Our client provides advanced machine learning solutions for European energy markets. The company focuses on optimizing energy trading and flexibility management. Leveraging intelligent data, predictive analytics, and advanced optimization, it enables more efficient market operations while supporting the integration of renewable energy. Its innovative forecasting and data-driven decision-making enhance market reliability, improve renewable generation forecasting, and contribute to a more stable and resilient electricity grid.

The company specializes in trading energy products on European energy exchanges, supported by a proprietary in-house trading platform, analytical tools, and advanced models. Rather than developing solutions for external customers, it focuses exclusively on creating technologies that empower its trading teams to make better, faster, and more informed decisions. This approach allows the company to prioritize innovation without the constraints of competing client requirements, externally imposed deadlines, or UI/UX-driven design. Its work spans a wide range of technical challenges, from data collection and trader dashboards to sophisticated trading platforms and fully automated trading systems.

The tech stack:

Both frontend and backend are written in Scala, which means that we can share non-trivial logic between both sides easily and implement  communication protocols as needed, instead of being stuck with usual solutions that never really fit.

• Scala 2 (with the intention to move to Scala 3 and possibly Kyo)
• Scala.js, Laminar
• PostgreSQL
• Akka HTTP
• Slick/Quill

• Good understanding of principles used in functional programming (Scala experience is not necessary)
• Knowledge of basic principles (algebraic data types, common operations like map, fold, etc.)
• More advanced functional topics (functors, applicatives, monads, Kleisli arrows, subtyping/type variance, etc.)
• Knowledge of data structures, algorithms, and time/space complexity
• Familiarity with concurrency and parallelism (Threads, Locks, Actors, Task-level parallelism)
• Good proficiency with Linux development / command-line tools

Bonus points:

• Networking concepts (TCP, UDP, DNS, routing, switching, etc.)
• Linux system programming/administration
• Familiarity with hardware, working on bare metal, and performance characteristics
• Scala IO / Effect systems
• SQL databases
• Knowledge of multiple languages and paradigms (C, Haskell, Lisp)

• Work on-site with flexible working hours
• Fresh fruit in the office
• 25 days of vacation
• Multisport card Unlimited phone plan
• Sick days
• Modern offices in the heart of Prague - right in the middle of Wenceslas Square