Sr. Infrastructure Engineer I- Mainframe

Symetra; United States; Hybrid; USD 110,000 - 150,000; Full time

Benefits offered by this job

Flexible full-time or hybrid telecommu

401(k) plan

Job summary

Symetra is seeking a Sr. Infrastructure Engineer I to join the Mainframe Pod within the Infrastructure & Operations team. You will lead day-to-day mainframe operations, coordinate with our managed service provider, and drive incident handling, changes, and modernization efforts.

The role requires hands-on mainframe expertise and collaborative leadership to align partners, ensure security and efficiency, and support critical applications like Endevor and ESP tooling.

Qualifications

• Hands-on experience with mainframe environments and operations.
• Ability to coordinate incidents and changes with service providers.

Responsibilities

• Act as main contact for mainframe operations, overseeing daily health, stability, and performance.
• Bridge between application teams and the managed service provider to ensure clear communication and timely resolutions.
• Manage Service Requests and Incidents, with hands-on troubleshooting and escalation as needed.
• Monitor ESP Scheduler activities, scheduling, execution, and troubleshooting of batch workloads.
• Collaborate with app teams to optimize ESP job calendars and dependencies.
• Coordinate mainframe upgrades and changes with minimal downtime.
• Provide support for Endevor, Terminal Emulator, Control-D, and related tools.
• Support audit and regulatory compliance activities with proper documentation.
• Contribute architectural input and best-practice guidance for mainframe applications.
• Support real-time integrations and web services linking distributed platforms to the mainframe.
• Participate in modernization initiatives to transition legacy workloads to more agile solutions.

Skills

Mainframe operations

Incident coordination

Relationship management

Tools

Endevor

Terminal Emulator

Control-D

ESP Scheduler

Job description

Symetra has an exciting new opportunity to join us as aSr. Infrastructure Engineer I!

About the role

As a Sr. Infrastructure Engineer I, you will play a critical role in the Mainframe Pod of Symetra's Infrastructure & Operations team. This position requires a solid focus on Mainframe Operations while serving as a key conduit between application teams and our managed service provider. The successful candidate will ensure reliable day-to-day operations, lead coordination of incident and request handling, and contribute to roadmap and modernization initiatives.

This role demands both hands‑on technical expertise in mainframe environments and collaborative leadership skills to align partners and keep systems running securely and efficiently.

What you will do

• Act as a main contact for mainframe operations, overseeing daily health, stability, and performance of mainframe systems and tools.
• Serve as the bridge between application teams and the managed service provider, ensuring clear communication, timely resolution of issues, and effective coordination of changes and upgrades.
• Manage Service Requests and Incidents from application teams, providing hands‑on troubleshooting and advancing to service providers when necessary.
• Manage and monitor ESP Scheduler activities, including scheduling, execution, and troubleshooting of batch and on-demand workloads.
• Partner with application teams to optimize and maintain ESP job schedules, calendars, and dependencies.
• Coordinate and oversee mainframe application upgrades and changes, partnering with app teams and the service provider to minimize risk and downtime.
• Provide primary support for key applications such as Endevor, Terminal Emulator, Control-D and related tools.
• Support audit and compliance activities, ensuring proper documentation and alignment to regulatory standards.
• Deliver architectural input and technical evaluations of applications, guiding app teams on mainframe‑related best practices.
• Support real‑time integrations and web services that connect distributed platforms to the mainframe.
• Participate in and influence mainframe modernization efforts, helping transition legacy workloads toward more agile, integrated, and automated approaches.

Why Work at Symetra

Here's what some of our employees have to say about why they work at Symetra:

"Symetra will spoil you. There aren't many companies that will put as much effort into you being a success as Symetra. The culture will challenge you but simultaneously put you at ease. Failure is seen as integral to the learning process so there is less reason to be fearful of it." - Kerry S., Sr. Systems Analyst

"If you want to invest in yourself and build a career, this is a great place to work. If you don't want to put in the effort to learn the industry and become a student of the business (it takes real effort!), there are easier places to work."- Cris H., VP Internal Sales

What we offer you

Benefits and Perks

We don't take a \"one-size-fits-all\" approach when it comes to our employees. Our programs are designed to make your life better both at work and at home.

• Flexible full-time or hybrid telecommuting arrangements
• Plan for your future with our 401(k) plan and take advantage of