The Defense Sector at Leidos has an opening for a Senior Cloud Cybersecurity Infrastructure Engineer supporting an Air Force & Navy Mission Planning program. This position will help manage underlying infrastructure for a cloud-based Next-generation Continuous Integration/Continuous Deployment (CI/CD) pipeline supporting 40+ developer teams across cutting-edge technology stacks. You will be part of a team of engineers working in a DevSecOps environment, enabling rapid software development solutions while providing guidance on how to improve Air Force & Navy Mission Planning software.
Primary Responsibilities:
The successful candidate will have a passion for maintaining the cybersecurity posture of complex IT systems, and will be eager to learn new technologies and enjoy overcoming the challenges of the unknown. You will work in a peer-to-peer environment placing a high value on collaboration and team success. Day-to-day responsibilities will include implementation, maintenance, and troubleshooting of a complex and diverse cloud environment, to include:
- Providing Subject Matter Expertise for cloud Information Assurance on a variety of implementations.
- Securing high-availability systems via industry/DOD standards and best practices.
- Configuring & securing underlying Azure/AWS cloud resources for build, release & deployment pipelines.
- Supporting an enterprise CI/CD environment with multiple servers, operating systems and applications.
- Deploying, reviewing, patching & testing systems for adherence to build & security requirements.
- Resolving tickets and problem reports on specific technologies and hardware/software components, including COTS/GOTS products, from the system level to individual hardware/software components.
- Building and maintaining scripts for automation of tasks and server maintenance.
- Creating and maintaining accurate maintenance documentation for systems .
Basic Qualifications:
- U.S. Citizenship with an active Secret or higher clearance.
- Bachelor’s degree with 8+ years of experience or a Master’s degree with 6+ years of experience. Additional experience may be considered in lieu of a degree.
- Ability to obtain a CompTIA Security+ certification or minimum equivalent to meet DoD 8570 Compliance.
- 4+ years of Windows & Linux sys administration with 2+ years in an Azure/AWS cloud environment.
- Experience applying/debugging STIG settings/conflicts in Windows/Linux servers and hosted apps.
- Experience interpreting scanning tool outputs (Nessus, SCAP, Evaluate STIG, etc.) and remediating findings.
- Experience with system troubleshooting tools like top, iostat, vmstat, netstat, lvm, fdisk.
- Strong understanding of networking concepts such as OSI Model, LAN/WAN, IPv4/IPv6, subnetting, VLANs, edge services & point-to-point VPN setup within cloud environments.
- Experience working with identity management & authentication tools such as LDAP, SAML, and PKI.
Preferred Qualifications:
- Hands-on experience with Configuration Management tools such as Ansible, Chef, or Puppet.
- Hands-on experience with Trellix/McAfee ePO and product suite.
- Hands-on configuration and experience with SIEM tools (e.g., Splunk, Azure Log Analytics, QRadar, LogRhythm).
- Hands-on experience with Microsoft Active Directory (i.e., OU creation, Schema Changes, Security Groups).
- Hands-on experience with Microsoft Group Policy (i.e., Creating GPOs, GPO inheritance, Security Filtering).
- Virtualization experience (VMware vCenter, ESXi, KVM, Hyper-V).
- Experience with Docker container technologies and Docker container deployment technologies, such as Terraform, Kubernetes, OpenShift, Helm, EKS, AKS.
- Experience supporting Jenkins pipeline code building and analysis tools.
- Coding and/or scripting experience using Python, Powershell, Bash, or other tools.
- Atlassian Tools Suite experience (Bitbucket, Confluence, JIRA)
- Experience managing web servers such as IIS and Tomcat.
- Familiarity with F5 BIG-IP Authentication and SAML IdP/SP.
- Intermediate knowledge of MS SQL, PostgreSQL, and MySQL.
- Experience in designing and implementing VNet/VLAN ports, protocols and services settings to restrict communications across Cloud-native virtual networking boundaries.
- Experience managing projects and processes to achieve enterprise business improvement objectives.
- Experience hardening API Gateway and API Endpoints.
- Experience with backup and recovery of IT infrastructure.
- Experience as an Information Systems Security Officer or Engineer (ISSO or ISSE).
- Experience managing, interpreting, and updating Plans of Action and Milestones (POA&Ms).
- Experience developing cybersecurity policy related to cloud environments.
- Experience applying STIGs to containers.
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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:June 5, 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.
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.
Skills Required
- U.S. Citizenship with an active Secret or higher clearance.
- Bachelor's degree with 8+ years experience or Master's degree with 6+ years (additional experience may substitute).
- Ability to obtain CompTIA Security+ or equivalent to meet DoD 8570 compliance.
- 4+ years Windows and Linux system administration.
- 2+ years working in an Azure and/or AWS cloud environment.
- Experience applying and debugging STIG settings/conflicts for Windows/Linux servers and hosted applications.
- Experience interpreting scanning tool outputs (Nessus, SCAP, Evaluate STIG) and remediating findings.
- Experience with system troubleshooting tools (top, iostat, vmstat, netstat, lvm, fdisk).
- Strong understanding of networking concepts (OSI Model, LAN/WAN, IPv4/IPv6, subnetting, VLANs, edge services, point-to-point VPN in cloud).
- Experience with identity management and authentication tools (LDAP, SAML, PKI).
- Supporting an enterprise CI/CD environment for multiple servers, OSes, and applications.
- Experience securing high-availability systems per industry/DoD standards and best practices.
- Creating and maintaining maintenance and security documentation for systems.
- Hands-on experience with Configuration Management tools such as Ansible, Chef, or Puppet.
- Hands-on experience with Trellix/McAfee ePO and product suite.
- Hands-on configuration and experience with SIEM tools (Splunk, Azure Log Analytics, QRadar, LogRhythm).
- Hands-on experience with Microsoft Active Directory and Group Policy administration.
- Virtualization experience (VMware vCenter, ESXi, KVM, Hyper-V).
- Experience with Docker and container orchestration/deployment (Terraform, Kubernetes, OpenShift, Helm, EKS, AKS).
- Experience supporting Jenkins pipeline builds and analysis tools.
- Coding/scripting experience (Python, PowerShell, Bash).
- Atlassian Tools Suite experience (Bitbucket, Confluence, JIRA).
- Experience managing web servers such as IIS and Tomcat.
- Familiarity with F5 BIG-IP Authentication and SAML IdP/SP.
- Intermediate knowledge of MS SQL, PostgreSQL, and MySQL.
- Experience designing and implementing VNet/VLAN rules to restrict cloud-native communications.
- Experience hardening API Gateway and API endpoints and applying STIGs to containers.
- Experience with backup and recovery of IT infrastructure and POA&M management.
- Experience as an ISSO or ISSE and developing cloud cybersecurity policy.
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
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. Your most important work is ahead.
