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Mastercard · Dublin, Ireland

# Senior Platform Engineer

Dublin, Ireland Full-time Senior individual contributor Operations 

Listed on Mastercard’s official careers site. Posted October 30, 2026. Check that it is still open and apply there.
[Apply on Mastercard’s careers site →](https://mastercard.wd1.myworkdayjobs.com/CorporateCareers/job/Dublin-Ireland/Senior-Site-Reliability-Engineer_R-289950)

[OpenNash Jobs](https://jobs.opennash.com/) / [Mastercard](https://jobs.opennash.com/companies/mastercard/) / Senior Platform Engineer

## Job description

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

### Title and Summary Senior Platform Engineer Overview

The Cyber and Intelligence Solutions (C&I) team is responsible for product management and innovative product development of products and services to address the evolving risk & cyber security needs of all of MasterCard’s various customer segments. The C&I team was established with the responsibility to safeguard all aspects of safety and security in payments and have made great strides with new products, services, and standards, positively impacting all aspects of our current and future payment eco-system.

Ekata, a Mastercard company, is the global standard in identity verification, providing businesses worldwide the ability to link any digital transaction to the human behind it. Our Ekata Identity Engine, the first and only of its kind, uses complex machine learning to combine features derived from the billions of transactions within our proprietary network and the data from our graph to deliver industry leading risk assessment solutions.

As a Senior Platform Engineer you will help manage our production environment, providing a highly available and scalable platform for Ekata to serve our customers. The infrastructure team provides support to Engineering to help diagnose production issues and provide guidance on improving the availability and performance of our applications. This position also develops systems, automation, and tools to help make it easier for Engineering teams to deploy services in a fast, automated, and reliable fashion.

In this role You will:
- Build, scale and support high-availability Ubuntu Linux production and development systems in a public cloud environment.
- Work with tools such as Jenkins, Ansible, Argo CD, Terraform, CloudFormation, Resource Manager and many more to ensure that our stack is well represented as Infrastructure as Code.
- Manage and Improve security and availability monitoring for all services, ensure defined security policies are consistently implemented across all environments.
- Deploy workloads to multiple cloud environments, proven experience with all of the core services within AWS, Azure or GCP, including instance management, IAM configuration, Database, Caching and general support/troubleshooting.
- Have a developed understanding of the core components required to run Kubernetes and be able to build a cluster from scratch if needed.
- Have perfected the fundamentals of load balancing, service mesh and always looking for ways to improve availability and uptime.
- Maintain quality documentation for systems owned by the Infrastructure team.
- Use monitoring tools to identify and resolve issues before they happen. Have familiarity with Prometheus.
- Help other teams troubleshoot and solve failures and performance problems, participate in on-call rotations.
- Have a passion for working with Go, Python, Rust or even Bash to build custom tools and improve system integration. Take code ownership to the next level and act as an advocate for writing code that aligns with industry best practice.
- Have a solid grasp on networking fundamentals and can easily explain how DNS, DHCP and routing work in most environments.

### All About You
- Excellent spoken and written English skills. Is a team player and values collaboration.
- BS degree in Computer Science or equivalent experience.
- Proven skills with Linux or UNIX systems and related protocols/software with 3+ years’ experience.
- A command of Linux systems including troubleshooting, memory management, tuning, I/O subsystem, RAID, and security.
- Experience with provisioning tools such as Ansible/Chef/Terraform.
- Experience with Jenkins or other CI/CD tools.
- Programming aptitude in Go, Python, and Bash.
- Working knowledge of database systems such as MySQL or PostgreSQL.
- Experience building and deploying Containers, including orchestration tools such as Kubernetes, Mesos, or Docker Swarm.
- Experience with cloud providers (AWS, Azure, GCP) Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
- 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.

### Work Schedule & On-Call Requirements
- Standard working hours are ~10 AM – ~6/7 PM UTC, Monday through Friday.
- Participate in a follow-the-sun on-call rotation approximately every 1.5 months once the team is fully staffed.
- During the initial staffing period, team members should expect to participate in the on-call rotation approximately every 3-4 weeks until the team reaches full capacity.
- Ability to respond to and troubleshoot production infrastructure and networking issues during assigned on-call periods.

We cultivate a culture of inclusion ([https://www.mastercard.us/en-us/vision/who-we-are/diversity-inclusion.html](https://www.mastercard.us/en-us/vision/who-we-are/diversity-inclusion.html)) for all employees that respects their individual strengths, views, and experiences Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: 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.

## At a glance
- Posted by the employer: Oct 30, 2026
- First seen by OpenNash: Nov 1, 2026
- Last checked: Nov 1, 2026
- Listed for: 2 days
- Location: Dublin, Ireland
- Employment type: Full-time[Apply on Mastercard’s careers site →](https://mastercard.wd1.myworkdayjobs.com/CorporateCareers/job/Dublin-Ireland/Senior-Site-Reliability-Engineer_R-289950)

## Hiring at Mastercard
- Open jobs: 1,014
- New in the last 7 days: After two weekly collections
- Tracked since: Jul 10, 2026

[All Mastercard jobs](https://jobs.opennash.com/companies/mastercard/) · [Weekly hiring report](/reports/hiring/)

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