Leidos has an exciting opportunity for a Principal Software Engineer in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary As a Software Engineer on this program, you will have the opportunity to build strong systems, software, and cloud environments while providing operations and maintenance for critical systems. This role will provide technical expertise in the design, development, implementation and testing of customer tools and applications. Based in a DevOps framework, this role participates in and/or directs major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. Primary Responsibilities: Participates in and/or directs software programming initiatives using Java, JavaScript, Python, SpringBoot, and Hibernate. Develops software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologies Develop, prototype and deploy solutions within Commercial Cloud Solutions leveraging infrastructure platform services Coordinate closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases Supp
DevOps Platform Engineer/Linux Systems Administrator
Role overview
Job description
Leidos is looking for our next TS/SCI-cleared DevOps Platform Engineer/Linux Systems Administrator to join a high-energy team deploying and maintaining common application-runtime capabilities in support of the DIA-NDOC (National Digital Exploitation OSINT Center) DOMEX Technology Platform (DTP). This role is part of a 10-year program supporting the DOMEX Data Discovery Platform (D3P) Modernization effort, where you’ll contribute to mission-critical capabilities alongside a collaborative, innovative, and growth-oriented team.
While the majority of work is performed on-site at our customer location in Bethesda, MD, we offer a flexible schedule and occasional opportunities for remote work.
As a Platform Engineer, you’ll operate and maintain the organization’s Kubernetes-based application platform and shared runtime services, including Elastic and Redis by performing platform configuration, monitoring, troubleshooting, security hardening, capacity management, version upgrades, and automation to provide reliable, secure, and scalable platform services. You’ll also support the implementation of automation, continuous integration and delivery, and DevOps best practices across cross-functional engineer teams. In this fast-paced environment, you’ll collaborate closely with systems engineering, architecture, development, security, operations, and integration teams.
You will work with a multidisciplinary group of developers, integrators, and system administrators to:
- Deploy, troubleshoot, monitor, and maintain the platform for a production big-data pipeline built on Kubernetes, Elasticsearch, and Kafka .
- Administer and maintain Linux-based applications, including installation, configuration, patching, upgrades, performance monitoring, troubleshooting, and system hardening.
- Integrate with the underlying physical and virtual infrastructure, ensuring system availability, reliability, security, and performance.
- Design and support scalable, redundant application infrastructure across physical and virtual environments.
- Contribute technical input to engineering documentation, diagrams, and models.
- Participate in Agile release planning, scrums, design sessions, bug triage, and related team activities.
To be successful in this role you need the following (required qualifications):
You’re enthusiastic, collaborative, and comfortable working with teammates across a range of technical backgrounds. You also meet the following qualifications:
- Bachelor’s degree in Engineering, Computer Sciences, Systems Engineering, or related field (or equivalent experience) with 4+ years of relevant experience; 2+ years with a Master’s
- Active TS/SCI clearance and ability to obtain/maintain a TS/SCI with CI Polygraph
- Possess at least one DoD 8140.03-M IAT Level II or higher certification, e.g., CySA+, Security+CE, etc.
- Ability to obtain Privileged User Account (PUA) certification per DoD 8140 policy
- Hands-on experience with Kubernetes administration and operations
- Helm or comparable Kubernetes package/configuration-management tools
- Troubleshooting pod failures, networking issues, image pulls, scheduling constraints, and application connectivity
- Experience with Linux command-line administration and troubleshooting, including processes, filesystems, networking, permissions, logs, certificates, and system resource analysis
- Experience supporting or administering at least one shared data or application platform service, such as Elastic, Redis, message queues, API gateways, or similar distributed services
- Familiarity with infrastructure and platform automation tools, such as Terraform, Ansible, Helm, Bash, Python, or equivalent
- Working knowledge of platform security practices
- Experience with monitoring and observability tools and practices
- Ability to create and maintain clear technical documentation
- Strong troubleshooting, analytical, and communication skills
You will wow us even more if you have some of these skills:
- Knowledge of Agile methodologies
- Development experience (Bash, PowerShell, SALT, Python, Groovy, Java, etc.)
- Familiarity with:
- Kafka or other messaging systems
- GPU-based Kubernetes
- SALT for deployment automation
- Helm/Helmfile
- CI/CD tools such as Gitlab, Nexus, ArgoCD
Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world's toughest challenges in the defense, intelligence, homeland security, civil, and health markets. The company's 32,000 employees support vital missions for government and commercial customers. For more information, visit www.Leidos.com.
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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:
October 16, 2026For 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.
Pay Range:
Pay Range $87,100.00 - $157,450.00The 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.
What they are looking for
Skills & requirements
Hiring company
Leidos
Leidos, a Fortune 500 digital and mission innovator, delivers solutions at the intersection of national security, health, and critical infrastructure. With a global workforce of approximately 47,000, we are carrying out our NorthStar 2030 strategy focusing on five growth engines where demand is expanding and our expertise sets us apart: space and maritime, energy infrastructure, digital modernization and cyber, mission software, and managed health.
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