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Senior Software Engineer

Job in Fairfax, Fairfax County, Virginia, 22032, USA
Listing for: ECS
Full Time position
Listed on 2026-06-03
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 125000 - 150000 USD Yearly USD 125000.00 150000.00 YEAR
Job Description & How to Apply Below

Overview

Senior Software Engineer to work in the National Capital Region covering the Pentagon, Falls Church, and Fairfax. This position is contingent upon contract award.

The War Data Platform (WDP) is a key initiative within the DoW AI-First strategy and supports operational war fighting data across Unclassified, Secret, and Top Secret environments. It enables collaboration between Combatant Commands, Joint Staff directorates, Senior Executive Service leaders, and operational analysts.

Responsibilities
  • Executes complex software engineering activities by transforming system design artifacts, user requirements, and mission workflows into scalable software capabilities supporting WDP Core Integration operations on NIPRNet, SIPRNet, and JWICS.
  • Develops advanced application features, data-processing logic, and automation modules using Python, Java, Go, JavaScript, Terraform, Docker, and Kubernetes to expand mission analytics, platform services, and customer-facing tools.
  • Leads complex feature development, conducts in-depth code reviews, and drives high-volume story-point delivery across sprint cycles.
  • Owns the application architecture, resolves design conflicts, defines the security-by-design baseline, and establishes immutable infrastructure patterns through reusable Terraform and Ansible modules.
  • Reviews all code for security and compliance alignment and architects end-to-end pipeline workflows with clearly defined quality gates.
  • Creates baseline STIG and container-hardening profiles, automates compliance reporting, and leads remediation strategies across mission applications.
  • Designs Infrastructure-as-Code and Configuration-as-Code patterns that enforce environmental consistency, reduce configuration drift, and support repeatable provisioning across the full software lifecycle.
  • Integrates automated testing components into CI/CD pipelines to support unit testing, regression analysis, compliance validation, performance testing, and mission-aligned acceptance checks.
  • Designs observability stacks, leads incident post-mortems, and authors high-level architecture and compliance documentation.
  • Evaluates emerging technologies and drives adoption strategies that strengthen mission resilience.
  • Collaborates with platform engineering, cybersecurity operations, configuration-management teams, and Dev Sec Ops  pipeline engineers to resolve integration challenges and enhance reliability across mission applications.
  • Delivers source-code updates, technical documentation, performance summaries, and enhancement recommendations that strengthen resilience and operational effectiveness across the WDP Core Integration ecosystem.
  • Performs other duties as assigned.
Required Skills
  • Current Secret security clearance with the ability to obtain and maintain a Top Secret (TS) security clearance with Sensitive Compartmented Information (SCI).
  • 10-12 years of progressively responsible experience in software engineering, with demonstrated expertise designing, developing, and delivering mission-critical applications in enterprise or multi-enclave environments.
  • Expert proficiency in two or more modern programming or scripting languages such as Python, Java, Go, or JavaScript, combined with hands-on experience using containerization and orchestration tools including Docker and Kubernetes.
  • Demonstrated experience designing and managing Dev Sec Ops  CI/CD pipelines, including Infrastructure-as-Code using Terraform and Ansible, automated testing integration, STIG compliance, and container-hardening practices in classified or government cloud environments.
  • Experience developing and deploying software in DoW-compliant cloud environments such as AWS Gov Cloud or AWS Secret Region, including familiarity with cloud-native services, observability tooling, and security and accreditation processes applicable to multi-enclave platforms.
  • Strong problem-solving and decision-making capabilities, with a proven ability to weigh the relative costs and benefits of potential actions and identify the most appropriate solution.
  • Highly developed interpersonal and oral/written communication skills, with the ability to effectively and professionally interact with a diverse…
Position Requirements
10+ Years work experience
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