Staff Software System Engineer (Networking)

Department: Backend

Employment Type: Full Time

Location: Islamabad, Pak

Description

Join a high-performance engineering team building next-generation network operating systems for leading data-networking platforms.
You will design and implement embedded software spanning control-plane (protocols & network logic) and data-plane (packet forwarding & resource management) components that power carrier-grade switching and routing solutions.

Key Responsibilities

Design, develop, and maintain software for switching and routing platforms.
Build scalable control-plane modules (L2/L3 protocols, routing, management).
Implement high-performance data-plane features – packet forwarding, QoS, ACL, traffic management.
Participate in system architecture and design reviews; propose improvements.
Integrate and interact with third-party protocol stacks or SDKs.
Debug performance bottlenecks, memory leaks, and inter-process issues.
Collaborate cross-functionally with Hardware, QA, and Product teams to validate features and interop requirements.
Prepare design documents and drive feature sign-offs through the entire product life cycle.

Core Technical Expertise

Control Plane Areas:

L2 protocols – STP/MSTP/RSTP, 802.1p/q/v, 802.1x, 802.3ad (LACP), IGMP, ERPS
L3 protocols – IPv4/IPv6, OSPF, BGP, PIM, ISIS, VRF, L3VPN
Routing algorithms and data structures

Data Plane Areas:

Packet forwarding pipeline design and resource management (TCAM, packet buffers, RIB/FIB, ACL)
Policy-based routing (PBR), QoS, Rate-limiting, MPLS, VPLS, VLL, VXLAN, SDN/OpenFlow
High availability and in-service software upgrade (ISSU)

Programming & Systems:

Strong C/C++ programming skills (Mandatory)
Linux OS internals and multi-threaded development
Python or Shell scripting for automation (preferred)
Debugging tools (gdb, valgrind, profilers)
Familiarity with microservices and Go language is a plus

Nice to have & Requirements

Experience with network ASIC SDKs or traffic manager drivers
Exposure to automated unit testing frameworks
Understanding of REST APIs and system integration for management interfaces
Working knowledge of virtualized network functions (VMs, containers).
Experience with network ASIC SDKs or traffic manager drivers
Exposure to automated unit testing frameworks
Understanding of REST APIs and system integration for management interfaces
Working knowledge of virtualized network functions (VMs, containers)

B.E./B.Tech or M.E./M.Tech in Computer Science, Electronics or related field
4–12 years of hands-on experience in Networking / Telecom software development (embedded systems or network management)
Strong problem-solving and analytical skills

Key Responsibilities

Core Technical Expertise

Nice to have & Requirements

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