Full Stack Developer with Security Clearance

Job Details: Who We Are Sellers & Associates, LLC (S&A) is a Veteran Owned Small Business (VOSB) that provides effective and affordable Programmatic and Engineering Support Services and Solutions to our Government and Commercial Clients. We work directly with our clients taking the time to understand their culture and requirements designing a custom solution tailored to meet their unique needs at an affordable price without sacrificing quality. Our specialties include Program/Engineering Management, Training/Training Technology, Technology/Product Development Strategy and Analysis, Project Management (Cost, Schedule, Scope & Quality), and Strategic Planning applied within our clients' unique domains and context. Benefits: We have Medical, Dental, Vision, Pet Insurance, 401k with 4% match. Long/Short Term Disability and Life Insurance. 25 days of PTO per year. Employees may choose to work or take PTO on Federal Holidays (pending contract requirements). We also offer Tuition Reimbursement up to $5,250 per year for areas of study relevant to employee position responsibilities and opportunities for professional growth. Position Overview:
We are seeking a versatile and detail-oriented Full Stack Software Developer to join our team in a hybrid capacity, preferably in the Washington, D.C. area, but applicants located in Chesapeake, VA will also be considered. All candidates must be willing and able to attend in-person meetings in Washington, D.C. as needed. This full-time position requires a hands-on developer with strong quality assurance instincts and the ability to work across the full technology stack-including front-end, back-end, database, and cloud infrastructure. The ideal candidate will have experience with secure application development, a passion for clean, testable code, and an eye for quality throughout the software delivery lifecycle. Responsibilities:

• Design, develop, and deploy secure and scalable applications using modern full-stack technologies.

• Deliver features across front-end interfaces, server-side logic, APIs, databases, and cloud infrastructure.

• Write clear, maintainable, and well-documented code with a focus on testability and code quality.

• Build and execute test plans, unit tests, and integration tests to ensure functional reliability and system integrity.

• Conduct QA tasks such as test case development, regression testing, and bug resolution prior to deployment.

• Integrate and manage databases (e.g., SQL Server, MySQL, MongoDB, Redis) and ensure data integrity.

• Consume and develop RESTful APIs and integrate with cloud platforms such as AWS.

• Use Git version control to manage code collaboration and maintain clean project histories.

• Collaborate with cross-functional teams to support secure, functional, and intuitive applications. Job Requirements: Required Qualifications:

• Active Secret clearance required; Top Secret (TS) will be held

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field is preferred. A minimum of 6 years of total, relevant professional experience may be substituted in lieu of a degree.

• 2-4 years of hands-on full-stack development experience.

• Proficiency in:
o Front-End: HTML, CSS, JavaScript, and a modern framework such as React or Angular
o Back-End: Python and Node.js (highly preferred)
o Databases: Experience with at least one of the following: SQL Server, MySQL, MongoDB, or Redis

• Strong understanding of software testing principles, debugging techniques, and QA best practices.

• Familiarity with Git for source control and team-based development workflows.

• Practical experience with AWS cloud services and deployment pipelines.

• Attention to detail, excellent problem-solving skills, and commitment to delivering high-quality solutions.

• Understanding of Jira / Agile methodology.

• Experience with Data Visualization Tools including Tableau, Power BI, Power Apps, etc. Preferred Qualifications:

• Familiarity with QA automation frameworks (e.g., Jest, PyTest, Cypress, Selenium).

• Knowledge of containerized development and deployment (e.g., Docker).

• Experience with DevOps tools and CI/CD pipelines.

• Previous experience working on government contracts or secure software environments.

• Familiarity with Naval Sea Systems Command (NAVSEA), and/or U.S. Navy

• Agile certifications such as Certified ScrumMaster (CSM), Professional Scrum Master (PSM I/II), SAFe Scrum Master (SSM), or PMI Agile Certified Practitioner (PMI-ACP).