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Leidos Jobs (NOW HIRING)

Leidos

Transmission Line Engineer

Aurora, CO · On-site

$59K - $106K/yr

This will involve working with a multi-person Leidos team and interfacing with clients, project planning, environmental, permitting, and construction management personnel. Work Location: Ideally ...

Leidos

Transmission Line Engineer

Colorado Springs, CO · On-site

$59K - $106K/yr

This will involve working with a multi-person Leidos team and interfacing with clients, project planning, environmental, permitting, and construction management personnel. Work Location: Ideally ...

Leidos

DevOps Engineer

Manassas, VA · On-site

$87K - $157K/yr

Description The Leidos Intel sector has an opening for an experienced DevOps Engineer to assist with the development, integration, deployment, and sustainment of mission critical systems. Primary ...

Leidos

DevOps Engineer

Sterling, VA · On-site

$87K - $157K/yr

Description The Leidos Intel sector has an opening for an experienced DevOps Engineer to assist with the development, integration, deployment, and sustainment of mission critical systems. Primary ...

Leidos

Systems Administrator

Hurlburt Field, FL · On-site

$59K - $106K/yr

At Leidos, we believe in unleashing your talents to help you grow and advance rapidly in your career. We have an exceptional opportunity for a Systems Administrator to join our dynamic team at ...

Leidos

EUHW Lifecycle Support Specialist

Mechanicsburg, PA · On-site

$25 - $26.45/hr

At Leidos, we know the most talented and diverse IT and Engineering professionals will always have a multitude of career choices; your time at Leidos will be a wise investment in your career and in ...

Leidos

Aeronautical Information Specialist

Caseyville, IL · On-site

$52K - $94K/yr

Description The Leidos National Solutions Division has an exciting opportunity for a Journeyman Aeronautical Information Specialist to assist with the acquisition, logging, and distribution of ...

Leidos

Sensing Algorithm Engineer

Chula Vista, CA · On-site

$87K - $157K/yr

Description Leidos addresses some of the nation's toughest defense challenges through innovative signal processing and data analytics. Our San Diego-based team consists of highly skilled scientists ...

Leidos

Aeronautical Information Specialist

Wood River, IL · On-site

$52K - $94K/yr

Description The Leidos National Solutions Division has an exciting opportunity for a Journeyman Aeronautical Information Specialist to assist with the acquisition, logging, and distribution of ...

Leidos

Aeronautical Information Specialist

Arnold, MO · On-site

$52K - $94K/yr

Description The Leidos National Solutions Division has an exciting opportunity for a Journeyman Aeronautical Information Specialist to assist with the acquisition, logging, and distribution of ...

Leidos

Citrix Infrastructure Administrator

Arlington, VA · On-site

$73K - $132K/yr

Description Leidos is committed to delivering innovative solutions and supporting mission-critical operations for our customers. The DISA CESO ITSS team provides network operations and cyber defense ...

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Leidos information

What does Leidos do?

Leidos is a global company that provides scientific, engineering, systems integration, and technical services. They specialize in solutions for national security, health, engineering, and information technology for government and commercial clients. Leidos works on projects such as cybersecurity, data analytics, enterprise IT modernization, and mission support for organizations like the Department of Defense, intelligence agencies, and healthcare providers. Their work helps support critical missions in defense, civil, and health markets.

What are the key skills and qualifications needed to thrive as a Leidos employee?

To thrive at Leidos, professionals typically need expertise relevant to their field—such as engineering, IT, cybersecurity, or project management—supported by a relevant degree and industry certifications. Familiarity with technical tools like programming languages, cloud platforms, security frameworks, or specialized software (e.g., MATLAB, AWS, or cybersecurity suites) is highly valued. Strong problem-solving skills, effective communication, and adaptability are essential soft skills for collaborating within multidisciplinary teams and navigating complex projects. These competencies ensure successful project delivery, foster innovation, and uphold Leidos' reputation for technical excellence in mission-critical sectors.

What can I expect in terms of career development and advancement opportunities at Leidos?

At Leidos, employees benefit from a culture that values continuous learning and internal mobility. The company offers a variety of training programs, mentorship opportunities, and tuition assistance to support professional growth. Team members are encouraged to pursue new roles and special projects within the organization, which allows for advancement through both technical and management career paths. Regular performance reviews and clear goal-setting further help employees map out their desired career trajectories.

What is the difference between Leidos vs Network Engineer?

CriteriaLeidosNetwork Engineer
Required CertificationsSecurity+; Cisco CCNA; CompTIA Network+CCNA; CCNP; CompTIA Network+
Work EnvironmentGovernment and defense contracting; corporate ITCorporate IT departments; telecommunications companies; government agencies
Employer & Industry UsagePrimarily government and defense sectorsPrivate sector and some government agencies
Common Search & ComparisonYesYes

Leidos and Network Engineer roles share similar certifications like CCNA and CompTIA Network+. While Leidos focuses on government and defense projects, Network Engineers work across various industries including telecommunications and corporate IT. Both roles require strong networking skills, but Leidos positions often involve security clearances and specialized government contracts, whereas Network Engineers may work in broader private sector environments.

What kind of work do Leidos do?

Leidos is a technology and engineering company that provides solutions in areas such as defense, intelligence, civil, and health markets. Employees often work on projects involving systems integration, cybersecurity, data analysis, and software development, frequently using tools like cloud platforms and programming languages. The work environment typically requires security clearances and adherence to government standards.

What cities are hiring for Leidos jobs?

Cities with the most Leidos job openings:

What states have the most Leidos jobs?

States with the most job openings for Leidos jobs include:

Leidos jobs near you
Infographic showing various Leidos job openings in the United States as of August 2026, with employment types broken down into 98% Full Time, and 2% Part Time. Highlights an 93% Physical, 3% Hybrid, and 4% Remote job distribution.

Firewall Engineer at Leidos Washington DC

Feitong Buke

Washington, DC • On-site

$126.10 - $227.95/hr

Other

Medical, Retirement, PTO

Posted 7 days ago

Job description

Firewall Engineer – Leidos, Washington DC

Leidos' Digital Modernization sector is seeking a Senior Firewall Engineer to support the GSM-O effort. This position is located at the Pentagon and is 100% on-site. This role requires an engineer who can design, implement, and manage complex firewall solutions to ensure the security and integrity of network infrastructure. The ideal candidate has experience with firewall technologies including Cisco ASA, Juniper SRX, and Palo Alto, as well as a strong background in security networking.

Primary Responsibilities
  • Design, implement, and manage firewall solutions using Cisco ASA/Firepower, Juniper SRX, and Palo Alto.
  • Monitor firewall performance and security logs to identify and mitigate potential threats.
  • Develop and enforce network security policies and procedures.
  • Perform system audits to ensure compliance with standards and regulations.
  • Collaborate with other IT, Security and Network teams to integrate firewall solutions.
  • Troubleshoot and resolve network and firewall-related issues promptly and document within ticket systems.
  • Maintain and update firewall configurations (security policies/firewall ACLs as approved by Change Management).
Required Clearance and Certifications
  • Must have, at minimum, an active DoD Secret security clearance with ability to obtain TS/SCI. An active TS/SCI is preferred.
  • Must have DoD 8570 IAT II or higher certification (Security+ CE or equivalent) prior to start.
  • Must have a Juniper, Cisco, or Palo Alto certification prior to start.
Required Qualifications
  • BS degree and 12+ years of directly relevant experience. Additional military or relevant work experience may be considered lieu of a degree.
  • 3+ years of Firewall experience within the DoD environment.
  • Demonstrated knowledge of Implementation of Perimeter and Internal Firewalls (both physical and virtual contexts).
  • Demonstrated advanced experience in managing standard baseline configuration across numerous firewalls.
  • Demonstrated advanced experience in evaluating rules to ensure maximum security while minimizing redundancy in rules.
Pay Range

Pay Range $126,100.00 - $227,950.00. The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.

Benefits

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

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