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The Hertz Corporation Senior Firewall Engineer in Oklahoma City, Oklahoma

Job Purpose:

The Senior Network Security Engineer will be part of a Global team working on key Technology Infrastructure projects aligned with global business strategy, within agreed parameters of time. As part of a global team, you will be one of the technical leads for Network technologies, focusing on the security stack while also supporting the Hertz data centers and corporate head quarter’s network. You will be working on day-to-day operations and key infrastructure projects. Aligned with Enterprise Architecture standards, you will be working with existing and new Network technologies which add value to the global business and global technology strategy. You will ensure that service levels are maintained and continually improved, and problems with day-to-day delivery of services are minimized.

Key-result areas:

  • Responsible for operational support and maintenance of the Hertz network including performing tier 3 troubleshooting as required; working closely with Hertz NOC for global support concerns; contributing to RCA analysis for major incidents; Ensuring proper maintenance coverage for all network systems.

  • Responsible for the on-time design and delivery of Network security solutions. This includes translating network designs into site-specific configurations; providing standards-based network documentation for all completed designs; configuring standards-based network hardware, systems management software, and operating systems for all network elements; performing IP address management.

  • Responsible technical lead on network projects – Working closely with other Technology teams including Project Management Office for completion of regional and global projects; ensuring the completed infrastructure meets standard configuration, performance and availability requirements, including matching to the Enterprise and Strategic architectures; working as part of the Global Technology team to deliver the appropriate system architecture and infrastructure solutions to meet agreed business requirements; working within schedules, time estimates, and project plans for all deliverables; tracking own involvement for project milestones, identify problem areas before they impact the project.

  • Responsible for ensuring the network is built securely. Ensure mechanisms in place to identify and remediate network vulnerabilities.

  • Responsible for evaluating network performance, and capacity to ensure that the business needs are met. Maintain relationships with all relevant vendors. Ensure compliancy with all technology and application standards, including all relevant regulatory corporate compliance (PCI, SOX, HIPPA, GLBA, etc…); maintaining a service management attitude, promoting best practice throughout the IT team; ensuring Service Level Commitments are met and improvement opportunities are highlighted.

  • Responsible for providing regular communication of progress as required to management and stakeholders; ensure self-development plans are followed and training attended, when scheduled; coach new members of staff to ensure IT/ business expectations are met on a consistent basis; promoting existing and emerging technologies, to provide input on guidelines and roadmaps for future IT infrastructure developments.

Knowledge, skills and experience:

Educational Background:

Bachelor’s degree in Computer Science, Information Systems or related field, or an equivalent combination of education and work experience

Professional Experience:

Minimum 6 years of experience in Information Technology with demonstrated proficiencies in Networking and Cyber Security.


  • Firewall design, implementation, and maintenance of traditional and NextGen Firewall technologies (Cisco/Checkpoint/Fortinet)

  • VPN design and operational support

  • TCP/IP network engineering

  • Working knowledge of in the following areas: Router/Switch, SD-WAN, Wireless, Network Management

  • Experience with connectivity and security to the public cloud

  • Experience in working on a diverse portfolio of projects.

  • Experience of working according to ITIL processes, e.g. Incident Management, Change Management.

  • Knowledge and experience of quality management principles and processes.

  • Knowledge with network automation/scripting and related tools (Ansible/Terraform/Python/etc)

  • Certifications such as CCNA/CCNP/CCIE, CISSP and SANS/AWS certifications are a plus

We expect the starting salary to be around $135,000 with annual bonus and profit sharing eligibility. The actual salary will be determined based on years of relevant work experience

The Hertz Corporation operates the Hertz, Dollar Car Rental, Thrifty Car Rental brands in approximately 9,700 corporate and franchisee locations throughout North America, Europe, The Caribbean, Latin America, Africa, the Middle East, Asia, Australia and New Zealand. The Hertz Corporation is one of the largest worldwide airport general use vehicle rental companies, and the Hertz brand is one of the most recognized in the world.


At Hertz, we champion and celebrate a culture of diversity and inclusion. We take affirmative steps to promote employment and advancement opportunities. The endless variety of perspectives, experiences, skills and talents that our employees invest in their work every day represent a significant part of our culture – and our success and reputation as a company.

Individuals are encouraged to apply for positions because of the characteristics that make them unique.

EOE, including disability/veteran