Lead Test Engineer

Leidos is seeking a Test Engineer to join the Air Traffic Business Area within the Homeland Sector, supporting the development of the Leidos Common Automation Platform (L-CAP). L-CAP is a mission-critical, future-ready automation platform built on a hybrid cloud data mesh architecture, enabling next-generation air traffic management capabilities. We are building with an AI-first engineering mindset, embracing emerging AI capabilities and modern development practices to accelerate delivery, improve software quality, and continuously evolve how we design and build mission-critical systems. This role operates within a SAFe/Agile framework as part of an Agile Release Train (ART) delivering iterative value across the program. This position supports government programs and requires the ability to obtain and maintain a favorable Public Trust investigation.

This is a hybrid position requiring 3 days onsite and 2 days working from home, if you are located within a commutable distance (Less than 1 hour's drive one-way during normal traffic) from Gaithersburg, MD; Eagan, MN; or Egg Harbor Township, NJ. However, if you do not reside within a commutable distance, you may be considered for a 100% remote role.

What You’ll Do

• Design and implement test automation frameworks for microservices-based platform components

• Build and maintain reusable test libraries and utilities for the L-CAP test infrastructure

• Integrate automated tests into CI/CD pipelines ensuring continuous quality gates

• Conduct performance testing to validate system behavior under load and stress conditions

• Execute integration testing across platform services, APIs, and external system interfaces

• Develop test plans and strategies aligned with sprint and PI objectives

• Analyze defect patterns and test metrics to identify quality trends and improvement opportunities

• Collaborate with development and systems engineering teams on testability and quality requirements

• Support test environment configuration and test data management activities

• Mentor junior test engineers on automation practices and testing methodologies

• Design and execute test scenarios based on operational ATC workflows ensuring modernized services replicate legacy system behavior

• Develop distributed service validation frameworks verifying inter-service communication, data flow, and performance under operational conditions

• Implement data-driven verification approaches supporting modernization of legacy automation functions

• Embrace an AI-first engineering culture by actively adopting AI-assisted development tools, automation, and modern engineering practices that improve productivity, code quality, and delivery velocity.