The Travelers Companies, Inc

Mainframe Network Engineer

The Travelers Companies, Inc • $94K — $155K *
Hartford, CT 06106Hybrid
Information Technology
Less than 5 years of experience
Today
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Job Overview by Ladders

Qualifications

  • Bachelor's degree in computer science or related STEM field, or equivalent work experience plus 2 years of infrastructure engineering experience.
  • 3 years of infrastructure engineering/systems administration experience preferred.
  • Proven expertise in specific areas of infrastructure engineering with the ability to work across related systems.
  • In-depth knowledge of immediate infrastructure systems and concepts necessary for effective job performance.
  • Strong communication skills for clear interactions with team members and stakeholders.

Responsibilities

  • Perform analysis, design, and implementation of infrastructure components across various domains with high accuracy.
  • Define and implement technical requirements for infrastructure provisioning and operational support using automation methodologies.
  • Enhance infrastructure deployment workflows to improve reliability and operational efficiency.
  • Configure and optimize physical, virtualized, and cloud-based infrastructure for high availability and performance.
  • Collaborate with software and operations teams to align infrastructure capabilities with business needs.
  • Provide technical guidance to junior engineers and contribute to infrastructure standards.
  • Evaluate new technologies to identify opportunities for operational improvements.

Benefits

  • Health insurance coverage for employees and eligible family members from day one.
  • 401(k) matching contributions dollar-for-dollar up to 5% of eligible pay, plus a Pension Plan fully funded by Travelers.
  • Minimum of 20 days Paid Time Off annually, plus nine paid company holidays.
  • Access to a comprehensive wellness program and mental health resources.
  • Encouragement and support for community involvement through a Matching Gift and Volunteer Rewards program.
Full Job Description
Job Category

Technology

Compensation Overview

The annual base salary range provided for this position is a nationwide market range and represents a broad range of salaries for this role across the country. The actual salary for this position will be determined by a number of factors, including the scope, complexity and location of the role; the skills, education, training, credentials and experience of the candidate; and other conditions of employment. As part of our comprehensive compensation and benefits program, employees are also eligible for performance-based cash incentive awards.

Salary Range
$94,400.00 - $155,800.00

Target Openings

1

What Is the Opportunity?

Travelers is seeking a Mainframe Network Engineer to join our organization as we grow and transform our Enterprise Technology Solutions organization, Our Infrastructure Engineers serve as a foundational cornerstone of the enterprise technology ecosystem, encompassing a diverse portfolio of critical systems that power all business operations. This discipline may include mainframe systems, compute resources, storage solutions, collaboration tools, and specialized platforms that enable system interoperability. As the bedrock layer of the technology stack, Infrastructure Engineering creates the resilient, secure, and scalable environments upon which all other technology services depend, balancing the maintenance of established systems with the adoption of modern cloud-native approaches to drive organizational agility and innovation. Applicants must be authorized to work for ANY employer in the US. The company does not sponsor/support H-1B petitions, TN, or Forms I-983/STEM OPT, this this role.What Will You Do?
  • Responsible for performing analysis, design, and implementation of infrastructure components across various domains (which may include mainframe systems, collaboration tools, compute resources, storage solutions, or other specialized areas) with a high degree of accuracy.


Technical Execution:
  • Define and implement technical requirements for infrastructure provisioning, configuration management, and operational support using appropriate automation methodologies.
  • Enhance infrastructure deployment workflows to improve system reliability, resource utilization, and operational efficiency while resolving infrastructure issues of intermediate complexity.
  • Configure and optimize physical, virtualized, and cloud-based infrastructure to ensure high availability, performance, and operational resilience across multiple technology domains.
  • Implement and maintain infrastructure monitoring, capacity planning, and incident response procedures while ensuring adherence to security protocols and compliance requirements.


Strategic Input:
  • Collaborate with software, platform, and operations teams to align infrastructure capabilities with application requirements and business needs.
  • Provide technical guidance to Associate and Sr Associate Infrastructure Engineers while contributing to infrastructure standards and best practices.
  • Evaluate new infrastructure technologies and methodologies to identify opportunities for operational improvements and technology modernization.
  • Perform other duties as assigned.
What Will Our Ideal Candidate Have?

Technical Expertise & Education:
  • 3 years of infrastructure engineering/systems administration experience preferred.
  • If specializing in a certain domain of infrastructure engineering, proven expertise in that specific area with ability to work across related systems.
  • Domain Expertise - Demonstrated track record of infrastructure expertise including the ability to understand system concepts necessary to do the job effectively, demonstrate willingness, cooperation, and concern for business issues, and possess in-depth knowledge of immediate infrastructure systems worked on.

  • Core Mainframe & Operating System Skills
    • IBM z/OS: Deep proficiency in the z/OS Communications Server environment.
    • Protocols & Architecture: Hands-on experience with SNA (Systems Network Architecture), VTAM (Virtual Telecommunication Access Method), and APPN/Enterprise Extender for SNA-over-IP communication.
    • Environment Navigation: Familiarity with standard mainframe interfaces like TSO/ISPF, JCL (Job Control Language), and IOF (Interactive Output Facility.
  • Networking & Connectivity Skills
    • TCP/IP Stack: Advanced configuration and management of the z/OS TCP/IP stack, routing protocols (OSPF, EIGRP), and Layer 2/Layer 3 integration.
    • Trace & Packet Analysis: Ability to execute and analyze complex VTAM network traces and sniffer/TCP/IP packet captures to isolate bottlenecks.
    • Infrastructure Integration: Working knowledge of modern enterprise hardware and software, including switches, firewalls, load balancers, and 3270 emulators.
  • Security & Policy Management
    • Pagent & AT-TLS: Customization of the z/OS Policy Agent and Application Transparent Transport Layer Security for network policy and encryption rules.
    • Certificates & Encryption: Administration of digital certificates, keyrings, SSH, and SSL/TLS protocols.
    • Secure File Transfers: Support for enterprise file-moving tools like SFTP, FTPS, and Connect:Direct.
  • Automation, Scripting & Monitoring
    • Scripting Languages: Competency in REXX, CLIST, Python, or Linux BASH for workflow automation and generating SMF (System Management Facilities) reports.
    • Diagnostic Tools: Experience utilizing IBM NetView, IBM or equivalent performance and capacity-planning tools.


Leadership & Influence:
  • Strong communication skills that enable clear, concise interactions with team members and stakeholders.
  • Your ability to document infrastructure work in an accessible manner, ask clarifying questions on requirements, and actively listen ensures seamless collaboration.
  • You welcome constructive feedback and use it to continuously improve your approach to infrastructure challenges.
  • You demonstrate intermediate leadership capabilities with a proven track record of self-motivation and initiative.
  • Your ability to identify and pursue personal growth opportunities in infrastructure technologies shows your commitment to professional development and positions you to take on increasing responsibilities within our team.


Strategic & Business Acumen:
  • Intermediate delivery skills including the ability to deliver infrastructure work at a steady, predictable pace to achieve commitments, decompose infrastructure assignments into small batch deployments, and contribute to system architecture tradeoff and negotiation discussions.
  • Proven problem-solving skills including infrastructure debugging abilities, allowing you to determine source of issues in unfamiliar systems or environments, ability to recognize and solve repetitive infrastructure problems proactively and permanently, recognize mistakes using them as learning opportunities, and break down large infrastructure problems into smaller, more manageable ones.

What is a Must Have?
  • Bachelor's degree in computer science, related STEM field, or its equivalent in work experience plus 2 years of infrastructure engineering experience.


What Is in It for You?
  • Health Insurance: Employees and their eligible family members - including spouses, domestic partners, and children - are eligible for coverage from the first day of employment.
  • Retirement: Travelers matches your 401(k) contributions dollar-for-dollar up to your first 5% of eligible pay, subject to an annual maximum. If you have student loan debt, you can enroll in the Paying it Forward Savings Program. When you make a payment toward your student loan, Travelers will make an annual contribution into your 401(k) account. You are also eligible for a Pension Plan that is 100% funded by Travelers.
  • Paid Time Off: Start your career at Travelers with a minimum of 20 days Paid Time Off annually, plus nine paid company Holidays.
  • Wellness Program: The Travelers wellness program is comprised of tools, discounts and resources that empower you to achieve your wellness goals and caregiving needs. In addition, our mental health program provides access to free professional counseling services, health coaching and other resources to support your daily life needs.
  • Volunteer Encouragement: We have a deep commitment to the communities we serve and encourage our employees to get involved. Travelers has a Matching Gift and Volunteer Rewards program that enables you to give back to the charity of your choice.

About The Travelers Companies, Inc

Travelers is an insurance leader, committed to keeping pace with the ever-changing needs of their customers and anticipating their needs for the future. There is no stronger testament to their dedication to protecting customers from loss than their continued innovation and ability to transform their industry. In fact, from the first-ever auto and space travel policies and hybrid car discount, to the 2009 founding of The Travelers Institute for public policy, their history of advancements has propelled their company—and their industry—towards ever higher standards for customers. Travelers is a company that works hard at the science of what they do: they analyze information, process perspectives and measure results to create the best combination of products and services. They work equally hard at customer service and how they interact with the people whom they do business. Over the years, they've strived to earn their customer's loyalty by continually improving their abilities to listen and respond to their needs.

The Travelers Companies, Inc Careers

Join the vibrant team at The Travelers Companies, Inc, a leader in the insurance industry, and propel your career to new heights with a company known for its commitment to innovation, leadership, and professional growth.

Explore Job Opportunities and Growth

At The Travelers Companies, Inc, we offer a plethora of job opportunities that cater to a variety of skills and professional interests. Whether you're seeking a position in management, customer service, underwriting, or IT, we have a place for you. Our commitment to professional growth means we provide unparalleled career advancement tools and leadership training to help you climb the ladder of success.

Internship Programs: A Gateway to Employment

Kickstart your career with our dynamic internship programs. These opportunities are designed not just to teach, but to challenge and expand your understanding of the industry. Internships at Travelers are a perfect way to enhance your resume and gain valuable real-world experience, making you a competitive candidate for future employment.

Culture and Benefits

At The Travelers Companies, Inc, we pride ourselves on a culture that fosters diversity, networking, and innovation. Our team is our family, and we support each other's professional and personal growth. The benefits at Travelers are comprehensive, designed to meet the diverse needs of our employees, including health, wellness, and continuous education.

Hiring Process: What to Expect

Our hiring process is straightforward and transparent, designed to find passionate, curious, and solution-driven team players. From the initial application and resume submission to the interview, we ensure that every candidate is treated with respect and given a fair chance to demonstrate their capabilities.

Career Development and Training

We believe in nurturing talent and providing our team with the tools they need to succeed. Our career development programs include professional training, diversity training, and skills enhancement workshops. These resources are tailored to foster innovation and empower our employees with the latest industry knowledge and best practices.

Join Our Team

Are you ready to explore the exciting career opportunities at The Travelers Companies, Inc? Search open positions that match your skills and interests. We are always looking for individuals who are driven to innovate and lead.

Stay Connected

Keep up to date with the latest news, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the rewarding opportunities that await at The Travelers Companies, Inc.

Explore Careers at The Travelers Companies, Inc

Embark on a journey of growth, opportunity, and excellence. At The Travelers Companies, Inc, your career is just beginning. Join us and make a difference in a company that values leadership, diversity, and forward-thinking.
Learn more about The Travelers Companies, Inc
Size
30,800 employees
Market Cap
$44.1 billion
Industry
Finance & Insurance
Net Income
$2.6 billion
Founded
1853
5 Year Trend
+4.7%
Revenue
$32 billion
NASDAQ
TRV
* Ladders Estimates

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