LIVA Power Management Systems GmbH (''LIVA'') is a subsidiary of AMG Critical Materials NV in the B2B market for industrial and industrial energy storage systems (4 to 100+ MWh) for demand- and supply-side energy management to reduce energy costs and CO2 emissions. LIVA builds customized hybrid energy storage systems (Hybrid-ESS) for the implementation of the industrial energy transition. We strive for a consistently sustainable energy supply to ensure the prosperity of today's and future generations. We create innovative energy systems as part of the new green energy world. AMG Critical Materials N.V. is a global company for critical materials at the top of CO2 reduction trends. AMG produces highly developed specialty materials and offers vacuum furnace systems and services for the end markets transportation, infrastructure, energy as well as special metals and chemicals. AMG operates worldwide with production facilities in Germany, Great Britain, France, the United States, China, Mexico, Brazil, India, Sri Lanka and Mozambique and has sales and customer service offices in Japan. At the next time, we are looking for a permanent job for our location in Karlsruhe Software Developer Backend (m/w/div.) Type of job: Full time (40h/week)

You will strengthen our backend team in the development of new product functions, the migration of legacy structures and the systematic development of test infrastructure. You work independently, you tune closely with Frontend, QA and Requirements Engineering – Clean code and testability are working base, no option. Developing new backend features and products (C#/.NET) – from requirement to production-ready code Deleting and modernizing legacy systems (clean interface definition, gradual migration) Building integration test environments – automated, reproducible, close to production configuration Design and implement REST APIs and WebSocket connections for real-time data communication Early coordination of the interfaces with FrontEnd, QA and Requirements Engineering, canceling tickets together Code reviews, pair programming and clean code principles as a natural part of daily work

A successfully completed vocational training or studies in the field of computer science or a comparable area Multiannual Experience in Backend Development in C#/.NET, Entity Framework Core (Modeling, Migration, Query Optimization), RESTAPI Design and WebSocket Communication Experience in the application of clean code principles and build-up of integration tests (test container, test data, CI integration) Evaluate and prioritize legacy components and technical debt Knowledge of Docer, Kubernetes or container-assisted deployments and timescale databases (TimescaleDB) or PostgreSQL, CI/CD pipelines (GitHub Actions, GitLab CI or the like) Ideally gather first experience in the energy industry or with industrial control systems

A varied workplace with a lot of freedom of design in a highly motivated team with exchange at eye level Working in a successful and growing group of companies Flat hierarchies, fast decision-making and communication at eye level Attractive salary package including additional operating payments (currence/Christmas money, asset-effective benefits) Possibilities of mobile (hybrid) working and flexible working hours Additional occupational health insurance and pension provision in the context of the change in remuneration