Senior Kotlin / Java Software Engineer - Client Technology (m/f/x)
Core
Build intelligent features and maintain scalable backend infrastructure for authentication, KYC, and client journey security in a Fintech platform.
Role type
Senior backend software engineer (Java/Kotlin)
Builds
Cloud-native microservices, authentication systems, and client-facing web platforms
Domain
Fintech, Cybersecurity, Cloud Infrastructure
Deliverable
production ML models | product features | infrastructure
Required skills
Java, Kotlin, Spring, AWS, Docker, GraphQL, RESTful API, SQL, NoSQL, Microservices architecture, JWT, Test automation
Preferred skills
Security engineering, DevOps practices, Financial industry domain knowledge
Technologies
AWS (ECS, Fargate, Lambda), Spring, Docker, GraphQL, Git
Responsibilities
Design and implement secure, scalable backend services; Integrate AI tooling into engineering workflows; Maintain cloud-native infrastructure; Write clean, testable, and documented code; Collaborate on end-to-end microservice projects
Seniority
Senior, hands-on IC