ValidaTek, Inc

Network Security Engineer - Tanium

Location US-VA-Fairfax
ID 2023-10-2025
Information Technology
Position Type
Location Detail

Company Overview

At ValidaTek, we modernize and optimize IT services to solve some of the most critical challenges facing federal civilian and defense agencies. From customers to partners to top-talent employees, ValidaTek puts people first, empowering them to exceed expectations and transform government organizations. Our success starts and ends with our people, so we built a company where great people can do great things, with the resources and autonomy to make decisions that transform organizations. We operate as one team of diverse people, united by a passion for continuous growth and optimization. Our commitment to quality and performance optimization is the reason why our IT Service Projects and New Development Projects have been appraised at CMMI Maturity Level 5, positioning us as one of a handful of elite companies to receive the highest form of third-party validation.


Are you ready to shape cyber defense for clients? Are you looking for an opportunity to help design a layered defense approach to protecting data and networks from the constant onslaught of cyber-attacks? If you want to make a difference and contribute to the security and protection of your client's information and have a passion for using cyber tools, specifically Tanium, to achieve these ends, you want to join our team as a Tanium SME.


As a Tanium SME and Administrator on our security architecture, engineering, and sustainment team, you will be responsible for assessing a client's as-is security architecture and guiding the client in the design or re-design of their security implementation around Tanium, using the tool as a component of a layered security approach. You will consult on Tanium and its various roles and, as required by the client, design roles and the agency's Tanium implementation IAW industry best practices, and work with a group of talented cyber security professionals with expertise in a variety of cyber security tools. You will work individually or in a small integrated team, and may also lead a task, project, or team.


You will ensure project completion and provide guidance and direction to lower-level technicians, specialists, and managers. You will direct multiple contractor and subcontractor teams through to project completion. You will perform systems administration of cyber tool sets with a focus on Tanium and server systems connected to networks across multiple classification domains. You will provide support to developmental and operational systems including day-to-day operations, monitoring, and problem resolution for client, server, storage, and network devices. You'll configure and manage UNIX and Windows operating systems and install or load operating systems and application software as necessary. You'll actively and passively scan for vulnerabilities and misconfigurations and develop automated Tanium scripts to do the same across the client's enterprise. You'll provide Tier 2 and Tier 3 problem identification, diagnosis, and resolution of issues with Tanium or integration of Tanium with other tools.


  • 6+ years of experience as an IT systems administrator, installing and configuring cyber tools, including Tanium
  • Experience with security technologies relevant to the CDM program to include: Elastic, Logstash, Kibana (ELK - CDM Dashboard), Rapid7 Nexpose, RabbitMQ, ServiceNow, Tanium, and Tenable Security Center
  • Basic knowledge of networking, firewalls, and AWS Cloud environments;
  • Experience with Windows and Linux server
  • Ability to identify, diagnose, and resolve technical issues and problems with installed software and applications, including Tanium
  • Active DoD Secret or Top Secret clearance with the ability to obtain DHS EOD
  • HS diploma or GED and 8+ years of experience as an IT systems administrator or Bachelor's degree and 3+ years of experience as an IT systems administrator

Nice If You Have:

  • Experience with remediation, STIG compliance, and security scans, including SCCM, MECM, or ACAS
  • Experience with Risk Management Framework
  • Experience with managing AD and Group Policies
  • Active DoD 8570 IAT Level III Certification
  • Experience with working in a Security Operations Center (SOC) or Network Operations Center (NOC)
  • Knowledge of Security Information Event Management (SIEM) platforms
  • Ability to communicate effectively and collaborate across teams
  • Ability to automate tasks using Ansible, PowerShell, or Bash
  • Possession of excellent written and verbal communication skills
  • Bachelor's degree
  • Tanium Certification, including Certified Administrator, Certified Specialist Cloud Deployment, or other advanced Tanium Certification

EEO Statement

ValidaTek is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, or disability status.

Applicants who are selected for employment will be required to verify authorization to work in the United States.

Offers of employment will be contingent upon passing a post-offer background check.


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