TEKsystems · 6 hours ago
Sr. Cyber Security Engineer
Rolla, MO
Contract
Onsite
Senior Level
$55/hr - $82/hrTEKsystems is a leading provider of business and technology services, helping clients activate ideas and solutions for transformation. They are seeking a highly skilled and experienced Senior level Security Engineer to join their cybersecurity team, focusing on managing firewalls, Azure security, Active Directory, and incident response.
Information Technology
No H1B
U.S. Citizen Only
Responsibilities
Configure, monitor, and maintain enterprise firewalls to ensure secure network traffic and prevent unauthorized access
Develop and implement firewall policies and rules based on industry standards and security best practices
Design and manage network segmentation to protect sensitive data and systems from potential threats
Troubleshoot and resolve firewall-related incidents and performance issues
Collaborate with network teams to ensure firewall and network segmentation changes are aligned with organizational goals
Collaborate with Networking and System Infrastructure team on the maintenance of data center firewall rulesets and routing related to service delivery
Manage Azure Active Directory as part of a systemwide team, ensuring secure and scalable identity and access management
Implement and manage security solutions within Microsoft Azure, including configuring security policies, managing resources, and monitoring for vulnerabilities
Ensure proper configuration and security of Active Directory services, including group policy management, permissions, and role-based access controls
Contribute to the maintenance of local custom web tools for privilege delegation capabilities of AD/Azure/other management functions
Oversee user account lifecycle management, including the provisioning, de-provisioning, and auditing of user access to systems
Ensure adherence to the principle of least privilege across all account management activities
Conduct regular reviews of user accounts and permissions to identify and mitigate potential security risks
Lead and participate in security incident response activities, including investigating, analyzing, and mitigating security incidents
Hunt for and remediate phishing campaigns, ensuring timely detection and neutralization of threats
Secure mass email campaigns to prevent misuse and ensure the integrity of organizational communications
Perform forensic analysis and root cause investigations to determine the scope and impact of security events
Develop and document incident response procedures and runbooks to improve the organization’s response capabilities
Collaborate with other teams to ensure proper escalation and resolution of security incidents
Administer vulnerability management tools, discovery, tracking, and remediation coordination
Administer Microsoft security environment including Defender, Entra, and Sentinel
Lead technical security operations including security monitoring and reporting
Monitor security systems and logs for signs of potential vulnerabilities or breaches
Develop and maintain security dashboards and reports for Senior management and stakeholders
Provide guidance on emerging threats, vulnerabilities, and best practices
Provide oversight to other teams for patch management progress/state as well as help to determine when security issues require immediate vs delayed action
Ensure that security controls comply with industry regulations, such as CUI, NSPM-33, PCI, HIPAA, NIST 800-171, NIST 800-172, ITAR, NERC, and organizational policies
Conduct regular security assessments, vulnerability scans, and penetration tests
Recommend and implement security enhancements based on risk assessments and security audits
Maintain compliance with export-controlled data regulations and work closely with law enforcement on related matters
Qualification
Required
Expertise in managing firewalls
Expertise in Azure security
Expertise in Active Directory (AD)
Account management experience
Incident response experience
Deep understanding of network and security frameworks
Proven ability to mitigate risks
Proven ability to respond to security incidents
Ability to ensure the integrity of critical systems
Ability to work on export-controlled projects
Ability to work with law enforcement
Ability to obtain a top secret security clearance
Preferred
Existing security clearance
Benefits
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)
Company
TEKsystems
At TEKsystems, they understand people. Every year they deploy over 80,000 IT professionals at 6,000 client sites across North America,
Founded in 1994
10001+ employees
Funding
Current Stage
Late StageLeadership Team
Ryan Skains
Vice President, TEKsystems Global Services
Recent News
2025-11-19
2025-10-29
Company data provided by crunchbase