Cloud Backend Developer (f/m/d)

About the company

We believe in the positive power of energy – and in people who are ready to shape the future with their ideas and dedication. That’s why we established the EnBW Tech Hub in Portugal to drive innovation and develop digital solutions that support the energy transition and improve the way we work.

As a key pillar of EnBW’s technological transformation, the Tech Hub plays a vital role in our journey. EnBW is one of the largest energy companies, headquartered in Karlsruhe, Germany, employing approximately 30,000 people. ENBW IT SOLUTIONS, UNIPESSOAL LDA, a wholly owned subsidiary of EnBW, operates as an integral part of EnBW's IT division. In Lisbon, we bring together experts in IT, administration, project management and HR to collaborate in an agile, international environment and create smart, scalable solutions.

Your tasks

You are part of a software engineering team that builds and operates BAPC, our internal business platform for monetization, including services for billing, accounting, payment, and collection. You design, build, and operate cloud-native services on Azure Kubernetes Service, MongoDB Atlas, and other Azure services, increasingly supported by AI-coding agents. We use Go/Golang (preferred in this team), C#/.NET, Kotlin, and additional technologies in a complex, grown system landscape. You contribute to a high-quality engineering culture by creating clean, well-tested code (unit and integration tests), applying Domain-Driven Design and resilience patterns, and maintaining production workloads responsibly. You shape and maintain our infrastructure and CI/CD pipelines with a DevOps mindset, using infrastructure-as-code (Terraform) and Kubernetes containerization to keep delivery and operations efficient and reliable. You work closely with architects, business analysts, and process experts to clarify architecture and business requirements and support the customer journey.

Your profile

• Education: Degree in Computer Science, Software Engineering, or a comparable qualification
• Experience: 3+ years of professional software development experience using Go/Golang, C#/.NET, Kotlin, Java, or similar languages in a cloud environment (Azure preferred)
• Agile practices: Comfortable working in agile teams (Scrum/Kanban), with a continuous-improvement mindset, shared ownership, and pragmatic problem-solving
• Collaboration & communication: able to articulate and document technical decisions clearly, and collaborate effectively across teams and stakeholders
• Maintenance & operations: Willingness to share on-call responsibility and actively contribute to stable, observable, and secure production systems
• Nice to have:
• Experience with AI-based tools for agentic coding
• Experience with processes around B2C CRM and billing or payment
• Experience in a regulated environment or in the energy sector
• Kubernetes know-how: K8s concepts, Helm charts, operators
• Proficiency in gRPC, Protobuf, REST
• Language Skills:
• Proficiency in English (C1 level or higher)
• Portuguese (B1 level or higher)
• German language skills are a plus

About the department

Our Sales IT department is the Software Engineering powerhouse behind EnBW’s Sales, Marketing and Operations organization. We design, build and run scalable digital platforms and customer‑facing services for B2C businesses such as energy, utility services and e‑mobility. Working in cross‑functional, agile teams, we apply strong engineering principles such as Domain-Driven Design and Event-Driven Architecture, along with modern software engineering practices, cloud technologies and product‑oriented thinking to deliver high‑quality solutions and accelerate time‑to‑market for a digital energy future.

Our teams build and operate a broad portfolio of digital products almost entirely on the Azure cloud. This includes high‑traffic customer websites such as yello.de and enbw.com, mobile applications like the Zuhause+ App and the Yello App, as well as Mobility+, EnBW’s app for fast and convenient EV charging on the go. Behind these customer touchpoints, we develop and run a wide range of backend systems from energy core systems and EMP/CPO backends, to an Event-Driven integration platform and numerous APIs, including services for intelligent offer and pricing orchestration across sales channels.

If you are passionate about cloud-native backend development, thrive in a team that takes shared ownership of what it ships, and want to work on software that directly drives EnBW’s sales business we’d love to hear from you.

Contact

Are you interested? Apply online now! A cover letter is not required; we may ask a few job-specific questions in our application form. In addition to EnBW, our recruiting team also recruits for other Group companies. If you have any questions, please contact Boulay, Andrea | a.boulay@enbw.com. Everyone is embraced here, irrespective of gender, age, sexual orientation, heritage, faith, beliefs, or physical ability. Our information on data protection for applicants (f/m/d).