CareerPlan

Java-Softwareentwickler Girocard Autorisierung (m/w/d)

Hannover, NIEDERSACHSENFull-time2026-10-31 → 2026-11-13

Core

Develop, operate, and modernize backend applications for the authorization of over 50 million SparkassenCards and 4 billion payment transactions annually.

Role type

Senior Java backend software engineer (payments)

Builds

High-volume transaction authorization systems for the Sparkassen banking group

Domain

Banking / Financial services / Payments

Deliverable

production ML models | product features

Required skills

Java, Spring Boot, Spring Batch, Database modeling (DB2, Oracle), Backend architecture, Agile methodologies, System debugging

Preferred skills

TypeScript, HTML, CSS, nginx, Apache, Tomcat, Node.js, IntelliJ, Git, CodePipeline, Design patterns, IT security awareness

Technologies

Java, Spring, Spring Boot, DB2, Oracle, nginx, Apache, Tomcat, Node.js, TypeScript, Git

Responsibilities

Conceive, implement, and optimize backend solutions for girocard authorization; Design and implement complex database models; Perform complex error analysis to improve processes and systems; Apply agile software development methods to shorten development cycles and ensure quality