Firewall Engineer

Description The Team is responsible to protect the enterprise by reviewing requests for ingress and egress access. This position requires the ability to help align requests with existing policies and also the ability to help educate users on standard security methodology. This position is responsible to review requests and ensure initial compliance to network connectivity models and policies.

Job Duties /Responsibilities may include, but are not limited to:
Processing of requests for firewall rules or other Border Protection Team service offerings. The candidate will be expected to take accountability for managing multiple concurrent requests within multiple ticket queues and ensuring compliance to documented SLA agreements. Collaborate with firewall rule requesters, application teams, security engineers, enterprise architects, and other team members to ensure requests align with Caterpillar policies Review and provide counsel for requests to help align them with the enterprise direction, policies, or enhance security around a solution Understand Enterprise Security Directives, network models, and enterprise architecture patterns to ensure the alignment of a request Offer alternative solutions if a request does not align with current policies Manage the completion of own work assignments and coordinate work with other team members Work with Linux, MySQL, Perl and network tools to analyze requests Ability to work independently with minimal direction to fulfill standard service requests Ability to work with a global customer and technical audience Functional level understanding of firewall administration, network traffic collection tools, and overall understanding of network infrastructure Manage, participate in, or directly work on any additional projects, assignments, or initiatives assigned by management

Required Qualifications:

High level of initiative and accountability 2-4 years of job-related experience (network and/or IT) Strong diagnostic and analytical skills Strong communication and presentation skills Ability to work independently with minimal direction to fulfill standard service requests An understanding of networking concepts Segmentation DMZ Least privilege access control Application or Infrastructure experience

Experience with Windows, UNIX, Linux, or Networking Desired

Qualifications:

Unix/Windows or network administrative experience Application/Infrastructure architecture experience One or more of the following preferred: CISSP, CISA, GIAC GPPA or equivalent Knowledge of Perl, bash, Linux, MYSQL Understanding of information security and risk analysis processes (e.g. threat modeling) College/University degree Availability to work primarily in Peoria, IL for a term of 1 year Additional

Skills & Qualifications Strong communication and presentation skills

High level of initiative and accountability

Experience Level Intermediate Level Job Type & Location This is a Contract position based out of Nashville, TN.Pay and Benefits The pay range for this position is $40.00 - $45.00/hr individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

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)
Job Type & Location This is a Contract position based out of Nashville, TN.Final date to receive applications

This position is anticipated to close on Oct 16, 2026.Workplace Type This is a fully onsite position in Nashville,TN.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…