Software Developer (Interface Design & Specification)

Quick Facts

• Role: Software Developer (Interface Design & Specification)

• Focus: Device-to-Device interface conception, design, and specification

• Working model: Hybrid/flexible (on-site or mobile depending on tasks)

Description

You will be responsible for the conception, design, and specification of internal and external Device-to-Device interfaces and help ensure a stable, future-proof system architecture. You will analyze requirements independently, assess technical feasibility, and implement solutions in a structured way along defined development processes. Working closely with European development sites and as part of a Scrum team, you will coordinate technical details and continuously improve system solutions.

Responsibilities

• Conception, design, and specification of internal and external Device-to-Device interfaces

• Ensure stable, future-proof system architecture

• Independent requirements analysis and technical feasibility assessment

• Structured implementation aligned with defined development processes

• Coordinate technical details with European development sites for smooth integration

• Contribute ideas within a Scrum team and drive continuous system evolution

Requirements

• At least five years of development experience in Linux or embedded environments

• In-depth technical expertise

• Practical experience designing and implementing interfaces

• Experience with MQTT and Protobuf and ability to use them confidently in projects

• Very good German and English skills for international communication

• Solution-oriented, structured way of thinking and hands-on mentality

• Interest in IoT network architectures and IT security topics

• C-ITS/ETSI experience is a plus

Benefits

• Tailored training opportunities

• 30 days of vacation and special leave

• €50 per month tax-free via a company card

• 40% employer contribution to company pension plan

• Company savings benefits

• (E-)bike leasing

• Annual €160 subsidy for health prevention and fitness programs

• Free external counseling for professional, private, or health-related questions