Amentum

Senior Software Developer

Amentum
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21 hours ago
Arlington, VA, USASenior

Base Salary

$200k - $220k/yr

Responsibilities

  • Lead software development projects from requirements analysis through deployment and maintenance.
  • Design and develop full-stack software solutions using Python, NodeJS, Angular, JavaScript, C#, SQL Server, Windows Server, and Linux.
  • Migrate and modernize legacy applications and existing systems to cloud environments.
  • Establish CI/CD pipelines and support container orchestration environments such as EKS and Kubernetes.
  • Monitor, troubleshoot, and enhance system operations using Splunk, Grafana, and Prometheus.
  • Produce technical documentation, system designs, Interface Control Documents, operational procedures, and UML models.
  • Reverse engineer legacy codebases and support secure communications systems in compliance with operational and security standards.
  • Research, prototype, and recommend improvements to systems and architectures.
  • Troubleshoot complex software, performance, infrastructure, and operational issues, including on-call support for critical systems.
  • Communicate with clients, manage project deliverables, and facilitate process working groups and business strategy development.
  • Follow applicable safety, quality, environmental, operational, and customer contract requirements.

Requirements

  • Over 8 years of hands-on software development experience, with a stated minimum of 10 years.
  • Bachelor’s degree in Computer Science, Design, or a related field, or equivalent experience.
  • TS/SCI clearance with Poly required.
  • Proficiency in at least two of Python, NodeJS, Angular, JavaScript, C#, and SQL.
  • Experience with cloud technologies, secure systems engineering, systems integration, and reverse engineering.
  • Experience with EKS, Kubernetes, or other container orchestration software.
  • Experience with Jira, Confluence, Splunk, and diagramming applications.
  • Strong debugging, performance optimization, and DevOps skills.
  • Background in on-call support and operational monitoring of critical systems.
  • Preferred qualifications include AWS experience, design systems and component libraries experience, strong technical writing, multidisciplinary collaboration, high-availability systems, and secure communications.

Benefits

  • Health, dental, and vision insurance.
  • Paid time off and holidays.
  • Retirement benefits including 401(k) matching.
  • Educational reimbursement, parental leave, employee stock purchase plan, tax-saving options, disability and life insurance, and pet insurance.
  • Benefits may vary by employment type, location, collective bargaining agreement, or other applicable employment contract.
  • Full-time posting opened October 19, 2026 and remains open until filled.

Tech Stack

AngularAWSC#GrafanaJavaScriptKubernetesLinuxMicrosoft SQL ServerPrometheusPythonSplunk

Categories

Amentum

About Amentum

10,000+ employees

Amentum provides engineering, operations and maintenance, logistics, and mission support services to U.S. federal agencies and allied governments, including defense and energy programs. Its business centers on large, long-term government contracts spanning defense, space, nuclear cleanup, and infrastructure, with program management and technical services at the core. Headquartered in Chantilly, Virginia, it was formed in 2020 from the spinoff of AECOM’s Management Services division.

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