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60 Mantech Security Jobs Hiring Near You

ManTech

Network Security Engineer

Chantilly, VA

$104K - $172K/yr

MANTECH seeks a motivated, career and customer-oriented Network Security Engineer to join our team in Chantilly, VA. This is an onsite position. Responsibilities include but are not limited to:

ManTech International

Security Administrator

Aiea, HI · On-site

$68K - $114K/yr

MANTECH seeks motivated, career and customer-oriented Security Administrator to join our team in Oahu Hawaii. Responsibilities include but are not limited to: * Conducts security assessments and ...

ManTech

Information Systems Security Officer

Lompoc, CA

$91K - $153K/yr

MANTECH seeks a motivated, career, and customer-oriented Information Systems Security Officer (ISSO) - I to join our team in the Vandenberg Space Force Base, CA area. In this role, you will provide ...

ManTech International

Security Specialist

Aiea, HI · On-site

$75K - $125K/yr

MANTECH seeks a driven and organized Security Specialist to join our team in Oahu, HI. This role supports delivery of critical physical, information, and supply chain security capabilities to protect ...

ManTech

Information System Security Officer

Stafford, VA · On-site

$114K - $190K/yr

MANTECH seeks a motivated, career and customer-oriented Information System Security Officer to support our contract under Marine Corps Systems Command (MCSC) out of Stafford, VA . The successful ...

ManTech International

Cloud Security Engineer

Mclean, VA · On-site

$141K - $236K/yr

MANTECH seeks a highly technical Cloud Security Engineer to join our team in Herndon, VA . Join a dedicated team of cybersecurity experts focused on enhancing the customer's cloud incident response ...

ManTech International

Cloud Security Engineer

Mclean, VA · On-site

$141K - $236K/yr

MANTECH seeks a highly technical Cloud Security Engineer to join our team in Herndon, VA . Join a dedicated team of cybersecurity experts focused on enhancing the customer's cloud incident response ...

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ManTech Jobs Information

Do workers at ManTech get paid breaks?

Yes. Most people get paid breaks.
100% of people say they get paid breaks.
Based on data from 8 people who took the Breakroom Quiz between December 2024 and June 2026.

Does ManTech pay people when they’re sick?

Sometimes. Only some people get paid when they’re sick.
50% of people say they wouldn’t get paid if they were sick but scheduled to work.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and August 2026.

At ManTech, are sick days and vacation days separate paid time off?

Only some people have separate paid time off for sick days and vacation.
50% of people say they have to use vacation days when they’re out sick.
Based on data from 12 people who took the Breakroom Quiz between June 2025 and August 2026.

Is the health insurance from ManTech affordable enough for their workers?

Most people say the health insurance costs are okay.
86% of people say the health insurance costs are okay
Based on data from 7 people who took the Breakroom Quiz between March 2025 and August 2026.

Do people get paid time off at ManTech?

Most people get paid time off work.
100% of people say they get paid time off.
Based on data from 12 people who took the Breakroom Quiz between June 2025 and August 2026.

How far ahead of time do people find out their work schedule?

Most people find out their schedule less than four weeks ahead of time.
  • 80% of people with changing schedules find out their shifts one week or less ahead of time.
  • 20% of people with changing schedules find out their shifts two weeks ahead of time.
  • 0% of people with changing schedules find out their shifts three weeks ahead of time.
  • 0% of people with changing schedules find out their shifts four weeks or more ahead of time.

Based on data from 5 people who took the Breakroom Quiz between March 2025 and March 2026.

Do workers at ManTech worry about hours?

Most people don’t worry about getting enough hours.
100% of people report they don’t worry about getting enough hours.
Based on data from 6 people who took the Breakroom Quiz between December 2024 and March 2026.

Do ManTech workers get to choose the shifts they work?

Some people don’t get to choose which shifts they work.
50% report that they don’t have enough control over which shifts they work.
Based on data from 6 people who took the Breakroom Quiz between December 2024 and March 2026.

How easy is it for ManTech workers to change shifts?

Most people find it easy to change shifts.
80% of people report that it’s easy to change shifts if they need to.
Based on data from 5 people who took the Breakroom Quiz between March 2025 and March 2026.

How easy is it to get time off at ManTech?

Most people find it easy to get time off.
100% of people report it’s easy to get time off.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and August 2026.

Do ManTech managers change schedules at the last minute?

Most managers don’t change people’s schedules at the last minute.
88% of people say their manager doesn’t change their shift schedule at the last minute.
Based on data from 8 people who took the Breakroom Quiz between December 2024 and March 2026.

Do jobs at ManTech spill into time workers aren’t paid for?

Rarely. The job doesn't usually spill into unpaid time.
25% of people report that their job takes up time that they don’t get paid for.
Based on data from 8 people who took the Breakroom Quiz between December 2024 and March 2026.

How easy is it to take sick days at ManTech?

Most people find it easy to take sick days.
100% of people report that it’s easy to take time off if they are sick.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and August 2026.

Is working at ManTech good if you’re a parent or caregiver?

Most parents and caregivers say this is a good place to work.
100% of people who care for a child or other relative report this is a good place to work.
Based on data from 7 people who took the Breakroom Quiz between December 2024 and April 2026.

Do people at ManTech feel treated with respect by their managers?

Most people feel treated with respect by their managers.
87% of people say they’re treated with respect by their managers.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people at ManTech get to take their breaks without interruption?

Most people get breaks without interruption.
79% of people report that they get to take their breaks without interruption.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and August 2026.

Is it stressful to work at ManTech?

Some people feel stressed here.
50% of people say they often feel stressed at work.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people at ManTech enjoy their jobs?

Most people enjoy their job.
80% of people report they enjoy their job.
Based on data from 10 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people at ManTech recommend working with their team?

Most people recommend working with their team.
73% of people report that they would recommend working with their immediate team to a friend.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people get enough training when they start at ManTech?

Some people didn’t get enough training when they started.
47% of people report they didn’t get enough training when they started working here.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people get support to advance at ManTech?

Only some people are given support to advance their career here.
In the last year, 38% of people report not being given support to advance their career here.
Based on data from 13 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people think ManTech’s headquarters understands what’s happening where they work?

Most people think headquarters doesn’t understand what’s happening where they work.
71% of people think that this employer’s headquarters or owners don’t have a good understanding of what’s really happening where they work.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and August 2026.

Do workers feel well informed about how ManTech is doing?

Only some people feel well informed about how the company is doing.
36% of people feel that they aren’t kept well informed about how the company is doing as a whole.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and August 2026.

What are the most popular job types at Mantech?

    What are the most popular jobs at Mantech?

    What are the most popular categories at Mantech?

    Infographic showing various Security job openings at Mantech in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution.

    Network Security Engineer

    ManTech

    Chantilly, VA

    $104K - $172K/yr

    Full-time

    Medical, Life, Retirement, PTO

    Posted 27 days ago

    Key responsibilities

    • Perform Tier II and Tier III network security engineering support and assist in designing advanced WAN, LAN, and data center solutions.

    • Monitor and configure networks using SolarWinds, Cisco Firepower FMC, and Cisco ISE to analyze network requirements and ensure infrastructure functionality.

    • Create, maintain, and interpret detailed technical network security diagrams, routing topology schemas, and hardware configuration baselines.

    ManTech rating

    8.8

    Company rating: 8.8 out of 10

    Based on 15 frontline employees who took The Breakroom Quiz

    48th of 247 rated software companies

    Job description

    Description & Requirements
    Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we've been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now-protect and innovate with MANTECH!

    MANTECH seeks a motivated, career and customer-oriented Network Security Engineer to join our team in Chantilly, VA. This is an onsite position.

    Responsibilities include but are not limited to:

    • Perform Tier II and Tier III network security engineering support, while assisting in designing advanced WAN, LAN, and data center solutions.

    • Monitor and configure networks utilizing SolarWinds, Cisco Firepower FMC, and Cisco ISE to analyze complex network requirements and ensure complete, functioning infrastructure

    • Create, maintain, and interpret highly detailed technical network security diagrams, routing topology schemas, and robust hardware configuration baselines

    • Coordinate across large internal teams, stakeholders, and Sponsor authorities to drive infrastructure agendas and successfully navigate systems engineering processes

    • Participate in all phases of the ITIL Service Lifecycle, including submitting Change Requests and maintaining security event monitoring policies

    • Evaluate current network security architectures, inventory complex routing pathways, and recommend process improvements to optimize performance and throughput

    • Deliver end-to-end functional analysis, requirements specification, cost estimation, and engineering package releases for customer production IT environments

    Minimum Qualifications:

    • High School Diploma or GED with 7+ years of progressively responsible experience in Network Security Engineering, Network Analysis, or a related technical discipline

    • Cisco Certified Network Associate (CCNA) certification, or equivalent routing/switching technical certification, ex., Juniper Networks Certified Associate - Junos (JNCIA-Junos)

    • DoD 8570IAT Level II Certification, e.g., Security+

    • DoD 8570.1 / DoD 8140.01 (IAT III Level) certification required within 6 months of hire, e.g., SecurityX

    Preferred Qualifications:

    • Bachelors degree in an engineering discipline

    • Experience using and administering SolarWinds alongside deep knowledge of Microsoft Windows Systems, HP SANs, and VMware products

    • Advanced experience managing VPNs, GRE tunnels, routing protocols (BGP E/I, OSPF), VLANs, VRFs, and configuring KGs

    • Strong familiarity with Cisco ACI, data center fabric best practices, Ansible, and Desired State Configuration (DSC)

    • Strong familiarity with Cisco Secure Firewall ( Firepower FMC)

    • Practical knowledge of BICSI standards, terminating fiber and Cat 5 cabling, as well as familiarity with NSTISSAM TEMPEST/2-95 and CNSSAM TEMPEST/01-13 guidelines

    Clearance Requirements:

    • Must have a current and active TS/SCI clearance

    Physical Requirements:

    • The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.


    The projected compensation range for this position is $104,200.00-$172,900.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.  In addition, MANTECH invests in its employees beyond just compensation.  MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

    MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
    If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.

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