> Markdown version of [/jobs/ext/1251394-mainframe-network-systems-programmer](https://www.wearedevelopers.com/jobs/ext/1251394-mainframe-network-systems-programmer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # MAINFRAME NETWORK SYSTEMS PROGRAMMER - **Company:** Delaware Sunsations Inc - **Location:** Orlando, FL, United States - **Salary:** $150,000.0 - $175,000.0 - **Contract:** Permanent contract - **Skills:** Interactive System Productivity Facility (ISPF), Mainframes, Connect-Direct (Internet Protocols Based Network Software), Routing, TCP/IP, Z/OS, Computer Networking Systems, Firewalls (Computer Science) - **Published:** July 12, 2026 - **Apply:** https://www.careerjet.com/job/usaf5de0969738424f09b63e83a057c39d/eaa ## About the Role * PROVEN EXPERIENCE IN NETWORK MAINFRAME WITH VTAM, TCP-IP IN A Z/OS INFRASTRUCTURE ENVIRONMENT * CONNECT DIRECT * ISPF/TSO * LPAR COMMUNICATION * ROUTING PROTOCOLS, FIREWALL ## Related Videos - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [Is it still C#? Practical systems programming with .NET (war stories included)](https://www.wearedevelopers.com/videos/100138-is-it-still-c-practical-systems-programming-with-net-war-stories-included) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [A Technical Introduction to Bitcoin's 2nd Layer- The Lightning Network](https://www.wearedevelopers.com/videos/15-a-technical-introduction-to-bitcoin-s-2nd-layer-the-lightning-network) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Basic And Advanced Networking in Dart and Flutter](https://www.wearedevelopers.com/magazine/112-basic-and-advanced-networking-in-dart-and-flutter) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [Data Science & more: The Lopez dilemma](https://www.wearedevelopers.com/magazine/10-data-science-more-the-lopez-dilemma) - [Dev Digest 181: America Offline! Pay to code? And bad AI hackers…](https://www.wearedevelopers.com/magazine/615-dev-digest-181-america-offline-pay-to-code-and-bad-ai-hackers)