Networking and Microservices Engineer (C, Go) for IoT project

Embedded Software (5.0 yr.), NetOps and SysOps.

Senior

Upper-Intermediate English

Required Skills

5.0 yr.

Linux

eBPF

TCP/IP

3.0 yr.

Nice to Have

C++

AF_XDP

VPP

DPDK

Netfilter

microservices

Strace

SystemTap

bpftrace

jemalloc

GDB

XDP

NIC RX

RCU

RTOS

pahole

CNF

Linux Networking

Summary

- Key skills: C, Go, eBPF, Linux networking, VPP, DPDK;
- Focus: High-performance networking, systems-level development, observability tools;
- Required experience: Linux kernel internals, Go microservices, performance optimizations;
- Employment Type: Full-time, Remote or Hybrid (remote + office)
- Locations: Spain, Poland, Czechia, Slovakia, Romania, Bulgaria, Ukraine;

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About the Role

We are seeking a highly skilled C/Go Engineer with deep expertise in Linux networking, eBPF, and systems-level programming to join city mobility IoT project team. You will work on high-performance networking solutions, help shape observability and tracing pipelines, and contribute to the next-generation mobile core systems. This is a mission-critical role for IoT connectivity platform powering enterprise- and city-scale mobility solutions.

Key Responsibilities

Develop and optimize high-performance network components using C, C++, and Go;
Design and implement eBPF/AF_XDP/TC programs and integrate with frameworks like VPP/DPDK;
Work with Linux kernel internals, network stack, sockets, routing, and Netfilter;
Build and maintain microservices for user-plane functions using Go;
Conduct in-depth performance analysis, tuning, and tracing using tools like Strace, SystemTap, bpftrace, jemalloc, and gdb;
Implement and maintain observability and monitoring tools for networking workloads;
Collaborate closely with DevOps and platform engineers on system-level design.

Ideal Candidate Profile

Strong proficiency in C with hands-on experience in Linux kernel networking, especially eBPF, XDP, TC;
C++ experience in multi-threaded user-space environments;
Go experience in microservice development for high-throughput systems;
In-depth understanding of:
Linux networking internals (from NIC RX burst to socket APIs);
Memory models, barriers, atomics, thread-local storage, mutexes, spinlocks (both kernel and user-space);
Data memory layout, CPU cache locality, RCU, CPU isolation;
Deep familiarity with performance tuning and lock-free/wait-free algorithms;
Solid understanding of network protocols, UDP tunnels, and low-level packet processing.

Nice to have:

Contributions to open-source projects in the networking or observability space;
Experience with RTOS, jemalloc, pahole, or core dump analysis scripting;
Past work in telecom, mobile core networks, or cloud-native network functions (CNFs).

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