[Remote] Mainframe Network Engineer
Note: The job is a remote job and is open to candidates in USA. Kyndryl designs, builds, manages, and modernizes mission-critical technology systems. The Mainframe Network Engineer designs, configures, implements, and supports secure network connectivity for IBM mainframe environments, including TCP/IP, VTAM, SNA, Enterprise Extender, TN3270, FTP, and network security controls. The role also supports connectivity troubleshooting, security compliance, disaster recovery, and business continuity activities.
Responsibilities
- Install, configure, and maintain z/OS Communications Server components
- Support and manage TCP/IP configuration on z/OS systems
- Maintain and troubleshoot VTAM definitions and network resources
- Configure and support Enterprise Extender (EE) and SNA connectivity where applicable
- Maintain TN3270 access and session-related connectivity for end users and applications
- Ensure stable communication between mainframe systems and:
- Distributed servers
- External vendors/partners
- Internal enterprise applications
- Middleware platforms
- Diagnose and resolve connectivity issues involving:
- IP routing
- Port communication
- Session failures
- DNS resolution
- Firewall-related blocks
- Support file transfer protocols such as FTP, SFTP, and other secure data exchange solutions
- Work closely with network security teams to enforce secure communication protocols
- Ensure compliance with enterprise security controls and audit requirements
- Support SSL/TLS certificate implementation and secure transmission standards
- Assist with firewall rule validation, port usage reviews, and vulnerability remediation
- Support network design and recovery procedures for Disaster Recovery (DR) environments
- Validate communication paths for failover systems and backup data centers
- Participate in DR tests and business continuity exercises
- Participate in on-call rotation with the engineering teams
- The ability to follow a project through to completion, and/or to work as part of a larger team to complete the components of a complex project
Skills
- Minimum 5+ years of experience in Typically in mainframe networking or z/OS communications support
- Familiarity with JCL, TSO/ISPF, SDSF
- Ability to analyze logs, traces, and dump information relevant to communications issues
- Solid knowledge and experience on TCP/IP on z/OS , VTAM, SNA / Enterprise Extender, TN3270, FTP / SFTP and TLS
- Experience in supporting transmission products such as Connect Direct
- The ability to work independently as well as part of a team
- Excellent troubleshooting and customer service skills
- The ability to follow a project through to completion, and/or to work as part of a larger team to complete the components of a complex project
- IBM mainframe or networking certifications are a plus
Benefits
- Employee learning programs with access to industry training and certifications, including Microsoft, Google, Amazon, Skillsoft, and many more.
- Company-wide volunteering and giving platform to donate, start fundraisers, volunteer, and search over 2 million non-profit organizations.
- Kyndryl Inclusion Networks, which provide employees with opportunities to find and provide support and advice.
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