Software Engineer

Salary: CHF 80'0 - 110'000 per year Requirements: We require a Bachelors degree in Computer Science, Data Science, or a related discipline, or a completed apprenticeship in computer science with a Swiss Federal Certificate of Competence. We require 2-6 years of professional experience in backend development, ideally with a strong focus on Java. We require solid understanding of object-oriented programming, preferably using Java. We require hands-on experience with testing frameworks such as JUnit. We require strong knowledge of database systems; experience with MongoDB is considered an advantage. We consider familiarity with technologies such as Spring Boot, Kafka, and Flink beneficial. We consider experience working with Big Data or large-scale data processing environments a plus. We require a proactive mindset with a sense of ownership, demonstrating initiative in improving systems and optimizing processes. We require good knowledge of English, written and verbal; additional languages are an advantage. We require Swiss or EU/EFTA citizenship, with a work permit B or C where applicable. Responsibilities: We develop scalable backend solutions for large-scale data processing. We engage in the full life-cycle application development, including user requirements, specifications, design, coding, testing, debugging, documentation, and maintenance. We implement high-quality, reusable, and well-tested software solutions using object-oriented programming languages such as Java. Technologies: Big Data Backend Flink Support JUnit Java Kafka Mobile MongoDB Spring Spring Boot ROS More: We are Comfone, a Swiss company based in Bern and a pioneer in global international roaming services. For more than 25 years, we have helped billions of subscribers stay connected and we continue to shape this constantly evolving industry. We operate with regional offices across Europe, Latin America, North America, and Asia Pacific, and our international team includes staff from more than 40 nationalities speaking more than 32 languages. We value diversity, equity, and inclusion in our daily operations. We offer a friendly and multicultural work environment, competitive salary, flexible and partially remote work time, a brand-new office with state-of-the-art equipment, SBB half-fare abonnement, mobile phone subscription and handset subsidy, special restaurant prices near our Bern HQ, onboarding with training across departments, support for advanced education, and regular company events including theme evenings, international client events, summer events, Christmas parties, and team events. last updated 28 week of 2026