Mainframe Network Engineer

Travelers

CT - Hartford, USFull-time$94k2026-10-01 → 2026-11-10

No visa sponsorship

Core

Design, implement, and maintain mainframe network infrastructure and connectivity for enterprise business operations.

Role type

Senior IC Mainframe Network Engineer

Builds

Resilient, secure, and scalable mainframe network environments enabling system interoperability

Domain

Insurance / Mainframe Systems & Networking

Required skills

IBM z/OS Communications Server, SNA/VTAM/APPN, TCP/IP stack on z/OS, REXX/CLIST/Python/BASH scripting, IBM NetView, SFTP/FTPS/Connect:Direct, digital certificates and SSL/TLS

Preferred skills

Infrastructure automation, capacity planning, incident response, modern enterprise hardware integration

Technologies

IBM z/OS, VTAM, TCP/IP, OSPF, EIGRP, NetView, Python, REXX, CLIST, SFTP, SSL/TLS

Responsibilities

Configure and optimize physical, virtualized, and cloud-based infrastructure; implement monitoring and capacity planning; provide technical guidance to junior engineers; evaluate new infrastructure technologies for modernization

Seniority

Senior, hands-on IC

About Travelers

Travelers is seeking an Sr Software Engineer (Engineering Enablement lead) to join our organization as we grow and transform our Technology landscape through AI-driven engineering practices. The individual will serve as a technical thought leader, product owner, and leader in equal measure — setting direction, shaping strategy, managing the Engineering Enablement product portfolio, and ensuring AI-driven engineering practices take root and scale across Claim Technology. While maintaining the technical depth to engage credibly across the full software engineering lifecycle, this role is defined