senior
    16 hours

    Shield Consulting Solutions

    Annapolis, MD
    4 days ago
  • Shield Consulting Solutions is seeking a dedicated DevOps Engineer with active TS/SCI clearance. The role involves deploying and managing complex software, working on an important modernization effort for NSA’s tools. Experience with Linux, AWS, Docker, and CI/CD practices... 
    Remote job
    Senior
    Full time

    Shield Consulting Solutions

    Annapolis, MD
    1 day ago
  • Leidos is seeking a TS/SCI cleared Senior DevOps Software Engineer to join our team in Bethesda, MD. In this role, you will lead a DevOps team responsible...  ...offers a flexible schedule with a blend of on-site and remote tasks. The role requires strong technical skills, particularly... 
    Remote work
    Senior
    Flexible hours

    Leidos

    Bethesda, MD
    18 hours ago
  • $78k - $275k

    Onyx Point, Inc. is looking for a Senior DevOps Engineer with an active TS/SCI with Polygraph security clearance. The role involves optimizing and automating processes across various platforms, utilizing tools like Kubernetes, Terraform, and AWS. The salary ranges from... 
    Remote job
    Senior

    Onyx Point, Inc.

    Annapolis, MD
    2 days ago
  •  ...experience. The role involves developing software solutions for clients, ensuring they meet...  ...programming, along with a Bachelor's degree and TS/SCI clearance. This position provides a dynamic work environment, with options for remote and hybrid work models. #J-18808-Ljbffr... 
    Remote job
    Senior

    Booz Allen Hamilton

    Annapolis, MD
    18 hours ago
  • GliaCell Technologies is looking for a Principal Python Software Engineer in Annapolis Junction, Maryland. This full-time role involves supporting...  ...systems. The ideal candidate should possess an active TS/SCI with Polygraph clearance and have over 20 years of software engineering... 
    Remote job
    Senior
    Full time
    Contract work
    Relocation package

    GliaCell Technologies

    Annapolis, MD
    4 days ago
  •  ...Kentro is looking for a mid-level Software Engineer to join their team in St. Louis, MO. This role requires a TS/SCI clearance and offers a competitive benefits package. Responsibilities include software development, analyzing user needs, and updating software capabilities... 
    Flexible hours

    Kentro

    Saint Louis, MO
    3 days ago
  • $170k

    Vega in St. Louis is looking for Senior Software Engineers to develop mission-critical geospatial intelligence...  ...and React. The role requires an active TS/SCI clearance and is primarily on-site in a classified environment with no remote options. The position offers a salary... 
    Remote work
    Senior

    Vega

    Saint Louis, MO
    18 hours ago
  • Nalley Consulting is seeking an Application Developer in Washington, D.C., for a hybrid role requiring TS/SCI clearance. The position demands experience with applications development, Oracle SQL, Node.js, and other technologies. Candidates should have a Bachelor's degree... 
    Senior

    NALLEY CONSULTING, LLC

    Washington DC
    18 hours ago
  •  ...Job Description Job Description SOFTWARE REVERSE ENGINEER Vexterra Group is searching for a  Senior Software Reverse Engineer support a Government Customer in...  ...years experience. SECURITY CLEARANCE ~ Active TS SCI + CI Polygraph QUALIFICATIONS Two (2)... 
    Senior
    For contractors

    Vexterra Group

    Bethesda, MD
    8 days ago
  • $95k - $230k

     ...Annapolis Junction, Maryland Category: Network Engineer Level - Mid-Senior Travel Required:No Remote Type: No Clearance: TS/SCI w/ Polygraph **Position is contingent...  ...and control. Integrate hardware and software to satisfy ISO 9000 requirements and other... 
    Remote work
    Senior
    Contract work
    Temporary work
    Work experience placement
    Immediate start

    Sunayu

    Gambrills, MD
    22 days ago
  • $150k

    Senior AWS Cloud Engineer Location: Tampa, FL / DC area / Hybrid Remote Position Type: Full‑Time Salary Range: $150k Security Clearance Required: TS/ SCI We are seeking a highly skilled and experienced Senior...  ...DevOps practices into the software development lifecycle,... 
    Remote work
    Senior
    Hourly pay
    Full time
    Temporary work
    Local area

    Power3 Solutions and Partnering Companies

    Tampa, FL
    1 day ago
  • Senior Infrastructure/DevSecOps Engineer (TS/SCI with Full Scope Poly) {S} Job Category: ENG Requisition Number: SENIO...  ...team to deliver a complex software application into operations. In addition...  ...skills and engage with virtual or remote teams Strong troubleshooting and... 
    Remote work
    Senior
    Full time
    Temporary work
    Work at office
    Visa sponsorship
    Relocation package
    Flexible hours

    ARKA

    King of Prussia, PA
    2 days ago
  •  ...J&T Business Consulting is looking for an experienced Software Engineer to work on mission-critical systems. The role involves design, development...  ...will have a minimum of 10 years of experience and an active TS/SCI security clearance. The position offers a comprehensive... 
    Senior

    J&T Business Consulting

    Annapolis, MD
    2 days ago
  • Basic Qualifications: Active TS/SCI security clearance with a...  ...Demonstrated experience in software development/engineering, including requirements...  ...development The team is seeking a senior Cloud Software Engineer on...  ...to more junior and mid-level programmer/analysts,... 
    Senior

    Peraton

    Annapolis, MD
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Mid/Senior Software Engineer (TS/SCI)/(Remote). Be the first to apply!