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Job Description

Role: Firewall Admin

TEKsystems has an immediate opening for a Cisco FTD/Firepower (FMC) Firewall Administrator/Engineer to provide Design and Engineering Operation and Maintenance support for Firewall systems on the classified and unclassified Research, Development, Test and Evaluation (RDT&E) networks at Dahlgren, VA. As the Firewall Administrator, you will design, implement and maintain support of the network and security infrastructure, use best practices and knowledge of current technologies and their potential application to the RDT&E Environment, and will assist in assessing the security risk of proposed Firewall modifications.

Responsibilities

Essential functions will include:

• Manage firewall and network security systems by establishing and enforcing approved policies

• Analyze network security requirements and implement perimeter security changes

• Utilizing industry best practices for security, disaster recovery, business continuity, change control, the engineer will design, configure, manage and troubleshoot a variety of network firewall technologies

• Serve as a subject matter expert in coordinating and troubleshooting with customers, other infrastructure support activities and business units

• Develop network documentation of security infrastructure

• Monitor network performance and implement performance tuning as necessary

• Responsible for installing software, applying patches, managing file systems, and monitoring performance of Firewall systems

• Performs data backups and restoration of managed systems

• Assist in the certification and accreditation process for managed systems and networks

• Install and deploy of new Firewall hardware and software

• Support IDS/IPS functionality

• Review daily logs for managed systems and report on unusual activity

• Participate in the development and maintenance of Standard Operating Procedures (SOPs) associated with managed systems and applications

• Collaborate with IT staff on projects and initiatives

• Provide input for a monthly progress and status report

Qualifications

• Prefer a minimum of six (6) years of relevant experience or equivalent combination of education and experience

• High School Diploma required. Bachelors Degree preferred.

• Must currently hold a DoD 8570 Information Assurance Technical Level II certification

• Position requires a strong understanding of Firewall functions and operations (proxy, proxy-arp, NAT, stateful packet inspection, circuit layer gateways, and application layer gateway)

• Experience with Next Generation and web application firewalls

• Requires shell scripting experience and basic knowledge of various types of Operating Systems including Microsoft Windows, Linux and Unix and their network inter-communications

• Ideal candidate will have experience with TCP/IP protocols and the OSI model and how they apply to production systems and networks

• Intermediate to advanced level skills in Microsoft Office software suite - Word, Excel, Outlook, PowerPoint

• Ability to communicate effectively with all levels of employees and outside contacts

• Strong interpersonal skills and good judgment with the ability to work alone or as part of a team

Desired Skills:

• Firewall engineering experience with Cisco FTD or McAfee firewalls

• Use of F5 Web Application Firewalls (WAF), Configure SSL offloading, secure remote access, High Availability / Redundancy configurations and network analysis tools

• IPv6 network and application implementations

• Familiarity with Department of Defense security guidelines and policies, highly desired

Skills

Firewall, Cisco firewalls, Palo alto

Additional Skills & Qualifications

Good personality

Experience Level

Intermediate Level

Pay and Benefits

The pay range for this position is $45.00 - $60.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a fully onsite position in Springfield,VA.

Application Deadline

This position is anticipated to close on Aug 12, 2025.

h4>About TEKsystems:

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.