Cloud and Application Infrastructure Systems Engineer

Mid-Senior Level | Full-time Information Technology/Computing | Livermore, CA | 09/14/2026Reference #: REF8825KJob Code: SES.3 Science & Engineering MTS 3Organization: ComputingPosition Type: Career IndefiniteSecurity Clearance: Anticipated DOE Q clearance (requires U.S. citizenship and a federal background investigation)Drug Test: Required for external applicant(s) selected for this position (includes testing for use of marijuana)Medical Exam: Not applicable Company DescriptionJoin us and make YOUR mark on the World!Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability. Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact.Job DescriptionWe have an opening for a Cloud and Application Infrastructure Systems Engineer. You will architect, implement, and administer the cloud and application infrastructure required to support enterprise applications across the Laboratory’s business services and programmatic missions. This position is in the Enterprise Infrastructure Services (EIS) Division in the Computing Directorate, supporting the LivIT Program.This position offers a hybrid schedule, blending in-person and virtual presence. You will have the flexibility to work from home one or more days per week.You willArchitect and implement highly available application infrastructures required to support enterprise IT service delivery.Leverage systems programming expertise to automate and manage service orchestration, monitoring, configuration management, security, and patch management of application infrastructures and services.Collaborate with customers, IT managers, developers, team members, systems administrators, database administrators, and security administrators to jointly develop highly available application infrastructures & services that meet business & programmatic needs.Manage systems architecture throughout their systems development lifecycles, including risk analysis, capacity planning, highly available systems architecture and design, development, quality assurance, documentation, standards enforcement, implementations and upgrades, security compliance & vulnerability remediation, and performance monitoring.Operationally support application infrastructure technologies (For Example: Java Play, Oracle WebLogic, Apache, Tomcat, IIS, Gitlab, Atlassian, Terraform, Ansible, load balancers, API gateways, Docker, or Kubernetes/AWS EKS), and various enterprise commercial off the shelf (COTs) stacks.Provide superior problem remediation support within the application tier environments in support of negotiated Service Level Agreements (SLA’s).Support the transition of our existing virtualized application infrastructures into containerized services to help drive configuration standardization & agility, CI/CD automation & orchestration, and security enhancement objectives.Provide solutions to complex problems that require in-depth analysis of tangible and intangible factors and the creative use of established and/or innovative methods in architecting and designing application infrastructures and services.Perform other duties as assigned.QualificationsAbility to obtain and maintain a US DOE Q-level security clearance which requires U.S. Citizenship. Bachelor's degree in Computer Science, Software Engineering, Management Information Systems, or related field, or the equivalent combination of education and related experience.Significant experience implementing and managing application and cloud service infrastructure; including monitoring, operational support, security, and lifecycle management.Advanced experience with systems programming and/or automation tools to create, configure, monitor, and automate the management of complex application infrastructures required to maintain the requisite availability and security posture of deployed services.Significant experience collaborating with customers, IT managers, developers, database administrators, systems administrators, and security administrators to jointly create application infrastructure services that meet business requirements.Advanced experience with public and/or private cloud services, and UNIX and/or Windows O/S administration, security, and performance tuning.Advanced experience managing application infrastructure technologies, such as Java Play, Oracle WebLogic, Apache, Tomcat, IIS, load balancers, API gateways, DockerEE/AWS EKS, or various enterprise commercial off the shelf (COTs) stacks.Significant experience architecting and managing application and cloud service infrastructures; including implementation, monitoring, operational support, security, and lifecycle management.Advanced communication, facilitation, and collaboration skills necessary to effectively present, explain, and advise senior management and/or external sponsors.Qualifications We DesireExperience with observability platforms such as Datadog, Dynatrace, AppDynamics, etc.Experience leveraging Splunk or equivalent SIEM environment to operationally manage application infrastructure services.Experience working in a compliance-driven and secure environment, as well as project management experience with large, enterprise COTs application implementations.Pay Range$175,530 - $222,564 Annually This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage. An employee’s position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs.Additional Information#LI-HybridPosition InformationThis is a Career Indefinite position, open to Lab employees and external candidates.Why Lawrence Livermore National Laboratory?Included in 2026 Best Places to Work by Glassdoor!Flexible Benefits Package401(k)Relocation AssistanceEducation Reimbursement ProgramFlexible schedules (*depending on project needs)Our values - visit Security ClearanceThis position requires a Department of Energy (DOE) Q-level clearance. If you are selected, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing. Q-level clearance requires U.S. citizenship. Pre-Employment Drug TestExternal applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor.Wireless and Medical DevicesPer the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. 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