Senior .NET Backend Developer (m/f/d)
OnventisStuttgart, Baden-Württemberg, Germany • Dusseldorf, North Rhine-Westphalia, Germany
Posted October 27, 2025
Full Time
About the Company
Onventis is a cloud-based procurement solutions provider founded in 2000. The company offers an all-inclusive procurement system called Onventis Buyer, which streamlines purchasing processes from source to pay, enhancing financial control and compliance. With operations across five countries and a network of over 600k suppliers, Onventis serves midsize enterprises and delivers significant cost savings through automation and collaboration.
Job Description
Onventis is seeking a .NET Backend Developer to build and maintain cloud-native microservices architecture and refactor existing solutions. The role involves contributing to technical planning, ensuring high quality products, and collaborating with the product and team to achieve a high-performing procurement system. Strong curiosity, attention to detail, and passion for clean code are essential.
Requirements
- Must-have's: C# (.NET Core & .NET Framework)
- Clean code, microservices architecture, DDD
- CI/CD process understanding
- MS SQL, Redis, MongoDB
- Docker, k8s
- RabbitMQ; MassTransit
- Microsoft Azure Cloud
- Azure DevOps
- REST APIs
- Integration and Unit tests skills
- Git
Benefits
- Flexibility: Hybrid work model
- Mobility: Free parking, Job Ticket, JobRad leasing
- Health & Wellbeing: Urban Sports membership
- Career Growth: Structured on-boarding, training programs
- Culture: Friendly team spirit
- Rewards: Attractive salary package
- Pension plan plus discounts
- Referral rewards & sabbatical opportunities
