Full Stack Developer (Engineer Software 3)

Full Stack DeveloperHII Mission Technologies is seeking a highly skilled Full Stack Developer to join our growing software engineering team. This position is ideal for someone who enjoys working across the entire technology stack-front end, back end, APIs, databases, and cloud environments-to deliver secure, scalable, and high performing applications for mission critical systems. We're looking for a developer who can seamlessly blend modern frontend frameworks with robust backend engineering, while contributing to architecture, system design, and full lifecycle development.

Responsibilities: Design, build, and maintain full stack web applications using modern JavaScript frameworks (React, Angular, or Vue) and server side technologies. Develop RESTful APIs and integrate frontend interfaces with back-end services for seamless, high performance functionality. Engineer scalable application architectures and contribute to system level design decisions.

Implement secure coding practices, classification marking tools, and access control functionality. Utilize HTML, CSS, JavaScript, and modern frameworks to develop responsive, intuitive user interfaces. Collaborate with designers, product managers, backend engineers, and data scientists to create cohesive, end to end user experiences.

Write clean, maintainable, and well tested code, including unit tests and quality assurance validation. Perform troubleshooting across the entire stack-diagnosing and resolving issues from the UI layer down to the database or API level. Lead development efforts on new capabilities, reusable components, and internal tooling.

Contribute to DevOps workflows using Git, CI/CD pipelines, and configuration management tools. Participate in the full software lifecycle: requirements analysis, design, implementation, testing, deployment, and maintenance. Review and test software components for adherence to requirements and document results.

Analyze system requirements and translate them into individual software components and architectures. Mentor junior developers and help improve team processes and best practices. Work independently or in a collaborative team environment while ensuring high quality technical outcomes.

Requirements: 5+ years of relevant experience with a Bachelor's degree; OR 3+ years with a Master's; OR 0 years with a PhD/JD; OR 9+ years relevant experience with a high school diploma. Current Secret U.S. Government security clearance, with ability to upgrade.

U.S. citizenship (required). Experience across the software stack, including front-end frameworks (Vue, React, Angular) and backend development.

Ability to obtain IATT Level 2 Compliance (Security+, CySA+, SSCP) within 60 days. Hands on experience with agile development processes. Proficiency with configuration management tools (Git, Nexus, Maven).

Strong problem solving skills and the ability to learn quickly. Ability to work independently and collaboratively in team environments. Hybrid work availability: 1-2 days/month on site in Odenton, MD, with flexibility for schedule changes.

Preferred Requirements: Experience with AGILE methodologies and modern development tool suites (Jira, Confluence, YouTrack, GitHub). Active Top Secret clearance. Comfortable working in Linux and command line environments.

Experience with system architecture, API design, or cloud-native development is a plus. Physical Requirements: Adequate visual acuity and manual dexterity for meeting the requirements Software Engineer family. HII is more than a job - it's an opportunity to build a new future.

We offer competitive benefits such as best-in-class medical, dental and vision plan choices; wellness resources; employee assistance programs; Savings Plan Options (401(k)); financial planning tools, life insurance; employee discounts; paid holidays and paid time off; tuition reimbursement; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application.