Senior Mainframe Systems Programmer – z/OS, Network

Fiserv

Senior Mainframe Systems Programmer managing z/OS-Network administration and troubleshooting. Engaging in disaster recovery, governance audits, and maintaining performance standards.

Posted 4/16/2026full-timeRemote • Maryland, Minnesota, New Jersey, New York • 🇺🇸 United StatesSenior💰 $109,000 - $152,000 per yearWebsite

Tech Stack

Tools & technologies

DNSFirewallsTCP/IPUnix

About the role

Key responsibilities & impact

Install and maintain Connect:Direct (NDM), MSM and InterTest Batch utilizing SMP/E
Design and develop utilities (REXX) to streamline processes
Support a redundant TCPIP network for a Parallel Sysplex by making use of Dynamic VIPA and Sysplex Distributor and HiperSockets
Support non-shared USS file system in a Shared File system accessible by all LPARs within a Sysplex
Support and diagnose AT-TLS configurations
Troubleshoot started task abends utilizing IPCS
Apply Ciphers and license certificates
Resolving network connection issues utilizing packet traces

Requirements

What you’ll need

9+ years of experience with the z/OS mainframe communications experience
7+ years of experience with TCP/IP, DNS, DHCP, and possess a deep understanding of core networking protocols as well has hands on Cisco routers and switches
7+ years of experience configuring and managing secure data transmissions with firewalls and VPNs
7+ years of experience with JCL, UNIX Shell, IBM system utilities, and network monitoring tools
Bachelor's degree in a related field or an equivalent combination of education, military, and work experience

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account Fiserv Website LinkedIn All Job Openings 10,000+ employees Founded 1984 💸 Finance 💳 Fintech 🏦 Banking Finance
Fintech
Banking Fiserv is a leading global provider of financial services technology solutions. The company offers a wide range of services including payments and financial services technology for individuals, businesses, and financial institutions. Fiserv supports various sectors such as large enterprises, small businesses, financial institutions, credit unions, and the public sector with digital banking, payment processing, and commerce solutions. Their platforms enable fintech and software providers to integrate and monetize payments effectively. Additionally, Fiserv is committed to corporate social responsibility and has initiatives to support diverse and small businesses. Senior Mainframe Systems Programmer – z/OS, Network 🔥 3 minutes ago 🏖️ New Jersey, New York – Remote 💵 $128k - $216k / year ⏰ Full Time 🟠 Senior 🖥 Software Engineer 🦅 H1B Visa Sponsor DNS Firewalls TCP/IP Unix Apply Now Find Hiring Managers Customize resume for this job Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Install and maintain Connect:Direct (NDM), MSM and InterTest Batch utilizing SMP/E
Design and develop utilities (REXX) to streamline processes
Support a redundant TCPIP network for a Parallel Sysplex by making use of Dynamic VIPA and Sysplex Distributor and HiperSockets
Support non-shared USS file system in a Shared File system accessible by all LPARs within a Sysplex
Support and diagnose AT-TLS configurations
Troubleshoot started task abends utilizing IPCS
Apply Ciphers and license certificates
Resolving network connection issues utilizing packet traces 🎯 Requirements
9+ years of experience with the z/OS mainframe communications experience
7+ years of experience with TCP/IP, DNS, DHCP, and possess a deep understanding of core networking protocols as well has hands on Cisco routers and switches
7+ years of experience configuring and managing secure data transmissions with firewalls and VPNs
7+ years of experience with JCL, UNIX Shell, IBM system utilities, and network monitoring tools
Bachelor's degree in a related field or an equivalent combination of education, military, and work experience Apply Now 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score Similar Jobs React Native Developer 🔥 3 hours ago Fox Corporation 5001 - 10000 📱 Media Website LinkedIn All Job Openings React Native Developer joining FOX's CTV Team to develop and enhance Connected TV apps. Collaborating on innovative solutions in the Local News space with a focus on performance optimization. 🇺🇸 United States – Remote 💵 $120.8k - $150k / year 💰 $1.2G Post-IPO Debt on 2020-04 ⏰ Full Time 🟡 Mid-level 🟠 Senior 🖥 Software Engineer 🦅 H1B Visa Sponsor Android JavaScript Jest React React Native Redux TypeScript Power Apps Developer 🔥 4 hours ago Guidehouse 10,000+ employees Website LinkedIn All Job Openings Power Apps Developer specializing in Microsoft Power Platform solutions and client services. Engaging in project phases from discovery to deployment while ensuring high quality standards. 🇺🇸 United States – Remote 💵 $102k - $170k / year 💰 Grant on 2023-02 ⏰ Full Time 🟡 Mid-level 🟠 Senior 🖥 Software Engineer 🦅 H1B Visa Sponsor React Native Developer 🔥 4 hours ago Fox Corporation 5001 - 10000 📱 Media Website LinkedIn All Job Openings React Native CTV Developer for FOX Television Stations enhancing local news apps. Collaborating on new features and code deployment in a fast-paced environment. 🇺🇸 United States – Remote 💵 $145k - $150k / year 💰 $1.2G Post-IPO Debt on 2020-04 ⏰ Full Time 🟡 Mid-level 🟠 Senior 🖥 Software Engineer 🦅 H1B Visa Sponsor Android JavaScript Jest React React Native Redux TypeScript Senior Director – Cyber Defense Engineering 🔥 8 hours ago Recruiting.com 11 - 50 🎯 Recruiter ☁️ SaaS 🤝 B2B Website LinkedIn All Job Openings Senior Director of Cyber Defense Architecture & Engineering leading the strategy, design, engineering, and continuous improvement of cyber defense capabilities at Cencora. 🇺🇸 United States – Remote 💰 Private Equity Round on 2006-06 ⏰ Full Time 🟠 Senior 🖥 Software Engineer Cloud PMP Project Engineering Manager 🔥 9 hours ago US Claro 201 - 500 📡 Telecommunications 🛍️ eCommerce 👥 B2C Website LinkedIn All Job Openings Project Engineer Manager overseeing Project Engineers at Claro Enterprise Solutions. Guiding technical operations, mentoring associates, ensuring compliance, and driving operational efficiency. 🇺🇸 United States – Remote ⏰ Full Time 🟠 Senior 🔴 Lead 🖥 Software Engineer 🗣️🇪🇸 Spanish Required View More Software Engineer Jobs 🌐 Worldwide Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com Search Search Jobs by country Search jobs by city Search jobs by job title Search entry-level jobs Search junior-level jobs Search senior-level jobs Search jobs by tech stack Search jobs by contract type Search remote internships Search remote part-time jobs Remote jobs Anywhere in the World Companies Hiring Anywhere in the World Companies Hiring Sales People Anywhere in the World Companies Hiring Software Engineers Anywhere in the World Resources Advice Tips for finding remote jobs Interview questions and answers Resume examples Cover letter examples Post a job Affiliates Privacy policy Terms of service Job board SEO course AI Apply Copilot OpenClaw job finder Jobs by Country Remote jobs anywhere in the world (Worldwide remote jobs) Remote jobs United States Remote jobs Australia Remote jobs Brazil Remote jobs Canada Remote jobs France Remote jobs Ireland Remote jobs Germany Remote jobs Netherlands Remote jobs Spain Remote jobs UK Popular Jobs Remote data analyst jobs Remote customer support jobs Remote executive assistant jobs Remote marketing jobs Remote product designer jobs Remote product manager jobs Remote project manager jobs Remote recruiter jobs Remote sales jobs Remote software engineer jobs Jobs by Type Remote full-time jobs Remote part-time jobs Remote contract jobs Remote internship jobs Remote entry-level jobs Remote jobs with no experience required Remote junior jobs (1-3 years of experience) Digital nomad jobs Remote jobs with no degree required Freelance remote jobs Temporary remote jobs Remote jobs hiring now Stay at home mom jobs

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Applicant Tracking System Keywords

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Hard Skills & Tools

Connect:DirectNDMMSMInterTest BatchREXXTCP/IPDNSDHCPJCLUNIX Shell