Greenstone Energy GmbH is a fast-growing company in the field of sustainable energy solutions. Since 2015, we have been committed to providing climate- and environmentally-friendly energy supplies using 100 percent renewable energy. Our best-known brands are VeganStrom and New Energy Cloud. This makes us not only pioneers in the field of animal-friendly green electricity offers, but also technologically innovative.
Our team currently consists of around 25 people and we expect to grow to roughly 40 employees over the next 12 months as we expand our customer base.
We are looking for a Product Owner to ensure that business requirements are translated into high-quality software that creates real business value.
Level: Mid-level Location: Berlin / Hybrid
Your role
You ensure that business requirements are translated into high-quality software that creates real business value. Working closely with Product Management, business stakeholders, and the engineering team, you take ownership of the operational product development process—from requirements engineering and backlog management to testing and release validation. You are a strong analytical thinker who challenges assumptions, asks the right questions, and helps the team build the right solution—not just the requested one.
Key responsibilities
Requirements Engineering
· Gather, analyze, and challenge business requirements
· Collaborate with business stakeholders and software engineers to clarify needs and identify the underlying business problem
· Translate requirements into clear user stories and measurable acceptance criteria
· Document business processes, workflows, and functional specifications
· Ensure requirements are complete, consistent, and ready for development
Product Backlog Management
· Own and continuously maintain the operational product backlog
· Drive backlog refinement sessions
· Prepare sprint planning by ensuring stories are well-defined and prioritized
· Track requirements throughout the development lifecycle
· Identify dependencies, risks, and delivery bottlenecks
· Support Product Management in balancing business value, technical effort, and delivery speed
Quality Assurance
· Define acceptance criteria and test scenarios
· Coordinate and perform functional and user acceptance testing (UAT)
· Validate delivered functionality against business requirements
· Document, prioritize, and track defects
· Support release readiness and production validation
Collaboration
· Act as the primary interface between business teams and software engineering
· Work closely with Product Management, architects, and developers
· Facilitate communication between technical and non-technical stakeholders
· Help establish best practices for requirements engineering, backlog management, testing, and documentation
· Coach less experienced Product Owners or Business Analysts where appropriate
What you bring:
Experience & Skills
· Several years of experience as a Product Owner, Business Analyst, Requirements Engineer, or similar role
· Strong experience working in Agile software development environments (Scrum, Kanban)
· Excellent analytical and structured thinking
· Ability to challenge requirements and identify the real business need
· Experience with Jira, Confluence, or similar collaboration tools
· High attention to detail without losing sight of the bigger picture
· Excellent communication and stakeholder management skills
· Fluent in English
Mindset
· Pragmatic and solution-oriented approach to problem solving
· Strong ownership mindset and pragmatic decision-making
· Comfortable working in a growing startup environment
· Collaborative and able to work across teams
Nice to Have
· Experience in the energy industry (utilities, retail energy, billing, metering, market communication)
· Experience with SaaS products and cloud-based software platforms
· Understanding of APIs, microservice architectures, and modern software development practices
· Experience with test management or test automation
· Familiarity with AI-assisted development tools (e.g. GitHub Copilot or Cursor) to improve productivity where appropriate
We offer you
· The opportunity to shape our EaaS-Platform
· Close collaboration with leadership and cross-functional teams
· A pragmatic and collaborative working environment
· Flexible working arrangements (Core working hours 10 am to 3 pm))
· A modern office well connected near Potsdamer Platz with the option to work partially from home
· Employee´s perks: discounted electricity tariff, Tuesday to Thursday, lunch in the office is on us!
Gehalt: ab 48.000,00€ pro Jahr
Leistungen:
- Aktienoptionen
- Betriebliche Altersvorsorge
- Flexible Arbeitszeiten
- Kostenlose Getränke
- Preisnachlässe auf Produkte/Dienstleistungen des Unternehmens
Arbeitsort: Zum Teil im Homeoffice in 10963 Berlin Kreuzberg
