Senior Network Security Engineer

Minimum eight years of experience in a Network Security Engineering role implementing and maintaining Network Access Control technologies (Cisco IDS / IPS, ISE, Forescout, Cisco AnyConnect, etc.)

Experience with mid-to-large-scale implementations of Network Access Control technologies

Network Access Control (NAC) :

Cisco ISE, Forescout, Cisco ACS, RSA, Cisco AnyConnect

IDS / IPS technologies (Cisco IDS / IPS, Gigamon)

LAN Technologies :

Cisco Switches and Cisco ASA Firewalls

VLANs, MPLS, 802.1X configuration

Certifications : CCNP (ActivE)

• Description

How a Network Security Engineer will Make an Impact :

Collaborate in the Architecture and Administration of LAN technologies of Cisco Switches and Cisco ASA Firewalls.

Collaborate in the architecture and Administration of Network Access Control systems including but not limited Cisco ISE, Forescout, Cisco ACS, RSA, Cisco AnyConnect, Gigamon, IDS / IPS.

Troubleshoot and problem solve a wide variety of client / user issues and act as an escalation point for LAN / NAC related issues

Work closely with other IT functional teams to ensure cohesive support and strategies across the IT organization

Support the development of project schedules and execution as authorized

Maintain relationships with key Third-Party software / hardware vendors to provide support to the infrastructure as needed.

What You'll Need to Succeed :

Education :

BS degree in Computer Science, Information Systems or equivalent.

Required Experience :

Minimum eight years of experience in a Network Security Engineering role implementing and maintaining Network Access Control technologies (Cisco IDS / IPS, ISE, Forescout, Cisco AnyConnect, etc.)

Experience with mid-to-large-scale implementations of Network Access Control technologies

Required Technical Skills :

Cisco CCNA / CCNA / Security, CCNP / CCNP Security, or CCIE certifications

Cisco SISE certification

Security Clearance Level :

Must be able to obtain an NIH public trust

Required Skills and Abilities :

Excellent written and verbal communication skills.

Ability to explain and elaborate on technical details.

Ability to lead teams.

Ability to multitask and prioritize work in a fast-paced IT environment.

Preferred Skills :

Experience with Cisco wireless LAN controllers.

Experience with Forescout security products.

Experience configuring Cisco ASAs and switches.

Experience configuring 802.1X.

Experience configuring and implementing network segmentation including VLANs and MPLS.

Experience with multiple end-system operating systems including Windows, Linux, Mac OS, and Apple IOS.

Experience with ServiceNow and Visio is an asset

• Additional Skills & Qualifications

What is the mission of the program / contract? To operate and manage the network infrastructure for the NIH scientific and administrative communities in an effective and reliable manner.

What will a typical workday look like for the Contractor? Is this a team setting?

Provide daily support for tickets : service requests, incidents, problems, and tasks

Execute tasks to support projects

Provide regular updates to tickets

Produce daily / weekly status reports

Develop and execute change request plans

Identify appropriate security access control solutions to satisfy customer business objectives / requirements

Develop High-Level Designs (HLDs) and Low-Level Designs (LLDs)

Document physical and logical topologies for security solutions

Develop High-Level task lists / Work Breakdown Structure (WBS)

Determine the Level of Effort (LOE) for service / solutions

Develop Bills of Materials (BOMs) and participate in the decision-making process for the acquisition of current / new technologies for the customer environment

Document solution risks, issues and mitigation strategies

Create and maintain network diagrams

Provide Subject Matter Expertise for network security technologies

Meet with management and the customer to present and discuss design and implementation efforts

• Experience Level

Expert Level

• Job Type & Location

This is a Contract to Hire position based out of Bethesda, MD.

• Pay and Benefits

The pay range for this position is $70.00 - $81.00 / 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 Bethesda,MD.

• Application Deadline

This position is anticipated to close on Nov 18, 2025.

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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.