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

Full-time

AstroNetix

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

Apply

Vacancy posted 23 days ago

Similar jobs that could be interesting for youBased on the Mid/Senior Software Engineer (TS/SCI)/(Remote) in Remote vacancy

Entry-Senior Software Engineer- TS/SCI w/ Polygraph
...Location: Annapolis Junction, Maryland Category: Software Engineer Engineer Level - Entry - Senior Level Travel Required: No Remote Type: No Clearance: TS/SCI w/ Polygraph **Position is contingent upon contract award** Position Requirements...
Remote work
Senior
Full time
Contract work
Temporary work
Work experience placement
Immediate start
Sunayu
Annapolis Junction, MD
8 hours ago
Senior Python Engineer — TS/SCI Cleared (Hybrid/Remote) (Annapolis)
...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 work
Senior
Full time
Contract work
Relocation package
GliaCell Technologies
Annapolis, MD
2 hours ago
Full-Stack Developer - Mid-Senior, TS/SCI with CI Poly - $150K-$200K + 15% 401k
$150k - $200k
...Description About Millennial Software: Millennial Software is... ...Currently Possess: Top Secret SCI + CI Polygraph Millennial Software is seeking a Mid-Senior Full Stack Software Developer to... ...users and developers Active TS/SCI clearance Nice to have:...
Senior
Full time
Shift work
Millennial Software Solutions
Fairfax, VA
8 hours ago
Mid-Level Software Engineer (TS/SCI with Poly required)
$125k - $215k
...Description A day in the life: As a Mid-level Software Engineer, you will develop, maintain, and enhance complex and diverse software... ...accepted in lieu of a degree ~ An active US Government TS/SCI security clearance with Polygraph The total package:...
Suggested
Full time
Summer holiday
Immediate start
Red Alpha
Remote
8 hours ago
Software Engineer 4 (AdmitIT) (TS/SCI with Poly)
...Information Technology, Engineering Services, Program... ...RESPONSIBILITIES: The Senior Software Engineer will serve as... ...and mentor junior/mid-level peers.... ...REQUIREMENTS YOU BRING: · TS/SCI Clearance with polygraph... ...onsite, hybrid or remote, as dictated by position...
Remote work
Full time
For contractors
Flexible hours
Solerity
Remote
8 hours ago
Software Reverse Engineer (TS/SCI)- Senior & Mid
...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
1 day ago
Senior Computer Vision AI/ML Engineer (TS/SCI) {S}
...This position is for aâ¯ Senior Computer Vision AI/ML Engineer . As a CV AI/ML Engineer,... ...algorithms to problems in remote sensing, including Automatic... ...team of researchers and software developers and working with... ...AI/ML models ~ Active TS/SCI U.S. Government Security Clearance...
Remote work
Senior
Full time
Temporary work
Work at office
Visa sponsorship
Relocation package
Flexible hours
Arka Group, L.p.
Remote
8 hours ago
Junior-Mid Full Stack Developer, TS/SCI with CI Poly - $95K-$180K + 15% 401k
$95k - $180k
...Description About Millennial Software: Millennial Software is... ...Software is seeking a Junior - Mid level Full Stack Software... ...Working knowledge of software engineering fundamentals: version control... ...practical experience. Active TS/SCI clearance. Ability to work...
Full time
Local area
Millennial Software Solutions
Remote
8 hours ago
Senior Software Engineer - TS/SCI FSP
...Description 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...
Senior
Full time
Tenica
Remote
8 hours ago
Senior Software Engineer (TS/SCI with Polygraph Required)
...Overview \ \ We are seeking an experienced Software Engineer to develop, maintain, and enhance complex software systems supporting mission... ...components. \\\ Required Qualifications \ \ Active TS/SCI security clearance with a current polygraph. \\ Bachelor's...
Senior
Full time
Local area
J
Remote
8 hours ago
Senior Software Engineer TS/SCI with Poly
...technology solutions firm in Annapolis is seeking an experienced Software Engineer to develop and maintain complex software systems, ensuring... ...software development teams. Candidates must possess a TS/SCI clearance. Competitive benefits include 401k, health insurance...
Senior
JASINT Consulting and Technologies, LLC
Maryland
5 days ago
Senior CNO Software Engineer - TS/SCI Clearance
...MANTECH in Hanover, MD seeks a Senior CNO Developer to advance mission-critical cyber capabilities... ...will design, implement, test, and document software for diverse platforms, and mentor teams across disciplines. Active TS/SCI with Polygraph clearance is required. You will...
Senior
6AM City
Annapolis, MD
1 day ago
Entry to Mid-Level Software Engineer (TS/SCI with Polygraph Required)
$85k - $175k
...Description A day in the life: As a Software Engineer on this team, you must be skilled and self-motivated to develop cutting-edge... ...able to manage multiple tasks and priorities effectively. A TS/SCI with Polygraph level of clearance Bonus Skills : Experience...
Full time
Summer holiday
Immediate start
Red Alpha
Remote
8 hours ago
Senior Software Engineer - TS/SCI with Poly
...Helm Point Solutions, Inc. is seeking a Senior Software Engineer to support critical government missions at Ft. Meade, MD. This role requires TS/SCI with Polygraph clearance and offers fully funded, full-time employment. You will design, document and test architectures...
Senior
Full time
Helm Point Solutions
Maryland
2 days ago
Full Stack Software Engineer with TS/SCI clearance
...We are looking for Lead Software Engineers with an active TS/SCI clearance to join our team at Prominent Edge. We are a small, stable, growing company... ...technologies when appropriate. We've been a 100% remote company before it was cool to be remote. We hire the best...
Remote work
Full time
Work experience placement
Prominent Edge Llc
Remote
8 hours ago
Senior Software Engineer - TS/SCI with Poly
...Core One is seeking a seasoned software professional to design, develop, and maintain complex applications that support Source Registry... ...and database maintenance, with certification in IBM Watson or similar tools. Active TS/SCI with Poly is required. #J-18808-Ljbffr...
Senior
Core One
Washington DC
1 day ago
SOFTWARE ENGINEER - Spring Boot -Framework - 12+ yrs of Experience - TS/SCI w/Poly clearance is r
$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... ...Required: No Shift: Day Remote Type: Onsite Security Clearance: Current...
Remote work
Full time
Contract work
Temporary work
Shift work
Halogen Engineering Group, Inc
United States
8 hours ago
Software Engineer - TS/SCI w/ Polygraph
...: Annapolis Junction, MD and Alexandria, VA Category: Software Engineer (SWE) - Demonstrated experience with Java is required for these positions Travel Required: No Remote Type: No Clearance: TS/SCI w/ Polygraph Software Engineer The Software Engineer...
Remote work
Full time
Sunayu
Annapolis Junction, MD
8 hours ago
SOFTWARE ENGINEER - DevOps - 20+ yrs of Experience - TS/SCI w/Poly clearance is required - RC
$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... ...MD Travel Required: No Shift: Day Remote Type: Onsite Security Clearance: Current TS/...
Remote work
Full time
Contract work
Temporary work
Shift work
Halogen Engineering Group, Inc
Remote
8 hours ago
SOFTWARE ENGINEER - Offensive/Defensive Cyber Operations - 7+ yrs of Experience - TS/SCI w/Poly c
$25k
...Software Engineer \- Offensive\/Defensive Cyber Operations \- 7+ yrs of Experience \- TS\/SCI w\/Poly Required \\\ \ \ Halogen Engineering Group is looking... ...No \ \\\ Shift: \ \ \ Day \ \\\ Remote Type: \ \ \ Onsite \ \\\ Security Clearance...
Remote work
Full time
Contract work
Temporary work
Work experience placement
Shift work
Halogen Engineering Group
Linthicum, MD
8 hours ago
Software Engineer TS/SCI
...Job Title: Software Engineer (TS/SCI Required) Location: Dayton, OH (Remote but willing to travel) Clearance: Active TS/SCI required Employment Type: Full-Time About the Role Rackner is seeking a highly skilled Software Engineer to support mission-critical...
Remote work
Weekly pay
Full time
Home office
Rackner
Dayton, OH
8 hours ago
Software Engineer (Machine Translation)TS/SCI with Poly)
...providing Information Technology, Engineering Services, Program Management,... ...testing. Collaborate with senior researchers and engineers to... ...disciplines. ~ Active TS/SCI with Full Scope Polygraph (FSP... ...to include onsite, hybrid or remote, as dictated by position 4....
Remote work
Full time
For contractors
Flexible hours
Solerity
Remote
8 hours ago
Software Engineer (TS/SCI) {S}
...We are seeking aspiring engineers, signals processors,... ...signal and image processing software, building on our 80-... ...electro-optical, and other remote sensing capabilities.... ...to have an active TS/SCI U.S. Government Security... ...levels, from entry level to senior level for this position...
Remote work
Full time
Temporary work
Work at office
Visa sponsorship
Flexible hours
Arka Group, L.p.
Chantilly, Loudoun County, VA
8 hours ago
Software Engineer (TS/SCI) {S}
...We are seeking aspiring engineers, signals processors,... ...signal and image processing software, building on our 80-... ...electro-optical, and other remote sensing capabilities.... ...to have an active TS/SCI U.S. Government Security... ...levels, from entry level to senior level for this position...
Remote work
Full time
Temporary work
Work at office
Local area
Visa sponsorship
Flexible hours
Arka Group, L.p.
Ypsilanti, MI
8 hours ago
Senior Software Engineer - Cryptanalytic Tools (TS/SCI)
$230k - $275k
...Meade, Maryland is seeking a motivated tool developer to enhance cryptanalytic tools for critical programs. The role demands an active TS/SCI clearance and expertise in Java application development. The annual salary range is $230,000 - $275,000, complemented by a...
Senior
Navstar
Maryland
4 days ago
Senior Software Engineer - TS/SCI Clearance
$131.3k - $237.35k
Leidos is seeking a driven and experienced Senior Software Engineer to support a high-stakes, mission-critical program. You will architect, develop... ...experience, a Bachelor's degree in Computer Science, and a TS/SCI clearance with Polygraph. The salary ranges from $131,300...
Senior
Relocation package
Leidos
Annapolis, MD
4 days ago
Junior Software Engineer - TS/SCI Clearance (Remote)
$50k - $120k
...GliaCell Technologies is seeking a Junior Software Engineer to support a U.S. Government customer. This full-time role is focused on sustaining... ...unique requirements. Ideal candidates should have an active TS/SCI security clearance and relevant education or experience. The...
Remote work
Full time
GliaCell Technologies LLC
Annapolis, MD
5 days ago
Software Engineer 2 (Tester) (TS/SCI with Poly)
...providing Information Technology, Engineering Services, Program Management... ...YOU BRING: · TS/SCI Clearance with polygraph ·... ...problems · Experience briefing senior-level management · Demonstrated... ...to include onsite, hybrid or remote, as dictated by position 4....
Remote work
Full time
For contractors
Flexible hours
Solerity
Remote
8 hours ago
Senior Cloud-Native Platform Engineer (Active TS/SCI /w Poly)
...TS/SCI With Polygraph Required Ready to build mission-critical systems in a modern, cloud-native environment? Bring your engineering expertise and passion for innovation to a team where your work... ...has real impact. Job Description Software Engineer Principal TS/SCI With Polygraph...
Remote work
Senior
Praxis Engineering
Annapolis, MD
3 days ago
Software Engineer (Mid-Level) - TS/SCI with Poly
...Job Description Job Description Software Engineer (Mid-Level) Joint Base Anacostia, Arlington, VA, or Reston, VA Active TS/SCI with Poly Clearance required @Orchard is retained by a top geospatial technology company supporting important operations missions...
@Orchard
Arlington, VA
8 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!