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Java Backend Developer (m/w/d)

Alsterdorf, Hamburg🌐 Remote💼 Full-time🗓 2026-06-23 → 2026-08-09

Core

Designing and implementing robust API solutions and integration systems with a focus on security and distributed architectures.

Role type

Senior Backend Engineer (Java/Kotlin)

Builds

Modern backend applications and API-first integration systems

Domain

Enterprise IT / Distributed Systems

Deliverable

production ML models | product features

Required skills

Java, Kotlin, Spring/Spring Boot, API Design, Identity & Access Management, Zero-Trust principles, Asynchronous Messaging (Events & Messaging), OAuth2/OpenID, Kafka, RabbitMQ, Clean Code, Architecture Principles

Preferred skills

Experience with distributed systems, Agile software development

Technologies

Java, Kotlin, Spring, Spring Boot, Kafka, RabbitMQ, OAuth2, OpenID

Responsibilities

Conceive and implement robust API solutions and integration systems considering security aspects; Develop and evolve modern backend applications within an API-first architecture; Actively shape architectural decisions and strategic competency building in distributed systems; Implement Identity & Access Management concepts and Zero-Trust principles in system designs; Handle productive projects with a focus on asynchronous integration through events and messaging; Provide knowledge transfer and mentoring to team members.

Seniority

Senior, hands-on IC

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