Python developer – Energy Optimization Platform

Your mission

Role purpose

We’re looking for a backend developer to join the engineering team behind our Optimization Engine — a core product that does the smart management of batteries, renewables, and energy systems to cut costs and carbon. If writing clean, scalable APIs and wrangling real-world data sounds like your kind of thing, let’s talk.

What You’ll Be Doing

• Designing and building reliable backend services and RESTful APIs using Python and FastAPI.
• Collaborating on a tool for optimizing energy systems, batteries, and renewables — yes, the kind that help fight climate change.
• Helping shape and evolve our system architecture (microservices), including proposing a concept for the next stages of product development.
• Reviewing code, writing tests, and generally making the codebase a better place.
• Helping maintain our CI/CD pipelines, Dockerized environments, and cloud infrastructure (AWS).

Tech Stack You’ll Touch

Languages & Frameworks: Python, FastAPI

Infrastructure: Docker, Git, AWS (Lambda, ECS, S3, CloudWatch, SQS)

Databases: PostgreSQL, InfluxDB

Practices: Agile, Continuous Delivery, Automate-All-The-Things

Your profile

Required Skills

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• min 4years of professional software development experience.
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• Strong Python programming skills with OOP principles.
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• Experience building REST APIs using FastAPI.
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• SQL database experience.
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• Strong unit testing skills.

Nice to Have

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• Experience with Docker and application containerization.
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• Experience with AWS services.
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• GitLab/GitHub CI/CD pipeline experience.
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• Experience with monitoring, logging, and observability tools.
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• Experience with message brokers (SQS, RabbitMQ).
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• Familiarity with time series databases (InfluxDB/Timestream).
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• Background in energy systems or data processing.
• Why us?
• Motivating salary package.
• Quarterly bonuses & Sales Commissions
• Exciting Industry Sector which is full of innovations
• Professional growth, educational support and team growth opportunities
• 25 days of vacation and 5 sick days.
• Human-centric approach and team support.
• Opportunity for international training.
• Flexible, hybrid working hours (offices in Brno, Brumov-Bylnice and home office).
• Meal and phone allowance.
• Company events (Czech and Great Britain colleagues)
• Multisport card, fruit days