Backend Java Engineer for Scalable Data Systems – Flexible Hours

Comfone AG; Bern; On-site; CHF 110,000 - 140,000; Full time

Benefits offered by this job

Friendly work environment

Flexible and partly remote work time

Brand new office

Job summary

Comfone AG in Bern is seeking an experienced Software Engineer to join our on-site development team. You will develop scalable backend solutions for large-scale data processing and participate in the complete application lifecycle.

The role requires a solid Java background, familiarity with Spring Boot, Kafka, and Flink, and hands-on experience with testing frameworks like JUnit. Fluency in English is desired, Swiss or EU/EFTA work permit holders are preferred.

Qualifications

• Bachelor's degree or equivalent in CS/related field or Swiss apprenticeship.
• 2–6 years of backend development experience, focus on Java.
• Solid object-oriented programming skills in Java.
• Experience with testing frameworks (JUnit).
• Knowledge of databases; MongoDB is a plus.
• Familiarity with Spring Boot, Kafka and Flink is beneficial.
• Big Data or large-scale processing experience is a plus.
• Proactive ownership mindset and initiative to improve systems.
• Good English skills; other languages are a plus.
• Swiss/EU/EFTA work permit (B or C) preferred.

Responsibilities

• Develop scalable backend solutions for large-scale data processing.
• Handle full life-cycle application development from requirements to maintenance.
• Build high-quality, reusable software using Java and related tech.

Skills

Backend development

Java

JUnit

MongoDB

Spring Boot

Kafka

Flink

Big Data

Ownership mindset

English

Education

Bachelor's degree in Computer Science or related field

Swiss Federal Certificate of Competence (apprenticeship)

Tools

Spring Boot

Kafka

Flink

MongoDB

Job description

Comfone AG in Bern is seeking an experienced Software Engineer to join our on-site development team. You will develop scalable backend solutions for large-scale data processing and participate in the complete application lifecycle.

The role requires a solid Java background, familiarity with Spring Boot, Kafka, and Flink, and hands-on experience with testing frameworks like JUnit. Fluency in English is desired, Swiss or EU/EFTA work permit holders are preferred.