Systems Administrator (Cleared)

TEKsystems; Richardson (TX); On-site; USD 55,000 - 96,000; Full time

Benefits offered by this job

Medical, dental & vision

401(k) Retirement Plan – Pre-tax and R

Life Insurance (Voluntary Life & AD&D)

Short and long-term disability

Health Spending Account (HSA)

Transportation benefits

Employee Assistance Program

Time Off/Leave (PTO, Vacation or Sick)

Job summary

TEKsystems in Richardson, TX is seeking an experienced Senior Network Security Engineer for a contract position. The role focuses on designing and deploying secure, scalable network architectures in hybrid and cloud environments, with emphasis on Zero Trust and datacenter security.

The ideal candidate has active Secret clearance, 5+ years of relevant experience (or 3+ years with an advanced degree), and strong experience with VMware/ESXi, Linux administration, and RMF/DFARS compliance.

Qualifications

• Active Secret clearance required day 1.
• Security certifications (Sec+, CISSP, etc.)
• Typically requires a University Degree and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience.
• Experience with Networking
• Experience with Desktop Support, Server Administration, and Virtualization Technologies (VMware, ESXi)
• Experience as a Linux Systems Administration
• Experience with Compliance frameworks (RMF, DFARS)

Responsibilities

• Lead network architecture, design, development, deployment, configuration, administration, and system integration of various physical and virtual network architectures
• Virtualization administration and maintenance
• Working in cloud and hybrid enterprise environments, including datacenter network and infrastructure security, and system boundary security
• Translating business objectives and requirements into deployable Zero Trust and hybrid cloud solutions
• Developing solutions for end-to-end network automations, including network orchestration across multi-vendor and hybrid and multi-cloud infrastructure
• Provide customer with technical design support to system and software technical specifications, design, proof-of-concept prototyping, and development activities
• Provide technical direction for large-scale network engineering projects, including operations, performance, testing, manufacturing, cost and schedule, and training
• Contribute to technical proposal preparation and serve as a subject matter expert in non-advocate, internal and customer reviews
• Interface directly with customers to establish trusted and influential relationships
• Lead and advise engineering managers, program managers, business development managers, product line managers, and component architects
• Ensure the development and management of technical risks and develop and execute mitigation plans
• Help establish technical baselines for the team and participate in change review boards

Skills

Networking protocols

VMware

ESXi

Windows Server

Linux Systems Administration

Active Directory

Education

University Degree

Advanced Degree

Tools

VMware

ESXi

Job description

Top Skills' Details

Qualifications you must have:

• Security certifications (Sec+, CISSP, etc.)
• Active Secret clearance at a minimum.
• Typically requires a University Degree and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience.
• Experience with Networking
• Experience with Desktop Support, Server Administration, and Virtualization Technologies (VM Ware, ESXi, etc.)
• Experience as a Linux Systems Administration
• Experience with Compliance frameworks (RMF, DFARS)

Description

PLEASE NOTE

ACTIVE SECRET CLEARANCE REQUIRED DAY 1

Top Secret Clearance is great, but not a requirement

Education: STEM Degree and 5 years of prior experience, review other education and experience combinations in description

Schedule: M-F, normal office hours

Fully onsite between the Richardson and Cityline locations

Position is year with the opportunity to extend

Possible travel - 10%, domestic

Primary Responsibilities:

• Lead network architecture, design, development, deployment, configuration, administration, and system integration of various physical and virtual network architectures
• Virtualization administration and maintenance
• Working in cloud and hybrid enterprise environments, including datacenter network and infrastructure security, and system boundary security
• Translating business objectives and requirements into deployable Zero Trust and hybrid cloud solutions
• Developing solutions for end-to-end network automations, including network orchestration across multi-vendor and hybrid and multi-cloud infrastructure
• Provide customer with technical design support to system and software technical specifications, design, proof-of-concept prototyping, and development activities
• Provide technical direction for large-scale network engineering projects, including operations, performance, testing, manufacturing, cost and schedule, and training
• Contribute to technical proposal preparation and serve as a subject matter expert in non-advocate, internal and customer reviews
• Interface directly with customers to establish trusted and influential relationships
• Lead and advise engineering managers, program managers, business development managers, product line managers, and component architects
• Ensure the development and management of technical risks and develop and execute mitigation plans
• Help establish technical baselines for the team and participate in change review boards

Qualifications you must have:

• Security certifications (Sec+, CISSP, etc.)
• Active Secret clearance at a minimum.
• Typically requires a University Degree and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience.
• Experience with Networking
• Experience with Desktop Support, Server Administration, and Virtualization Technologies (VM Ware, ESXi, etc.)
• Experience as a Linux Systems Administration
• Experience with Compliance frameworks (RMF, DFARS)

Qualifications We Prefer:

• Technology certifications (Systems Administration, Cloud, etc.)
• Govt. Security Clearance (Collateral / Secret)

Skills

networking protocols, vmware, esxi, Windows, System administrator, Active directory, Windows server, Linux, Cloud, Infrastructure, network infrastructure

Top Skills Details

networking protocols,vmware,esxi

Additional Skills & Qualifications

Qualifications you must have:

• Security certifications (Sec+, CISSP, etc.)
• Active Secret clearance at a minimum.
• Typically requires a University Degree and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience.
• Experience with Networking
• Experience with Desktop Support, Server Administration, and Virtualization Technologies (VM Ware, ESXi, etc.)
• Experience as a Linux Systems Administration
• Experience with Compliance frameworks (RMF, DFARS)

Qualifications We Prefer:

• Technology certificates (Systems Administration, Cloud, etc.)
• Govt. Security Clearance (Collateral / Secret)

Experience Level

Expert Level

Job Type & Location

This is a Contract position based out of Richardson, TX.

Pay and Benefits

The pay range for this position is $40.00 - $70.00/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 fully onsite position in Richardson,TX.

Application Deadline

This position is anticipated to close on Aug 25, 2026.

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.

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.