Leidos’ Security Enterprise Solutions (SES) operation is seeking a Systems Test Engineer in Vista, CA to join our cross-functional engineering team using cutting edge technology to develop truly novel solutions that make travel and trade safer, healthier, and more efficient on a global level. As a member of the Leidos Security Enterprise Solutions (SES) team, you will be joining a diverse and dedicated group who are excited about producing industry leading screening technology. Our team produces a comprehensive suite of fully automated and integrated products for aviation, shipping ports, border crossings, and critical infrastructure customers. These systems provide threat detection by screening baggage, cargo, and people at checkpoints around the world.
The Systems Test Engineer will collaborate with Engineering, Project Management, Manufacturing, Training, Field Service and customers throughout the development life cycle, to qualify and sustain Leidos security detection products to associated requirements/objectives at the factory and after field installation. Candidates must have experience working with integrated systems, testing both software and hardware, and ideally be able to function in both Linux and Windows environments. This position will identify opportunities to increase the level of automated testing of the software product, plan and execute strategies to achieve test automation objectives, and evaluate and integrate new testing tools, technologies, and procedures to achieve the organization’s technical objectives. Formal test reporting and documentation generation is required. The duties and responsibilities may change from time to time without notice and include but are not limited to the duties described below.
Primary Responsibilities:
- Coordinate with cross-functional development teams to understand device data flows and interface control documents to effectively develop test approaches and plans to ensure complete and effective end-to-end verification of messages and images from devices and interfaces.
- Develop a wide range of tests and frameworks (integration, performance, regression, etc.) to ensure system software meets and/or exceeds product requirements.
- Install and test software in a systems environment as part of the product qualification process to satisfy customer requirements for deployment to the field.
- Establish test automation objectives with development team and design/execute plans to achieve those objectives.
- Identify regression test candidates for automation and plan automation activities with development team.
- Generate, execute, and document corresponding test plans and results.
- Partner with development team members to identify and debug defects early in the development process.
- Participate in Agile ceremonies, including daily standups, sprint planning, reviews and retrospective meetings.
- Generate documentation packages and follow required configuration management processes to “officially” release software to manufacturing.
- Proactively lead group design discussions pertaining to software/system quality and report project status and issues to management and customers, as required.
- Assist Field Service Engineering in evaluating and troubleshooting installation anomalies to help customers through problem resolution.
- Utilize effective written and verbal communication skills to collaborate with all product line stakeholders.
Basic Qualifications:
- BS Degree in technical discipline with 4+ years of prior relevant experience or MS Degree with 2+ years experience. Additional experience may be considered in lieu of degree.
- Must have the ability to obtain a Public Trust clearance (US citizenship required).
- Extensive experience working with LINUX-based operating systems/applications.
- Experience troubleshooting software/hardware in integrated systems.
- Experience testing with automated unit-testing tools and methodologies.
- Experience creating test cases to qualify defined system requirements.
- Experience with product development process and configuration management applications (Azure DevOps, Jira).
- Excellent verbal, written and interpersonal communication skills.
- Ability to travel to customer sites, as required.
Preferred Qualifications:
- Familiarity with networks and distributed software environments.
- Familiarity with Cloud technologies (AWS, Azure, GCP).
- Familiarity with Containerized applications and orchestration (Kubernetes, Docker).
- Familiarity working with Windows-based operating systems/applications.
- Experience with Agile/Scrum/Kanban methodologies.
- Some lifting required (less than 20 pounds typically).
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:December 4, 2025For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
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What We Do
We Are Leidos
For 50 years we have been tackling some of the biggest problems that face our nation and our world.
OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
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