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Freelance Network Firewall Engineer Jobs (NOW HIRING)

Firewall Engineer

Linthicum, MD · On-site

$47.25 - $63.25/hr

Firewall Engineer Location: Linthicum, MD Hybrid The interview is in-person, so kindly share ... Perform network forensics and incident analysis in response to security events, escalating ...

Firewall Engineer

Evanston, IL · Remote

$49 - $65.50/hr

Firewall Engineer Location: Evanston, IL 60201/Remote * Firewall Administration * Deploy, configure ... Generate reports on network performance, security posture, and compliance status.

Firewall Engineer

Tampa, FL · On-site

$45.25 - $60.50/hr

RIT Solutions, Inc. is seeking a Firewall Engineer to design and implement firewall solutions for their network infrastructure. The role involves maintaining and optimizing firewall components, as ...

Firewall Engineer

Alexandria, VA · On-site

$48.25 - $64.75/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Overview We are seeking an experienced Firewall Engineer to support mission-critical network security operations within a high-tempo DoD environment. This role focuses on firewall engineering, Palo ...

Designs and implements network security solutions, including firewalls, VPNs, and other security ... Provides network solution engineering efforts to plan, design, configure, troubleshoot, implement ...

Firewall Engineer

Chandler, AZ · On-site

$47 - $63/hr

* Client is looking for a skilled and driven Senior Firewall Engineer to join client's team and contribute to the design, deployment, and ongoing support of secure, scalable network infrastructures.

Firewall Engineer

Alexandria, VA · On-site

$48.25 - $64.75/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Overview We are seeking an experienced Firewall Engineer to support mission-critical network security operations within a high-tempo Department of Defense environment. This role focuses on the ...

Network Engineer Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance ... SAIC is seeking a Senior Firewall Engineer to support DCSA for an ONSITE position out of Quantico ...

... network security solutions, including firewalls, VPNs, and other security technologies. • ... engineering efforts to plan, design, configure, troubleshoot, implement, enhance, optimize and ...

Firewall Engineer

Alexandria, VA

$180K - $210K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Overview We are seeking an experienced Firewall Engineer to support mission-critical network security operations within a high-tempo Department of Defense environment. This role focuses on the ...

Showing results 21-40

Freelance Network Firewall Engineer information

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$32

$55

$76

How much do freelance network firewall engineer jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for freelance network firewall engineer in the United States is $55.61, according to ZipRecruiter salary data. Most workers in this role earn between $45.67 and $66.11 per hour, depending on experience, location, and employer.

What is the difference between Freelance Network Firewall Engineer vs Network Security Analyst?

AspectFreelance Network Firewall EngineerNetwork Security Analyst
CertificationsCCNA, CISSP, CompTIA Security+CISSP, CISA, CompTIA Security+
Work EnvironmentIndependent, project-based, remote or on-siteFull-time, in-house or remote, corporate setting
Employer & IndustryClients across various industries, consulting firmsOrganizations' security teams, corporations

While both roles focus on network security, a Freelance Network Firewall Engineer specializes in designing, implementing, and managing firewalls for clients on a project basis. In contrast, a Network Security Analyst typically works within an organization to monitor, analyze, and respond to security threats regularly. The freelance role offers flexibility and diverse projects, whereas the analyst role provides ongoing security management within a company.

More about Freelance Network Firewall Engineer jobs

What cities are hiring for Freelance Network Firewall Engineer jobs?

Cities with the most Freelance Network Firewall Engineer job openings:

What are the most commonly searched types of Network Firewall Engineer jobs?

The most popular types of Network Firewall Engineer jobs are:

What states have the most Freelance Network Firewall Engineer jobs?

States with the most job openings for Freelance Network Firewall Engineer jobs include:

Infographic showing various Freelance Network Firewall Engineer job openings in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 75% In-person, and 25% Hybrid job distribution, with an average salary of $115,678 per year, or $55.6 per hour.

USMC Cybersecurity Network Engineer/Firewall

Terrestris LLC

Jacksonville, NC • On-site

Full-time

Medical, Retirement, PTO

Re-posted yesterday


Job description

Are you looking for a Challenge? Looking for an innovative organization and the opportunity to learn and grow professionally? We can help! We are seeking a Cybersecurity Network Engineer/Firewall for the Facilities Related Control Systems (FRCS) Support Services contract. This project will provide knowledge, training, and support to assist the U.S. Marine Corps Public Works Department in the areas of FRCS, Cybersecurity, Assessment and Authorization (A&A), Authority To Operate/Authority to Connect (ATO/ATC) package upkeep and maintenance, USMC Cloud and Cloud-Based A&A support, and data center support/administration for the FRCS virtualized environment, servers, and associated applications. This is a full-time, on-site position at Marine Corps Base (MCB) Camp Lejeune, Marine Corps Air Station (MCAS) New River, and satellite locations near Camp Lejeune, working 40 hours per week, Monday through Friday, within normal business hours (7:00 am to 5:00 pm).
I've never heard of Terrestris. What do you do?
At Terrestris, we leverage technology to create better mission outcomes through better human performance. We form strong client and team relationships through transparency and strive to create an environment where our team can let their excellence shine through. By finding, developing, and incorporating new ideas, we provide memorable services. Rooted in the USMC values of honor, courage, and commitment, Terrestris seeks to deliver extraordinary value to the American people by helping the Government become more efficient and effective.
So, what will the Cybersecurity Network Engineer/Firewall at Terrestris do?
The Cybersecurity Network Engineer/Firewall will be a key billet for the Facilities Related Control Systems (FRCS) Support Services contract. This position secures, configures, and manages firewalls, VPNs, and ICS/OT networks ensuring compliant, resilient, mission-ready FRCS communications infrastructure. This position is contingent upon contract award.
What does a typical day look like for a Cybersecurity Network Engineer/Firewall?
You will:
  • Configure, administer, and maintain Palo Alto firewalls, IPSec VPNs, and secure network communications supporting FRCS and ICS/OT environments across enterprise and remote facilities.
  • Implement, harden, and validate Linux (CentOS), Raspberry Pi, and networked devices by applying DISA STIGs, SRGs, FIPS 140-2 requirements, and approved cybersecurity baselines.
  • Design, deploy, and manage Public Key Infrastructure (PKI), digital certificates, encryption keys, and Hub-and-Spoke IPSec VPN tunnels to ensure secure authentication and encrypted communications.
  • Monitor firewall operations, network traffic, security events, and system vulnerabilities; investigate incidents, implement corrective actions, and maintain continuous compliance with DoD, DoN, USMC, and RMF security requirements.
  • Develop and maintain secure configuration guides, firewall rulesets, standard operating procedures, and technical documentation supporting ICS/OT Authority to Operate (ATO/ATC) accreditation and lifecycle management.
  • Collaborate with systems administrators, cybersecurity architects, and control systems engineers to integrate secure network solutions, automate security tasks through scripting, support enterprise databases and reporting tools, and troubleshoot complex FRCS network infrastructure.

What qualifications do you look for?
You might be the professional we're looking for if you have:
  • A current Secret clearance is required.
  • Authorization to permanently work in the United States without sponsorship.
  • Oral and written English fluency.
  • State's Driver's License.
  • Demonstrated knowledge in securing multiple operating systems and other networked devices using appropriate DISA STIGs and Structured Requirements Guide (SRG).
  • Experience with creating and maintaining PKI (Public Key Infrastructure) to be used for secure IPSec Virtual Private Network (VPN) connections.
  • Experience with Palo Alto firewalls in an ICS/OT environment.
  • Expert in Raspberry Pi security and configuration.
  • Knowledgeable of FIPS 140-2 IPSec configurations including encryption types, key generation/storage, and configuring tunnels in a Hub-and-Spoke architecture.
  • Experience with building, securing, and accrediting Linux servers and devices running CENTOS.
  • Expertise writing policies and procedures for the secure configuration, installation, and management of firewalls and Encrypt/Decrypt devices on the MCEN in support of the ICS/OT ATO/ATC.
  • Professional Certifications: CompTIA Security+ or CompTIA CASP or Certified Information System Security Professional (CISSP) ICS-Virtual Learning Portal (VLP) Certificate 100W.

We will be extra impressed if you have:
  • SEL certificates or training.
  • Experience programming/scripting - Python, SQL, Bash, Java.
  • Databases - SQL Server, PostgreSQL, NoSQL, MongoDB.
  • Power BI expertise.
  • Advanced Microsoft Excel expertise.
  • AutoCAD expertise.
  • Sec+ expertise.
  • Net+ expertise.

What kind of benefits does Terrestris Offer?
We offer outstanding benefits including health, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, and work-life programs. Our award programs acknowledge employees for exceptional performance and superior demonstration of our service standards. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in our benefit programs. Other offerings may be provided for employees not within this category.
Terrestris is an Equal Opportunity Employer (EOE). Qualified applicants are considered for employment without regard to age, race, color, religion, sex, national origin, sexual orientation, disability, or veteran status. Applicants must be authorized to work in the U.S.
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