Senior Network Engineer

Centene Corporation

1d • $87,000 - $161,300 • Remote

About The Position

You could be the one who changes everything for our 28 million members by using technology to improve health outcomes around the world. As a diversified, national organization, Centene's technology professionals have access to competitive benefits including a fresh perspective on workplace flexibility. Position Purpose: The Senior Engineer – Certificates & Load Balancing is responsible for ensuring the stability, security, and reliability of enterprise certificate services and Citrix NetScaler load balancing environments. This role exists to prevent certificate-related outages, strengthen operational governance, and provide senior-level technical support for SSL/TLS and application delivery services. The position bridges network, security, and application teams to deliver predictable certificate lifecycle management and resilient load-balanced platforms, shifting the organization from reactive issue response to proactive service assurance. Certificate Operations: Monitoring certificate expiration alerts and proactively engaging application teams Issuing, renewing, and validating certificates (internal and external) Troubleshooting SSL/TLS handshake failures, certificate chain issues, or trust errors Reviewing CSRs for accuracy (SANs, key sizes, usage types, etc.) Validating successful certificate binding post-change (browser, OpenSSL, CLI validation) Investigating certificate-related incidents or production escalations NetScaler / Load Balancer Support: Installing and binding certificates to NetScaler virtual servers (VLSB) Managing GSLB configurations and SSL profiles Updating SNIPs, VIPs, service groups, and monitors as needed Supporting load balancer changes during maintenance windows Troubleshooting Layer 4–7 connectivity or persistence issues Operational Governance & Improvement: Participating in change management and validation processes Running reports or dashboards on expiring certificates and compliance posture Partnering with application teams to improve certificate hygiene and ownership Documenting repeatable procedures and improving runbooks Identifying automation opportunities to reduce manual certificate work Escalation & Advisory: Acting as an escalation point for complex SSL or load balancing issues Advising teams on certificate standards, cipher policies, and secure configurations Supporting audits or security reviews related to encryption and PKI Performs other duties as assigned Complies with all policies and standards

Requirements

• A Bachelor's degree in a quantitative or business field (e.g., statistics, mathematics, engineering, computer science) and Requires 4 – 6 years of related experience. Or equivalent experience acquired through accomplishments of applicable knowledge, duties, scope and skill reflective of the level of this position.
• Certificate Lifecycle Management (PKI / SSL / TLS) - Deep understanding of certificate issuance, renewal, replacement, revocation, and validation across enterprise environments.
• Citrix NetScaler / ADC Expertise - Hands-on experience supporting and troubleshooting NetScaler environments, including GSLB, VLSB (vServers), SNIPs, VIPs, service groups, and SSL profiles.
• SSL/TLS Configuration & Troubleshooting - Ability to diagnose certificate chain issues, cipher mismatches, handshake failures, and trust problems across load balancers, web servers, and applications.
• Load Balancing & Application Delivery Concepts - Strong grasp of Layer 4–7 traffic flow, health monitoring, persistence, and high-availability design.
• Operational Support & Change Management - Experience supporting production environments, participating in maintenance windows, and validating changes with minimal service impact.
• Intermediate - Seeks to acquire knowledge in area of specialty
• Intermediate - Ability to identify basic problems and procedural irregularities, collect data, establish facts, and draw valid conclusions
• Intermediate - Ability to work independently
• Intermediate - Demonstrated analytical skills
• Intermediate - Demonstrated project management skills
• Intermediate - Demonstrates a high level of accuracy, even under pressure
• Intermediate - Demonstrates excellent judgment and decision making skills

Nice To Haves

• Automation & Tooling (Preferred) - Familiarity with scripting, APIs, or automation frameworks to support certificate workflows, reporting, or operational efficiency.

Responsibilities

• Monitoring certificate expiration alerts and proactively engaging application teams
• Issuing, renewing, and validating certificates (internal and external)
• Troubleshooting SSL/TLS handshake failures, certificate chain issues, or trust errors
• Reviewing CSRs for accuracy (SANs, key sizes, usage types, etc.)
• Validating successful certificate binding post-change (browser, OpenSSL, CLI validation)
• Investigating certificate-related incidents or production escalations
• Installing and binding certificates to NetScaler virtual servers (VLSB)
• Managing GSLB configurations and SSL profiles
• Updating SNIPs, VIPs, service groups, and monitors as needed
• Supporting load balancer changes during maintenance windows
• Troubleshooting Layer 4–7 connectivity or persistence issues
• Participating in change management and validation processes
• Running reports or dashboards on expiring certificates and compliance posture
• Partnering with application teams to improve certificate hygiene and ownership
• Documenting repeatable procedures and improving runbooks
• Identifying automation opportunities to reduce manual certificate work
• Acting as an escalation point for complex SSL or load balancing issues
• Advising teams on certificate standards, cipher policies, and secure configurations
• Supporting audits or security reviews related to encryption and PKI
• Performs other duties as assigned
• Complies with all policies and standards

Benefits

• Centene offers a comprehensive benefits package including: competitive pay, health insurance, 401K and stock purchase plans, tuition reimbursement, paid time off plus holidays, and a flexible approach to work with remote, hybrid, field or office work schedules.
• Actual pay will be adjusted based on an individual's skills, experience, education, and other job-related factors permitted by law, including full-time or part-time status.
• Total compensation may also include additional forms of incentives.
• Benefits may be subject to program eligibility.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level