Embedded Developer - part-time

Working Student, Part-time · Brno, Wattstor s.r.o.

Your mission

Role
Wattstor is seeking a talented Python developer to join its Embedded Team responsible for
developing and maintaining Wattstor's energy management system. In this role, you will
develop and optimize control logic for energy flows and facilitate communication with
external devices over ethernet, such as EV chargers, battery storage systems, photovoltaic
inverters, heat pumps, etc. The main focus is on real-time management and monitoring, with
code execution on edge controller devices. Our development environment is based on
Ubuntu Linux and Python. We maintain a dedicated testing laboratory for integration and
testing purposes.
This part-time role is open both for talented students and experienced developers.

Your profile

Required Skills and Qualifications

Desirable Skills and Qualifications
Fluency in Python and experience with Linux
Understanding of the importance of testing and appreciation for test-driven development
Ability to write testable and well documented code
Proficiency in Git workflows (e.g. pull requests, code reviews, branching strategies)
Strong English communication skills for technical discussions and documentation
Ability to drive projects to completion
Ability to work independently and effectively collaborate within a team

Desirable Skills and Qualifications

Experience with test-driven development and/or software-in-the-loop testing
Background in the energy industry
Knowledge of communication protocols and standards such as Modbus, OCPP, and
RS485
Familiarity with tools and technologies such as Docker, JavaScript, ZeroMQ, and
SQL/SQL-like databases (e.g. SQLite, InfluxDB)
Experience migrating codebases from Python 2 to Python 3

Why us?

What we offer:

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

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About us

Wattstor is a next-generation energy company accelerating Europe’s transition to net zero. We

specialise in delivering renewable energy systems, on-site energy optimisation, and dynamic tariffs for

businesses across the continent. Our mission is to make sustainable technology not only accessible

but also simple and impactful.

Backed by years of R&D and real-world deployment, Wattstor’s smart energy solutions are fast to

implement, easy to manage, and built to reduce both costs and carbon emissions.

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Join our team.

Thank you for your interest in Demo Daten GmbH. Please fill out the following short form. Should you have difficulties with the upload of your data, please send an email to demodaten@demo.de.