Siemens Engineering Senior

Senior Backend Engineer (Research & Development)

CHF 100'000 – 120'000 / year
ZÜRICH LLMRAGPrompt EngineeringVector Databases

Your mission will be…

  • Design, develop, and maintain AWS-based web applications and microservices using C# and Golang
  • Ensuring code quality, reusability, modularity, maintainability and security
  • Improving performance and scalability of developed software
  • Participation in requirements elicitation, communication with end customers
  • Improving development processes, including refactoring activities
  • Conduction of code reviews
  • Development and clarification of a system and functional requirements
  • Communicate with the representatives of the end customers and with other platform architects developed by the company

We are looking for someone with…

  • 7+ years of experience in industrial/commercial software development
  • Strong object-oriented programming skills
  • Practical experience with AI-native software engineering (e.g., LLM integration, RAG architectures, prompt engineering, or using vector databases)
  • Experience in designing and optimizing database schemas to support application requirements
  • Proficiency in the C# ecosystem. Solid experience with Golang
  • Experience with relational databases such as PostgreSQL, and cloud database services such as Amazon RDS
  • Proficiency in writing complex SQL queries and procedures
  • Experience with horizontal and vertical scaling technologies for data. Knowledge of methods to optimize database performance with large datasets.
  • Experience with NoSQL databases such as DynamoDB, MongoDB, Cassandra
  • Experience with RESTful API, WebSockets
  • Experience with spec-first code generation (openapi, protobuf)
  • Experience with AWS cloud services
  • Knowledge of basic DevOps tools and practices (CI/CD, IaC, Docker, k8s, monitoring & logging tools, automated testing and deployment strategies)
  • Strong Linux user skills
  • Communication skills and readiness to work in a team as well as individually
  • Upper intermediate English proficiency

Nice to have skills:

  • Working knowledge of Golang
  • Experience with semantic web technologies and graph APIs (SPARQL, GraphQL)
  • Understanding of energy and sustainability domain concepts
  • Experience with SOAP APIs
  • Knowledge and experience with data modeling tools such as Enterprise Architect, Erwin, PowerDesigner

What We Offer

  • Belong & Innovate: Work in diverse teams where every idea matters and innovation grows through collaboration and trust.
  • Flexibility that Works: Hybrid model, flexible hours, and a home office budget — because balance fuels performance.
  • Health & Well-being: Comprehensive health insurance, mental health support, and active sports communities to keep you feeling your best.
  • Grow Without Limits: Access world-class learning platforms, mentoring, and continuous development opportunities.
  • Purpose & Perks: Contribute to sustainability and volunteer initiatives, enjoy partner discounts, and take advantage of our convenient shuttle service.
Apply Now