Firewall Engineer

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.

• 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

• 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

• 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

• Strong communication and presentation skills
• High level of initiative and accountability

Experience Level

Intermediate Level

This is a Contract position based out of Nashville, TN.

The pay range for this position is $40.00 - $45.00/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
• 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)

This position is anticipated to close on Oct 16, 2026.

This is a fully onsite position in Nashville,TN.