Senior Backend Kotlin / Java Software Engineer - Client Technology (m/f/x)

Join our Client Technology Tribe and help us create trusted, seamless, and secure experiences across the entire client journey.

Our teams work on products and platforms that support authentication, onboarding, consent management, client engagement, client support enablement, and public web experiences. We also build and maintain systems that ensure secure and compliant processing of client data, while enabling efficient internal operations and high-quality client communication through platforms such as Salesforce.

As a (Senior) Kotlin / Java Software Engineer, you will contribute to scalable client-facing and business-critical systems, working closely with product and engineering colleagues across different teams in Client Technology. Depending on team fit and business priorities, your focus may vary across areas such as authentication, onboarding, consent flows, client engagement, client support tooling, and public website experiences.

In this role, you will:

• Build and improve secure, reliable, and scalable systems that support the client journey end to end

• Design, implement, and operate services in production using Kotlin/Java and modern cloud-native technologies

• Contribute to authentication, onboarding, consent, engagement, and support-related solutions across Client Technology

• Work with AWS-based infrastructure and modern DevOps practices to deliver and run services effectively

• Write clean, testable, maintainable, and well-documented code with a strong focus on security and quality

• Collaborate closely with engineers, product managers, and other stakeholders to bring meaningful product improvements to production

• Help drive engineering excellence through strong technical ownership, pragmatic problem-solving, and continuous improvement

We are looking for engineers who combine strong software engineering fundamentals with a product mindset and a genuine interest in building trusted client experiences.

You bring:

• A degree in Computer Science, Engineering, or a related field, or comparable practical experience

• Strong professional experience in software engineering with Java and/or Kotlin

• Hands-on experience with Spring, REST APIs, GraphQL, JWT, Docker, and Git

• Experience building and operating microservices in production environments

• Practical experience with AWS or another major cloud provider

• Solid understanding of databases, including SQL and ideally NoSQL technologies

• A strong focus on writing well-architected, testable, maintainable, and documented code

• Strong analytical thinking in both technical and product-related problem solving

• Clear, open, and concise communication skills, with professional proficiency in English

Nice to have:

• Experience with authentication, security, consent management, onboarding, or other client trust-related domains

• Experience with GDPR, KYC, or other regulated-process environments

• Exposure to Salesforce, client support tooling, or client engagement platforms

• DevOps experience and confidence working with cloud infrastructure and deployment pipelines

• Experience in fintech, banking, or other regulated digital product environments