Senior Platform Engineer

Mastercard Payment Services Denmark A/S; København; On-site; DKK 950,000 - 1,200,000; Full time

Job summary

Mastercard Payment Services Denmark A/S is seeking a Senior Platform Engineer to build and sustain secure, scalable cloud infrastructure across AWS and Azure. You will implement IaC, automate workflows, and collaborate with product teams to deliver reliable cloud-native applications.

The role emphasizes Kubernetes operations, security alignment, and on-call support. Based in the Copenhagen region, it offers exposure to enterprise-grade platforms and modern infrastructure practices.

Qualifications

• Hands-on cloud engineering experience across AWS and Azure.
• Terraform and automation script development experience.

Responsibilities

• 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

Skills

Cloud engineering

Terraform

Kubernetes

Python

Bash

CI/CD

Linux

Security

Tools

AWS

Azure

Terraform

GitLab

GitHub Actions

Kubernetes

Job description

Placering
Ballerup

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.

Role

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 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.

• 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

Technology and Tools

• 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

Nice to Have

• 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 VPC/VNET design, routing, DNS, and connectivity patterns

Skills and Experience Required

All About You

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