Senior Network Security Engineer/Architect

**This position is 4x per week on-site and can sit in the following locations:
Top Skills' Details
We need someone who is a high-level engineer moving into design and architecture or someone who has done some architecture all within Network Access Control and Segmentation (Cisco ISE).
Description
Network Security SME
Network Access Control (NAC) and Cisco ISE segmentation
Platform Principal - more architecture, strategy, planning, design work
Thorough engineer and technical background
Someone who is looking to take next step into architectural role
Still hands on engineering work, technical changes, can also do design, build roadmaps and present roadmaps, work with vendors
Network Access Controls, Cisco ISE segmentation
We have a new tool Elisity- in the midst of bringing them in, additional tool for segmentation - similar to Cisco ISE, newer vendor, so someone with that would be amazing but it is newer so probably harder to find
Help build and deploy tool over next year
Still a lot of work in Cisco ISE

Job Description
Platform Principal Engineer - Infrastructure Security Services
Job Description Summary
The Platform Principal Engineer is responsible for developing and driving technical solution roadmaps within the Infrastructure Security Services domain. They leverage extensive training, certifications and experience to provide critical thought in the firewall, network access control (NAC) and network segmentation space. The successful candidate will be an effective communicator who can work across silos to tailor secure solutions that bridge the needs of the Business, Risk and Cyber Security.
Job Description
The Platform Principal Engineer is a member of the Infrastructure Security Services Team supporting our client's Enterprise Network Organization. This team is responsible for all research, project design, and initial implementation of security technologies as well as ongoing SME level support and escalations. This role specifically will focus on network security technologies related to network access control (NAC) and firewall infrastructure deployed in alignment to NIST SP 800-207 Zero Trust Architecture, PCI, SOX, CIS and FFIEC.

Duties and Responsibilities:
o Expertise in Network Access Control (NAC) and Segmentation solutions such as Cisco ISE, Elisity, Forescout, Fortinet or Arista AGNI.
o Fundamental knowledge of 802.1x, TrustSec and Security Group Tags (SGT) deployed in a distributed SD-WAN network to secure and segment IoT.
o Build and enhance network security solutions with a "secure and automate first" mindset that will scale easily with growth.
o Leverage Infrastructure as Code (IaC) concepts to manage configuration baselines via Jinja2/YAML and Ansible.
o Participate in an on-call rotation.
o Shares long-term technical and business vision to large audiences on a regular basis.
o Partners with Enterprise Architecture for collection of business and technical requirements to make decisions on future platforms or solutions.
o Maintains and develops professional and technical skillsets while keeping abreast of current and emerging technologies and how they drive value for our client
o Builds high level and low-level design (HLD, LLD) drawings to present in Visio, PowerPoint, Word or other media.

Basic Qualifications:
o Bachelor's degree in a STEM or Cybersecurity field.
o Minimum 7 years of Infrastructure Solution Delivery experience with additional field experience on delivering infrastructure solutions in an enterprise-wide environment with a focus on security.

Preferred Qualifications:
o Strong leadership, verbal, written, organizational, and interpersonal skills.
o Previous Financial Services experience or knowledge.
o Master's degree in Cybersecurity or STEM field.
o Certifications such as CISSP, PCNSA/PCNSE, CCNP, CEH, Security+
o Proven track record of successfully designing and building network security solutions from the ground up.
Skills
Network security, network access control, NAC, Segmentation, Cisco ISE, Elisity
Top Skills Details
Network security,network access control,NAC,Segmentation,Cisco ISE
Experience Level
Expert Level
Job Type & Location
This is a Contract to Hire position based out of Columbus, OH.
Pay and Benefits
The pay range for this position is $60.00 - $75.00/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 Columbus,OH.
Application Deadline
This position is anticipated to close on Jan 29, 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.