Senior Fullstack Engineer - Identity Access Management (d/f/m)

Why Scout24?
Scout24 is home of ImmoScout24, Germany’s #1 for real estate. With ImmoScout24 we have been revolutionizing the real estate market in Germany and Austria for more than 25 years. Our goal is to build a digital ecosystem that brings homeowners, seekers, and agents together. Finding the right home and property is one of the most important decisions in life. So is your career! #WorkingatScout24 means being part of a diverse and inclusive team of around 1100 colleagues and 58 nationalities. We embrace difference and celebrate individuality. By encouraging open mindedness and authenticity we enable a true learning culture and prepare the ground for personal development. Mistakes are a chance to grow and to innovate. Together we act proactively, strive for improvement, and take responsibility. We talk about success and challenge while treating each other with respect because we are #oneteam.

If this sounds interesting to you, we would love to see you joining us! Even if you may not tick all the boxes of the job requirements, we are happy to hear about the value you can add to the team. Grow with us!. Welcome home!

Aside from our people and company culture we are offering awesome benefits that make Scout24 a great place to work!

• Compensation: A competitive salary package and a bonus on top.

• Flexibility: We offer a hybrid work model with three days of on-site work per week in the office, and you can organize the remaining days as you wish. We offer you 30 days of vacation per year.

• Work from abroad: We offer you the possibility to work from abroad for 10 days per year, subject to the business requirements of the company and team.

• Relocation: Our relocation agency supports you with your visa process and an attractive relocation package.

• Use our products: As an employee you can take advantage of our plus membership for tenants on ImmoScout24 to find a new place to live.

• Development: Dedicated learning time per month, online courses on our ScoutAcademy, regular book challenges, structured feedback, “Lunch & Learn”-Events and individual career paths to push your career to the next level.   

• Have kids? We'll support you with a professional family service, which helps you to find a childcare center or offers emergency childcare.  

• Furry feel good manager: Bring your dog to work (upon approval, as we prioritise the well-being of our employees and ensure that our dog policy is considerate of allergic individuals and prevents overcrowding on each office floor).

• Mobility: We subsidize public transport or Job Bikes.

• Commitment to sustainability and Diversity, Equity & Inclusion (DEI): We have clear environmental and climate protection goals and are involved in social activities and charitable organizations throughout the year. We live the diversity. Our theme weeks on diversity, mental well-being, and other social issues give us time and space to develop ourselves on DEI and sustainability.

• Pension scheme: We offer a company pension scheme and support your own contribution with an attractive subsidy.

• Most innovative office: Our office is barrier-free and in the heart of Berlin right at the central station. It was awarded for the most innovative office concept. We have an own gym with regular courses, napping room, rooftop terrace, organic coffee, cafeteria, 100% green electricity and a massage therapist that comes in once a week.

• Health: Life Situation Coaching, regular health check ups

• We are a tech company: We work with the latest technical tools and hardware. 

As a Senior Fullstack Engineer, you will play a key role in designing, developing, and deploying secure, user-focused identity and access management (IAM) solutions across the Scout24 digital real estate ecosystem. You will work in diverse, cross-functional teams to build scalable, performant, and secure applications, integrating Single Sign-On (SSO), Identity Federation, and Multi-Factor Authentication (MFA) capabilities. Leveraging modern technologies like AWS, Java/Kotlin, React, and Okta, you will ensure seamless and secure user experiences while protecting sensitive data.

How your role will look like:

• Design and implement authentication and authorization systems that align with business goals and compliance needs.

• Develop secure backend logic using Java or Kotlin with Spring and serverless TypeScript, and user-friendly interfaces in React.

• Integrate and administer Okta, implementing OAuth 2.0, OpenID Connect (OIDC), and custom sign-on policies and rules.

• Develop and automate identity workflows using Okta Workflows and monitor and troubleshoot SSO systems to ensure reliability.

• Manage API security & token management, safeguarding communication between distributed services.

• Own the full development lifecycle following the “You build it you run it” principle.

• Promote engineering excellence by mentoring others, advocating for clean code, continuous delivery, pair programming, and test-driven development.

• Continuously evaluate and improve security, scalability, and usability of IAM systems by staying abreast of current trends and best practices.

What you need to succeed:

• Bachelor’s degree in computer science or a related field.

• Significant professional experience as a Senior Fullstack Engineer, working on secure, distributed, cloud-based systems.

• Expertise in both backend (Java/Kotlin, Spring) and frontend (React, TypeScript) development.

• Strong hands-on experience with Okta administration and integration, including automation, custom policies, and monitoring.

• In-depth knowledge of OAuth 2.0, OpenID Connect (OIDC), SSO, MFA, Identity Federation, and API security/token management.

• Familiarity with AWS services and Infrastructure as Code (IaC) principles.

• Proven ability to collaborate with product managers, UX designers, and stakeholders to deliver secure and user-friendly solutions.

• Excellent communication and leadership skills, with experience mentoring engineers and promoting secure engineering practices.

• Passion for technology, curiosity, and commitment to delivering high-quality, secure, and maintainable software.

• Experience leveraging AI tools to drive problem-solving and productivity, maintaining effective human oversight and judgement.

We aim to further enhance the diversity of our company and support the professional development of people with disabilities. We have a disability representative who will assist you throughout the application process. If you require this support, please let us know in advance.