Senior Software Engineer – Networking (Go / Distributed Systems)

Senior Software Engineer – Networking (Go / Distributed Systems) Remote (Europe) | Full-time We are recruiting on behalf of a fast-growing cybersecurity startup building an open-source zero-trust network security platform used by thousands of companies worldwide to securely connect employees, services, and infrastructure. Their platform replaces traditional VPN architectures and powers secure, high-performance networking for modern distributed teams. About the Role We are looking for a Senior Software Engineer – Networking to design and build high-performance networking components that run across Linux, macOS, and Windows . This role focuses on distributed systems, network protocols, performance optimization, and secure connectivity in a production environment used by hundreds of thousands of devices globally. You will work closely with a collaborative engineering team and contribute directly to a widely adopted open-source platform. Responsibilities Design, develop, and maintain high-performance networking code Build and optimize distributed networking components Ensure reliability, scalability, and performance of core networking services Participate in architecture discussions and technical decision-making Review code and collaborate with engineers across the team Contribute to product improvements and technical innovation Support open-source users by addressing issues and providing guidance Occasionally join technical discussions with customers to understand real-world networking needs Requirements 5+ years of professional software engineering experience 2+ years of experience developing in Go Strong experience designing distributed systems Deep understanding of networking concepts (protocols, routing, tunneling) Experience with performance monitoring and optimization Strong knowledge of multi-threading and asynchronous programming Experience with unit and integration testing Strong communication skills and ability to work in a remote environment Fluent English Nice to Have Experience working with VPN or secure networking solutions Experience with REST or gRPC APIs Experience working in cloud environments Open-source contributions Experience building software deployed at large scale Whats Offered Competitive compensation and equity Fully remote or hybrid flexibility High ownership and autonomy Collaborative engineering culture Opportunity to work on cutting-edge zero-trust networking technology How to Apply If youre interested in this opportunity, please apply