Senior Platform Engineer

Ireland: Mastercard Ireland Limited; Dublin; On-site; EUR 90,000 - 135,000; Full time

Job summary

Mastercard Ekata is hiring a Senior Platform Engineer to manage a high-availability Linux production and development environment across public clouds. You will build and scale infrastructure using IaC tools, ensure security and uptime, and deploy workloads across AWS, Azure, or GCP with Kubernetes at the core.

You will also develop custom tooling in Go, Python, and Bash, maintain thorough documentation, and participate in on-call rotations to keep services running smoothly.

Qualifications

• BS degree in Computer Science or equivalent experience.
• 3+ years’ experience with Linux systems and related protocols.
• 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 with Kubernetes, Mesos, or Docker Swarm.
• Experience with cloud providers (AWS, Azure, GCP).

Responsibilities

• Build, scale and support high-availability Ubuntu Linux production and development systems in a public cloud environment.
• Use IaC tools (Jenkins, Ansible, Argo CD, Terraform, CloudFormation, Resource Manager) to manage the stack as code.
• Manage and improve security and availability monitoring across all services.
• Deploy workloads to AWS/Azure/GCP, including IAM, databases, caching and general support/troubleshooting.
• Develop understanding of core Kubernetes components and build clusters from scratch if needed.
• Maintain documentation for Infrastructure team systems.
• Use monitoring tools (Prometheus) to identify and resolve issues before they happen; participate in on-call rotations.
• Write code/tools in Go, Python, Bash to automate and integrate systems.
• Have solid networking knowledge and explain DNS, DHCP and routing fundamentals.

Skills

Go

Python

Bash

Linux administration

Education

BS degree in Computer Science or equivalent experience

Tools

Jenkins

Ansible

Argo CD

Terraform

CloudFormation

Kubernetes

Mesos

Docker

AWS

Azure

GCP

Prometheus

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

• 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) for all employees that respects their individual strengths, views, and experiences.

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.

Everyone wants easier ways to pay; we invent them. Checkout lines are slow; we speed them along. Merchants want more sales; we give them data and insights. People need financial access; we connect them. Corporate purchasing is complicated; we make it simple. Commuters are busy; we speed them on their way. Governments need greater efficiencies; we help create them. Small businesses are virtual; we give them access to a world of buyers. Retailers want to fight fraud; we provide the tools.