Network Security Engineer

*Description*
Our client is looking to add a Sr. Network Security Engineers to their Network Security Engineering team. team responsible for securing, governing, and enhancing enterprise network environments. This team is focused on building and supporting network security solutions across on-prem and cloud environments, with a strong emphasis on network access control, firewall engineering, micro-segmentation, DDoS mitigation, and security policy automation.
The ideal candidate will have a strong foundation in network engineering and a working knowledge of security engineering principles, with the ability to contribute to both operational support and strategic engineering initiatives. This role will work closely with internal security partners, cyber operations teams, and infrastructure teams to implement and maintain secure network controls across the enterprise.
*Key Responsibilities*
Network Security Engineering:
Design, implement, and support enterprise network security solutions across a complex infrastructure
Manage and enhance technologies related to:
DDoS mitigation
Network Access Control (NAC)
Firewalls and firewall policy implementation
Micro-segmentation
DNS posture management
RADIUS and related authentication/security controls
Support the deployment and maintenance of security-specific visibility and monitoring tools
Partner with internal security teams and stakeholders to manage the products and controls used to secure the network environment
Infrastructure & Platform Support
Provide engineering and operational support for network security platforms, including:
Cisco
Arista
Fortinet chassis-based firewalls
HP Aruba ClearPass
Illumio/Actimi-style micro-segmentation tools (based on environment needs)
Participate in application and infrastructure changes to ensure security policies are correctly implemented across the network
Support cloud-based security initiatives in Azure and, to a lesser extent, GCP
Security Policy & Automation:
Contribute to a Security Policy Automation Framework currently in progress, ensuring security policies are applied consistently when applications or infrastructure change
Assist with automation and infrastructure management efforts where applicable, using tools such as:
Python
Ansible
Terraform
GitHub
Bitbucket
Collaborate with engineering teams to improve repeatability, scalability, and policy consistency across the environment
Cross-Functional Partnership:
Work closely with the infrastructure and other cyber operations partners, who are key stakeholders and internal customers of the team
Support broader cyber defense efforts and maintain awareness of red team / purple team / blue team functions
Contribute to troubleshooting, incident response support, and network flow analysis as needed
Assist with network-side engineering efforts when pulled into broader infrastructure initiatives
Operational Support:
Participate in a support rotation for off-hours and weekend changes
Be available for occasional after-hours support related to production changes, incidents, or application-impacting events
Operate with a high degree of ownership and independence, with the ability to step in and take initiative without heavy oversight
*Skills*
Firewall, Network security, Cisco, Arista, Fortinet, Azure, python, ansible, terraform, devops
*Top Skills Details*
Firewall,Network security,Cisco,Arista,Fortinet,Azure
*Additional Skills & Qualifications*
Experience with micro-segmentation technologies and implementations
Familiarity with DNS security/posture management
Exposure to DDoS mitigation strategies and tools
Working knowledge of DevOps or infrastructure automation concepts and tools
Experience supporting cloud security in Azure and/or GCP
Backgr0und working with or alongside Cyber Operation and Infrastructure teams
*Experience Level*
Expert Level
*Job Type & Location*This is a Contract to Hire position based out of Cleveland, OH.
*Pay and Benefits*The pay range for this position is $60.00 - $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 hybrid position in Cleveland,OH.
*Application Deadline*This position is anticipated to close on Jun 18, 2026.

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.

*San Francisco Fair Chance Ordinance:* Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

*Massachusetts Lie Detector:* It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

*Use of Artificial Intelligence (AI):* We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.