Full-Stack Developer, Mid-SR - TS/SCI $150K-$230K +15%

Millennial Software Solutions•Herndon, VA

About The Position

Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, automation, DevSecOps, and machine learning. We are an employee-owned company, every employee receives equity in the company. This role will support semantic data integration, knowledge management, advanced analytics, and AI/ML capabilities through the development of APIs, microservices, and applications that integrate enterprise data sources and knowledge graph technologies.

Requirements

Must be a U.S. Citizen
Active TS/SCI clearance
Must be able to successfully obtain and maintain a CI Polygraph
17+ years of relevant experience with a Bachelor’s Degree or 12+ years of relevant experience with a Graduate Degree
Demonstrated experience designing, developing, and maintaining enterprise software applications using modern programming languages such as Java, Python, or C#
Experience developing RESTful APIs, microservices, and distributed applications
Experience integrating applications with relational databases, graph databases, or semantic data platforms
Experience with containerization technologies such as Docker and Kubernetes/OpenShift
Familiarity with Agile software development methodologies, DevSecOps practices, and CI/CD pipelines
Experience with version control systems such as Git
Ability to communicate complex technical concepts effectively to technical and non-technical stakeholders

Nice To Haves

Experience supporting Object-Based Intelligence, Intelligence Community, or Department of Defense mission systems
Experience developing applications utilizing Semantic Web technologies, including RDF, OWL, SPARQL, knowledge graphs, or graph databases
Experience integrating AI/ML services, large language models (LLMs), or advanced analytics into enterprise applications
Experience with cloud-native application development using AWS, Azure, or Red Hat OpenShift
Experience implementing secure software development practices in accordance with Government cybersecurity requirements
Experience with event-driven architectures, message brokers, and enterprise integration frameworks
Relevant software engineering or cybersecurity certifications, such as AWS Certified Developer, Azure Developer Associate, Red Hat Certified Specialist, Security+, or equivalent
Experience providing technical leadership, mentoring, and knowledge transfer to Government personnel or multidisciplinary teams

Responsibilities

Design, develop, test, deploy, and maintain software applications and microservices supporting mission requirements.
Develop APIs and backend services that integrate with enterprise ontologies, knowledge graphs, semantic databases, and object-management systems.
Implement software solutions utilizing Semantic Web technologies, including RDF, OWL, SPARQL, and graph-based data models.
Collaborate with technical teams and Government stakeholders to translate mission requirements into scalable and maintainable software solutions.
Develop secure, containerized applications using modern software engineering and cloud-native practices.
Integrate heterogeneous data sources through RESTful APIs, messaging services, and enterprise data integration frameworks.
Develop automated unit, integration, and system tests while contributing to CI/CD pipelines.
Optimize application performance, scalability, and reliability to support mission operations and advanced analytics.
Participate in Agile development activities, including sprint planning, code reviews, technical design sessions, and backlog refinement.
Maintain software design documentation, interface specifications, API documentation, and technical implementation guides.
Support AI/ML initiatives by developing software services that provide access to semantic data, knowledge graphs, and contextual reasoning capabilities.
Provide technical leadership, mentoring, and knowledge transfer to Government personnel and project team members as appropriate.

Benefits

Equity in the company
100% company-paid medical, dental, and vision premiums for you and all dependents
Ability to get increased salary if you don't need medical/dental/vision
100% company-paid disability and life insurance benefits
15% 401(k) company contribution
30 days of PTO/holidays
Generous training budget
Paid Paternal and Maternal Leave
Business development / growth incentives
Top notch company swag