SONiC Technical Lead: Production-Grade Switch Expert

Codilime; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Flexible working hours

Remote or hybrid options

Training budget and tech talks

Job summary

CodiLime seeks a SONiC Technical Lead to head end-to-end qualification, bring-up, and shipping of production-grade SONiC releases across complex data center topologies. You will design, extend, and debug core SONiC subsystems, and drive fixes with silicon vendors in a global time-zone-aware setup.

You will lead a team of systems developers and network engineers, mentoring on C/C++, Python, Linux, and network standards while shaping automated CI/CD pipelines and regression workflows.

Qualifications

• Proven track record of shipping, qualifying, and hardening production-grade SONiC platforms on physical switch hardware.
• Expert-level hands-on experience with SWSS, syncd, Redis state databases, and SAI.
• Strong hands-on engineering skills in C/C++ and Python within Linux environments, including multi-threading, IPC mechanisms, socket programming, and system calls.
• Understanding of Layer 2 and Layer 3 networking standards (BGP, EVPN, VXLAN, VLAN, QoS, RoCEv2, PFC, ECN).

Responsibilities

• Leading the end-to-end qualification, bring-up, and shipping of robust SONiC releases across physical switch targets in complex data center topologies
• Designing, extending, and debugging core SONiC subsystems, including SWSS, syncd, Redis in-memory state databases, and Linux system services.
• Systematically isolating failures across all layers, and driving resolution with silicon vendors.
• Debugging transaction processing and pub/sub notification mechanisms between APPL_DB, ASIC_DB, and syncd to prevent state desynchronization and ensure wire-speed route programming.
• Architecting automated regression workflows (Pytest, PTF, sonic-mgmt, Ansible) integrated into CI/CD pipelines to validate forwarding, congestion, and L2/L3 resiliency.
• Utilizing packet captures, kernel debug tools (gdb, perf, BPF), diagnostic logs, Redis telemetry, and line-rate traffic generators (TRex, PTF, Keysight) to perform root-cause analysis on system-level anomalies.
• Leveraging advanced AI engineering utilities (AI-assisted log analysis, LLM coding assistants, automated RCA scripts) to accelerate defect isolation and test automation cycles.
• Conducting rigorous code reviews across C/C++, Python, and Go codebases, mentoring team members, and maintaining high standards for code quality and maintainability.

Skills

C/C++

Python

Linux

Networking

Docker

Ansible

CI/CD

GDB / debugging

tcpdump

Golang

Tools

sonic-mgmt

PTF

pytest

Docker

Ansible

Job description

CodiLime seeks a SONiC Technical Lead to head end-to-end qualification, bring-up, and shipping of production-grade SONiC releases across complex data center topologies. You will design, extend, and debug core SONiC subsystems, and drive fixes with silicon vendors in a global time-zone-aware setup.

You will lead a team of systems developers and network engineers, mentoring on C/C++, Python, Linux, and network standards while shaping automated CI/CD pipelines and regression workflows.