Top Engineering Jobs

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

Maintain and optimize z/OS communication environment (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, collaborate with application/network teams, and provide on-call and customer implementation support.

Maintain and optimize z/OS Communication Server stack (VTAM, TCP/IP, SNA, Sysplex), implement secure protocols (AT-TLS, SSL, SFTP, FTPS, Connect:Direct), integrate with WebSphere and middleware via z/OS USS, monitor and tune performance, support capacity and disaster recovery, install and diagnose third-party software, and participate in on-call and weekend duties.

Maintain and optimize z/OS mainframe 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 planning, and provide on-call and weekend support while collaborating with application and network teams.

Maintain and optimize mainframe network infrastructure by administering z/OS Communication Server components (VTAM, TCP/IP, SNA, Sysplex), implementing secure protocols (AT-TLS, SSL, SFTP, FTPS, Connect:Direct), integrating with WebSphere and middleware, using z/OS USS, monitoring and tuning performance, supporting capacity and disaster recovery, and providing on-call and customer implementation support.

Design, develop, and support scalable, high-performance Java applications for fraud prevention. Participate in Agile processes, design/code/security reviews, troubleshoot production issues, optimize performance and reliability, and collaborate globally to deliver maintainable solutions.

Maintain and optimize z/OS Communication Server environment (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 recommend best practices.

Design, build, and operate Dev Cloud and internal developer platform capabilities. Own Docker Desktop developer workflows, extend Backstage (templates, plugins, catalogs), build cloud-native services on AWS, automate IaC and CI/CD, drive observability and security, onboard application teams, troubleshoot developer issues, and mentor engineers to improve developer experience and platform reliability.

Manage and optimize z/OS Communication Server infrastructure (VTAM, TCP/IP, SNA, Sysplex, cryptographic services). Implement secure protocols (AT-TLS, SSL, SFTP, FTPS, Connect:Direct), integrate with WebSphere and USS, monitor and tune performance, support capacity and disaster recovery, collaborate with application/network teams, handle on-call and customer implementations, and recommend best practices.

Lead client-facing solution architecture for Deploy engagements, defining end-to-end designs for Mastercard products and partner solutions. Drive discovery, requirements, integration design, and architectural decision-making; produce architecture artefacts; guide engineering teams; identify and mitigate technical risks to ensure scalable, secure, maintainable implementations.