Top Engineering Jobs

Maintain and optimize z/OS communication infrastructure (VTAM, TCP/IP, SNA, Sysplex), implement secure protocols (AT-TLS, SSL, SFTP, FTPS, Connect:Direct), integrate with WebSphere and middleware, monitor and tune performance, support capacity and disaster recovery planning, and provide vendor/third-party software installation and diagnosis. Participate in on-call and weekend duties.

Maintain and optimize Mastercard's z/OS mainframe communication environment (VTAM, TCP/IP, SNA, Sysplex). Implement secure protocols (AT-TLS/SSL/SFTP/FTPS/Connect:Direct), integrate with WebSphere and middleware, use USS, monitor and tune performance, support capacity and disaster recovery planning, collaborate with application and network teams, and provide on-call and customer implementation support.

Maintain and optimize z/OS communication infrastructure (VTAM, TCP/IP, SNA, Sysplex), implement secure protocols (AT-TLS, SSL, SFTP, FTPS, Connect:Direct), integrate with middleware (WebSphere, z/OS USS), monitor and tune performance, support capacity and disaster recovery, collaborate with application/network teams, and provide on-call and implementation support.

Maintain and optimize mainframe network infrastructure and z/OS Communication Server components (VTAM, TCP/IP, SNA, Sysplex). Implement secure protocols (AT-TLS, SSL, SFTP, FTPS, Connect:Direct), integrate with WebSphere and middleware, use z/OS UNIX, monitor and tune performance, support capacity and disaster recovery planning, collaborate with vendors and application/network teams, and participate in on-call and customer implementations.

Maintain and optimize z/OS communication infrastructure (VTAM, TCP/IP, SNA, Sysplex). Implement secure protocols (AT-TLS, SSL, SFTP, FTPS, Connect:Direct), integrate with WebSphere and middleware, monitor/tune performance, support capacity and disaster recovery, install/diagnose third-party software, and provide on-call and weekend support.

Maintain and optimize z/OS communication infrastructure (VTAM, TCP/IP, SNA, Sysplex). Implement secure protocols (AT-TLS, SSL, SFTP, FTPS, Connect Direct), integrate with middleware, monitor and tune performance, support capacity and disaster recovery, and provide on-call/customer implementation support.

Maintain and optimize z/OS communication infrastructure (VTAM, TCP/IP, SNA, Sysplex). Implement secure protocols (AT-TLS, SSL, SFTP, FTPS, Connect:Direct), integrate with middleware, monitor and tune performance, support capacity and disaster recovery, provide on-call/customer implementation support, and stay current on mainframe communication best practices.

Maintain and optimize z/OS communication infrastructure (VTAM, TCP/IP, SNA, Sysplex), implement secure protocols (AT-TLS, SSL, SFTP, FTPS, Connect:Direct), integrate with middleware and z/OS WebSphere, monitor and tune performance, support capacity and disaster recovery, collaborate with application/network teams, perform on-call and customer implementations, and recommend best practices.

Maintain and optimize z/OS Communication Server infrastructure (VTAM, TCP/IP, SNA, Sysplex). Implement secure protocols (AT-TLS/SSL/SFTP/FTPS/Connect:Direct), integrate with WebSphere and middleware, monitor and tune performance, support capacity and disaster recovery planning, install and diagnose third-party software, collaborate with application/network teams, and provide on-call and weekend support.

Early-career Java engineer building cloud-ready microservices for high-throughput transaction platforms. Develop, test, and deploy services using Spring/Spring Boot, Kafka, JPA and REST; participate in design, code reviews, debugging, CI/CD, and Agile team activities while following secure coding and testing best practices.