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Hilary Greene
Software Development Engineer - Distributed Systems @Workday
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WORK HISTORY
Software Development Engineer - Distributed Systems @Workday
Dublin, IE
I\'m working as part of DAP (Deployment & Adoption Platform) for Workday. Our tooling is used to help onboard new customers to the workday system as well as onboarding current customers to new products. During my tenure I\'ve helped take our service OX 2.0 to EA and then GA successfully, followed by the deprecation of our previous main product OX 1.0, for upwards of customers. Currently working on building a content marketplace to streamline the customer onboarding experience.• Solid understanding of cloud-based infrastructure and managed services (AWS, GCP)• Building functional codebase in Scala with Cats Effect• Design, document, develop, test, review, and deploy scalable microservices that support high transactional volume.• Experience in service deployment to production: CI/CD pipelines (Jenkins), virtualisation (Docker), orchestration (Kubernetes)• Working with logging, monitoring, metrics, stats technologies, such as: Grafana, Prometheus• A testing/quality approach - unit, integration, E2E, regression and smoke testing, feature toggles, and canary deployments (pilot customers/EA feature deployment)• Exposure to operating system concepts covering networking, memory, storage, threading, concurrency and process management • Architecture focussing on performance, scale, security and availability• Responsible for a service in production through production incident triage, RCA, and on-call• UX/UI software development in Xilinx’s proprietary language, XO• Experience with API architecture, design and development• Highly effective team collaborator, and this is a huge part of our working culture here at Workday.
EDUCATION
University College Dublin
Master of Engineering (MEng), Electronic and Computor Engineering
University College Dublin
Bachelor of Science (BSc), Electronic Engineering
Newtown school, Waterford
Leaving certificate
SKILLS
ABOUT HILARY GREENE
Experienced Software Engineer focused on building and operating distributed systems that are secure, scalable, and reliable. Experience in delivering a service end-to-end, from writing code to deploying in production—using continuous integration (Jenkins), virtualisation (Docker), and orchestration (Kubernetes) across both Scylla AWS environments and our own data centres.I write robust, maintainable code primarily in Scala using Cats Effect, with a solid understanding of functional programming concepts. My technical expertise includes operating system fundamentals—memory and storage management, threading and concurrency, networking and sockets, and process management.I have a strong grasp of core software concerns such as performance and scalability, security, availability, deployment, and operational best practices. This foundation supports my work, which is backed by automated test suites, integration testing, and real-time observability (metrics, structured logging, and monitoring).Alongside architecture design and development, my role includes production triage and on-call, helping debug live issues and resolve customer support cases with a focus on root cause analysis and long-term resilience improvements.Lastly I’m passionate about company culture and currently serve as a Workclub leader for the Workday Tag Rugby team—building camaraderie and fostering team spirit beyond the code.
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