
Erfahrener Softwareentwickler (m/w/d)
Voltfang
Company Overview
Voltfang
Germany
2020
Business Model
Energy Storage
Development and production of sustainable energy storage solutions
Sales of energy storage systems, partnerships with renewable energy providers
Locations & Geography
Germany, Netherlands, France, Spain, Italy
Company Culture
Their mission is to provide innovative and sustainable energy solutions that contribute to a greener future.
They promote a collaborative and inclusive work environment that encourages creativity and innovation.
They offer various training programs and workshops to support employee growth and development.
Activities & Projects
They are currently working on a project to develop a new generation of battery storage systems that utilize recycled materials.
They have recently introduced a modular energy storage system that can be easily scaled for different applications.
They implement sustainable practices in their production processes, focusing on reducing waste and energy consumption.
Career Opportunities
Typical job openings include engineers, project managers, and sales representatives.
They offer competitive salaries, flexible working hours, and opportunities for remote work.
Contact Information
Last updated on 2025-03-24 | Report an issue
Stellenbeschreibung
Bei Voltfang bauen wir intelligente Batteriespeicher, die aus Elektroauto-Batterien bestehen – und dabei helfen, das Stromnetz zu entlasten und Energie sinnvoller zu nutzen. Damit diese Systeme zuverlässig, effizient und wirtschaftlich arbeiten, braucht es leistungsfähige Softwarelösungen. Genau hier kommst du ins Spiel.
Als erfahrene:r Softwareentwickler:in arbeitest du an der Weiterentwicklung unseres Open-Source-Energiemanagementsystems und gestaltest gemeinsam mit deinem Team die Software-Infrastruktur für moderne Energiesysteme. Du entwickelst Algorithmen, Schnittstellen und Automatisierungen, die echten Impact haben – für das Netz, für unsere Kund:innen und für die Energiewende.
- Weiterentwicklung und Pflege des Open-Source-Softwaresystems OpenEMS
- Implementierung von Regelungsalgorithmen für energiewirtschaftliche Anwendungen wie dynamische Strompreise, Intraday-Trading und Virtual Powerplants
- Entwicklung von Steuerungsalgorithmen auf Basis von künstlicher Intelligenz (KI) und maschinellem Lernen (ML) – sowie deren Integration in bestehende Softwarearchitekturen zur intelligenten Steuerung von Energiespeichersystemen
- Anbindung externer Energiesystemkomponenten (z. B. PV-Anlagen, Wallboxen, Wärmepumpen) über moderne Schnittstellen
- Aufbau automatisierter Prozesse für Konfiguration und OTA-Updates
- Enge Zusammenarbeit mit der Projektplanung und Pilotkunden zur Umsetzung skalierbarer Systemlösungen
Dein Profil
- Abgeschlossenes Studium oder Ausbildung im Bereich Informatik, Computer Science oder einer vergleichbaren Fachrichtung
- Fundierte Fachkenntnisse in Java oder einer vergleichbaren objektorientierten Programmiersprache sowie einschlägige praktische Erfahrung in der Entwicklung von verteilten Softwaresystemen – idealerweise im Open-Source-Umfeld
- Erfahrungen mit Continuous Integration und Deployment Pipelines
- Sorgfältige, selbstständige und lösungsorientierte Arbeitsweise sowie Freude daran, kreative Ideen einzubringen und technische Herausforderungen anzugehen
- Fließende Deutsch- oder Englischkenntnisse für eine reibungslose Kommunikation im Team
Wenn du Software für die reale Welt entwickeln willst – und Lust hast, mit offenen Technologien an der Energiezukunft zu arbeiten – dann freuen wir uns auf deine Bewerbung.
Voltfang – Wir geben Batterien ein zweites Leben. Du programmierst das System, das sie steuert.
Why us?
- Viel Eigenverantwortung und die Möglichkeit, Dinge wirklich zu gestalten
- Ein motiviertes Team, das gemeinsam etwas aufbauen will
- Flache Hierarchien, schnelle Entscheidungen und eine offene Kultur
- Ein Job mit Sinn – dein Beitrag unterstützt direkt die Energiewende
- Freie Nutzung der Velocities (E-Bikes) in Aachen
- Kooperation mit Urban Sports Club
- Zuschuss zum Jobticket
- Office Dog
- 30 Tage Urlaub
- Flexible Arbeitszeiten und hybrides Arbeiten
- Regelmäßige Team-Events zur Stärkung der Kultur
Your mission
Do you have a getting things done mentality, an eye for detail, creative ideas and like to take innovative approaches? Then Voltfang is the right place for you and you found the perfect opportunity to shape the energy management of the future together with your colleagues and actively contribute to the energy transition.
Your responsibilities include:
- Further development of the open source software system OpenEMS (https://github.com/OpenEMS/openems)
- Implementation of control algorithms for different industrial energy use cases such as dynamic electricity prices, intraday trading and virtual power plants
- Realization of AI/ML-supported control algorithms and their integration into existing software architecture
- Implementation of interfaces to components of the energy system such as PV systems, EV charging stations and heat pumps
- Automation of the configuration of energy management systems and OTA updates
- Close collaboration with project managers and pilot customers to develop standardized solutions
Your profile
- Completed training or studies in the field of informatics/computer science or related careers
- Sound specialist knowledge of Java or a comparable object oriented programming language as well as relevant practical experience in the development of software systems (ideally open source software such as https://github.com/OpenEMS/openems)
- Experience with continuous integration and deployment pipelines
- Independent and motivating way of working
- Enthusiasm, diligence and the ability to introduce and implement creative ideas
- Fluency in German or English for smooth communication within the team
Why us?
- Active contribution to climate protection & the circular economy
- Internal Hackathons
- Team bonding over bouldering
- Free use of the Velocities (e-bikes) in Aachen
- Cooperation with Urban Sports Club
- Subsidy for the job ticket
- Office Dog
- Flexible working hours and hybrid working possible
- Modern office space with shopping facilities nearby
We are a fast growing company that develops and produces sustainable electricity storage systems from qualified electric car batteries. In this way, we help manufacturing businesses and industry to become more environmentally friendly and less dependent on conventional energy sources. In this way, we can make a significant contribution to climate protection and take a decisive step towards a green future.
We rely on an experienced and motivated team that contributes its knowledge and skills to achieve our goals. Our corporate culture is characterised by cooperation and team spirit. Different departments all pull together in order to be able to look forward to a positive future together.
We strive for constant further development, which is why we are looking for employees who can contribute and take on responsibility in order to grow with us individually. We are not just any team - we are the Voltfam. Creativity, enthusiasm and fun play a decisive role for us.
That's why we are looking for talented employees who want to achieve long-term success together with us. If you feel addressed and would like to be part of an ambitious team, then get in touch with us!
We are looking forward to meet you,
Your Voltfam.
Enable a future worth living!
Equal opportunities for all: We welcome applications from people who are as diverse as we are and our tasks - regardless of gender, age, disability, religion, sexual orientation, ethnic origin and nationality or social background.
Do you have any further questions? Then feel free to contact us at [email protected]!
About the role
August 11, 2025
Full Time
Company
August 11, 2025
Hybrid
- Aachen, Germany
Experienced
UTC+02:00
Apply now
Job expired?Please let Voltfang know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
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