Senior Software Engineer & Tech SME for Mission Apps

Leidos; Gaithersburg (MD); On-site; USD 131,000 - 237,000; Full time

Job summary

Leidos in Gaithersburg, MD is seeking a Software Engineer SME to lead mission-critical applications across the full software lifecycle, designing, developing, integrating, testing, deploying, and maintaining secure, scalable software for the Chinook program. This role requires active TS/SCI clearance and a hands-on leadership style.

You will mentor junior engineers, promote sound engineering practices, collaborate with government and contractor stakeholders, and drive DevSecOps, CI/CD, and

Qualifications

• Bachelor's degree in Computer Science or Software Engineering with extensive relevant experience, or Master’s with substantial experience.
• Strong experience with Python, Java, JavaScript and Go in multi-tier web apps.
• Proficiency in RESTful services, microservices, and modern web front-ends.
• Experience with AWS GovCloud, multi-cloud patterns, and IaC tooling (Terraform, CloudFormation).
• Hands-on with containerization (Docker/Kubernetes) and DevSecOps toolchain (GitLab/Jenkins, SonarQube).

Responsibilities

• Serve as senior SME and technical advisor for Chinook mission applications.
• Design, develop, integrate, test, deploy, and maintain modern web apps and backend services.
• Develop scalable, secure software across front-end and back-end tiers.
• Mentor engineers and promote consistent engineering practices.
• Lead CI/CD, DevSecOps, and containerized/cloud environments as applicable.

Skills

Python

Java

JavaScript

Go

REST APIs

Docker

Kubernetes

AWS GovCloud

Terraform

CI/CD

Education

B.S. in CS/Software Eng

Master’s degree

Tools

Git

Jira

Confluence

CloudFormation

Terraform

Nexus

Keycloak

Vault

Jenkins

SonarQube

Job description

Leidos in Gaithersburg, MD is seeking a Software Engineer SME to lead mission-critical applications across the full software lifecycle, designing, developing, integrating, testing, deploying, and maintaining secure, scalable software for the Chinook program. This role requires active TS/SCI clearance and a hands-on leadership style.

You will mentor junior engineers, promote sound engineering practices, collaborate with government and contractor stakeholders, and drive DevSecOps, CI/CD, and