Senior UI Engineer Job at ManTech, Annapolis Junction, MD

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  • ManTech
  • Annapolis Junction, MD

Job Description

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:

  • Bachelor’s degree with 12+ years of relevant experience OR associate’s degree with 15 years of relevant experience OR high school diploma/GED with 20 years of relevant experience
  • Experience with Java, Spring Boot, and Maven for backend development
  • Experience with React, TypeScript, Material UI (MUI), Cypress, Vitest, or Vite for UI development
  • Experience with Docker, RESTful APIs, and GitOps workflows
  • Experience with maintaining and modernizing AWS platforms
  • Strong scripting skills in Python and familiarity with Linux-based development
  • IAT I certification (DoD 8140 required within 60 days of starting employment. Acceptable certifications include A+ CE/CCNA-Security/CND/Network+ CE /CySA+/GICSP/GSEC/Security+ CE/CND/SSCP)

     

Preferred Qualifications:

  • Experience with MongoDB
  • Experience with Mattemost/HUSTLE
  • Experience with Kubernetes, Helm, Rancher, Flux, and Kudectl in secure DevOps environments
  • Hands-on experience with JIRA, Confluence, IDEA IDE, and CI/CD pipeline tools such as Git/GitLab

     

Clearance Requirements:

  • Must have a current/active TS/SCI with Polygraph

     

Physical Requirements:

  • Must be able to remain in a stationary position 50% of the time
  • Occasionally moves about inside the office to access file cabinets, office machinery, etc.
  • Frequently communicates with co-workers, management, and customers via email, phone, and virtual tools, which may include delivering presentations. Must be able to exchange accurate information in these situations

Job Tags

Work at office,

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