Senior Cyber Security Lead

3Core Systems , Inc•Tampa, FL

13d•Hybrid

About The Position

The successful candidate will be a strong individual contributor who brings both technical depth in network security and the initiative to lead — driving the patch management and vulnerability remediation lifecycle from triage through resolution, and driving critical elements of our cybersecurity project initiatives. Ideally, this candidate will lead our cybersecurity. They will also serve as a reliable partner to the Lead Engineer on architecture, tooling, and incident response. This role bridges the gap between strategic security direction and execution on the ground.

Requirements

Strong troubleshooting and analytical mindset
Ability to take ownership and drive tasks without constant direction
Clear technical documentation and communication
Ability to follow structured change control processes
Strong coordination skills across teams (SOC, infrastructure, networking)
Ability to operate independently with escalation awareness
Willingness to support after-hours patching or incident response
Excellent communication and stakeholder management skills
Ability to step in as a backup or supplemental resource for IT networking needs.
Proficiency with AI tools to enhance automation and team productivity.
Hybrid schedule, currently requiring 3 days per week in the Tampa, FL office.
Availability to participate in on-call and respond to high-severity incidents outside of normal business hours.
For the permanent role, candidate must have valid U.S. passport with ability to travel to international sites, up to a maximum of 15% of the time.
Bachelor’s degree in Information Technology, Computer Science, Cybersecurity, or related field preferred; Associate’s degree or equivalent experience considered
CompTIA Security+ required (or equivalent)
7 years of hands-on experience in network engineering, cybersecurity, or a hybrid role with demonstrated growth in scope and responsibility

Nice To Haves

OT Environment expertise (preferred)
CompTIA Network+ or Cisco CCST or CCNA (preferred)
Cisco CyberOps, CCNP Security, or equivalent (preferred)

Responsibilities

Own and drive vulnerability scanning, triage, and remediation tracking
Own and lead cybersecurity incident investigations end-to-end
Act as primary point of contact for incident response and escalations
Develop, maintain, and improve incident response runbooks and procedures
Patch management across servers, endpoints, network devices, and OT assets
Security monitoring coordination, partner with external SOC for alerting, triage, and response workflows
Security hygiene enforcement and compliance tracking
Access control validation and basic firewall / ACL review
Understanding of cybersecurity frameworks (NIST, CIS, MITRE basics)
Endpoint security and system hardening concepts
Strong documentation of security operations, incidents, and remediation efforts
Drive IT/OT security hardening
Maintain compliance frameworks and audit readiness
Windows administration fundamentals
Active Directory and identity-related concepts
Patch management processes and lifecycle
Zero Trust fundamentals (Zscaler ZPA preferred)
Basic cloud exposure (OCI/AWS hygiene, backups, DR concepts)
Basic TCP/IP, IPv4, DNS, DHCP, IAM, VPN knowledge
Understanding of routing and switching fundamentals
Cisco Catalyst switch familiarity (CLI preferred)
Ability to troubleshoot connectivity issues (support role only)
Basic firewall and network segmentation concepts
Manage vendor relationships and coordinate internal and external resources for timely project execution.
Provide executive-level reporting on IT cybersecurity project performance, deliverables and strategic initiatives.
Exposure to SCADA / industrial networks
Familiarity with Rockwell / Stratix environments
Understanding of patching constraints in OT environments