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September 16, 2026

Senior Software Engineer (Java/JavaScript)

Senior • On-site

80,000 - 100,000 EUR/yr

Friedrichshafen, BW, Germany

Quick Facts

  • Role: Senior Software Engineer (Java/JavaScript)
  • Employment: Full-time, permanent
  • Focus: Web-based modem interface and network management system
  • Salary: approx. €80,000–€100,000 gross per year (depending on qualifications)

Description

You will work in an agile, interdisciplinary development team on hardware, embedded software, and application software. You will develop and optimize a web-based modem interface for stability, usability, and performance while also implementing and maintaining new features in an existing network management system. The role includes frontend work with JavaScript/React and backend work with Java SDK in a Cisco NSO environment, plus testing and build-system improvements.

Responsibilities

  • Develop and optimize a web-based modem interface (stability, usability, performance)
  • Design, implement, and maintain new functions within an existing network management system
  • Perform frontend development with JavaScript and React
  • Implement backend development using Java SDK in the Cisco NSO environment
  • Support build-system adaptation and optimization using Gradle, Jenkins, and Git
  • Participate in continuous improvements of development workflows, testing, and quality assurance

Requirements

  • Degree in Informatics, Communications Engineering, Electrical Engineering, or comparable technical qualification
  • Several years of experience in web application development with JavaScript and common web technologies
  • Solid knowledge of object-oriented software development with Java and safe use of relevant development tools
  • Familiarity with Linux as target platform and professional development environment
  • Team-oriented working style with structured, careful work in interdisciplinary projects
  • Very good English skills and good German skills for documentation and communication

Benefits

  • Flexible work hours without core working time; family-friendly arrangements
  • Mobile work/Home-Office up to 60%
  • Modern IT equipment, including a premium smartphone for personal and business use
  • Company support for bridge days (bridge-day rest)
  • 30 days of annual vacation
  • Modern office equipment, extensive social benefits, and team events, conferences, and events

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