UI Front End Software Engineer

About the Role

Grvty seeks a UI Front End Software Engineer to own CODEX interfaces within agile environments while mentoring peers and defining front end standards. The role requires translating design concepts into accessible user flows and debugging integrations alongside system engineers. This position operates in Annapolis Junction, Maryland, under a mission-critical engagement requiring TS/SCI + Poly clearance. The hire will be responsible for crafting robust, high-performance user interfaces that directly support critical defense-related operations. Success in this position hinges on the ability to balance rigorous technical standards with rapid delivery in a sensitive government context. You will serve as a key technical contributor and leader, shaping the direction of front end architecture for vital systems. Your work will ensure that complex backend services are presented through intuitive, reliable, and secure web interfaces. This role demands a self-starter capable of operating with minimal supervision while maintaining strict adherence to compliance and security protocols.

Key Facts

What you'll do

• Translate intricate design systems and wireframes into semantic, responsive HTML, CSS, and JavaScript implementations that meet strict performance and accessibility benchmarks.
• Engineer and maintain reusable component libraries using modern frameworks such as React, Angular, or Vue to ensure consistency and accelerate development velocity across the engineering organization.
• Partner with systems engineers and backend developers to integrate complex APIs, troubleshoot data flow issues, and optimize the efficiency of client-server communication.
• Implement sophisticated algorithms and real-time data visualization techniques to handle high-volume, data-intensive user interactions without compromising speed or reliability.
• Conduct in-depth code reviews focused on best practices, scalability, and security, providing clear, actionable feedback to elevate the overall quality of the team's output.
• Author comprehensive technical documentation and test results, ensuring that all implementation details are recorded for future maintenance and audit purposes.
• Deploy user-facing interfaces to production environments using robust CI/CD pipelines, with a constant focus on maintaining zero-downtime releases and rollback strategies.
• Champion the adoption of standardized front end workflows, tooling, and architectural patterns to reduce technical debt and improve long-term maintainability.
• Collaborate closely with analytics teams to instrument and refine data-driven user journeys, validating hypotheses and iterating based on empirical evidence.
• Assume ownership of sprint planning sessions and technical decision-making processes, guiding the team toward optimal solutions for complex user experience challenges.
• Contribute to full-stack initiatives as needed, bridging the gap between frontend components and backend services, database interactions, and deployment infrastructure.
• Ensure all delivered solutions comply with federal accessibility regulations (WCAG) and are rigorously tested across multiple browsers and devices.

Requirements

• Must hold an active TS/SCI security clearance with Polygraph eligibility suitable for accessing classified defense information on this customer site.
• Must possess a minimum of twelve years of cumulative software development experience within programs and contracts that exhibit comparable scope, type, and complexity to this mission.
• Must hold a Bachelor of Science degree in Computer Science, Engineering, or a closely related technical field from an accredited university; alternatively, a combination of four additional years of progressive software experience may be substituted for the degree requirement.
• Must demonstrate seven years of specialized experience in software database interactions and repository interface development, including data modeling and query optimization.
• Must have a proven track record of leadership or mentorship within software development teams, guiding peers through technical challenges and code quality improvements.
• Must exhibit advanced proficiency in modern front end frameworks and core web technologies, including deep knowledge of HTML, CSS, and JavaScript/TypeScript ecosystems.
• Must possess full-stack development capabilities, including competence in backend languages, RESTful API design, and integration methodologies.
• Must have an expert understanding of state management patterns, component-based architecture, and responsive design principles to build adaptable user interfaces.
• Must be highly experienced with version control systems such as Git, CI/CD pipeline construction and maintenance, and at least one major cloud platform like AWS, Azure, or GovCloud.
• Must have extensive experience working in close collaboration with UX designers and systems engineers to implement accessible, user-centric interfaces that meet stringent government standards.
• Must have a history of working within tiered architectural systems and adhering to the strict constraints and regulatory requirements of the government sector.
• Must be capable of obtaining and maintaining the necessary security clearances and public trust adjudications as required for this sensitive engagement.
• Must have a demonstrated ability to write clean, testable code and debug complex issues in a distributed team environment under tight deadlines.

Nice to have

• Prior experience with CODEX products and government mission-specific workflows is highly valued and provides significant advantage.
• Familiarity with related defense sector technologies and compliance frameworks enhances the candidacy profile.

Practical notes

This engagement requires the successful candidate to be physically present in Annapolis Junction, Maryland, United States. Travel requirements are not applicable for this role. This position is contingent upon the successful completion of security clearance adjudication. Compensation details are provided in the key facts section above.