Vattenfall is a European energy company with approximately 20 000 employees. For more than 100 years we have electrified industries, supplied energy to people’s homes and modernized our way of living through innovation and cooperation. We are now taking steps to make fossil-free living possible within one generation. To be able to reach this ambitious goal we are looking for talented individuals who, in addition to their passion for their own role, also have strong team spirit and want to contribute to supporting a meaningful corporate mission.

Do you want to contribute to building secure, reliable, and customer-friendly identity solutions that are essential for our digital products and services?

This role is within our Customer Recognition & Digital Identity (CRD) product team, which is responsible for Identity & Access Management (IAM) across Vattenfall’s customer-facing solutions.

As a WSO2 IAM Developer, you will design, implement, and optimize secure authentication and authorization flows. You will work with WSO2 Identity Server at the core of our IAM landscape, enabling millions of customers to seamlessly and securely access solutions like EV charging, solar panels, and home energy management.

Your work will directly contribute to:

• Designing and extending authentication methods
• Implementing advanced trust levels, role-based access, and session management.
• Integrating WSO2 IAM with front-end applications (App & Web), .NET back-end services, and SAP systems.
• Running experiments (e.g., A/B tests) to improve login flows and user experience.
• Ensuring compliance with security standards and accessibility requirements.

Your Responsibilities

• Develop, configure, and extend WSO2 Identity Server components (authentication flows, service providers, identity federation, adaptive authentication).
• Build and optimize API-driven integrations between WSO2, .NET microservices, SAP, and Azure services.
• Support product owners, UX, and security specialists in refining customer journeys for identity and access.
• Implement secure, user-friendly IAM flows including MFA, self-service account management, and delegated access.
• Automate CI/CD pipelines (Azure DevOps, YAML) for IAM components.
• Actively monitor and improve performance, security, and compliance of IAM services.

You are passionate about identity and access management and want to use your skills to help millions of customers interact securely with Vattenfall’s digital solutions.

You bring:

• Strong experience with WSO2 Identity Server (configuration, customization, extension).
• Experience with authentication protocols and standards (OIDC, OAuth2, SAML, SCIM).
• Knowledge of Java (for custom WSO2 extensions), and API integration with .NET and REST-based services.
• Familiarity with Microsoft Azure services (Web Apps, API Management, Container Apps, Cosmos DB) in IAM-related scenarios.
• Understanding of IAM security practices (MFA, session security, adaptive authentication, delegated authorization).

Nice-to-have:

• Experience with Angular or .NET to support end-to-end IAM integration

A challenging and independent job in an informal, dynamic working environment. You can play a part in shaping the future of a company where the only constant is change. Besides being a challenging and inspiring place to work, we value a great work atmosphere! We offer lots of opportunities for personal and professional growth.

Working with international colleagues, take part in Hackathon’s, learn from senior specialists, knowledge sharing sessions, it’s all part of your job! The basics:

• 42 Holidays per year
• Excellent work-life balance / home office (most of your team members work approx 2 days per week on-site)
• A base salary between 4000,- and 6700,- euro gross per month
• A great office space
• Many extra benefits on top!
   

At Vattenfall, we are convinced that striving for diversity helps building a more profitable efficient and attractive company. Therefore we seek a harmonious balance of employees in terms of gender, age, and ethnic and cultural backgrounds. We believe in work life balance and the flexibility to work from home.

For more information about the position you are welcome to contact IT Recruiter Folmer Koper via +31 6 38710915