Senior Network Security Engineer

Chicago, IL 60604

Category: Network Security Engineer Job Number: 21697

Job Description

Network Security Engineer

The Network Security Engineer's responsibilities encompass designing, deploying, and upholding the worldwide network and perimeter security framework. They collaborate closely with all departments to ensure a secure design that prioritizes reliability, performance, and supportability during implementation.

Their primary focus includes examining and executing firewall requests for both internal and external security perimeters, refining and sustaining the perimeter's effectiveness, and enhancing security configurations from a networking perspective, ensuring end-to-end data integrity.

Furthermore, they collaborate with our data center outsourcing partner to enhance their core security perimeter, ensuring alignment across core security, perimeter security, security tools, and data flows within the environment.

Key Responsibilities:

  • Develop, deploy, and uphold the third-party network security perimeter for the bank.
  • Integrate security solutions and ensure their effective functionality.
  • Evaluate and enhance both new and existing core and perimeter firewall rulesets in collaboration with the data center operator and application owners.
  • Monitor network performance and address issues promptly.
  • Work alongside other departments to conceive and execute network security projects.
  • Offer technical assistance during troubleshooting sessions.
  • Remain informed about advancements within peer teams and offer guidance to network teams.


  • Bachelor's degree in computer science or a related field
  • 5-10 years of experience as a network security engineer, ideally within the banking or financial services sector
  • Comfortable with complexity and adept at tackling intricate challenges.
  • Proficient with Cisco networking equipment and protocols
  • Thorough grasp of network security principles, encompassing firewalls, VPNs, and intrusion detection and prevention systems
  • Profound understanding of secure application and network design, enabling analysis and scrutiny of firewall rule requests.
  • Inclination towards integrating security into tasks, adhering to the concept of security by design.
  • Demonstrates a strong sense of ownership towards tasks and issues.
  • Capable of working autonomously within an established environment, respecting existing solutions and processes.
  • Exceptional troubleshooting skills and ability to thrive under pressure.

Preferred Qualifications:

  • Information Security (IS) professional certifications such as CISSP, CCSP, CEH, CISA, CISM, and CCSK
  • Extensive understanding of IT and security capabilities and procedures
  • Proficient in stakeholder management, particularly in multicultural and international settings
  • Excellent communication skills, both oral and written, with English as the primary business language and Dutch proficiency as an advantage.


**We are an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, ethnic origin, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.**




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