Description Senior Infrastructure EngineerLeidos isseeking an experienced Senior Infrastructure Engineer to lead ateam in supporting and maintaining an IT service management tool(ServiceNow) for a large organisation. This role predominantlyrequires advanced expertise in Linux administration, automation,and system integration, some basic Windows experience, along withstrong team leadership and mentorship skills. The ideal candidatewill be responsible for ensuring system stability, security, andperformance, while guiding and supporting their team in optimizingLinux environments and infrastructure. This role requires a dailyin-office presence.Everything we do is built on a commitment to dothe right thing for our customers, our people and our community.Our mission and our values guide the way we do business. Thefoundation of our Leidos culture is our Values, Beliefs andExpectations by which we select, recognise and reward employees.They create the environment that drives us toward ourmission.Passionate about customer success by being determined tounderstand and respond to our customers’ needs as if they were ourown. United as a team, we are bound together by our conviction thatethics and integrity is core to how we operate.Leidos is a globalscience and technology solutions leader working to solve theworld’s toughest challenges in the defence, intelligence, homelandsecurity, civil, and health markets. The company’s 33,000 employeessupport vital missions for government and commercial customers.Candidate must be eligible to undergo security clearance (DV).KeyResponsibilities:System Administration & ConfigurationManagement: Manage and maintain Red Hat Enterprise Linux (RHEL)environments running application and database servers, ensuringoptimal performance and stability. Manage and maintain limitedWindows Servers running ITSM agents. Troubleshooting &Root Cause Analysis: Identify, analyse, and resolve complex systemissues.Incident & Problem Management: Implement robust incidentresponse and problem-resolution strategies.Performance Monitoring& Optimization: Utilize to proactively enhance systemperformance.Security & Compliance: Ensure adherence to industrybest practices, including patch management, vulnerabilityassessments, and security hardening (e.g., CIS benchmarks, STIGcompliance).Automation & Scripting: Develop automation scriptsusing Bash, Python, or Ansible to streamline system operations anddeployments.Documentation & Knowledge Sharing: Maintaintechnical documentation, including system build guides, upgradeprocedures, and troubleshooting manuals.System Upgrades &Project Support: Lead system upgrades, migrations, and integrationprojects, ensuring seamless execution.Logging & MonitoringIntegration: Configure and manage RHEL logs for ingestion into aSIEM (Security information and event management) ; integrate Linuxsystems with SCOM (with assistance from the existing SCOMInfrastructure Engineer) for health monitoring.Antivirus &Endpoint Security: Ensure AV integration and health monitoringwithin Linux and Windows Server environments.InfrastructureIntegration: Collaborate closely with development, security, andoperations teams to optimize Linux systems within the broader ITecosystem.Testing & Validation Support: Oversee execution oftest scripts for platform validation, supporting testers andtroubleshooting potential issues.You will have:Proven experience asa Senior Linux Engineer, System Administrator, or similarrole.Demonstrated leadership experience, with the ability to mentorand manage a technical team.Expertise in Red Hat Enterprise Linux(RHEL) administration, troubleshooting, and performancetuning.Experience with configuration management tools (Ansible,Puppet, or Chef).Strong scripting ability in Bash, Python, orPerl.Deep understanding of networking protocols (TCP/IP, DNS, DHCP,NTP, etc.).Familiarity with IT Service Management (ITSM) tools,preferably ServiceNow.Familiarity with Agile/Scrummethodologies.Knowledge of ITIL/ITSM principles and bestpractices.Excellent analytical and problem-solvingskills.Exceptional communication and interpersonal skills, with theability to collaborate effectively across teams.AdditionalSkills:Familiarity with security frameworks such as CIS benchmarksand ISO 27001.Experience with log management and SIEM solutions(ArcSight, Splunk, ELK Stack).Hands-on experience with Linux-basedhigh availability and disaster recovery solutions.Familiarity withvirtualization technologies.Experience with automated patchmanagement in Linux environments.ServiceNow environment experienceis desirable.Experience transitioning of systems to service.WHAT DOWE DO FOR YOU?At Leidos we are PASSIONATE about customer success,UNITED as a team and INSPIRED to make a difference. We offermeaningful and engaging careers, a collaborative culture, andsupport for your career goals, all while nurturing a healthywork-life balance.We provide an employment package that attracts,develops and retains only the best in talent. Our reward schemeincludes:• Contributory Pension Scheme• Private Medical Insurance•33 days Annual Leave (including public and privilege holidays)•Access to Flexible benefits (including life assurance, healthschemes, gym memberships, annual buy and sell holidays and a cycleto work scheme)• Dynamic Working Commitment toDiversity:We welcome applications from every part of the communityand are committed to a truly diverse and inclusive culture. Wefoster a sense of belonging, welcoming all perspectives andcontributions, and providing equal access to opportunities andresources for everyone. If you have a disability or need anyreasonable adjustments during the application and selection stages,please let us know, and we will respond in a way that best fitsyour needs. Who We Are:Leidos UK & EUROPE – we workto makethe world safer, healthier, and moreefficient through technology, engineeringand science.Leidos is a growing company deliveringinnovative technology and solutions focused on safeguardingcritical capabilities and transformation in frontline services, ourwork in the United Kingdom includes addressing some of the mostcomplex problems in defence, healthcare, government, safety andsecurity, and transportation.What Makes UsDifferent:Purpose: you can use your passion and abilities atLeidos to keep the people you care about safe. We are at theforefront of machine learning, AI, cyber security and solutions.Using your skills in the technology frontline by helping to build asafer world. Youcan inspire change.Collaboration: having flexibility todo your job is one of our core benefits, enabling you to becomepart of our extraordinary team. We have been empowering our peopleto work flexibly for years. Whether you work from home, the officeor on customer sites, we will give you the digital tools and theflexibility to work smarter and align your needsand ours.People: Leidos empowers people fromevery background to be themselves and gives you the tools to learnnew skills by enabling growth whilst developing. Webelieve that extraordinary people need opportunities to grow,to be inspired and to inspire others. At Leidos, weinvest in technical academies, career rotations and a careerdevelopment plan that enhance your future.Original Posting:For U.S.Positions: While subject to change based on business needs, Leidosreasonably anticipates that this job requisition will remain openfor at least 3 days with an anticipated close date of no earlierthan 3 days after the original posting date as listed above.PayRange:The Leidos pay range for this job level is a generalguideline only and not a guarantee of compensation or salary.Additional factors considered in extending an offer include (butare not limited to) responsibilities of the job, education,experience, knowledge, skills, and abilities, as well as internalequity, alignment with market data, applicable bargaining agreement(if any), or other law.
