Senior Software Developer; Clearance Required Security Clearance

Position: Senior Software Developer (Clearance Required) with Security Clearance
Responsibilities Noblis is seeking an experienced Software Developer with an active TS/SCI with a Polygraph to support mission-critical national security initiatives in Reston, Virginia. As a Software Developer on our team, you will collaborate with federal clients to rapidly design, develop, and deliver innovative solutions that address their most pressing mission challenges. You will work alongside a multidisciplinary team of developers, data scientists, subject matter experts, and cyber analysts to design and build new applications, enhance existing systems, and integrate emerging technologies.

In this role, you will analyze client challenges, identify opportunities for improvement, and apply modern tools and technologies to develop effective, mission-focused solutions. Your responsibilities will include software development, debugging, system integration, and collaborating in a team-oriented environment. You will also regularly communicate with teammates, technical leads, and clients to provide project updates, share progress, and ensure alignment with mission objectives.

Job Responsibilities:

* Apply state-of-the-art technologies to solve complex technical and mission challenges.
* Develop cutting-edge solutions that improve system performance, reliability, scalability, and distributed processing capabilities.
* Design, build, and enhance applications that support evolving client needs.
* Work in an Agile environment to rapidly iterate, collaborate, and deliver impactful solutions for our clients.

Required Qualifications
* Active Top Secret/SCI (TS/SCI) clearance with a current Polygraph
* Bachelor's degree with 8 years of related experience; OR Master's degree with 6 years of related experience; OR associate's degree with 11 years of related experience; OR High School diploma/GED with 14 years of related experience
* Proficiency in one or more programming languages:
Python, Java, or JavaScript, with demonstrated experience developing clean, maintainable, and production-ready code.
* Hands-on experience with relational and/or No

SQL databases, including PostgreSQL, MySQL, Oracle, or MongoDB, with knowledge of schema design, data modeling, and query optimization.
* Strong understanding of software testing methodologies and quality assurance best practices, including unit testing, integration testing, and automated testing frameworks.
* Proven experience throughout the full Software Development Lifecycle (SDLC), from requirements analysis and design through implementation, deployment, and ongoing maintenance.
* Proficiency with Git-based version control systems, including experience with branching strategies, pull request workflows, and code review practices.
* U.S. Citizenship is required Desired Qualifications
* Proven ability to manage and contribute to multiple concurrent projects while maintaining high-quality deliverables, meeting deadlines, and effectively prioritizing competing requirements.
* Experience with containerization and orchestration technologies, including Docker and Kubernetes, to support scalable and reliable application deployments.
* Hands-on experience deploying, configuring, and maintaining applications in cloud environments, such as AWS, Azure, or Google Cloud Platform (GCP).
* Working knowledge of Python web frameworks, including FastAPI and Flask, for developing RESTful APIs, microservices, and scalable backend solutions.
* Demonstrated ability to work across the full technology stack, with the flexibility and willingness to learn, adopt, and apply new technologies as project needs evolve.
* Experience working in Agile development environments, including sprint planning, daily standups, backlog refinement, and iterative delivery practices.
* Advanced proficiency in Python 3, including modern language features, type hinting, and package management best practices. Overview Overview Noblis and our wholly owned subsidiaries, Noblis ESI and Noblis MSD, take on some of the nation's toughest challenges, delivering advanced solutions to our customers' most critical missions. We bring together leading scientific, engineering, and management expertise in a culture grounded in objectivity and collaboration, ensuring our work creates lasting impact across federal missions.

We work with a broad range of government agencies in the defense, intelligence, and federal civilian sectors. Learn more and find opportunities lis.org Why Work at Noblis At Noblis, we share a passion for excellence and innovation, and we create an environment where people can do meaningful work while maintaining the balance that keeps them energized and fulfilled. We seek out individuals with a natural curiosity and desire to collaborate and learn.

We believe our people are our greatest strength, and we consistently seek exceptionally skilled, mission-driven professionals who care deeply about doing work that enriches lives and makes our nation safer. Noblis has earned numerous workplace awards for our culture, our…