Senior IT Security Engineer

Senior IT Security Engineer

Hybrid – Onsite in Tampa, FL (33607) 4 days / week

12-Month Contract with Potential for Extensions or Conversion

We are seeking an experienced Senior IT Security Engineer with deep hands-on expertise in Public Key Infrastructure (PKI) and Microsoft Certificate Management. This role will serve as the primary owner of the enterprise certificate services ecosystem, ensuring the security, reliability, and compliance of the organization’s digital identity infrastructure.

This engineer will architect, deploy, maintain, and optimize certificate management systems with an emphasis on Microsoft Active Directory Certificate Services (ADCS) and enterprise-wide certificate lifecycle automation. This is an engineering-level role—far beyond day-to-day certificate administration—requiring strong design, troubleshooting, security, and operational leadership skills.

Key Responsibilities

PKI Architecture & Engineering

• Design, deploy, and maintain enterprise PKI environments, including two-tier PKI architecture, disaster recovery planning, and long-term platform roadmaps.
• Install, configure, and manage Active Directory Certificate Services (ADCS), Network Device Enrollment Services (NDES), and supporting PKI components.
• Integrate certificate management with Active Directory, Group Policy, and domain architecture to ensure automated, secure certificate enrollment.
• Engineer certificate workflows for servers, endpoints, network devices, applications, and identity systems.

Certificate Lifecycle Management

Automation, Monitoring & Operations

Security, Compliance & Documentation

Required Qualifications

Preferred Qualifications

Role Context

This position sits closely with the Security Team and plays a key role in maintaining secure authentication and encryption across the enterprise. After the initial architecture and deployment work, the role transitions into ongoing monitoring, documentation, research, and lifecycle planning for future upgrades and platform changes.