Senior System Developer - Walley

SwedenCompetitive0 applicants

About this role

Empowering merchants, enabling seamless shopping.

At Walley, we are building payment solutions that make shopping experiences smooth and secure for millions of customers every year. Our teams are at the heart of that mission, and we are now looking for more amazing developers who want to help us take it to the next level.

About the Role

As part of our backend teams, you will work with one of Walley's most business-critical products that handles thousands of transactions every day. We follow a DevOps mindset, taking full ownership from idea to production, and continuously improving performance, reliability, and scalability.

You will work in a cross-functional, autonomous team that values quality, collaboration, and learning. Every line of code you write can have a real impact, both on our customers and our business.

Responsibilities

  • Design, build, and maintain scalable backend services in .NET and C#
  • Develop and optimize cloud-native systems in Azure
  • Work with infrastructure as code using Terraform
  • Ensure observability, maintainability, and performance across our systems
  • Collaborate closely with other developers, product managers, and designers to create high-quality, data-driven solutions
  • Contribute to continuous improvement and modern DevOps practices

Requirements

  • We believe you are an experienced developer who thrives in a collaborative environment and enjoys taking responsibility for the entire product lifecycle. You are pragmatic, curious, and humble, and you have a strong product mindset and passion for delivering great quality, resilient systems, and security.
  • You likely have:
  • 5+ years of backend experience, primarily in .NET and C#
  • Proven experience with Azure and Terraform
  • A DevOps mindset and experience with continuous deployment and cloud-native architectures
  • Hands-on experience with several of the following:
  • Azure Service Bus, CosmosDB, Elasticsearch
  • Kibana, Grafana
  • Kubernetes, ArgoCD
  • Akka
  • An interest in e-commerce

EU Requirements

Job Details

Posted30 May 2026
Closes29 June 2026

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