Backend Developer C#

cleverbridge AG
Köln, Germany
1 month ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Shift work
Languages
English
Experience level
Senior

Job location

Remote
Köln, Germany

Tech stack

Clean Code Principles
.NET
API
Agile Methodologies
Amazon Web Services (AWS)
Amazon Web Services (AWS)
Data analysis
Automation of Tests
C Sharp (Programming Language)
Cloud Computing
Software Quality
Databases
Fraud Prevention and Detection
PostgreSQL
Oracle Applications
SQL Databases
TypeScript
React
Backend
Vue.js
Angular
Front End Software Development
REST

Job description

As a C# Backend Developer, your main focus will be the development of scalable, high-performance, and secure server logic --- particularly in the areas of payment processing and fraud prevention. With your basic frontend knowledge, you'll understand the interface between backend and frontend, helping to create smooth, high-performing end-to-end solutions., * Develop and enhance modules in C#/.NET for our eCommerce/payment platform

  • Integrate APIs, external services, and databases (mainly Oracle and PostgreSQL)
  • Contribute to design decisions for scalable backend systems
  • Ensure code quality through reviews, automated testing, and clean code principles
  • Collaborate closely with Product Owners, QA, and frontend colleagues within the team
  • Support frontend tasks when needed (e.g., simple UI adjustments, optimizing interfaces)

Requirements

  • 3--5 years of experience in C#/.NET (.NET 8) development, ideally in a payment or eCommerce environment
  • Experience with databases (Oracle, PostgreSQL, or similar) and RESTful APIs
  • Solid SQL skills for data analysis are a plus
  • Knowledge of cloud technologies, preferably AWS (EKS, RDS, S3, etc.)
  • Basic familiarity with modern frontend frameworks such as TypeScript, React, Angular, or Vue is a plus
  • Interest in new technologies, clean code, and agile software development
  • Good command of English, both written and spoken
  • Team player mentality with a sense of ownership and responsibility

Benefits & conditions

At Cleverbridge, we believe in our people and their abilities to drive impact. That's why we offer a competitive salary, flexible working environment, and opportunities for growth and advancement. If you're ready to take the next step in your career, we want you on our team! Apply now and let's build something amazing together.

About the company

Cleverbridge is the smarter way to sell globally. As a premium Merchant of Record (MoR), we simplify global software sales by combining powerful platform capabilities --- including payments, subscriptions, taxes, and compliance --- with expert services that fuel growth across the entire customer lifecycle. From onboarding and implementation to ongoing optimization and strategic guidance, our team works as an extension of our clients', helping them remove friction, reduce risk, and expand into new markets with confidence.

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