Senior / Principal Software Engineer - Java, Spring Boot & Kafka (80-100%)

For our client, we are looking for an experienced Java / Spring Boot Software Engineer at a Principal level with pronounced Kafka expertise. You will develop high-performance, scalable applications for processing very large amounts of data and take responsibility for demanding technical solutions.

Your tasks:

• Development and optimization of high-performance backend applications with Java, Spring Boot, and Kafka

• Technical responsibility for demanding solutions as well as active shaping of the architecture and design of distributed systems

• Conception and implementation of scalable solutions for the reliable processing of very large data and transaction volumes

• Analysis of performance problems and development of sustainable technical improvements

• Independent development and convincing representation of technical decisions in cooperation with architects, developers, and other stakeholders

• Ensuring high code quality through automated tests and proven development practices

• Technical support for other developers as well as active knowledge transfer within the team

Your technical expertise

• In-depth, current practical experience with Kafka and Java, which you regularly use in productive projects

• 5+ years of experience in professional software development with very solid knowledge of Java and Spring Boot

• Proven experience with high-performance systems and the processing of large amounts of data

• Very good knowledge of software architecture, distributed systems, and performance optimization

• Experience with SQL, REST APIs, Docker, Kubernetes, and GitLab

• Knowledge of unit and integration testing, and ideally Splunk and Citrus

• Completed computer science degree (University/University of Applied Sciences) or comparable qualification

• You work independently, structurally, and solution-oriented

• You can explain complex technical issues understandably, justify decisions, and technically convince different stakeholder groups

• Very good German and good English skills

Your Tech Stack:

• Core Technologies: Java · Spring Boot · Kafka

• Architecture & Integration: Distributed Systems · REST APIs

• Database: SQL

• Container & DevOps: Docker · Kubernetes · GitLab

• Testing & Monitoring: Unit Testing · Integration Testing · Splunk · Citrus

• Methodology: Scrum

General Framework Conditions:

• Start: asap

• Workload: 80-100%

• Location: Bern (1-2 times per week on-site)

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