Senior C++ System & Networking Engineer

We are hiring on behalf of a reputable Ireland-based technology startup company, a Senior C++ Systems & Networking Engineer to develop and optimize advanced Linux networking platforms. This role offers remote flexibility with access to a shared office in Egypt for collaboration. Key Responsibilities Build and maintain high‑performance C++ networking/system components. Design asynchronous workflows using Boost.Asio, sockets, timers, and event‑driven state machines. Optimize packet transport, scheduling, buffer management, and multipath transmission. Diagnose and resolve network reliability, CPU efficiency, and memory issues. Profile and improve performance (CPU, memory, latency, throughput, packet loss). Develop unit, integration, and performance tests. Contribute to architecture and code reviews with focus on scalability and maintainability. Required Experience 5+ years in modern C++ (C++17/20/23) for low‑level networking or systems programming. Strong knowledge of Linux networking, routing, traffic shaping, and QoS. Experience with asynchronous/multithreaded/event‑driven software (Boost.Asio or similar). Practical expertise in UDP, TCP, tunneling, or SD‑WAN systems. Skilled in profiling, instrumentation, and Linux diagnostic tools. Familiarity with CMake, Git, and Linux development environments. Ability to own complex technical problems and communicate design decisions clearly. Nice to Have Exposure to Node.js backend (Express, REST APIs) and React front‑end development. Experience with Docker, containerized deployments, and reverse proxies. Knowledge of PostgreSQL/MySQL and telemetry data handling. Familiarity with authentication/security (OAuth, JWT, rate limiting). Show more