FREELANCE Software Developer C++ (m/f/d) // Signaling Technology// Long-term // Exciting Project

Project overview

My client, a renowned company in the railway sector, is looking for a highly qualified C++ Software Developer (m/f/d) to support a demanding project.

In this role, you will be responsible within an agile team for the conception, design, and implementation of robust and performant C++ software for modern signaling and control systems. With your deep technological C++ know-how, your experience in safety-critical software development (SIL 4), and your structured approach to requirements management, you will make a decisive contribution to the approval and safety of modern signaling systems.

Position: Software Developer C++ (m/f/d)

Responsibilities

• Conception, design, and implementation of robust, performant C++ software for modern signaling and control systems
• Development in compliance with strict safety standards for the railway industry (esp. DIN EN 50128 / SIL 4)
• Analysis, specification, and management of software requirements, as well as complete traceability in the requirements environment
• Ensuring complete traceability of requirements to test cases and results in Polarion
• Conducting code reviews, creating unit and integration tests, and supporting the safety assessment and approval processes

Requirements

Are you currently available and possess the required competencies? Then contact us today with your profile and hourly rate at *@*.de and secure your project with an exciting client.

Sincerely,

Tom Krüger

• Successfully completed degree in Computer Science, Electrical Engineering, Technical Computer Science, or a comparable qualification
• Several years of experience in object-oriented software development with C++
• Experience in the development of safety-critical software (Functional Safety), ideally in the railway context (SIL 3 / SIL 4 according to CENELEC / EN 50128)
• Practical experience with Polarion
• Ideally, prior knowledge of signaling system architectures, train control systems (e.g., ETCS), or railway-specific protocols
• Very good German and good English skills, spoken and written.

Project details

Earliest start 12/01/2026 / latest start 01/04/2027

Utilization: Full-time

12 months with option for extension

Hybrid - Lower Saxony region

• Start: 2026-12
• Duration: 12 Monate
• Remote: hybrid
• Location: Hannover, Deutschland, DE
• Languages: German