# Software Engineer

**Company**: Cisco
**Experience**: senior
**Job type**: full-time
**Category**: Engineering
**Industry**: Technology

**Apply**: https://cisco.wd5.myworkdayjobs.com/en-US/Cisco_Careers/job/Bangalore-India/Software-Engineer_2025377-1?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_948e88ef-cd1

## Description

You will join the Mass-Scale Infrastructure Group (MIG) Platform Forwarding team, building high-performance data plane software for IOS-XR platforms using Silicon One (SiOne) Network Processing Units (NPUs).

As a Software Engineer, you will focus on designing, coding, and optimizing forwarding software, delivering high-quality code for complex L2/L3 forwarding features, and extracting maximum performance from NPUs.

Responsibilities:

- Feature Design & Implementation: Design and develop specific forwarding features within the IOS-XR platform, writing high-performance code for QOS, Mirroring, Slowpath, OAM, Layer 2 (EVPN, VPLS), and Layer 3 (SRv6, Segment Routing, MPLS) technologies.

- NPU Data Plane Programming: Implement data plane logic to optimize packet processing, translating network protocol requirements into efficient NPU microcode and SDK interactions.

- Debugging & Root Cause Analysis: Investigate and resolve complex software defects, analyzing logs, core dumps, and packet traces.

- Performance Optimization: Profile and tune code to minimize latency and enhance throughput, ensuring software meets strict service provider performance metrics.

- Modern Development Practices: Use AI/LLM-based tools for code generation, unit test creation, and static analysis.

Requirements:

- Embedded Development: Strong proficiency in C/C++ for high-performance embedded systems, and Python for scripting and test automation.

- NPU Familiarity: Experience with NPU-based data plane architectures, pipelining, table management, and packet processing flows.

- Forwarding Protocols (L2/L3): Strong understanding and implementation experience in QOS, Mirroring, OAM, Layer 2 (EVPN, VPLS), and Layer 3 routing (SRv6, Segment Routing, MPLS, IPv4/v6).

- Network Knowledge & Debugging: Understanding of router deployments in Service Provider networks, and ability to debug issues at the component level.

- Modern SDLC: Experience with CI/CD pipelines, Git, and code review processes.

Minimum Qualifications:

- BS/MS in Computer Science, Electrical Engineering, or related field.

- 7-10 years of experience in embedded software development for networking products.

- Strong programming skills in C/C++ and scripting in Python.

- Solid knowledge of carrier-grade networking OS and forwarding architectures.

- Experience debugging complex embedded software issues.

Preferred Qualifications:

- Experience with IOS-XR or similar carrier-grade network operating systems.

- Knowledge of Internet Protocols (TCP/UDP, IPv4/IPv6).

- Exposure to Networking Protocols (L2/L3, QoS, ACLs).

- Experience with BCM, Sione, Ezchip NPU programming.

- Familiarity with AI/ML tools for software engineering.

## Skills

### Required
- C/C++
- Python
- NPU-based data plane architectures
- Forwarding Protocols (L2/L3)
- Network Knowledge & Debugging
- Modern SDLC

### Nice to have
- IOS-XR
- Internet Protocols (TCP/UDP, IPv4/IPv6)
- Networking Protocols (L2/L3, QoS, ACLs)
- BCM, Sione, Ezchip NPU programming
- AI/ML tools for software engineering

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