Senior C++ Software Engineer (Endpoint Agent, OS Internals)

• 07 July 2026 • 100% • Indefinite duration • Lausanne Senior C++ Software Engineer (Endpoint Agent, OS Internals) • Full-time • Department: Data Platform • Department: Data Platform • Division: Engineering Company Description Nexthink is the leader in digital employee experience software. The company provides IT teams with unprecedented visibility to see, diagnose, and resolve large-scale problems affecting employees everywhere, with any application or network, before employees even notice the problem. As the first solution to enable IT to shift from reactive problem-solving to proactive optimization, Nexthink allows its more than 1,500 clients to offer better digital experiences to more than 25 million employees. With two headquarters in Lausanne, Switzerland, and Boston, Massachusetts, Nexthink has 9 offices worldwide. LI-Hybride # Job Description Within Nexthink's Engineering department, the team you will be joining contributes to building what we call Collectors: endpoint agents that run on millions of employees' systems worldwide. The Collector gathers meaningful data at the OS level, aggregates it on the device, and transmits it to our cloud analytics platform. They also help remediate detected issues and improve the user experience on their devices. Collectors are a complex and critical part of Nexthink's products, running on Windows and macOS. You will take on broad and unconventional problems with the autonomy to shape and own them - and your ideas can reach millions of devices worldwide. We maintain a high level of quality, performance, and security, and give engineers the freedom to deliver and grow. Responsibilities • Design, build, and evolve Nexthink's Collector agents running on millions of Windows and macOS devices worldwide. • Develop modern, reliable, and high-performance C++ software, close to the OS, where efficiency, stability, and quality matter directly. • Own impactful end-to-end features - from product requirements to production deployment, through observability and measurable impact. • Take on complex multi-platform challenges in real-world environments, investigating deep OS-level issues across diverse client fleets. • Continuously raise the bar for performance, reliability, security, and maintainability of our Collectors, contributing to shaping technology that operates at a global endpoint scale. Qualifications More than 5 years of software development experience. Mastery of C++ 20/23. Demonstrable solid understanding of OS internals. Experience with OS-level software development and research on Windows and/or macOS. Proven experience of owning an end-to-end feature, from product requirements to delivered solution. Understanding of clean, light, and well-testable code concepts. Ability to navigate and debug complex code. Ability to create tools supporting the development process. Skill or practical experience with AI-based agent coding tools. Product-oriented mindset and ease of working in a dynamic environment. Clear and concise communication in English. Assets Experience with kernel-mode software development. Experience with multi-platform development: Windows and macOS. Additional Information Additional Information We are the pioneers and trailblazers of a global IT market category (DEX) that is shaping the future of work worldwide, offering our clients' IT teams total digital visibility across their enterprise. Our innovative solutions integrate real-time analytics, automation, and employee feedback across all endpoints. This enables our IT teams to solve complex technical challenges, create increasingly productive work environments, and provide happy and satisfied employees in the digital workplace. With over 1,200 employees across 5 continents, Nexthink operates as one team, connected, collaborative, and innovative to continuously grow. We call our employees 'Nexthinkers' and our commitment to diversity, inclusion, and equity is unmatched. We currently have over 75 nationalities among our collaborators, from all cultures and backgrounds, speaking many different languages. If you're looking for a change and appreciate a good atmosphere, many challenges, and fun at work, this is an excellent opportunity for you! Discover what we offer: • ? Permanent contract and a competitive compensation package. • ? Beautiful offices with a view of Lake Geneva, ideally located next to Prilly-Malley train station. • ? Hybrid work model balancing office and remote work, with a structured approach for new recruits to foster connections and integration. • ?- Flexible hours and unlimited vacation days (employees benefit from unlimited paid time off in addition to the 25 days of vacation we offer) plus 3 paid volunteer days by the company. • ? Free access to a gym in the building. • ? Reimbursement of the half-fare card for public transport. • ?? Reimbursement of up to 50% of the cost of French courses. • ? Fresh fruit, biscuits