Senior Platform Engineer

Mastercard; København; On-site; DKK 850,000 - 1,250,000; Full time

Job summary

Mastercard is seeking a Senior Platform Engineer to join the Global Open Banking team in Copenhagen. You will build and operate a multi-cloud platform across AWS and Azure, focusing on reliability, security, and scalable infrastructure.

The ideal candidate is hands-on and driven to grow in cloud engineering, platform automation, and modern infrastructure practices, collaborating with product teams to deliver cloud-native applications.

Qualifications

• 3–5 years hands-on experience in cloud engineering, DevOps, or platform engineering.
• Experience with AWS (preferred primary) and exposure to Azure services (VMs, networking, storage, AKS).
• Experience with Terraform (required) and modular infrastructure design and reusable components.
• Kubernetes experience with EKS, AKS, or similar.
• Proficiency in Python or Bash scripting.
• CI/CD experience with GitLab, GitHub Actions, or similar tools.
• Strong Linux systems knowledge and troubleshooting fundamentals.
• Security mindset with least privilege and audit readiness; exposure to PCI/SOC2 is a plus.

Responsibilities

• Build and support cloud infrastructure across AWS and Azure following secure-by-design and zero-trust principles.
• Develop, maintain, and improve infrastructure using Terraform and automation scripts.
• Assist in implementing new systems, tools, and frameworks to improve platform reliability and engineer productivity.
• Support build, maintenance, and upgrades across Dev, Stage, and Production environments.
• Work with logging, monitoring, and alerting tools to improve system visibility and reliability.
• Operate and support Kubernetes clusters (EKS, AKS, or similar) including scaling, upgrades, and troubleshooting.
• Partner with development teams to deploy and support cloud-native applications.
• Ensure infrastructure aligns with enterprise security standards (zero-trust, least privilege, audit readiness).
• Work with pipelines to enable automated and secure application delivery.
• Participate in on-call rotation to support platform stability.

Skills

Cloud engineering

DevOps

Python scripting

Linux

Tools

Terraform

Kubernetes

GitLab / GitHub Actions

AWS

Azure

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

Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships, and innovation, we help individuals, financial institutions, governments and businesses realize their greatest potential.

Our decency quotient (DQ) drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.

Overview

The Global Open Banking team is looking for a Cloud Software Engineer to support and evolve our multi-cloud platform (AWS and Azure).

This role focuses on building reliable, secure, and scalable cloud infrastructure while supporting application teams across environments. The ideal candidate is hands‑on, curious, and motivated to grow in cloud engineering, platform automation, and modern infrastructure practices.

In This Role, You Will

• Cloud Engineering: Build and support cloud infrastructure across AWS and Azure environments following secure-by-design and zero-trust principles
• Infrastructure as Code: Develop, maintain, and improve infrastructure using Terraform and automation scripts
• System Implementation: Assist in implementing new systems, tools, and frameworks to improve platform reliability and engineer productivity
• Environment Management: Support build, maintenance, and upgrades across Dev, Stage, and Production environments
• Observability & Operations: Work with logging, monitoring, and alerting tools to improve system visibility and reliability
• Kubernetes Support: Operate and support Kubernetes clusters (EKS, AKS, or similar) including scaling, upgrades, and troubleshooting
• Application Support: Partner with development teams to deploy and support cloud-native applications
• Security & Compliance: Ensure infrastructure aligns with enterprise security standards (zero-trust, least privilege, audit readiness)
• CI/CD Integration: Work with pipelines to enable automated and secure application delivery
• On-call Support: Participate in on‑call rotation to support platform stability

All About You

Skills and Experience Required:

• Experience Level: 3–5 years of hands‑on experience in cloud engineering, DevOps, or platform engineering
• Cloud Platforms:
• Working experience with AWS (preferred primary)
• Exposure to or working knowledge of Azure services (VMs, networking, storage, AKS)
• Infrastructure as Code:
• Experience with Terraform (required)
• Familiarity with modular infrastructure design and reusable components
• Kubernetes:
• Basic to intermediate experience managing Kubernetes clusters (EKS, AKS, or similar)
• Understanding of networking, scaling, and RBAC concepts
• Programming/Scripting:
• Proficiency in at least one scripting language (Python or Bash preferred)
• CI/CD Pipelines:
• Experience with GitLab, GitHub Actions, or similar tools
• Linux Systems:
• Strong working knowledge of Linux systems and troubleshooting fundamentals
• Security Mindset:Understanding of secure cloud design principles (least privilege, network segmentation, identity‑based access)
• Exposure to audit/compliance environments (PCI, SOC2, or similar is a plus)
• Networking Fundamentals:
• Understanding of VPC/VNET design, routing, DNS, and connectivity patterns

Nice to Have

• Experience with AKS (Azure Kubernetes Service)
• Exposure to WAF or edge technologies (Cloudflare, Akamai, Azure Front Door, etc.)
• Understanding of service mesh or advanced Kubernetes networking
• Experience with cloud cost optimization practices
• Exposure to multi-account / multi-subscription architecture

Technology and Tools

• Cloud: AWS (EKS, EC2, IAM, VPC), Azure (AKS, VNET, Storage, IAM)
• Infrastructure: Terraform
• Containers: Kubernetes
• CI/CD: GitLab or equivalent
• OS: Linux
• Languages: Python / Bash (Go is a plus)

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.