Software Engineer, Elixir / Rust

Responsibilities

• Contribute to a distributed Virtual Power Plant controlling tens of thousands of home battery systems across eight countries in real time.
• Design, analyze, and improve algorithms for grid services — FCR, intraday trading, demand response, and spot optimization.
• Develop algorithms that optimize energy use within individual households, balancing self-consumption and cost savings under dynamic energy prices.
• Build and run simulations to model real battery behavior and validate algorithmic decisions.
• Analyze data streams to monitor system health and develop new signals that add value to the VPP.
• Implement protocols, backend services, and client features in a production Elixir/Rust codebase.

Requirements

• Experience with Elixir, Rust, or Erlang — or strong motivation to learn. We hire at all experience levels.
• Solid foundation in algorithms and mathematics; you enjoy working through problems that don't have obvious solutions.
• Comfortable reasoning about distributed systems, concurrency, or real-time constraints — or eager to develop that understanding.
• Experience with functional programming (Clojure, OCaml, Haskell, Scala) or Python is a plus.
• Fluent in English. German is a plus.