Om jobbet:Aveer is looking for a skilled Backend Developer (.NET) to join an exciting assignment within online payments for a leading digital retail platform. You will play a key role in building scalable, secure, and high-quality backend solutions that power seamless omnichannel payment experiences.In this role, you will:Design, develop, and maintain backend services in ASP.NET CoreWork on integrations with payment gateways and service providersEnsure compliance with security, quality, and regulatory standardsCollaborate with cross-functional teams across the digital retail ecosystemContribute to CI/CD pipelines (preferably Azure DevOps) and support smooth deliverySolve advanced technical issues in complex, high-traffic environmentsYou have:Solid experience with .NET Core / ASP.NET Core for backend developmentProven experience designing and consuming RESTful APIsKnowledge of payment systems, gateways, or related integrationsGood understanding of security measures in online transactionsHands-on knowledge of CI/CD pipelines (Azure DevOps a plus)Experience in digital + physical retail environments is a strong advantageStrong problem-solving skills and ability to work in cross-functional teamsFluency in English (spoken and written)Onsite in Malmö