Platform Engineer

Lunar; Aarhus; Hybrid; DKK 600,000 - 900,000; Full time

Job summary

Lunar, a Nordic challenger bank, is hiring a Platform Engineer in Aarhus. You’ll join Esa, the Developer Enablement squad, to build a resilient platform as a product and ease friction for feature teams shipping great products.

You’ll own Kubernetes clusters in AWS, evolve the messaging backbone and databases, and navigate security/compliance in a regulated environment. This is hands-on with observability at the core.

Qualifications

• 3+ years in Platform, SRE or DevOps roles.
• Hands-on with Terraform and IaC tooling.
• Experience running workloads in Kubernetes and AWS core services.
• PostgreSQL knowledge, including basic tuning and RDS management.
• Experience with asynchronous messaging patterns and RabbitMQ.
• Focus on observability and production reliability.

Responsibilities

• Define and enforce patterns for resilient, cloud-native microservices that are observable, cost-efficient, and easy to maintain.
• Run, troubleshoot, and optimise the open source and cloud-native systems our platform runs on, keeping it highly available and reliable for the business.
• Own the lifecycle of our high-availability Kubernetes clusters in AWS, including the upgrade cycle every four months.
• Evolve our asynchronous messaging backbone and critical database systems for performance and reliability.
• Help shape our next-generation environments, including sovereign cloud and AI-optimised infrastructure operations.

Skills

Terraform

Kubernetes

AWS

PostgreSQL

RabbitMQ

Observability

SRE/DevOps

Tools

RabbitMQ

Job description

Banking hasn't changed much in decades. We're changing that. One product at a time.

Lunar is a Nordic challenger bank building the future of financial life with AI at the core. Our engineers, designers, and product people work on problems that actually matter. Making money simpler, smarter, and more rewarding for a million of registered users across the Nordics.

Fully licensed and founded in 2015, with offices in Copenhagen, Aarhus and Stockholm.

We move fast, we build with purpose, and we're just getting started.

As our new Platform Engineer you’ll join Esa, our Developer Enablement squad based in Aarhus, reporting to Jonas, working to build the invisible resilience that lets our product squads ship faster and more securely. You’ll be one of five hands‑on engineers running our platform as a product. You’ll take operational friction off our feature teams so they can focus on shipping great products.

What will you do?

• Define and enforce patterns for resilient, cloud-native microservices that are observable, cost-efficient, and easy to maintain.
• Run, troubleshoot, and optimise the open source and cloud-native systems our platform runs on, keeping it highly available and reliable for the business.
• Own the lifecycle of our high-availability Kubernetes clusters in AWS, including the upgrade cycle every four months.
• Evolve our asynchronous messaging backbone and critical database systems for performance and reliability. You’ll also help shape our next-generation environments, including sovereign cloud and AI-optimised infrastructure operations.
• Solve distributed systems challenges in a highly regulated environment, treating security and compliance as engineering constraints to design around, not roadblocks.

What are we looking for in you?

• 3+ years in a Platform, SRE, or DevOps role, ideally working with Terraform or a similar IaC tool.
• Hands‑on experience running workloads in Kubernetes and managing core AWS services.
• Practical experience with relational databases, preferably PostgreSQL, including basic performance tuning and managing RDS instances.
• Hands‑on experience with asynchronous messaging patterns and managing message queues, particularly RabbitMQ.
• A habit of making systems diagnosable, not just running, through solid observability and a focus on production reliability.

What you get.

• 4 days in the office. We're a team that builds together, thinks together, and moves together. Showing up is part of how we work.
• State of the art equipment. The newest computer, monitor, mouse, and keyboard. We want you to do your best work without anything slowing you down.
• Pension, health insurance, and enhanced parental leave. From your financial future to your family moments. We've got you covered.

While you hold on tight for us to get back to you, curious to see what we’re up to? Follow us on LinkedIn for business announcements and releases , check out our Instagram for an inside scoop on what it’s like to work here .

Depending on the regulations in the country where you will be employed, we will ask to see or obtain information about your criminal record. Please note that our employment is conditional upon you not being registered in RKI (Ribers Kredit Information).

We welcome applications from candidates of all backgrounds. If you need any adjustments during the recruitment process, please let us know