Jobs at Treeline Security

This onsite Senior Information Systems Security Officer II role is based in Marlborough, Massachusetts, supporting the cybersecurity team at a leading aerospace and defense organization. The position focuses on compliance oversight, conducting technical assessments, and managing configuration requests for information systems in accordance with DoD and NIST standards. Key responsibilities include mentoring junior ISSOs, integrating new security processes, and serving as a subject matter expert for complex network environments. The role offers the opportunity to work on high-impact projects that protect national security while fostering a culture of innovation and collaboration. Candidates must hold an active Secret clearance and be a U.S. citizen. The position requires 100% onsite presence with intermittent travel to other facilities.

This part-time temporary role supports the Public School Facilities Authority's IT Department in Southeast Albuquerque with a focus on systems administration and security. The specialist manages Microsoft 365 services, including Entra ID and Intune, while implementing security controls and compliance documentation. Key duties include assisting with cloud migrations, coordinating vulnerability remediation, and ensuring infrastructure stability through backup and recovery processes. The position offers the opportunity to contribute to digital transformation projects and gain experience in a public-sector environment with a clear path for knowledge transfer. The assignment is expected to last one year with an immediate start date.

The Master-at-Arms role serves as the Navy's core security and law enforcement force, protecting personnel, installations, and strategic assets globally. Key responsibilities include conducting antiterrorism patrols, managing access control, performing investigations, and operating security vehicles or boats in diverse environments ranging from ships to overseas bases. The position appeals to those seeking a structured career with significant professional growth, offering specialized training in areas like military working dogs, harbor security, and criminal investigation. The role provides continuous leadership development and the opportunity to serve in a mission-critical environment with close integration among joint and allied forces. Assignments involve a mix of domestic and international locations, including sea duty and expeditionary deployments, requiring adaptability and a commitment to 24/7 operational readiness.

This full-time Information System Security Officer role is based onsite at the RTX facility in Andover, Massachusetts, supporting the aerospace and defense cybersecurity team. The position focuses on ensuring system compliance with NISPOM and DAAPM policies, developing security plans, and conducting audits to maintain regulatory adherence. Key responsibilities include delivering security awareness training, investigating potential violations, and managing security sustainment activities such as hardware and software change controls. The role offers the opportunity to work within a global organization dedicated to solving complex national security challenges while fostering a culture built on trust, collaboration, and innovation. Candidates must hold an active Secret security clearance and U.S. citizenship, with a requirement to obtain a professional security certification within six months of hire.

This onsite Senior Systems Engineer role at RTX's Huntsville facility supports digital radar test activities within the Surface Radars and Sensors department. The position requires an active Secret security clearance and focuses on planning and executing radar test events, performing comprehensive data analysis, and developing verification strategies for advanced radar capabilities across hardware-in-the-loop and field environments. Key responsibilities include generating modeling scenarios to predict performance, supporting real-time field analysis during flight tests, and collaborating with cross-disciplinary teams to validate system functionality. The role offers the opportunity to work on complex aerospace and defense challenges with a global leader, contributing to national security missions. While primarily based in Alabama, the position includes approximately 15-25% domestic travel for integration activities and test events.

This onsite role within Raytheon's Life Cycle Engineering team focuses on developing technical manuals for the LTAMDS program. The position involves assessing engineering data to update existing content and creating Interactive Electronic Technical Manuals that cover system theory, operations, and maintenance procedures. Key responsibilities include participating in safety and engineering peer reviews, supporting validation events, and ensuring quality standards are met. The role offers the opportunity to contribute to national defense by supporting a mission that creates a safer world. Candidates will work alongside a collaborative team of writers and illustrators, with occasional travel required. A U.S. citizenship and active Secret security clearance are mandatory for this position based in Huntsville, Alabama, Tewksbury, Massachusetts, or El Paso, Texas.

This onsite Principal Software Engineer role at RTX in Fort Wayne, Indiana, supports the Battle Management Software mission within the aerospace and defense sector. The position requires an active U.S. Secret security clearance and involves designing, developing, and integrating complex software solutions using languages such as C, C++, Python, or Ada. Key responsibilities include participating in Agile integrated product teams, executing continuous improvement initiatives, and collaborating with systems engineers to modify and test system baselines. The role appeals to candidates seeking to work on high-stakes national security projects with a team that values innovation, safety, and collaboration. The environment emphasizes DevSecOps principles and offers opportunities for professional growth within a global organization dedicated to solving complex technical challenges.

This onsite Senior Software Engineer role is based in Fort Wayne, Indiana, within the Space and RF Sensors team at Raytheon. The position focuses on designing, developing, and maintaining robust software for aerospace and defense applications, translating system requirements into detailed specifications, and collaborating with cross-functional engineering teams to ensure seamless integration. Key responsibilities include implementing and debugging solutions, participating in code reviews, and documenting technical processes. The role appeals to engineers seeking to contribute to national security missions using cutting-edge technologies like Generative AI and machine learning. It offers a collaborative culture rooted in innovation and work-life balance, requiring an active DoD Secret clearance and U.S. citizenship.

This onsite Mechanical Engineer II role is based in Portsmouth, Rhode Island, within the Undersea & Electronics Systems department of Raytheon's Hardware Engineering organization. The position focuses on the full lifecycle design, development, and documentation of defense system components, ranging from initial concepts to production support. Key responsibilities include creating detailed engineering drawings and models, performing tolerance analysis, selecting materials for structural and environmental durability, and collaborating with cross-functional teams to solve complex technical challenges. The role offers the appeal of working on meaningful mission-critical projects that enhance national security, supported by a culture rooted in safety, innovation, and collaboration. Candidates must be U.S. citizens eligible for a security clearance, and the position involves occasional domestic travel to customer sites or suppliers.

This onsite Senior Principal Technical Lead role within Raytheon's Flight Avionics Department focuses on guiding cross-functional teams in developing complex electrical subsystems for defense applications. The position involves ensuring technical integrity of guidance systems, managing technical risks, overseeing failure investigations, and defining interfaces across hardware and software domains. Key responsibilities include leading trade studies, validating technical data packages, and collaborating with suppliers and government customers throughout the product lifecycle. The role appeals to experienced engineers seeking to solve meaningful national security challenges within a culture rooted in trust, innovation, and mentorship. Candidates will work primarily in Tucson, Arizona, with potential for lab work, field demonstrations, and occasional travel, offering a chance to grow into higher-level leadership while contributing to a safer, more secure world.

This onsite role within the RF Microelectronics Department at Raytheon involves supporting 1st shift wet etch processes for semiconductor fabrication in Andover, Massachusetts. The engineer focuses on III-V wet chemistry processing, including wet etch and electroplating, while managing deposition-related tasks for gallium arsenide and gallium nitride products. Key responsibilities include conducting failure analysis, troubleshooting out-of-control process events, training manufacturing personnel, and collaborating with cross-functional teams to reduce scrap and improve efficiency. The position offers the opportunity to work on meaningful defense missions that enhance national security, fostering a culture rooted in trust, innovation, and collaboration. Candidates must hold an active Secret security clearance and possess a STEM degree with significant semiconductor processing experience. The role requires full-time presence on the manufacturing floor to ensure rapid issue resolution and maintain production schedules.

This onsite Senior Electrical Engineer role within the Multi-Product Power & Digital department at Raytheon focuses on digital hardware design for critical defense systems like radars and electronic warfare. The position involves defining circuit card architectures, leading FPGA and processor design, and managing integration and verification activities. Key responsibilities include performing signal integrity simulations, collaborating with layout teams, and mentoring junior engineers while driving project schedules. The role appeals to candidates seeking to apply advanced engineering expertise to meaningful national security missions within a collaborative culture rooted in trust and innovation. Candidates must hold an active Secret clearance and be U.S. citizens, with the opportunity for relocation support available.

This entry-level Financial Analyst role supports the Royal Australian Navy MH-60R Program within V2X's global defense operations. The position involves tracking case budgets, executing funding within Navy ERP systems, and assisting with Letter of Offer and Acceptance modifications under senior guidance. Key responsibilities include analyzing expenditure forecasts, performing variance analysis, and coordinating with program offices and government agencies. The role offers valuable developmental experience in Department of Defense financial management processes and exposure to international defense logistics. It is ideal for recent graduates or professionals with up to two years of experience seeking to grow their skills in a mission-driven environment. The position requires an active DOD Secret Clearance and U.S. citizenship, with occasional travel as needed.

This onsite Senior Production Support Electrical Engineer role is based in Plano, Texas, within the Airborne RF Electronics department supporting the Advanced Airborne Sensor program. The position requires an active DoD Secret clearance and U.S. citizenship. Key responsibilities include conducting technical evaluations of hardware, categorizing failure modes, leading improvement initiatives to enhance production efficiency, and ensuring Special Test Equipment functionality. The engineer will collaborate with cross-functional teams including manufacturing, quality, and supply chain, with periodic travel up to 25 percent. The role appeals to candidates seeking to contribute to national defense missions within a culture rooted in trust, respect, and innovation, offering opportunities to solve meaningful engineering challenges in a fast-paced manufacturing environment.

This onsite Senior Principal Engineer role at RTX in Plano, Texas, focuses on architecting scalable and secure infrastructure platforms for critical aerospace and defense programs. The position requires an active Top Secret clearance and involves designing automation solutions, integrating compute and network systems, and translating complex technical requirements into actionable architectures. Key responsibilities include collaborating with cross-functional teams to align with DevSecOps practices, utilizing Model-Based System Engineering, and ensuring security compliance across Linux and Windows environments. The role appeals to engineers seeking to solve complex global challenges within a culture that values innovation, safety, and collaboration. It offers the opportunity to work on mission-critical systems that help protect national security while contributing to a world-class engineering team.

The Product Champion role at Enlighten is a mid-senior position within the cyber analytics and data science team, focusing on defensive cyber operations and big data platform support. Key responsibilities include conducting threat hunt operations, performing statistical analysis to build predictive models, and translating complex data into intuitive visualizations for customers. The role requires daily on-site presence in Washington, DC, with occasional travel, and involves direct collaboration with government clients to define requirements and provide real-time operational support. This position is appealing due to Enlighten's recognition as a Top Workplace, a culture that celebrates innovation, and a comprehensive benefits package including fully paid healthcare and professional development allowances.

This onsite Network Engineer role at Peraton supports the SITEC program for USSOCOM at Fort Bragg, NC, focusing on maintaining critical network operations for special operations forces. The position involves designing and managing complex LAN, WAN, and VoIP infrastructures, performing disaster recovery, and implementing cybersecurity strategies using tools like Palo Alto firewalls and Cisco systems. Engineers also provide architectural planning, mentor junior technicians, and ensure compliance with DoD directives. The role appeals to professionals seeking to work on high-impact national security missions with a collaborative team environment. Candidates must hold a TS/SCI clearance and possess relevant certifications. The position may require non-standard schedules to support 24/7 global operations.

This Principal Engineer Field role supports the Integrated Air and Missile Defense Battle Command System (IBCS) for the US Army, based in Huntsville, AL, with potential relocation to Poland for equipment fielding. The position involves conducting technical analysis of product implementations, troubleshooting complex network and system issues, and providing on-site training and support to international customers. Key responsibilities include acting as a technical liaison, directing field technicians, and ensuring successful deployment of tactical defense systems. The role appeals to candidates seeking to work on revolutionary national security missions within a culture that values intellectual curiosity and innovation. It offers significant professional growth through exposure to global operations and requires approximately 25% travel, including potential six-month deployments abroad.

This Platform and Automation Engineer role supports the SITEC program at MacDill AFB, delivering critical IT operations for Special Operations Forces. The position focuses on the initial deployment, configuration, and automation of the Cisco Secure Workload microsegmentation platform. Key responsibilities include installing and configuring the platform cluster, integrating it with enterprise logging and identity systems, and developing automation workflows for sensor deployment. The role concludes with handing over a stable, documented system to the operations team. This opportunity appeals to professionals seeking to work on high-impact national security missions within a collaborative environment. The position requires a valid TS/SCI security clearance and is based on-site at the Florida facility.

The Information Systems Watch Technician role supports senior leadership decision-making teams in Arlington, Virginia, by maintaining and ensuring the availability of critical telecommunications systems. Key responsibilities include operating, troubleshooting, and restoring voice, video, and data networks; coordinating with third-party providers; and training users on complex communication equipment. The position involves managing 24/7 operations through a rotational 12-hour shift schedule and requires making tactical decisions in high-pressure environments. This opportunity appeals to candidates seeking specialized training in unique mission-critical systems and the chance to work within a culture that prioritizes safety, quality, and continuous process improvement. The role includes occasional travel to support evolving customer requirements.

The IT Service Desk Specialist III role supports federal government clients within Lawelawe Defense Inc, a Native Hawaiian-owned small disadvantaged business. The position involves providing advanced technical assistance for hardware, software, and systems while serving as the escalation point for moderate to highly complex issues. Key responsibilities include troubleshooting devices, managing tickets via ServiceNow, performing server administration tasks, and maintaining accurate government asset inventories. This full-time opportunity appeals to candidates seeking to contribute to a mission-driven organization that uplifts Native Hawaiian families while working in a professional office environment. The role requires an active secret security clearance and offers a collaborative team setting with occasional evening or weekend hours to meet business needs.

The Technology Operations Specialist role is based in Newport News, Virginia, and focuses on managing application administration for fleet, output, and scanning software solutions within client environments. Key responsibilities include maintaining relationships with client IT administrators, ensuring up-to-date knowledge of networking environments, and performing technical support and issue resolution. The position also involves training internal personnel on troubleshooting strategies and communicating chronic technology issues to the account team. This opportunity appeals to candidates seeking a collaborative culture driven by innovation and social responsibility, offering a full-time position with up to 30% travel to client sites. The role supports professional growth through required certifications and provides a flexible dress code alongside various employee perks and community volunteer opportunities.

This full-time Truckdriver-Heavy role involves operating gas or diesel trucks up to 14,000 pounds to transport parts, materials, and equipment to government installations and other destinations. Key responsibilities include inspecting vehicles for defects, securing loads, performing daily preventive maintenance, and assisting with loading and unloading operations while adhering to strict safety and quality protocols. The position offers a collaborative culture focused on continuous safety development and professional growth through training opportunities. Employees work in a dynamic environment that may include off-road conditions and variable weather, with the opportunity to obtain a Secret Security Clearance. The role requires a valid operator's license and the ability to lift up to 60 pounds.