Jobs at Leidos

26,584 open positions

Leidos is a leading technology and engineering company that delivers solutions for defense, civil, and health agencies. With a focus on cyber, AI, and systems integration, Leidos helps clients protect critical infrastructure and innovate across national security and public health.

Leidos hires a wide spectrum of talent—from software engineers and data scientists to cybersecurity analysts, systems integrators, and project managers. Candidates can expect competitive benefits, continuous learning opportunities, and projects that have real‑world impact on government and commercial customers.

Checking Leidos listings on Job Transparency gives you instant access to salary ranges, employee sentiment, and market benchmarks, letting you negotiate confidently and find the best match for your career goals.

Systems Engineer Intern

Company: Leidos

Location: Washington, DC

Posted Nov 21, 2024

Leidos is seeking a Systems Engineer Intern for technical assistance and support in IT planning, solution design, and documentation. The role involves working with the 894th Communications Group at Joint Base Andrews in Camp Springs, Maryland. The ideal candidate should have basic IT knowledge, preferably in Windows, Networking, Linux, and/or Cyber. Excellent communication skills and customer-oriented experience are highly valued. Primary responsibilities include documenting and designing technical solutions, supporting the Engineering team, assisting with virtualization solutions, and collaborating with other work centers. The job requires a degree in Computer Science or Cyber, ability to obtain Secret security clearance, and DOD 8570 certification at IAT Level II or higher. The pay range is $44,850.00 - $81,075.00.

Space Payload Software Engineering Manager

Company: Leidos

Location: San Diego, CA

Posted Nov 21, 2024

Leidos is seeking a Software Engineering Manager for a team in San Diego, CA. The role involves managing a small team to design, develop, integrate, and test embedded software for space payloads. The ideal candidate should have experience in embedded systems, real-time operating systems, and hands-on technical work. They must be a self-starter with software engineering management experience, preferably in hard, real-time applications. The role offers an opportunity to work on cutting-edge solutions, manage software efforts across multiple programs, and contribute to all phases of the product life cycle.

Research Assistant III

Company: Leidos

Location: Dayton, OH

Posted Nov 21, 2024

Leidos is seeking a Research Assistant III to aid in clinical and experimental intramural human use research at NAMRU-D, Dayton, OH. The role involves conducting research, managing day-to-day lab operations, and supporting the research process across the project's lifecycle. The successful candidate will be involved in multidisciplinary-multi-university programs for vestibular/balance research, understand the application of human research to address operation needs of the joint fleet, and support research in areas pertinent to the United States Navy. The ideal candidate should have a Bachelor's degree with 8+ years of relevant experience or a Master's degree, preferably in kinesiology/physiology fields. Excellent written and oral communication skills, ability to collaborate with stakeholders, and experience in a military or medical research environment are highly desired.

Senior Project Manager

Company: Leidos

Location: Fort Meade, MD

Posted Nov 21, 2024

Leidos is seeking a Senior Project Manager for the Nuclear Command, Control, and Communications (NC3) Enterprise Center's Systems Engineering and Integration Division at Fort Meade, MD. The role involves leading and orchestrating team activities, developing project plans, promoting communication, coaching team members, and ensuring project quality. The ideal candidate should have a Top Secret/SCI Security Clearance, relevant experience in DoD communication systems, and Project Management certifications. The position offers the opportunity to work on critical communications infrastructure and tackle significant national challenges.

TRICARE Beneficiary Services Representative -Aviano, Italy

Company: Leidos

Location: Cordenons, Italy

Posted Nov 21, 2024

Leidos is offering a Beneficiary Services Representative position in Aviano, Italy. The role involves providing education and enrollment services for the TRICARE Overseas Program, assisting beneficiaries with healthcare delivery, and maintaining confidentiality of Protected Health Information. The job comes with competitive benefits including PTO, retirement plan, tuition assistance, and a referral bonus program. The ideal candidate should have a degree in a related field or equivalent experience, be a US Citizen, and have a Soggiorno and Missione Visa. Fluency in English, strong communication skills, and proficiency in Microsoft Office are desired. The pay range is $28,600.00 - $51,700.00.

Junior Signal Processing Engineer

Company: Leidos

Location: Arlington, VA

Posted Nov 21, 2024

Leidos is seeking a Junior Signal Processing Engineer for Electronic Warfare (EW) programs in Arlington, VA or San Diego, CA. The role involves developing, modeling, and testing algorithms in tools like MATLAB, Simulink, or C++. The engineer will work on improving sensor and signal robustness in complex environments, contributing to research and advanced applications. Basic qualifications include a Bachelor's degree in a related field, 2+ years of experience, and active SECRET clearance. Preferred qualifications include a Master's degree, TS/SCI clearance, and experience in areas like digital filtering, spectral estimation, and radar signal processing.

Computational Fluid Dynamic Engineer

Company: Leidos

Location: Shalimar, FL

Posted Nov 21, 2024

The Electronic Warfare Division at Leidos is seeking a Computational Fluid Dynamic engineer for a position at Eglin AFB. The role involves performing CFD modeling and simulation for supersonic and hypersonic missiles, including gridding, simulations, gas dynamics calculations, flow visualization, and workflow programming. The candidate will use both local and DoD Distributed Supercomputing Resource Centers for massive deployment and monitoring of solutions. The position requires a Master's or Ph.D. in Aerospace, Mechanical or similar discipline, and 6+ years of experience. The candidate must have experience with supersonic and hypersonic CFD models, turbulence modeling, chemical equilibrium and non-equilibrium modeling, and block structured and unstructured gridding. Knowledge of overset practices for complex airframe component interactions, and ability to utilize DoD DSRC capabilities is also required. The role involves leading the development of innovative technical solutions, communicating with various Leidos teams and customer program leadership, and presenting regular status updates. A U.S. Citizen with active Secret clearance is required.

AEGIS SPY Radar Subject Matter Expert

Company: Leidos

Location: Dahlgren, VA

Posted Nov 21, 2024

Leidos is seeking a Full-time Experienced AEGIS SPY Radar Subject Matter Expert and Tactical and Technical Trainer for Combat Systems training in Dahlgren, VA. The role involves developing, organizing, and conducting combat systems and weapon system training programs. The ideal candidate should have a minimum of 7 years of US Navy surface warfare combat systems/platform experience, U.S. Citizenship, and Active Secret Security Clearance. They must be able to write clear technical correspondence, articulate in presentations, and possess strong interpersonal skills. Preferred qualifications include a degree in engineering, analysis, or related discipline, experience with Navy vessel training and readiness, surface and air warfare simulation, and Aegis SPY Radar Technician experience. The pay range is $61,750.00 - $111,625.00.

Information Systems Security Officer

Company: Leidos

Location: Chevy Chase, MD

Posted Nov 21, 2024

Leidos Dig Mod Health IT division is recruiting for an Information Systems Security Officer (ISSO) to support a health agency in Montgomery County, MD. The role involves providing on-site support, leading SA&A activities, evaluating security solutions, managing up to 12 personnel, coordinating updates, proposing and enforcing security policies, maintaining IA posture, developing SA&A documentation, assisting with data integrity and security, representing the program in governance meetings, handling cybersecurity defense, maintaining incident response playbooks, and ensuring security posture aligns with the technical architecture roadmap. The ideal candidate should have a Bachelor's Degree in Computer Science or related field, CISSP certification, 12-15 years of ISSO experience, deep technical understanding of cybersecurity technologies, knowledge of security best practices, and experience in large Federal agencies.

Personnel Security Administrator (PSA)

Company: Leidos

Location: Chantilly, VA

Posted Nov 21, 2024

Leidos is looking for an experienced Personnel Security Administrator (PSA) to join their Security Service Center in Chantilly, VA. The role involves managing files from various sites, processing clearance activities, and acting as a liaison between different parties. The candidate will be responsible for all aspects of personnel security functions, including processing new employees for security clearances, continuous vetting, and handling outgoing visit requests. They will also contribute to management reports and maintain personnel clearance databases. The ideal candidate should have a high school diploma or equivalent and 3-5 years of related experience, with a working knowledge of IC clearance processing procedures and proficiency in MS Office. Knowledge of IC government regulations and a TS/SCI clearance are required. Excellent interpersonal skills and the ability to work in a fast-paced team environment are essential.

Records Management Specialist

Company: Leidos

Location: Alexandria, VA

Posted Nov 21, 2024

Leidos Digital Modernization team is seeking a Records Management Specialist for a hybrid role based in Alexandria, VA. The position requires U.S. citizenship and an active Top Secret/SCI clearance. Key responsibilities include analyzing needs, developing alternatives, monitoring DoD programs, supporting NARA tasks, and communicating with senior leadership. The ideal candidate will have a Bachelor's degree and 6+ years of relevant experience, or a Master's degree with 2+ years of experience. Preferred qualifications include excellent communication skills, experience with federal organizations, and organizational change management.

ASW Analyst/Trainer

Company: Leidos

Location: Chevy Chase, MD

Posted Nov 21, 2024

Leidos' High Fidelity Simulation Business Area invites innovators to join their team. The role involves working with cutting-edge technology to develop and deploy naval training systems like CIAT and ATET. The Analyst/Trainer will be a subject matter expert, ensuring systems meet requirements and interact with various stakeholders. The position offers stability, flexibility, impactful work, and overtime compensation. U.S. citizenship and security clearance are required, along with extensive subject matter expertise in sonar systems.

Frequently Asked Questions

What is it like to work at Leidos?
Leidos offers a collaborative environment focused on mission‑driven projects. Employees benefit from flexible work arrangements, competitive health coverage, and tuition‑support programs. The culture emphasizes continuous learning, with internal training and certification pathways for cybersecurity, cloud, and data science.
What types of positions are available at Leidos?
Leidos needs talent in software development, data analytics, AI research, cybersecurity, systems engineering, project management, and technical writing. Roles range from entry‑level developers to senior architects, with opportunities in cloud platforms, edge computing, and defense‑grade systems.
How can I stand out as a Leidos applicant?
Tailor your resume to highlight mission‑aligned projects, quantify results, and list relevant certifications (e.g., CISSP, AWS Certified Solutions Architect). Showcase problem‑solving through portfolio or code samples, and mention experience with agile or defense‑grade standards. Leverage employee referrals through the Leidos LinkedIn group and prepare to discuss how your background supports national security or public‑health initiatives.

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