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# Software Engineer (Python) - Switzerland

- **Company:** Cern's Scientific Information Service
- **Location:** Lavamünd, Austria
- **Contract:** Temporary to permanent
- **Skills:** Application Programming Interfaces (APIs), Airflow, Software Applications, Automation of Tests, Big Data, Software Quality, Code Review, Continuous Integration, Database Applications, Relational Databases, Software Debugging, Django Web Framework, Elasticsearch, Python (Programming Language), Machine Learning, Search Technologies, Software Engineering, Software Systems, Systems Integration, TypeScript, ReactJS, Retrieval-Augmented Generation, Large Language Models, Backend, Api Design, Model Context Protocol, Data Pipelines, OpenSearch
- **Published:** October 1, 2026
- **Apply:** https://www.studentjob.at/stellenangebote/8791238-software-engineer-python-switzerland

## About the Role

* Strong professional experience in Python and software engineering, including backend development with Django or a comparable Python framework, API design, relational databases, and maintainable production software.
 * Experience with data-intensive applications or data processing workflows.
 * Good understanding of modern Large Language Model technologies and their integration into software systems.
 * Experience with Apache Airflow, React and TypeScript, OpenSearch or Elasticsearch would be an asset.
 * Development of application software, design, development and maintenance of production software applications, APIs and data processing workflows using Python and Django.
 * Knowledge of programming techniques and languages, strong knowledge of Python, software engineering principles, API development, relational databases and modern development practices.
 * Architecture and design of ICT systems, designing maintainable and scalable software architectures, integrations and data intensive applications.
 * Testing, diagnosing and optimisation of software, applying automated testing, monitoring, debugging, performance analysis, and continuous integration to ensure software quality and reliability.

## Description

* Develop, maintain, and operate scientific information applications using Python and Django, including APIs, data models, integrations, and data processing workflows.
 * Integrate machine learning and AI capabilities into production systems, using technologies such as Large Language Models, retrieval-augmented generation, semantic search, and the Model Context Protocol.
 * Evaluate emerging AI technologies and apply them to concrete scientific information use cases.
 * Ensure software quality through automated testing, code review, monitoring, and continuous integration., * You are a national of a CERN Member State or Associate Member State . Currently, we cannot consider applications from Pakistani, Lithuanian, Latvian, Cypriot and Croatian nationals, as the ceiling defined under Article II.5 of the Associate Membership Agreement has been reached.
 * You have relevant qualifications and professional experience.
 * If you have previously held a Staff contract at CERN, you will not be eligible for these positions.
 * Please pay attention to the additional criteria and requirements for this specific position and mentioned above.