Senior Full-Stack Software Engineer m/f/d, ZugFor our client from the diagnostic environment, we're looking for an experienced and Senior Full-Stack Software Engineer (m/f/d) to join our team and play a
key role in overhauling our instrument software's legacy GUI. You'll be instrumental in developing modern, robust, and compliant solutions across the full stack in a regulated environment. If you're passionate about both
elegant front-end user experiences and resilient back-end architectures, we want to hear from you!
start date: Nov/Dec 2025 or Jan 2026
end date: one-year-contract (with a chance onto extension)
workload: 80-100% - with max. 50% remote
location: Rotkreuz (CH)
work model: Contracting
Your Key Responsibilities: - Design, develop, and maintain high-quality software across the full stack for our core instrument software
- Play a key role in building and evolving robust back-end controllers using C#/.NET that interface with instrument hardware and handle data processing
- Implement the new front-end user interface using React and TypeScript, replacing the existing legacy GUI for instrument management
- Collaborate closely with project leaders, Testers, and other engineers to define, estimate, and deliver features
- Ensure all development practices and delivered software meet the stringent requirements of a regulated environment, including documentation, testing, and compliance standards
- Participate in code reviews, design discussions, and mentoring junior team members
- Diagnose and resolve complex technical issues, bottlenecks, and performance challenges related to software-instrument communication
Your Qualifications: - 5+ years of professional software development experience
- Deep expertise with C# and the .NET framework (or .NET Core) for building backend services (e.g., RESTful APIs, device communication layers)
- Proficiency in modern front-end development using React (or a similar modern framework like Angular/Vue) and TypeScript
- Experience working in a regulated industry (e.g., Medical Devices, Scientific/Lab Equipment) with a strong understanding of compliance, security, and quality assurance best practices.
- Excellent communication skills in English and a proven track record as a versatile team player who thrives in a collaborative, cross-functional setting
Nice to have:
- Experience working with instrumentation
- Experience in tackling and successfully executing a legacy system overhaul or modernization project
- Knowledge of Linux operating systems, including shell scripting and system services, is valuable for deployment and debugging on the instrument
- Knowledge in the area of networking or cybersecurity
- Familiarity with secure coding practices
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