Mainframe Network Engineer – Secure, Scalable Infra

Travelers Canada; Hartford (CT); On-site; USD 94,000 - 156,000; Full time

Job summary

Travelers Canada is seeking a Mainframe Network Engineer to join our Enterprise Technology Solutions group. You will support a foundational infrastructure for mainframe systems, compute resources, and storage, balancing legacy stability with cloud-native modernization.

The ideal candidate has strong z/OS skills, experience with VTAM and SNA, and a track record in infrastructure engineering. This role expects collaboration across teams and a focus on security and reliability.

Qualifications

• 3 years of infrastructure engineering/systems administration experience preferred.
• Demonstrated track record of infrastructure expertise across complex systems.
• Deep proficiency in IBM z/OS and z/OS Communications Server.

Responsibilities

• Analyze, design, and implement infrastructure components across mainframe domains with high accuracy.
• Define and implement infrastructure provisioning and configuration management requirements.
• Enhance deployment workflows to improve reliability and efficiency; resolve intermediate issues.
• Configure and optimize physical, virtualized, and cloud infrastructure for high availability and performance.
• Maintain monitoring, capacity planning and incident response while ensuring security compliance.
• Collaborate with software, platform, and operations teams to align infrastructure with business needs.
• Provide guidance to Associate Engineers and contribute to standards and best practices.
• Evaluate new infrastructure technologies for modernization.

Skills

Mainframe expertise

z/OS

JCL

VTAM

TCP/IP

SNA/APPN

Automation scripting

Tools

IBM z/OS

JCL

VTAM

SNA

Job description

Travelers Canada is seeking a Mainframe Network Engineer to join our Enterprise Technology Solutions group. You will support a foundational infrastructure for mainframe systems, compute resources, and storage, balancing legacy stability with cloud-native modernization.

The ideal candidate has strong z/OS skills, experience with VTAM and SNA, and a track record in infrastructure engineering. This role expects collaboration across teams and a focus on security and reliability.