C++ Software Engineer – SDK System & Performance

Cisco · Belgrade, Serbia · Product and Engineering

mid operations Systems Engineer ic · Posted Apr 9, 2026

About this role

Cisco is hiring a mid-level Systems Engineer in the operations function based in Belgrade, Serbia. The posting calls out experience with Python, C++, Linux, Observability.

Role
Systems Engineer
Function
operations
Level
mid
Track
Individual contributor
Employment
Full-time
Location
Belgrade, Serbia
Department
Product and Engineering
Posted
Apr 9, 2026

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Job description

from Cisco careers

Meet the Team

We, at CISCO Silicon One™, are building SDK, firmware, simulator, and compiler for the top-of-the-line Networking ASIC.

The SDK System & Performance team manages all of SDK features that are device agnostic. This involves intricate C++ projects, that requires proficiency and intuition of C++, compiler, linker, loader, and general Linux program runtime environment and subsystems. You will improve SDK code quality, manage SDK threads, and various common SDK tools and utilities.

We manage SDK memory footprint and debuggability, which involves deep understanding of the Linux memory subsystem. You will profile, analyse, propose and implement solutions to improve SDK memory usage, and make it more robust.

One of the major cross device functionalities and engineering challenges is supporting SDK critical updates on live systems. You will work closely with major CISCO customers to enable and validate these functionalities.

We are looking for people who are in love with technology and engineering to help us push the limits of what is possible through innovation, determination, and teamwork.

Your Impact

  • Design and deliver core, cross-device SDK infrastructure in modern C++ (C++14/C++17), with a strong focus on performance, scalability, and long-term maintainability

  • Drive system-level engineering across the build and runtime stack, including deep work with the compiler, linker, loader, and binary/layout considerations

    This is an excerpt. Read the full job description on Cisco careers →
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