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Software Engineer SME

Leidos

$126,100 - $227,950
Nov 7, 2025
Chantilly, VA, US
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Leidos National Security Sector is seeking an experienced Software Engineer Subject Matter Expert (SME) for the Chinook Program to lead design and development efforts for scalable applications and services that power GEOINT production, data services, and mission user interfaces, supporting defense and intel customers in an evolving security landscape.

Requirements

  • Web: HTML, CSS, JSON, Ajax, and REST APIs
  • Object-oriented Programming: Python, Java, and JavaScript
  • Advanced Programming: Go
  • Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte.
  • Cloud Development: AWS, Azure, or similar cloud platforms
  • Relational Database: MySQL, PostgreSQL, or SQL Server
  • Version Control System: Git

Responsibilities

  • Serve as the lead software engineer and technical advisor for mission applications under the Chinook program.
  • Design, build, and maintain enterprise-grade microservices and APIs that support GEOINT data workflows.
  • Lead agile development sprints, provide guidance on architectural decisions, and enforce DevSecOps best practices.
  • Build and optimize containerized applications for deployment in classified AWS (C2S/GovCloud) or IC ITE environments.
  • Collaborate with customer stakeholders, analysts, and development teams to translate mission needs into software solutions.
  • Ensure solutions comply with customer and IC-wide cybersecurity, data governance, and open standards (OGC, NSG, etc.).
  • Mentor junior engineers, provide code reviews, and contribute to technical roadmap and documentation.

Other

  • Must have a Top Secret with SCI eligibility and able to obtain a Polygraph.
  • US citizenship is required per contract.
  • Bachelor's degree in Computer Science, Software Engineering, or related field and 12-15 years of prior relevant experience or Master’s with 10-13 years of prior relevant experience.
  • We’re not looking for perfectly polished resumes or perfect fits. We’re looking for people who break limits, ask hard questions, and don’t wait to be told what’s next.
  • All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law.