System Engineer, Level 3

What You Will DoAs a Systems Engineer Level 3 at Independent Software, you will support the administration, engineering, security, and operational sustainment of mission‑critical Linux infrastructure across secure enterprise and real‑time operational environments. This role is heavily focused on Linux systems engineering within containerized, cloud‑hosted, virtualized, and dataflow‑processing environments supporting DoD and Intelligence Community missions.You will work closely with users, customers, and a small mission‑focused engineering team to maintain system integrity, performance, security, and operational availability across enterprise and mission systems. This position requires strong troubleshooting skills, deep Linux systems expertise, and experience supporting secure operational environments requiring SSP compliance and STE/STN support.The ideal candidate enjoys working across infrastructure layers including operating systems, networking, storage, security, and application support while solving complex operational challenges in secure mission environments.Key ResponsibilitiesSupport systems engineering and system administration activities across secure Linux enterprise environmentsMaintain system integrity, availability, performance, and security across mission‑critical Linux systemsSupport and maintain containerized and cloud‑hosted environments, including Kubernetes‑based deployments and AWS infrastructureAdminister and support virtualization platforms and enterprise storage management solutionsConfigure and troubleshoot IP networking, routing, switching, and firewall technologies within Linux‑centric environmentsSupport application deployments and provide advanced troubleshooting across OS, network, storage, and security layersImplement and maintain system hardening, PKI/TLS configurations, cryptographic policies, and secure configuration baselinesEnsure systems comply with SSP documentation requirements and STE/STN security standardsSupport system patching, vulnerability remediation, and secure operational sustainment activitiesTroubleshoot complex system, network, application, and dataflow issues while escalating operational risks and outages as requiredSupport mission dataflow systems, including monitoring, troubleshooting, and optimizing data pipelinesAssist in the operation and support of RF systems, signal transport components, and mission transport environmentsSupport logging, monitoring, and analytics platforms such as ELK / Elasticsearch for system observability and troubleshootingDevelop and maintain operational procedures, system documentation, and technical implementation guidanceCollaborate closely with engineering, operations, and security teams to support mission objectivesRequired Skills and QualificationsStrong Linux systems engineering and administration experienceExperience supporting containerized and cloud‑hosted environmentsExperience supporting virtualization platforms and enterprise storage management solutionsStrong understanding of IP networking, routing, switching, and firewall technologiesStrong understanding of PKI, TLS, cryptographic principles, and Linux crypto policiesExperience supporting SSP compliance documentation and STE/STN security requirements on Linux systemsStrong troubleshooting skills across infrastructure layers including operating systems, networking, storage, and applicationsExperience supporting enterprise applications within secure Linux environmentsFamiliarity with Kubernetes, AWS, and modern infrastructure technologiesExperience with automation and configuration management tools such as Ansible or similar platforms is a plusStrong analytical, troubleshooting, and problem‑solving skillsStrong written and verbal communication skillsAbility to work independently and collaboratively within operational engineering teamsEducation and ExperienceOne of the following combinations is required:Bachelor's degree in a qualified engineering field or a related discipline from an accredited college or university, plus six (6) years of systems engineering experience; ORHigh School Diploma or GED, plus ten (10) years of general systems engineering experience across any process area; ORMaster's degree in a qualified engineering field or a related discipline from an accredited college or university, plus four (4) years of systems engineering experience; ORPhD in a qualified engineering field or a related discipline from an accredited college or university, plus two (2) years of systems engineering experience.Qualified engineering fields include, but are not limited to: Aeronautics, Biomedical, Chemical, Civil, Computer, Electrical, Environmental, Mechanical, Nuclear, Software, Systems, and Engineering Management. Comparable or closely related engineering degrees will be considered.Related disciplines include, but are not limited to: Chemistry, Computer Science, Information Systems, Mathematics, and Physics. Comparable or closely related degrees will be considered.Preferred QualificationsExperience supporting real‑time or near‑real‑time data processing environmentsExperience supporting RF systems, antenna hardware, or signal transport systemsExperience with dataflow processing platforms or mission transport systemsExperience supporting ELK / Elasticsearch monitoring and analytics environmentsExperience supporting secure DoD or Intelligence Community operational systemsClearance RequirementMust possess an active TS SCI with appropriate Polygraph to be considered for this roleWhy Choose Independent SoftwareSupport critical national security missions that matterBe part of a close‑knit, employee‑first culture where your voice is heardExpand your skills through ongoing training, mentorship, and career developmentEnjoy competitive compensation, generous benefits, and work‑life balanceReady to take the next step in your career? Join us and be part of something bigger.Apply today.We're an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.#J-18808-Ljbffr