ValidaTek is seeking a highly skilled Senior Security Engineer to provide advanced technical expertise in securing complex enterprise IT environments. This role involves designing, implementing, and maintaining security solutions across a wide range of systems and services.
You will collaborate closely with cross-functional engineering teams—including system, platform, release, automation, and test engineers—to support the secure development, modernization, and operation of enterprise applications and infrastructure.
Key Responsibilities
- Design, build, and implement security solutions for complex enterprise IT services and applications (web, mobile, and enterprise services)
- Provide security engineering support for COTS and GOTS product integration, managed services, and IT operations
- Administer and secure core infrastructure components, including:
- Active Directory (AD)
- DNS, DHCP, and file services
- Server operating systems and backup solutions
- Antivirus and monitoring tools
- Identify, analyze, and remediate system vulnerabilities; recommend improvements for future security enhancements
- Perform network security administration and support engineering tasks as directed by the Government
- Troubleshoot and resolve system outages and major network security issues in collaboration with other teams
- Evaluate and test new security technologies within enterprise lab environments
- Develop and validate system changes in test environments prior to production deployment
- Install and integrate new security hardware and software, ensuring compatibility with existing systems and networks
- Engineer and implement security enhancements for infrastructure components such as servers, AD, DNS, and monitoring platforms
- Research emerging security technologies and assess their applicability to the enterprise
- Support long-term security planning and technology refresh initiatives
- Leverage monitoring tools to optimize system performance and security posture
- Participate in Change Advisory Board (CAB) meetings to review and support secure implementation of system changes