Senior Security Engineer

Insight Global is seeking a Senior Security Engineer to assist in an enterprise Tenable 1 Deployment. The focus of the role is shift to an OT environment and the senior level resource needs to be able to the platform and tooling efforts. Daily responsibilities include:
-Own and manage the Tenable 1 platform across the U.S. environment as the primary SME
-Lead TVM (Threat & Vulnerability Management) scanning engineering efforts, including:

-Designing and optimizing scan configurations
-Managing exclusions and tuning scan performance
Support and enhance Nessus deployments across both IT and OT environments


-Work closely with the TVM team to:
Refine scanning strategies
Improve data accuracy and coverage
Ensure proper segmentation between IT and OT assets

-Provide technical guidance and architecture recommendations for ongoing tool enhancements
-Partner with internal stakeholders to ensure effective consumption of vulnerability data by IR teams
-Continuously improve the effectiveness, scalability, and maturity of the Tenable deployment

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to HR@insightglobal.com.To learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy: https://insightglobal.com/workforce-privacy-policy/.

-Senior-level Security Engineering experience with a focus on security tooling and vulnerability management architecture
-Hands-on experience with Tenable 1 platform and Nessus, including enterprise deployment and configuration
-Mandatory experience with Nessus OT (Operational Technology module)
-Proven ability to deploy, configure, and optimize vulnerability scanning tools in large enterprise environments
-Strong experience with vulnerability management (TVM) practices, including: Scan tuning and optimization, exclusions and exception handling and asset segmentation (especially IT vs OT separation)
-Experience with security tool implementation lifecycle (design → deploy → optimize → handoff to operations/IR)
-Ability to architect scalable solutions and advise on: Asset tagging strategies, scan architecture and segmentation, data organization and reporting
-Experience with other scanning tools (e.g., Rapid7) and transitioning to Tenable ecosystems
-Strong understanding of how security tooling integrates with Incident Response (IR) workflows
-Security certification (e.g., Security+, CISSP, or equivalent)
-Ability to work independently in a lean team environment as a self-starter and tool owner
-Strong collaboration experience with cross-functional teams (TVM, IR, infrastructure)
-Background in tool standardization or migration initiatives (e.g., Rapid7 → Tenable)

-Tenable Certification (Tenable Certified Professional or similar)
-Experience with ASM (Attack Surface Management) modules within Tenable
-Prior experience supporting large-scale OT security environments

Benefit packages for this role will start on the 1st day of employment and include medical, dental, and vision insurance, as well as HSA, FSA, and DCFSA account options, and 401k retirement account access with employer matching. Employees in this role are also entitled to paid sick leave and/or other paid time off as provided by applicable law.