Senior Software Engineer (Backend)

Our client is a growing Swiss technology company that develops demanding systems in a security-relevant future market. In an interdisciplinary engineering environment, modern technical products are created with high demands on performance, stability, reliability, and maintainability. You can expect a professional team with flat hierarchies, clear goals, and plenty of room to actively shape backend architectures and development processes. The company offers • A full-time position with a workload of 80 to 100 percent • Workplace at the headquarters in Aadorf • A responsible senior role in the field of software engineering • Collaboration on high-performance backend services and product-related system components • Modern technologies and demanding technical products • A lot of leeway in architecture, code quality, performance, and maintainability • Close collaboration with experienced engineers and interdisciplinary departments • Flat hierarchies and clear goals • Flexible working hours with flexible working time • Attractive compensation and growing social benefits • Support for relevant further education and certifications • An environment where innovation and own ideas are actively promoted • Free coffee for all employees • Discounted fitness subscription directly next to the office • Regular team events, apéros, and joint meals • A long-term perspective in an exciting future market Our client wishes • Several years of professional experience in modern C++ development • Experience with C++17, C++20, or C++23 is an advantage • In-depth understanding of object-oriented design, concurrency, and memory management • Experience in cross-platform development • Experience with backend architectures, distributed systems, or high-performance computing • Knowledge of networking, TCP, UDP, REST, or gRPC • Experience with serialization like JSON or Protobuf • Secure handling of CMake, Git, and CI/CD workflows • Focus on clean, maintainable, and well-structured code • Strong skills in debugging, profiling, and optimization • Clear communication and solution-oriented work • Enjoy taking on technical responsibility and actively participating in decision-making • Very good German language skills • Experience with Embedded Linux or Windows development is an advantage • Knowledge of message queues or event systems like Kafka, ZeroMQ, or DDS is an advantage • Experience with SQL or NoSQL databases is an advantage • Experience with observability, Prometheus, tracing, or logs is an advantage • Knowledge of security best practices or highly reliable systems is an advantage • Experience with modern static analysis and sanitizers is an advantage What to expect • You develop, maintain, and improve backend services and software components with modern C++ • You actively participate in architectural decisions and technical discussions • You implement performant, scalable, and maintainable solutions for product-related systems • You integrate hardware, network communication, and backend services as needed • You ensure code quality through tests, documentation, reviews, and best practices • You systematically analyze performance problems and implement efficient solutions • You support junior engineers through reviews, coaching, and technical exchange • You participate in release planning, effort estimation, and risk analysis • You work closely with other engineers and departments • You bring in your expertise to continuously improve development processes • You ensure that backend systems remain stable, high-performance, and maintainable in the long term