Millennial Software

Systems Engineer/Product Owner - TS/SCI with CI Poly, $140K - $210K +15% 401k

Systems Engineer/Product Owner

Senior Systems Engineer with Product Owner experience; TS/SCI with CI Poly; 10+ years in STEM; SDA program experience; require backlog management and agile development skills.

Data Engineer - Expert, TS/SCI with FSP - $200K-$265K + 15% 401k

Data Engineer

Active TS/SCI with Full Scope Poly; 12+ years in CS/Engineering with a master; 8+ years data pipelines; strong Python and AWS; SQL; Linux.

Data Engineer - Full Performance, TS/SCI with FSP - $115K-$170K + 15% 401k

Active TS/SCI with Full Scope Polygraph; 3-5 years data pipeline experience; 2+ years Python; AWS; relational DBs (PostgreSQL, Oracle, MySQL); Linux/shell; JSON data handling.

Full-Stack Developer - Mid-Senior, TS/SCI with CI Poly - $150K-$200K + 15% 401k

Full-Stack Developer

Mid-Senior full-stack developer with TS/SCI clearance and CI poly, 5+ years in full-stack dev, containerization ( Docker/Kubernetes ), Rust/JS/Python/Java, Linux, CI/CD, strong communication.

Millennial Software Solutions Inc

DevOps Engineer - Mid-SR, TS/SCI with CI Poly - $150K-$200K + 15% 401k

DevOps Engineer

DevOps Engineer with TS/SCI w/ CI Poly, 4+ years exp, Terraform/Ansible, Linux, scripting, Kubernetes, AWS, Security+; Bachelor's in CS/Software Eng.

Millennial Software Solutions Inc - Senior Scientist SDA, TS/SCI with CI Poly - $180K-$210K + 15% 401k

Senior Scientist SDA, TS/SCI with CI Poly

Ten+ years in space-related SSA, orbital analysis, and collision avoidance; TS/SCI clearance; Bachelor's degree; on-site Virginia locations.

Millennial Software Solutions Inc - Junior-Mid Scientist SDA, TS/SCI with CI Poly - $95K - $180K + 15% 401k

Scientist

2-10 years space/SSA experience; TS/SCI; Linux; Python/MATLAB; Bachelor's or equivalent; on-site Virginia or Colorado

Millennial Software Solutions Inc - Senior Backend Software Engineer, TS/SCI with CI Poly - $180K-$210K + 15% 401k

Senior Backend Software Engineer

Active TS/SCI clearance with CI poly; 10+ years backend software experience; strong backend language and API design skills; cloud, containers, and CI/CD proficiency; on-site in VA or CO; Bachelor's degree.

Millennial Software Solutions Inc - Junior-Mid Backend Software Engineer, TS/SCI with CI Poly - $95K-$180K + 15% 401k

Backend Software Engineer

Experience building backend services and APIs; proficient in a backend language; knowledge of databases; containerization; TS/SCI clearance.

Millennial Software Solutions Inc - Senior Full Stack Developer, TS/SCI with CI Poly - $180K-$210K + 15% 401k

Senior Full Stack Developer

Senior Full Stack Developer with TS/SCI clearance and CI Poly; experience delivering production software across frontend and backend, deploying on Kubernetes with Docker and CI/CD.

Millennial Software Solutions Inc - Junior-Mid Full Stack Developer, TS/SCI with CI Poly - $95K-$180K + 15% 401k

Full Stack Developer

Experience delivering production software across frontend and backend; TS/SCI clearance; on-site in VA/CO; Bachelor's degree; strong API, containerization, Kubernetes, CI/CD skills.

Title	Location	Date
Systems Engineer/Product Owner - TS/SCI with CI Poly, $140K - $210K +15% 401k Full Time · $140K-$210K · 10+ YOE Chantilly, Virginia, United States · Onsite	Chantilly, Virginia, United States Onsite	Apr 21, 2026
Data Engineer - Expert, TS/SCI with FSP - $200K-$265K + 15% 401k Full Time · $200K-$260K · 12+ YOE Chantilly, Virginia, United States · Onsite	Chantilly, Virginia, United States Onsite	Mar 26, 2026
Data Engineer - Full Performance, TS/SCI with FSP - $115K-$170K + 15% 401k Full Time · $115K-$170K · 3+ YOE Chantilly, Virginia, United States · Onsite	Chantilly, Virginia, United States Onsite	Mar 26, 2026
Full-Stack Developer - Mid-Senior, TS/SCI with CI Poly - $150K-$200K + 15% 401k Full Time · $150K-$200K · 5+ YOE Fairfax, Virginia, United States · Onsite	Fairfax, Virginia, United States Onsite	Mar 25, 2026
DevOps Engineer - Mid-SR, TS/SCI with CI Poly - $150K-$200K + 15% 401k Full Time · $150K-$200K · 4+ YOE Fairfax, Virginia, United States · Onsite	Fairfax, Virginia, United States Onsite	Feb 20, 2026
Millennial Software Solutions Inc - Senior Scientist SDA, TS/SCI with CI Poly - $180K-$210K + 15% 401k Full Time · $180K-$210K · 10+ YOE Virginia, United States · Onsite	Virginia, United States Onsite	Jan 9, 2026
Millennial Software Solutions Inc - Junior-Mid Scientist SDA, TS/SCI with CI Poly - $95K - $180K + 15% 401k Full Time · $95K-$180K · 2+ YOE Northern Virginia or Virginia Beach or Colorado Springs · Onsite	Northern Virginia or Virginia Beach or Colorado Springs Onsite	Jan 9, 2026
Millennial Software Solutions Inc - Senior Backend Software Engineer, TS/SCI with CI Poly - $180K-$210K + 15% 401k Full Time · $180K-$210K · 10+ YOE Fairfax or Chantilly or McLean or Sterling or Colorado Springs · Onsite	Fairfax or Chantilly or McLean or Sterling or Colorado Springs Onsite	Jan 8, 2026
Millennial Software Solutions Inc - Junior-Mid Backend Software Engineer, TS/SCI with CI Poly - $95K-$180K + 15% 401k Full Time · $95K-$180K · 2+ YOE Fairfax or Chantilly or McLean or Sterling or Colorado Springs · Onsite	Fairfax or Chantilly or McLean or Sterling or Colorado Springs Onsite	Jan 8, 2026
Millennial Software Solutions Inc - Senior Full Stack Developer, TS/SCI with CI Poly - $180K-$210K + 15% 401k Full Time · $180K-$210K Fairfax or Chantilly or McLean or Sterling or Colorado Springs · Onsite	Fairfax or Chantilly or McLean or Sterling or Colorado Springs Onsite	Jan 8, 2026
Millennial Software Solutions Inc - Junior-Mid Full Stack Developer, TS/SCI with CI Poly - $95K-$180K + 15% 401k Full Time · $95K-$180K Fairfax or Chantilly or McLean or Sterling or Colorado Springs · Onsite	Fairfax or Chantilly or McLean or Sterling or Colorado Springs Onsite	Jan 8, 2026

Activities	Software developmentSpace domain awarenessAutomation engineeringDevSecOps servicesAI data analysis
Headquarters	US
Industries	DefenseSoftware Development
Name	Millennial Software
Employees	42
Type	Private
Tagline	Develops software and automation tools for national security and defense.
Founded	2,019
Website	ms2ic.com
Latest Funding Round	Funding Round
Latest Funding Year	2,025
Latest Investors	The Catalyst AcceleratorSDA TAP LAB

Millennial Software

About Millennial Software