HW.Tech is hiringSenior Network Software Engineer

We're looking for an experienced C/Go Engineer with strong expertise in Linux networking, eBPF, and low-level systems programming to join a cutting-edge engineering team. You will help develop high-performance networking components, contribute to the evolution of observability and tracing infrastructure, and build the backbone of next-generation mobile core systems. This is a key technical position with an immediate start, and we're prioritizing speed and alignment through early candidate engagement.

What You’ll Do

• Develop and fine-tune network components in C, C++, and Go with a focus on speed and reliability.

• Design and deploy eBPF, AF_XDP, and TC programs within modern data plane architectures like DPDK and VPP.

• Work deep within the Linux kernel, handling network stack internals, routing, Netfilter, and sockets.

• Build Go-based microservices supporting high-throughput user-plane functions.

• Analyze and optimize performance using advanced tools such as strace, SystemTap, bpftrace, jemalloc, and gdb.

• Implement robust observability and monitoring solutions tailored to networking workloads.

• Collaborate with DevOps and platform teams on system architecture and runtime efficiency.

What We’re Looking For

• Expertise in C, particularly in Linux kernel-level networking (eBPF, XDP, TC).

• Proficiency in C++, especially in multi-threaded user-space development.

• Strong experience in Go, with a focus on networking microservices and distributed systems.

• Deep understanding of:

  • Linux networking internals (e.g., NIC RX path to socket APIs)

  • Concurrency primitives (mutexes, atomics, memory barriers, thread-local storage)

  • Low-level performance optimizations (RCU, CPU cache locality, CPU isolation)

• Practical knowledge of UDP tunneling, low-level packet manipulation, and lock-free/wait-free algorithms.

What We Offer

• Full remote opportunity

• Long-term, stable project with high engineering standards

• Competitive compensation aligned with your expertise

• A chance to collaborate with a world-class engineering team

• Challenging, meaningful tasks in a domain with real-world impact