Chantilly, Virginia, United States · On-site
$95k–$180k/yr
Description About Millennial Software: Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, automation, DevSecOps, and machine learning…
Skills: Backend development, Python, Java, Go, C#
Chantilly, Virginia, United States · On-site
$180k–$210k/yr
Description About Millennial Software: Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, automation, DevSecOps, and machine learning…
Skills: Backend development, API design, Python, Java, Go
Chantilly, Virginia, United States · On-site
$95k–$180k/yr
Description About Millennial Software: Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, automation, DevSecOps, and machine learning…
Skills: Space situational awareness, Orbital mechanics, Astrodynamics, Python, MATLAB
Chantilly, Virginia, United States · On-site
$180k–$210k/yr
Description About Millennial Software: Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, automation, DevSecOps, and machine learning…
Skills: Space Situational Awareness, Orbital mechanics, Astrodynamics, Algorithm development, Python
Chantilly, Virginia, United States · On-site
SAIC is seeking MBSE SME supporting SAIC’s large SETA program, supporting the NRO’s Ground Enterprise Directorate (GED), Advanced Ground Office. As an MBSE SME, you will shape how GED implements Digital Engineering, acce…
Skills: MBSE, Systems Engineering, SysML, UAF, Digital Engineering
Andover, Massachusetts, United States · On-site
Job Summary: Mercury Systems is seeking the best and brightest talent to help us bring cutting-edge technology to mission-critical aerospace and defense applications, advancing innovation where it matters most. We bridge…
Skills: Contract management, Government contracting, FAR/DFARS, Contract negotiation, Risk analysis
Tucson, Arizona, United States · On-site
$98k–$123k/yr
Why Join Rincon Research Corporation (RRC)? At Rincon Research Corporation, our primary business is innovating, developing, and fielding digital signal processing (DSP) products and services for the United States Defense…
Skills: C++, Python, Linux, Digital signal processing, Geolocation algorithms
Tucson, Arizona, United States · On-site
$167k–$205k/yr
Why Join Rincon Research Corporation (RRC)? At Rincon Research Corporation, our primary business is innovating, developing, and fielding digital signal processing (DSP) products and services for the United States Defense…
Skills: PostgreSQL, Database architecture, SQL, Python, Shell scripting
Chantilly, Virginia, United States · On-site
Why LeoLabs? At LeoLabs, we’re building the living map of activity in space. Through our proprietary global radar network and AI-enabled analytics platform, we collect millions of measurements daily on more than 25,000 o…
Skills: Program Management, Stakeholder Management, Risk Mitigation, Contract Execution, Schedule Management
Chantilly, Virginia, United States · On-site
SAIC is seeking a Collection Orchestration Mission Engineer to support, SAIC’s Prime SETA program supporting the NRO’s Ground Enterprise Directorate (GED) in Chantilly, VA. GED leads enterprise‑level acquisition, integra…
Skills: Systems Engineering, Cloud Computing, Agile Methodologies, Software Architecture, CI/CD Pipelines
Chantilly, Virginia, United States · On-site
Overview We are seeking an experienced Master Planner Scheduler to serve as a critical member of our Program Management Office (PMO), ensuring the successful planning, coordination, and execution of complex Department of…
Skills: Integrated Master Schedules, Microsoft Project, Microsoft Project Server, Microsoft Project Professional, Earned Value Management
Chantilly, Virginia, United States · On-site
Summary We are seeking an experienced Master Planner Scheduler to serve as a critical member of our Program Management Office (PMO), ensuring the successful planning, coordination, and execution of complex Department of …
Skills: Integrated Master Schedules, Microsoft Project, Microsoft Project Server, Microsoft Project Professional, Earned Value Management
Chantilly, Virginia, United States · On-site
SAIC is seeking an Model Based Systems Engineer in Chantilly, VA to support SAIC’s large SETA program, supporting the NRO’s Ground Enterprise Directorate (GED), Advanced Ground Office. This role puts you at the heart of …
Skills: Model-Based Systems Engineering, MBSE, Systems Engineering, Digital Engineering, Agile Principles
Chantilly, Virginia, United States · On-site
Responsibilities Be part of a fast-paced, high energy, team as an early adopter and leader in the digital transformation of systems engineering. To engineer increasingly complex systems and capabilities, the government i…
Skills: Model Based Systems Engineering, MBSE, SysML, UML, Java
Chantilly, Virginia, United States · On-site
Join a mission driven satellite program at the forefront of national defense innovation. Our team is developing cutting edge technologies that directly support critical Department of War priorities, combining both proven…
Skills: Systems Engineering, Satellite Systems, Government Acquisition, Requirements Development, Mission Design
Chantilly, Virginia, United States · On-site
Overview VTG is looking for a Information Systems Security Engineer (ISSE) in Chantilly, VA What will you do? The Information Systems Security Engineer (ISSE) will design and implement cybersecurity controls, conduct vul…
Skills: Cybersecurity, Vulnerability Assessment, System Scanning, A&A Documentation, Network Security
Chantilly, Virginia, United States · On-site
Overview VTG is seeking a Systems Engineer for a technical development program supporting the Sponsor’s Entitlement Programs as well as IdAM /ICAM, Authentication, Authorization, Attributes and Digital Policy Manag…
Skills: Systems Engineering, Cloud Computing, Amazon Web Services, SQL, Agile Methodology
Chantilly, Virginia, United States · On-site
Overview VTG is seeking a detail-oriented Systems Integrator specializing in the lifecycle management of Digital Access Control Policies that offers deep expertise in translating legal and security mandates into actionab…
Skills: Systems Integration, Identity And Access Management, Digital Access Control Policies, Attribute-Based Access Controls, Governance
Chantilly, Virginia, United States · On-site
Overview VTG is seeking a Software Developer for a 200+ FTE technical development program supporting the Sponsor’s Entitlement Programs as well as IdAM /ICAM, Authentication, Authorization, Attributes and Digital P…
Skills: Java, Spring Boot, Angular, Typescript, Amazon Web Services
Chantilly, Virginia, United States · On-site
Responsibilities The Systems Integrator will support the Sponsor's organization as a critical member of the team. The candidate will be responsible for a wide range of duties including cross-organizational forums, organi…
Skills: Systems Integration, Requirements Gathering, Program Management, Risk Management, Project Scheduling
Chantilly, Virginia, United States • On-site
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Design, develop, and maintain scalable backend services, APIs, and data models to support mission-critical applications. Collaborate with cross-functional teams to ensure high performance, reliability, and secure integration of system components.
Requires 2-10 years of backend software engineering experience and an active TS/SCI clearance. Proficiency in backend programming languages, database management, and container orchestration platforms is essential.
Description
Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, automation, DevSecOps, and machine learning.
Job Description:
Millennial Software is seeking a Junior - Mid level Backend Software Developer to join our collaborative team supporting National Security. You’ll design, develop, and support scalable APIs and services using a tech stack that power data-driven applications and enable mission-critical decisions. You will focus on backend architecture, data modeling, integrations, performance, and reliability while partnering with frontend engineers, analysts, and users.
The ideal candidate is passionate about the full lifecycle—design, coding, testing, deployment, and sustainment—and comfortable delivering secure, high-quality tools in mission environments.
Essential Functions:
Requirements
Required Qualifications:
Nice to have:
Millennial Software Solutions Inc. is an Equal Opportunity Employer and does not discriminate in employment on the basis of race, color, religion, sex, national origin, political affiliation, sexual orientation, gender identity, marital status, disability and genetic information, age, membership in an employee organization, or other non-merit factor.
Revolutionizing the landscape of security and defense.
Empowering Innovation in Defense & National Security Millennial Software is a trusted partner in defense technology, delivering cutting-edge software solutions, automation, DevSecOps, and AI/ML capabilities to enhance national security. Founded in 2019 by mission-driven engineers, we collaborate with government agencies and industry leaders to develop mission-critical technologies that safeguard the future. What We Do We specialize in full-spectrum software solutions for defense and aerospace, ensuring secure, scalable, and high-impact outcomes: Advanced Software Engineering – Secure, scalable solutions for mission-driven applications AI & Machine Learning – Driving automation and operational efficiency in defense environments Cybersecurity & Cloud Services – Protecting mission-critical assets with secure, resilient architectures Mission Solutions & Strategic Consulting – Optimizing defense operations through cutting-edge technology Our People Are the Difference At Millennial Software, our strength is our team. We are engineers, analysts, and innovators committed to shaping the future of defense technology. Our people-first approach fosters collaboration, continuous learning, and mission-driven excellence. Join Us We are always looking for exceptional talent and strategic partnerships to drive the next era of defense innovation. Explore our career opportunities and connect with us to learn how we can collaborate.
Offices: Chantilly, Virginia, US
Based on 801 listings with disclosed salaries, most engineering jobs in Chantilly, VA pay between $71k–$218k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 1,096 open engineering positions in Chantilly, VA listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Booz Allen Hamilton, SAIC, CACI International Inc, VT Group (VTG), The Aerospace Corporation, among others. Browse the listings above to see every active employer.
Yes — 124 of the 1096 open engineering positions offer remote or hybrid work (16 remote, 108 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
