Top Tech Jobs & Startup Jobs in Dublin

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.

Build and ship AI-enabled applications, tooling, and platform capabilities for agentic AI. Design reusable services, evaluate models and frameworks, improve developer workflows, and partner across product and engineering to prototype and scale AI solutions.

Build tooling, services, and reusable patterns to apply generative and agentic AI across products. Design, implement, and evaluate AI-enabled apps and developer workflows; improve developer experience via automation and platform capabilities; partner with stakeholders to deliver prototypes to production and share best practices across Mastercard.

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.

Design, build, and scale agentic and generative AI tooling, services, and developer-facing platforms. Implement AI-enabled applications, evaluate models and frameworks, improve developer experience, and partner with product and business stakeholders to prototype and productionize 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 and build Agentic AI tooling, services, and reusable patterns. Implement AI-enabled applications and developer-facing capabilities, evaluate models and frameworks, develop frontend (React/Next.js) and backend (Java/Python) systems, improve developer experience via automation and CI/CD, and partner with stakeholders from prototype to validation while sharing best practices.

Lead Platform Architect defines and governs enterprise infrastructure architecture, authors Technical Architecture Documents, and drives strategic, secure, scalable platform designs. Partners with application teams, provides technical authority on complex problems, researches emerging technologies, and enforces architectural governance and automation/cloud-native best practices across global initiatives.

Lead end-to-end product ownership for AI-powered solutions focused on LLMs and agentic workflows. Define EPICs and user stories, partner with engineering, design, and data science, oversee delivery, run discovery and experimentation, and communicate with stakeholders while ensuring budget, scope, and timelines.