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As a Lead Systems Engineer – RF Systems, you will bring extensive engineering judgment to that challenge—helping ensure requirements remain traceable, interfaces are fully defined, technical risks are understood, system baselines remain controlled, engineering decisions consider lifecycle impacts, and solutions can be verified against mission requirements. You will collaborate with Government stakeholders, developers, engineers, program personnel, and senior leaders to resolve technical issues, evaluate alternatives, manage interfaces and requirements, and guide engineering activities supporting mission delivery.

Everything we do is built on our commitment to do the right thing for our customers, our employees, and our communities. Learn more about the values and culture that are the foundations of our business.

Leidos

Lead Systems Engineer - RF Systems

Experience with all aspects of systems engineering, including developing, designing, allocating, and managing user and system-level requirements; calculating measures of performance and measures of effectiveness; leading the development of a system architecture; evaluating design tradeoffs; balancing technical risk between systems; defining and assessing interfaces; and providing oversight of verification and validation activities. Parsons welcomes an exceptional systems engineer to join our on-going Science and Technology (S&T) efforts at one of the Army’s premier R&D Centers at Aberdeen Proving Ground (APG), Maryland.

Parsons is a technology-driven engineering services firm with more than 70 years of experience in the engineering, construction, technical, and professional services industries. The corporation is a leader in many diversified markets with a focus on infrastructure, defense, security, and construction. Parsons delivers design/design-build, program/construction management, systems design/engineering, cyber/converged security, and other professional services packaged in innovative alternative delivery methods to federal, regional, and local government agencies, as well as to private industrial customers worldwide.

Parsons

Radar Systems Engineer

This requires exceptional interpersonal skills and tact to ensure that critical relationships are not only maintained but strengthened through engagement Provide input for requirements affecting the current project, as well as follow-on projects, and will be proactive in researching new technologies and how they could be employed for project improvement (e.g., cloud, AI, etc.) Help manage testing and validation of technical capabilities to ensure solutions meet operational needs, may be asked to draft and coordinate correspondence, provide briefings communicating operational planning to senior leaders and other mission partners, participate in or guide technical and operational discussions, meet with a variety of organizational elements in support of the project, and potentially deploy technical equipment in the field Optional TDY travel (up to 5-10%) may be available. The reputation of the customers organization may ride on how a candidate interacts with these partners Ability to explain technical topics and operations to a non-technical audience, and apply expertise to briefing audiences of varying technical and non-technical backgrounds Must be a team player and be able to work on a high-impact, multi-agency team to collaboratively tackle complex projects to achieve mission success.

YEAR

APOGEE INTEGRATION, LLC

Sr. Network Engineer

Que Technology Group is seeking an experienced Network Engineer to join a collaborative team supporting the networking environments of two unique operational customers. The ideal candidate has strong experience configuring and sustaining Cisco and Arista networking environments and is comfortable supporting firewalls, cryptographic equipment, and operational systems.

Que Technology Group

Network Engineer

Required Clearance: Active TS/SCI with Poly Citizenship: U.S. Citizenship Education: Bachelor's degree (or equivalent experience or combination of education/experience) in a relevant field; Experience: Job-specific experience performing in similar roles; required years of relevant experience varies depending on the role (for example, typically 3 years for Full Performance, 8 years for Senior, 12 years for Expert); job-specific experience includes:- Experience with software products and tools; - Extensive experience implementing new testing or operating environments to include developing implementation plans and gathering requirements;- Experience in managing or supporting the product development lifecycle;- Ability to clearly and concisely communicate technical topics to both technical and non-technical audiences;- Excellent written and oral communication skills. Why You Matter Veros delivers innovative cyber security, data analytics, operational engineering and technical operations consulting services to enable Intelligence Community programs and operations.

Veros Technologies, LLC

Systems Engineer

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FULL_TIME

Perform verification and validation (V&V) of models to ensure accurate information generation and interactions between independent algorithms against reference data, independent engineering models or higher-fidelity tools. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.

Johns Hopkins Applied Physics Laboratory

C2 Concept Modeling Simulation and Analysis Engineer

[AW]-iCims

As an Advanced Kinetic Weapons Engineer: Your primary responsibility will be to generate and analyze simulated guided missile data through the use of high-fidelity and mixed-fidelity simulations and statistical analysis tools. You will evaluate the performance of various existing and future interceptor systems, examining EO/IR and RF seeker operations, guidance and control performance, fire control sensor handover processes, missile proximity fuzing, and warhead efficacy.

2027 Graduate - Advanced Kinetic Weapons Engineer

Have a detailed understanding of multiple layers of operational concepts, including mission, infrastructure, platform, service, and endpoints, and apply that knowledge to improving capabilities as they are developed, throughout the systems engineering lifecycle, and transitioned to the operational environment. Lead efforts to design and develop systems to meet operational requirements, with a focus on capabilities to support cyber operations, by collaborating with multi-disciplinary teams and guiding them as the system proceeds through the systems engineering lifecycle.

Cyber Systems Engineer/Analyst

PART_TIME

The Global Advanced Digital Engineering team is Baltimore Aircoil Company’s (BAC) engine, combining domain SME, software, and automation expertise to build modular, scalable, and reusable engineering capability, including models, methods, tools, CAD and simulation environments, workflows, and digital architectures that improve speed, quality, and consistency of engineering outcomes across BAC’s products, applications, and digital ecosystems. The Staff Engineer, Advanced Thermal Modeling reports to the Principal Engineer, Advanced Thermal Modeling, and operates across BAC’s product portfolio, applications space, and global regions, requiring close coordination with NPI, CPI, Advanced Applications, and Global and Regional business teams, balancing deep technical contribution with cross-functional impact.

Baltimore Aircoil Company, Inc.

Staff Engineer, Advanced Thermal Modeling

This position is well suited for an early-career mechanical engineer with hands-on design experience who is interested in developing complex electromechanical systems and working closely with experienced engineers and multidisciplinary teams. Veraxx has a high level of expertise in flight simulation hardware and software development, as well as computer architecture, tactical environments, interoperability (HLA/DIS), avionics systems, graphics and real-time embedded systems.

Raydon Corp

Mechanical Engineer

The engineer should have working knowledge of test automation, including the use of automated test frameworks and scripts (e.g., Squish, Selenium, PyTest, Robot Framework) to run repeatable tests. Working both as a member of a team and independently, the successful candidate will: · Serve as a technical lead for systems and software integration in support of Development Test (DT) and Formal Test execution on the SkyLine-X KN-2 program.

Lead Systems Integration & Test Engineer

The engineer should have working knowledge of test automation, including the use of automated test frameworks and scripts (e.g., Squish, Selenium, PyTest, Robot Framework) to run repeatable tests. October 13, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Senior Systems Integration & Test Engineer

Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

Booz Allen is an advanced technology company. We build commercial-grade products and solutions for America’s most critical defense, civil, and national security priorities.

Booz Allen Hamilton Inc.

Satellite Systems Engineer, Lead

About The Role: Innovative Defense Technologies (IDT), provider of cutting-edge cloud-based integration, automated testing and data analysis for complex, mission-critical systems in the US Department of Defense (DOD), is seeking a Senior Software Engineer to be part of our Advanced Capabilities team and based out of our Arlington, VA location. What You Will Do: Support full development lifecycle including system design, implementation, integration, test, and deployment of complex systems supporting DoD and Navy operational.

Innovative Defense Technologies

Senior Software Engineer - JobID-0018

PinpointHQ

Python, C++, Bash, and scripting languages; ROS/ROS2, Git, GitLab, and source code management, Docker, containerization, and virtualization technologies, CI/CD pipeline development; Linux and embedded systems engineering, cloud and high-performance computing environments, machine learning operations (MLOps), computer vision and sensor data exploitation, data engineering, analytics, and visualization, simulation and modeling tools. The Senior Software Engineer / DevSecOps & Autonomous Systems Integration Engineer position provides advanced software engineering, systems integration, automation, analytics, and technical modernization support for autonomous systems, simulation environments, machine learning workflows, and mission-critical research and development programs.

Kwaan Bear IT Solutions

Software Engineer, Senior

You'll lead a delivery team within a cross-functional program that includes software engineers, solution and cloud architects, database administrators, DevSecOps engineers, quality assurance specialists, user experience professionals, business analysts, product managers, data analysts, accessibility and security specialists, and behavioral health subject matter experts. 2+ years using automated testing and Git-based development workflows, including pull requests, code reviews, and release management; 1+ year supporting cloud-hosted applications using containers or comparable deployment approaches.

ICF (NASDAQ:ICFI) is a global consulting and technology services provider with more than 5,000 professionals focused on making big things possible for our clients. We are business analysts, policy specialists, technologists, researchers, digital strategists, social scientists and creatives. Since 1969, government and commercial clients have worked with ICF to overcome their toughest challenges on issues that matter profoundly to their success. Come engage with us at icf.com.

ICF International Inc

Senior Software Engineer/Tech Lead

To ensure your safety and help you navigate your job search with confidence, please keep the following critical points in mind: No Financial Requests: Anduril will never solicit payment or demand personal financial details (such as banking information, credit card numbers, or social security numbers) at any stage of our hiring process. Beyond stage gate support, you will take on ad-hoc, cross-functional projects as the Manufacturing Engineering representative - stepping in to support design, quality, supply chain, or operations when an experienced ME perspective is needed.

ANDURIL INDUSTRIES

Senior Project Engineer, Ad&S

To ensure your safety and help you navigate your job search with confidence, please keep the following critical points in mind: No Financial Requests: Anduril will never solicit payment or demand personal financial details (such as banking information, credit card numbers, or social security numbers) at any stage of our hiring process. This role will focus on the design, build, and sustainment of HITLs including but not limited to overall system architecture, procurement, harness diagrams, breakout box designs, switching mechanisms, PCB designs, and test troubleshooting.

Integration And Test Engineer, Electrical

The Launch Vehicle Systems Engineer role will provide technical leadership and apply launch vehicle systems engineering expertise to ensure the effective execution of the Aerospace launch verification processes through a range of activities to include Chief Engineer's Review Boards (ChERB), non-recurring design validation (NRDV) assessments, and launch vehicle flight readiness verification through completion of tasks in the Launch Verification Matrix (LVM). DSG is unique at Aerospace as it not only directly supports major customers, including the U.S. Space Force, U.S. Space Command, Air Force Material Command, and senior leadership at the Pentagon, but also provides a broad range of technical support across the national space enterprise, maintaining vertical responsibilities with customers' portfolios as well as horizontal, matrixed responsibilities across the corporation.

The Aerospace Corporation is a national nonprofit corporation that operates a federally funded research and development center and has more than 4,600 employees. With major locations in Chantilly, Virginia; El Segundo, California; Albuquerque, New Mexico; and Colorado Springs, Colorado, Aerospace addresses complex problems across the space enterprise and other areas of national and international significance through agility, innovation, and objective technical leadership. For more information, visit www.aerospace.org.

The Aerospace Corp

Launch Vehicle Systems Engineer

In this role, you will embed with clients as a key technical leader, defining AI architecture, leading model development and optimization, and solving challenging integration problems in live enterprise environments. This role is ideal for an experienced engineer who thrives on architectural decisions, can own systems end-to-end, and drives real outcomes at the intersection of technical depth and client partnership.

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Senior Systems Integration & Test Engineer Leidos

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