Cisco Tech Stack

Enterprise networking, security, and AI infrastructure at scale

Software Development San Jose, CA 10,001+ employees Founded 1984 Public Company

Cisco operates a sprawling multi-product infrastructure spanning networking (NX-OS, SDN, Meraki), security (Duo, DNA), and observability (Splunk, ThousandEyes), with active adoption of LLM frameworks (LangChain, LangGraph) and AI-powered threat detection. The hiring mix reveals heavy investment in core engineering (673 roles) alongside a substantial sales org (406 roles), consistent with a mature enterprise vendor scaling AI capabilities while protecting legacy customer bases from supply-chain and application-level threats.

Tech Stack 200 technologies

Core StackPython GitHub GitLab Jira Splunk RAG AWS Neo4j Unity Catalog AWS Glue Kubernetes Go C++ Java Linux C Cisco NX-OS UNIX GCP Azure AWS Neptune DataHub CI/CD SDN FMEA 8D Webex RTOS Unix Perl+170 more

AdoptingLangChain Splunk RAG LangGraph Cisco DNA Software-Defined Networking Cisco Meraki Duo Security+19 more

What Cisco Is Building

◆Challenges

Quality issues
Compliance gaps
Prevent downtime
Strengthen security
Complex organizational challenges
Expanding territories in sled
Identifying growth opportunities
Customer adoption
Protecting ai applications from supply chain attacks
Detecting threats

▲Active Projects

5g deployment
New product development
Ai collaboration
Distributed training and inference pipelines optimization
Next generation asic products
New product introduction (npi)
Test program development
Firmware and sdk development for silicon one
Pipeline development for cisco's incubation security products
Product lifecycle management

Hiring Activity

Steady1,600 roles · 650 in 30d

Department

Engineering

673

Sales

406

Product

Security

Ops

Marketing

Support

Data

Seniority

Senior

589

Mid

345

Intern

181

Junior

147

Manager

110

Lead

Director

Principal

Notable leadership hires: UX Director, Partner Development Director, Chief Information Security Officer, Sales Director, Head of Product Design

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About Cisco

Cisco designs and sells networking, security, and collaboration infrastructure to enterprises, governments, and service providers worldwide. The product portfolio spans switching and routing (NX-OS), wireless and SD-WAN (Meraki), identity and access (Duo), network observability (ThousandEyes), and unified communications (Webex). Active engineering workstreams include 5G deployment, next-generation silicon (ASICs for SiliconOne), distributed AI training pipelines, and security product incubation. The organization operates globally across 25+ countries, with engineering and sales concentrated in the United States, India, and EMEA regions.

HeadquartersSan Jose, CA

Company Size10,001+ employees

Founded1984

Hiring MarketsIndia, China, United States, Singapore, Japan, Vietnam, Indonesia, Poland

Frequently Asked Questions

What programming languages does Cisco use?

C, C++, Python, Go, Java, and Perl dominate core development. Unix/Linux and RTOS systems support network and edge products. GitHub and GitLab manage repositories; Jira runs CI/CD pipelines.

What AI and ML tools is Cisco adopting?

LangChain, LangGraph, and RAG frameworks for generative AI; Splunk for observability and threat detection; Cisco DNA for network automation. Projects include distributed training pipelines and AI collaboration features.