Security Infrastructure Engineer - Splunk Admin

Description
Primary Responsibilities:
Work with government counterparts, contractors, and internal team members to deploy and manage policies, rules, and signature sets on cybersecurity capabilities
Manage high-priority tasks and outages
Maintain, develop, and improve Security Infrastructure standard operating procedures and tactics, techniques, and procedures (TTPs)
Maintain complete and current network and elevation diagrams for all managed security equipment
Coordinate and comply with applicable change control boards and corresponding processes
Advise and strategize with government and program leadership on ways to improve the security infrastructure, requiring multi-dimensional problem solving and ingenuity with impact on multiple aspects of the mission
Provide briefings to program/project leadership, government leadership, and other internal stakeholders on security infrastructure status, updates/patches, issues, and/or upgrades
Operate and maintain cybersecurity capabilities to include IDS/IPS/Netflow/SIEM/Snort/Linux/Virtualization etc
Ensure Compliance standards
Serve as a people leader for the SIMs team:
Conduct annual performance assessments to include periodic check ins.
Validate/approve time charging for both Leidos and vendor personnel.
Provide coaching/mentoring to personnel.
Develop and Execute Continual Service Improvement technical strategies to modify and enhance operational processes and impact strategic project/program goals and business results.
Skills
Security, elastic, splunk, SEIM
Required Clearance and Certifications:
Must have an ACTIVE SECRET clearance
Must have DoD 8570 IAT II or higher certification (Security+ CE or equivalent) prior to start
Must obtain a DOD-8570 CSSP Infrastructure Support certification within 6 months of start

Preferred Qualifications:
Experience with automation and orchestration frameworks (ex. Ansible, Puppet, Chef)
Deep technical understanding of core current cybersecurity technologies as well as emerging capabilities
Demonstrated understanding of the life cycle of cybersecurity threats (internal and external), attacks, attack vectors and methods of exploitation with an understanding of intrusion set TTPs
Motivated self-starter with strong written and verbal communication skills, and the ability to create complex technical reports on analytic findings
Familiarity or experience in Intelligence Driven Defense, Cyber Kill Chain methodology, and/or MITRE ATT&CK framework
Prior hands-on experience as a SOC analyst
Experience Level
Intermediate Leve
Job Type & Location
This is a Contract to Hire position based out of Alexandria, VA.
Pay and Benefits
The pay range for this position is $60.00 - $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 hybrid position in Alexandria,VA.
Application Deadline
This position is anticipated to close on Feb 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.