Python Backend Engineer (kCalc) (a)

What this position has to offer:

• Interesting and responsible role in a growing engineering company
• Opportunities for professional development and continuous learning
• Collaborative and international working environment
• Long-term career perspective within a stable organization
• Part of the Swiss-based R&S Group

Job Summary

Are you interested in designing and maintaining the backend of an advanced engineering application?

As a recruiting partner of Rauscher & Stoecklin, we are looking for a kCalc Python Backend Engineer (a), 80–100%, for the location Krzeczów, Kraków, Poland.

In this role, you will contribute to the design, development, and maintenance of the backend of an engineering design and optimisation application. Your work will include building and optimizing RESTful APIs and managing data persistence.

You can look forward to a technically challenging role where your Python expertise contributes directly to modern engineering solutions, within the international Rauscher & Stoecklin Group environment.

What You Will Be Doing

• Design, develop and maintain the backend of an engineering design and optimization application
• Build and optimize RESTful APIs for web applications
• Manage data persistence using SQL databases and SQLAlchemy
• Collaborate with engineering and software teams to translate requirements into technical solutions
• Contribute to the continuous improvement and modernization of the application

What You Bring To The Job

• 3+ years of professional experience in Python backend development (Python 3.x)
• Strong experience building RESTful APIs using FastAPI or Flask
• Solid knowledge of SQL and relational databases, ideally including MS SQL Server
• Hands-on experience with SQLAlchemy (ORM)
• Experience using Python type hints and annotations
• Familiarity with real-time communication technologies such as Server-Sent Events (SSE) or WebSockets
• Ability to work with complex data integrations across different database systems
• Interest in or exposure to engineering or electrical engineering domains is a plus
• Strong problem-solving skills and ability to collaborate with cross-functional teams
• English: C1 – Advanced
• Polish: B2 – Upper Intermediate

Nice-to-Haves

• German: B1 – Intermediate

Team

The team at Rauscher & Stoecklin fosters a collaborative environment where innovation thrives. Expect to work alongside dedicated professionals who are passionate about creating impactful engineering solutions.

• Reports to: Senior Frontend Developer
• Colleagues: 3
• Team Language: English

About Rauscher & Stoecklin AG

Rauscher & Stoecklin is a medium-sized, traditional company with over 100 years of experience in the development, production, and distribution of high-quality electrotechnical products and systems for power distribution. Its product range includes transformers, switchgear for railway and overhead line networks, as well as high-current connectors that are used worldwide in demanding applications.

At its headquarters in Sissach (Switzerland), development, production, and quality assurance are centralized. Modern manufacturing technologies and in-depth technical expertise ensure maximum reliability and durability of the products. As part of the internationally active R&S Group, Rauscher & Stoecklin contributes to the implementation of powerful electrical infrastructure solutions in the energy, transportation, and industrial sectors.

The company meets constantly changing market demands with a high degree of innovation and flexibility and is therefore successfully on a path of expansion.

• Industry: Consumer Electronics