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.

• 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.

• Bachelor’s degree in Computer Science, Software Engineering, or related discipline with 3+ years of experience, or Master’s degree with 2+ years (additional experience, education and training may be considered in lieu of degree)

• Experience with test automation frameworks (Selenium, JUnit, pytest, or equivalent) and Java or JavaScript test development

• Experience integrating automated testing into CI/CD pipelines using Jenkins, Git Lab CI, Git Hub Actions, or similar tools

• Experience with performance, integration, and API testing for distributed systems using tools such as JMeter or Gatling

• Knowledge of distributed service testing, including service virtualization, contract testing, chaos engineering, and data-driven test automation

• Experience with operational scenario-based testing, behavioral validation, root cause analysis, and defect investigation

• Familiarity with Agile/SAFe testing, quality engineering principles, test management, and defect tracking tools

• Ability to obtain and maintain a Public Trust

• U.S. citizenship required

• Successful…