Top Tech Jobs & Startup Jobs in Dublin

Lead security engineer advising product and operational teams on secure design, documenting and enhancing security standards, leading large cross-functional initiatives, presenting technical guidance, and recommending solutions to meet security and regulatory requirements. Role requires deep knowledge in web security, cryptography, encryption protocols, security tooling, automation, scripting, and Linux administration.

Lead modernization of fraud rules/engines and large-scale migrations. Provide technical leadership across cross-functional teams, design and implement scalable, low-latency microservice platforms, mentor engineers, ensure architecture/security/compliance, and apply AI/LLM familiarity for fraud solutions while driving engineering excellence and reliable operations.

Design, build, and deploy enterprise AI solutions using LLMs, RAG, and vector search. Architect scalable, secure cloud-based systems (AWS, Databricks, Cloudera), develop APIs and microservices, optimize model performance, and ensure data governance and compliance. Mentor engineers and collaborate cross-functionally to deliver production-ready AI applications.

Lead Security Engineer in the Business Security Enablement guild advising product and operational teams on secure design, driving security reviews, documenting and enhancing standards, presenting technical guidance, leading security for large global initiatives, recommending secure solutions to meet regulatory requirements, and implementing automation, scripting, and Linux-based security administration.

Lead architecture, build, and operate production-grade AI systems and platforms. Translate business intent into scalable, secure AI solutions, drive technical strategy, mentor senior engineers and data scientists, and own MLOps, deployment, monitoring, and lifecycle management across cloud-native environments.

Lead architecture for a global B2B payments platform: design secure, resilient, high-throughput microservices, create technical blueprints, mentor teams, ensure cloud-native standards and non-functional requirements, and collaborate with product and stakeholders to deliver production-ready solutions.

Lead strategy and execution for SME partner onboarding: design scalable operating models, processes, tooling, metrics, and governance. Align cross-functional teams, prioritize enhancements, resolve escalations, translate regulatory requirements, surface onboarding health and risk to senior leadership, and build and coach a high-performing onboarding team.

Lead architecture and technical strategy for a global virtual card platform. Design and build scalable, secure, highly available services; collaborate with product and regional teams; mentor engineers; implement Domain Driven Design; ensure security, operability, and delivery of complex software solutions across cloud, containers, and high-throughput systems.

Lead engineering teams to build and operate cloud-native API platforms exposing foundation model capabilities. Own architecture, security, reliability, CI/CD, observability, model integration, and delivery across multiple workstreams while hiring, coaching, and partnering with stakeholders to translate product needs into technical roadmaps.

Lead and grow software teams delivering Mastercard Fraud Management Platform enhancements. Drive design, development, and production support of distributed, high-volume transaction systems in an Agile environment. Partner with product owners, act as Scrum Master, manage staffing, coaching, performance reviews, and continuous improvement, ensuring operational excellence and timely delivery of major initiatives.