Senior UI Engineer

Mantech seeks a motivated, career-driven, and customer-focused Sr. UI Engineer to join our team in Annapolis Junction MD .

This position will play a key part in building secure, scalable, and mission-enabling applications that support enterprise infrastructure capabilities for a global workforce. This role requires hands-on expertise in both front-end and back-end development, as well as knowledge of infrastructure and DevOps tools in a secure enterprise environment.

Responsibilities include, but are not limited to :

• Act as a senior technical consultant delivering expert guidance on full-stack technologies and modern development practices
• Design and develop responsive user interfaces and rich browser applications using modern UI frameworks and design patterns
• Prototype, test, and iterate UI / UX solutions based on user research, journey mapping, and usability principles
• Build scalable backend services and APIs using Java and Spring Boot
• Support containerized deployments using Docker, and manage builds with Maven
• Implement and manage GitOps pipelines with Flux and Kustomize for Kubernetes-based environments
• Integrate services using REST APIs and manage infrastructure using Helm, Kudectl, and Rancher
• Leverage tools such as Git / GitLab, Jira, and Confluence for agile collaboration and tracking
• Develop in Linux environments using scripting languages like Python and tools like IntelliJ IDEA

Minimum Qualifications :

Preferred Qualifications :

Clearance Requirements :

Physical Requirements :