Senior Platform Engineer

Overview The Open Banking platform engineering team is looking for a senior platform engineer that has significant FinOps experience to help advance our platform, and help drive cost optimisation, efficiency and data-driven decision making across our cloud infrastructure. The ideal candidate will have strong technical expertise, financial acumen, and a strong ability to present data in clear, actionable ways. This role is critical to ensuring our platforms are scalable, cost-effective, and aligned with business objectives.
Responsibilities Design, implement, and maintain cost-efficient cloud infrastructure across multiple clouds.
Architect and optimize scalable systems and applications with a focus on performance and reliability.
Traverse and analyze large datasets to identify trends, inefficiencies, and opportunities for optimization.
Develop and maintain intuitive dashboards and visualizations to present insights on cloud costs, resource utilization, and performance metrics.
Collaborate with stakeholders to ensure financial and technical goals align, providing actionable insights to support decision-making.
Automate infrastructure provisioning, monitoring, and reporting using tools like Terraform, Kubernetes, and cloud-native solutions.
Build tools and processes for efficient cost forecasting, monitoring, and accountability.
Advocate for FinOps best practices across the organization, educating teams on cost implications of design and operational decisions.
Requirements Strong programming skills in Golang and Python, with hands-on experience building and maintaining complex microservices applications.
5+ years of experience in cloud architecture and infrastructure management, with a deep focus on cloud cost optimization.
Expertise in cloud platforms (AWS, Azure, GCP), with advanced knowledge in cloud cost management and FinOps practices.
Strong ability to analyze large datasets, identify cost inefficiencies, and present data through dashboards and visualizations.
Proven experience in cloud cost management, FinOps practices, and scalable architecture design.
Proficiency in traversing and analyzing large datasets, with expertise in tools like SQL, Python, or other data processing, query languages.
Expertise in developing dashboards and visualizations using tools like AWS QuickSight, Tableau, Power BI, or cloud-native solutions (e.g Kubecost/Opencost).
Strong knowledge of cloud platforms (AWS, Azure, GCP), infrastructure-as-code (Terraform, Kubernetes), and automation frameworks.
Experience in system and application design with a focus on efficiency and reliability.
A broad technical background with experience across development and infrastructure tools.
Excellent communication skills, capable of conveying complex technical and financial concepts clearly.
Passion for driving system efficiency, cost-effectiveness, and performance improvements.
Strong financial modeling and budgeting skills.
Certification in AWS, Azure, or GCP is a plus.
Corporate Security Responsibility Abide by Mastercard’s security policies and practices;
Ensure the confidentiality and integrity of the information being accessed;
Report any suspected information security violation or breach; and
Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.
NOTE: Candidates go through a thorough screening and interview process. There is no need to include all preferred skills in the job description.
Seniority level Mid-Senior level
Employment type Full-time
Job function Engineering and Information Technology
Industries Financial Services
IT Services and IT Consulting
Technology, Information and Internet
Dublin, County Dublin, Ireland

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