Jobs at Treeline Security

The Sr Principal Cyber Systems Engineer role is based in San Diego, CA, within Northrop Grumman Mission Systems, focusing on enterprise-wide digital transformation for critical national defense products. Key responsibilities include deploying and maintaining complex airborne and terrestrial tactical communication systems, performing hands-on system installation and integration, and configuring secure Linux, Windows, and cloud environments to meet strict security requirements. The position requires significant travel, up to 50% of the time, to support operations across classified laboratories. This opportunity appeals to candidates seeking to work on revolutionary systems that impact global security, offering a culture that values intellectual curiosity, innovation, and continuous learning. Relocation assistance may be available for qualified candidates holding an active Secret clearance.

This Cyber Systems Engineer or Principal Cyber Systems Engineer role is based in San Diego, CA, supporting Northrop Grumman Mission Systems in an enterprise-wide digital transformation. The position involves hands-on installation and integration of complex airborne and terrestrial tactical communication systems, alongside configuring and hardening secure Linux, Windows, and cloud environments. Key responsibilities include managing system operations, performing security audits, generating compliance reports, and collaborating with diverse teams to improve deployment processes. The role offers the appeal of working on revolutionary national defense technologies within a culture that values innovation, intellectual curiosity, and continuous learning. Candidates must maintain a Secret clearance and be prepared for up to 50% travel to classified laboratories across the United States.

This full-time Principal Test Engineer role supports the Command and Control, Battle Management, and Communications program within Northrop Grumman Space Systems in Colorado Springs. The position focuses on regression testing for the Missile Defense System, requiring deep technical knowledge of sensors, command and control networks, and system integration. Key responsibilities include managing Agile development cycles, conducting complex troubleshooting of distributed virtual environments, and verifying system capabilities for strategic defense operations. The role appeals to candidates seeking to work on revolutionary national security systems with a pioneering culture that values intellectual curiosity and cognitive diversity. While the position requires on-site work and a Secret security clearance, it offers a comprehensive benefits package including health plans, savings options, and professional development opportunities.

The Senior Staff AI Builder role at Artera is a high-impact individual contributor position within the engineering team, focused on defining the future of the company's agentic AI platform. The role involves owning multi-squad technical areas such as reliability, evaluation, and integration, while establishing standards and best practices that drive shared capabilities across the organization. Key responsibilities include diagnosing systemic issues to improve quality and velocity, mentoring other engineers, and representing the engineering practice in senior customer and vendor conversations. This position is appealing due to Artera's award-winning culture, rapid growth as a top-rated workplace, and the opportunity to shape ethical AI standards in a mission-driven healthcare environment. The role is based in one of three U.S. hiring hubs—Santa Barbara, Seattle, or Kansas City—with specific on-site or hybrid schedules depending on the location.

This senior-level IT Project Management role serves as a key member of the Project Management Office within the Governor's Technology Office in Carson City. The position focuses on overseeing high-visibility enterprise initiatives and smaller projects by planning, coordinating, and managing IT lifecycles using established methodologies. Key responsibilities include leading stakeholder meetings, developing comprehensive project artifacts such as charters and risk registers, and analyzing data to mitigate schedule risks and scope creep. The role offers the opportunity to work on critical statewide technology systems while providing technical consultation and resource allocation guidance across multiple departments. This position appeals to experienced professionals seeking to lead complex projects in a collaborative environment dedicated to building diverse and innovative work cultures.

This full-time Staff Computer Systems Analyst role supports the Classified Solutions team within Northrop Grumman's IT Infrastructure & Operations organization in Linthicum, Maryland. The position requires on-site presence and involves leading multi-user computer systems, architecting enterprise enhancements, and managing secure Windows domain environments. Key responsibilities include directing network operations, overseeing backup and recovery services, and providing strategic technical mentorship to junior and senior team members. The role appeals to experienced professionals seeking to work on revolutionary defense systems with a pioneering culture that values intellectual curiosity. Candidates benefit from a collaborative team environment, extensive learning opportunities, and a flexible 9/80 work schedule.

This full-time Staff Computer Systems Analyst role supports the Classified Solutions team within Northrop Grumman's IT Infrastructure & Operations organization in Linthicum, Maryland. The position requires on-site presence and involves leading multi-user computer systems, architecting enterprise enhancements, and managing secure Windows domain architectures in classified environments. Key responsibilities include directing network operations, overseeing backup and recovery services, and providing strategic technical mentorship to team members. The role appeals to experienced professionals seeking to work on revolutionary defense systems with a culture that values intellectual curiosity and innovation. Candidates benefit from a collaborative team environment, extensive learning opportunities, and a flexible 9/80 work schedule.

This hybrid Product Owner role supports U.S. Air Force operations and growth strategy within Enlighten's big data and cyber capabilities division. The position involves acting as a subject matter expert for the Big Data Platform, gathering software requirements, and establishing development roadmaps to integrate analytics into daily customer operations. Key responsibilities include fostering government relationships, managing the DevSecOps pipeline, and driving adoption of new capabilities. The role offers a collaborative environment with a hybrid schedule requiring onsite presence at Fort Meade two to three days a week and up to 25% travel. It appeals to candidates seeking to leverage their DoD cyber experience in a culture that values innovation, provides comprehensive benefits, and supports professional growth through training allowances.

This full-time Help Desk Specialist role supports USSOCOM and allied forces at Fort Benning, Georgia, within Peraton's national security IT division. The position involves resolving end-user incidents using tools like Remedy and MECM, managing account creation, and troubleshooting hardware and software issues including Windows OS and O365. Key responsibilities include re-imaging devices, maintaining file access, and escalating complex tickets to appropriate support groups. The role appeals to candidates seeking to contribute to critical national security missions while working with a collaborative team. An active DoD TS/SCI clearance is required, and the position is based on-site at the Fort Benning location.

This full-time Systems Administrator role supports the SITEC program at MacDill AFB, providing critical IT operations for Special Operations Forces. The position involves deploying and managing virtual machines on VMware and Nutanix platforms, troubleshooting complex hardware and software infrastructure issues, and maintaining system security through certificate management and identity controls. Key responsibilities include performing server builds, monitoring system performance, and documenting standard operating procedures to ensure 24x7x365 availability. The role appeals to candidates seeking to work on high-impact national security missions within a collaborative team environment. While the position requires on-site presence and shift work, it offers the opportunity to utilize advanced technologies in a mission-critical setting with a focus on professional growth and operational excellence.

This role serves as a Zero Trust Systems Architect supporting the SITEC program at MacDill Air Force Base for the United States Special Operations Command. The position provides technical leadership to sustain enterprise networking and security operations aligned with Zero Trust principles across classified and unclassified environments. Key responsibilities include designing secure cloud-native and hybrid infrastructure, managing identity and access controls, and implementing cybersecurity compliance measures to ensure mission assurance. The role appeals to professionals seeking to work on critical national security missions with a team dedicated to solving complex cyber challenges. The position requires on-site presence at the base and involves operating within a 24x7x365 environment to support globally distributed forces.

This Cloud Systems Engineer role supports the SITEC program at MacDill AFB, providing critical IT infrastructure services to U.S. Special Operations Command. The position focuses on designing, managing, and securing core cloud environments across AWS and Microsoft Azure. Key responsibilities include provisioning cloud resources, implementing infrastructure as code, migrating legacy systems, and delivering Tier 3 troubleshooting to ensure 24/7 mission uptime. The role offers the opportunity to work on high-impact national security missions within a collaborative engineering team. Candidates will engage in system design reviews, mentor junior administrators, and drive modernization efforts. This full-time position requires a valid TS/SCI security clearance and is based on-site at the Florida facility.

This full-time role involves conducting comprehensive background investigations to support national security initiatives for the Department of Homeland Security. The position requires an active Top Secret clearance and focuses on interviewing subjects, reviewing records, and submitting detailed reports within strict timelines. Key responsibilities include performing local field interviews, documenting findings, and occasionally traveling for extended periods across the United States. The role appeals to candidates seeking a mission-driven career within a culture that prioritizes integrity, trust, and professional growth. CACI offers a flexible work environment that supports work-life balance, along with access to robust learning resources and a supportive team dedicated to the safety of the nation.

This full-time Project Manager role at Allied Universal Technology Services focuses on overseeing electronic security system integration for a large-scale data center construction project in Richland Parish, Louisiana. The position is hands-on and site-based, requiring daily presence at the construction trailer to manage scheduling, subcontractors, budgets, and compliance for specialized systems like access control and CCTV. Key responsibilities include leading superintendents and technicians, coordinating with vendors and clients, monitoring project performance to mitigate risks, and managing financial aspects such as change orders and invoicing. The role offers the appeal of working on high-impact, mission-critical infrastructure projects within a fast-paced environment. Benefits include a company vehicle, gas card, comprehensive health insurance, retirement plans, and paid time off.

This Assistant Vice President role serves as a subject matter expert within the Security Master and Data Management team, supporting end-to-end middle office activities for institutional clients. Key responsibilities include coordinating conversion planning and testing, leading data mapping specifications from legacy systems, and managing the reference data lifecycle from requirements analysis through implementation. The position requires acting as the primary client-facing contact to drive solutioning and issue resolution while collaborating across global business units. The role is appealing due to its opportunity to shape the future of capital markets operations within an inclusive culture that values employee development and offers flexible work-life support. The position involves occasional travel for onsite visits and requires working across different time zones.

The DHS Credentialed Background Investigator role involves conducting comprehensive background checks to support national security initiatives for CACI. Key responsibilities include interviewing subjects and references, reviewing records, and submitting detailed investigation reports within strict timelines. The position requires an active Top Secret clearance and involves up to 25% local travel, including occasional multi-week temporary duty assignments. This opportunity appeals to candidates seeking a mission-driven career within a culture that values integrity, trust, and professional growth. The role offers flexibility to balance work and personal life, access to robust learning resources, and the chance to contribute to the safety of the nation alongside a high-performing team.

This founding Product Marketing Manager role at Oneleet focuses on building the content and collateral strategy for a fast-growing cybersecurity and compliance platform. The position involves creating sales enablement assets like battlecards and ROI frameworks, developing thought leadership white papers, and establishing competitive intelligence programs to support the sales team. The role sits at the intersection of product, sales, and marketing to translate technical capabilities into compelling narratives for C-level buyers. This opportunity appeals to self-starters who want to build a product marketing function from the ground up without inherited libraries. The company offers a remote-first culture with global hiring, a tight-knit team of opinionated rebels, and a mission to make cybersecurity painless. Benefits include comprehensive health coverage, generous time off, and team off-sites.

This full-time Embedded Software Engineer role within Northrop Grumman Mission Systems focuses on developing and maintaining test software for Radio Frequency production hardware in Rolling Meadows, Illinois. The position involves designing test procedures, troubleshooting software and hardware discrepancies, and collaborating with cross-functional teams to ensure quality acceptance testing for military-grade electronic warfare systems. Key responsibilities include updating test equipment software, performing environmental screening, and driving continuous improvement initiatives to reduce defects and cycle time. The role appeals to innovative problem solvers seeking to work on revolutionary defense technologies in a culture that values intellectual curiosity and resilience. While the position is primarily on-site, it includes approximately 10% travel. The company offers a comprehensive benefits package, professional development opportunities, and flexible scheduling options such as a 9/80 work schedule.

The Revenue Manager role within Amentum's Corporate Finance and Accounting Team oversees revenue recognition processes, including operational and Estimate at Completion calculations for government contracts. Key responsibilities include ensuring compliance with ASC 606 and Sarbanes-Oxley standards, leading monthly revenue close activities, supervising the Revenue Principal, and acting as a subject matter expert for mergers and acquisitions. This position appeals to professionals seeking to drive organizational growth within a global engineering leader known for its collaborative culture and commitment to safety. The role offers remote-telework flexibility, provided the candidate resides within three hours of specific Virginia, Maryland, or Texas offices, and involves working with cross-functional teams to streamline financial reporting and internal controls.

The Scheduler role within Qualus Program Management focuses on developing and maintaining detailed cost and resource-loaded project schedules for power infrastructure initiatives. Key responsibilities include gathering progress data from project managers and field personnel, reviewing change order logs, and utilizing tools like Primavera P6 and SAP to interpret productivity trends and generate accurate reports. This position requires strong analytical skills to communicate complex data clearly to operations management while adhering to strict deadlines. The role appeals to candidates seeking to contribute to grid modernization and sustainability efforts within a collaborative, high-impact environment. The position is based in Oregon and requires on-site presence, offering opportunities for professional growth in a leading power solutions firm.

The Plane Captain role at Amentum involves leading aircraft handling and servicing operations on the flight line for a global engineering team. Key responsibilities include performing daily and turnaround inspections, launching and recovering aircraft, directing taxi operations, and providing technical guidance to junior staff. The position requires strict adherence to safety protocols, maintenance documentation, and equipment preservation. This opportunity appeals to candidates seeking a mission-driven environment with a strong emphasis on safety, collaboration, and professional growth. The role offers a comprehensive benefits package and requires flexibility to work various shifts in an on-site flight line setting.

The Aircraft Maintenance Supervisor role at Amentum supports naval operations at NAS Fallon, Nevada, overseeing organizational-level maintenance for assigned aircraft. The position involves directing daily maintenance actions to ensure aircraft safety and airworthiness, managing technical documentation via NALCOMIS/OOMA, and coordinating with quality assurance and government oversight teams. Key responsibilities include supervising work groups, assigning workload priorities, and ensuring compliance with strict Navy technical directives and safety regulations. This opportunity appeals to experienced professionals seeking a leadership position within a global engineering firm known for its commitment to safety, collaboration, and complex mission support. The role requires on-site presence on the flight line and offers a collaborative environment where employees contribute to national security challenges.