Job
- Level
- Senior
- Job Field
- Application, Back End
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Location
- Aachen
- Working Model
- Hybrid, Onsite
Job Summary
You will be responsible for the architecture and development of complex .NET applications while working closely with team members in pair programming and integrating innovative AI models.
Job Technologies
Your role in the team
- As a Senior Software Engineer, you are the technical anchor in one of our client projects.
- You will be responsible for the architecture and implementation of data-intensive, technically complex applications in the .NET environment with full-stack components in TypeScript/React and an expanding AI component.
- You work closely with Product Owners, Data Scientists, and subject matter experts, helping the team grow (Pair Programming, Code Reviews) and ensuring that what we build is clean, testable, and maintainable.
- Design and implementation of sophisticated backend and full-stack solutions in C# / .NET.
- Domain modeling of complex rule and data structures - from requirements to production system.
- Integration of AI models (LLMs, classifiers, recommendation systems) into existing and new applications.
- Development and operation of data and rule pipelines, including database design (MS SQL, Oracle, PostgreSQL).
- Responsibility for testing, CI/CD, and code quality.
- Pair Programming, Code Reviews.
- Participation in technical decision-making across project and client boundaries.
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Our expectations of you
Qualifications
- Very strong .NET / C# profile at production level.
- Practical experience with relational databases (MS SQL, Oracle, or PostgreSQL) and data-intensive applications.
- Proficient in Cloud technologies (preferably Azure), Docker, Kubernetes, Git, and modern CI/CD pipelines.
- Independent, structured working style and enjoyment of Pair Programming and Code Reviews.
- German negotiation level, fluent in English.
- Strong communication skills and confidence in direct customer contact: You feel comfortable working within the customer team, speaking with technical departments, and representing technical decisions.
- Willingness to occasionally be onsite at the client's location (e.g., in NRW).
- Fluent in German, business fluent in English.
Experience
- At least 5-10 years of professional experience in software development.
- Experience in software architecture and domain modeling of complex business logic.
- Interest and initial experience in integrating AI / LLMs into production software.
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What we offer
- Permanent employment at Yukawa with the best-of-both-worlds setup: You work deeply on client projects but have a stable, highly skilled team backing you.
- Hybrid working: predominantly remote, with regular on-site days at the client and joint Yukawa team days.
- Challenging projects directly within real corporate environments.
- AI running in production, not in PowerPoint.
- Real impact on the customer: You will be perceived as part of the customer team and will contribute to shaping it.
- Small, highly specialized Yukawa team as a home base: short decision paths, a lot of responsibility.
- High-quality hardware of your choice.
- Personal development budget (conferences, books, certificates).
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Topics You Will Work On
Job Locations
About Your Employer
Yukawa Exponential Gmbh
Yukawa Exponential GmbH, based in Aachen, is a technology company focused on software development and digital solutions. The company offers integrated products and solutions in the areas of hardware, cloud, and artificial intelligence, and is actively involved in the development of IoT applications, platforms, and apps. With a small, specialized team, Yukawa focuses on architecture, development, and digitalization.
Description
- Company Type
- Established Company
- Working Model
- Hybrid, Onsite
- Industry
- Internet, IT, Telecommunication
Senior .NET Backend Engineer
- Location
- Aachen
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
