> Markdown version of [/jobs/ext/4575466-software-engineer-systems-infrastructure](https://www.wearedevelopers.com/jobs/ext/4575466-software-engineer-systems-infrastructure). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - Systems & Infrastructure - **Company:** Qube Research & Technologies (qrt) - **Location:** France - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Automation of Tests, C++ (Programming Language), Code Review, Data Structures, Software Debugging, Memory Management, Python (Programming Language), Linux System Administration, Performance Tuning, Software Construction, Software Systems, Rust (Programming Language), Multithreading, Reliability of Systems, Golang, Programming Languages - **Published:** November 5, 2026 - **Apply:** https://startup.jobs/software-engineer-systems-infrastructure-qube-research-technologies-10683704 ## About the Role * Excellent computer science fundamentals, particularly algorithms, data structures and system design. * Strong proficiency in at least one programming language such as Python, Rust, C++, Go or Java. * Hands-on experience designing and building software systems, with a strong sense of ownership. * Good understanding of multithreading, asynchronous I/O, memory management and performance optimization. * Experience developing reliable, production-grade software, with strong debugging and testing practices. * Comfortable working in Linux environments. * Curious, proactive and comfortable tackling complex technical challenges. * Excellent communication skills and ability to collaborate effectively across teams. ## Description * Design and build high-performance, reliable software systems and reusable components. * Take ownership of technical design and implementation, contributing to architectural decisions and evolving existing systems. * Solve challenging engineering problems involving concurrency, performance, and system reliability. * Investigate and troubleshoot complex issues to improve system robustness and efficiency. * Contribute to code reviews, automated testing and engineering best practices. * Collaborate with researchers and engineering teams to understand requirements and deliver effective technical solutions.