.Net Developer (m/f/x)

Permanent employee, Full-time · Köln

Our vision - your future

Cofinity-X is a joint venture founded in 2023 by BASF, BMW Group, Henkel, Mercedes-Benz, SAP, Schaeffler, Siemens, T-Systems, Volkswagen, and ZF. Established by industry experts, our company is primed for growth and is intended to be further led by professionals like yourself.

Your mission

Design, develop, and maintain high-performance and secure REST APIs
Perform database migrations and management, ensuring data integrity and
performance
Use Entity Framework for efficient data access and manipulation
Implement encryption and security principles to protect sensitive data
Contribute to the overall architecture for scalability and maintainability
Solve complex implementation issues creatively and analytically
Contribute to open-source projects, especially within the Eclipse Foundation
Develop unit tests and ensure an efficient end-to-end development process

Your profile

Bachelor’s degree in computer science, Information Technology, or related field and experience in backend development
Deep knowledge of .NET, Entity Framework, database migration, RESTful API construction, and encryption.
Proficient with Visual Studio Unit Testing Framework , NUnit, MSTest, xUnit.net, and API development/testing tools like Postman
Understanding of security by design principles
Ability to contribute to system architecture and identify improvements
Strong problem-solving skills focused on robust and innovative solutions
Demonstrated ability to take ownership of tasks and develop high-quality solutions
Basic understanding of open-source projects and cross-project collaborations

Why us?

Hybrid working model
Balanced work-life balance with flexible working hours
Annual training budget for continuous professional and personal development (1.500 EUR)
Free choice of hardware, including private use
Monthly lunch subsidy (up to 108 EUR)
Deutschland Ticket to Job Bike for environmentally friendly mobility options
Workation to work remotely from different locations within the EU
We offer every employee a pensions scheme (Betriebliche Altersversorgung) with company sponsorship
Regular team events to strengthen cohesion and foster a positive working atmosphere
A modern office with an impressive view of the Cologne Cathedral

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About us

Cofinity-X GmbH is based in Cologne and was founded in 2023. It is a joint venture of BASF, BMW Group, Henkel, Mercedes-Benz, SAP, Schaeffler, Siemens, T-Systems, Volkswagen and ZF. The vision of Cofinity-X is to run an open marketplace for the provision of own and third-party business applications and further services that enable secured and standardized data transfer along the automotive value chain in accordance with the Gaia-X and Catena-X principles with initial focus on the European market.

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Your application!

Thank you for your interest in Cofinity-X GmbH. Please fill out the following short form. If you have difficulties uploading your data, please contact us via email at application@cofinity-x.com.