Calix Tech Stack

Cloud and managed services platform for broadband service providers

Software Development San Jose, California 1,001–5,000 employees Founded 1999 Public Company

Calix operates a cloud and managed services platform for broadband providers, built on Google Cloud infrastructure (GCP, BigQuery, Dataflow, Pub/Sub) with heavy use of Apache Spark and Kafka for data processing. The company is actively adopting observability tooling (Prometheus, Grafana, Elasticsearch) and expanding cloud-native capabilities while managing a large distributed test automation platform — suggesting a shift toward operational transparency and automated quality gates as they scale. The engineering-heavy hiring mix (71 of 121 active roles) paired with pain points around data platform scaling and test platform stability indicates a company in the midst of infrastructure modernization.

Tech Stack 200 technologies

Core StackPython Linux Apache Flink Apache Spark BigQuery Kafka Terraform GitLab CI/CD Prometheus Docker Kubernetes Jenkins Apache Airflow Salesforce Power BI C/C++ Bash Ethernet VLAN DHCP MPLS TCP/IP GCP Dataflow Dataproc Pub/Sub Cloud Build Cloud Logging Cloud Composer IAM+170 more

AdoptingPrometheus Grafana Elasticsearch SOAR Service Cloud

What Calix Is Building

◆Challenges

Stability of distributed test platform
Optimizing system performance
Scaling data platform
Collapsing cost
Compliance and security of m365 copilot solutions
Improving internal threat intelligence processes
Expanding cloud infrastructure capabilities
Driving market penetration
Complex test automation projects
Optimizing cloud infrastructure and data pipelines

▲Active Projects

Architecting world class in-home ecosystem
Expanding calix cloud infrastructure capabilities
In-home ecosystem architecture
Build automated test suites for gui and api testing
Data ingestion and analytics platform
Cloud-native solutions
Observability and monitoring of nms
Backend infrastructure for data collection and monitoring
Backend service containerization
Distributed automation test case management and execution platform

Hiring Activity

Steady120 roles · 40 in 30d

Department

Engineering

Sales

Security

Finance

Marketing

Product

Data

Ops

Seniority

Senior

Staff

Intern

Manager

Mid

Junior

Director

Principal

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About Calix

Calix is a public software platform and managed services company serving broadband service providers of all sizes. The platform enables providers to manage subscriber operations, drive engagement, and deploy consumer, business, and municipal services. The company operates data pipelines and cloud infrastructure across multiple geographies (hiring in India, China, Germany, Mexico, Taiwan, and the United States) and maintains a substantial operations footprint spanning backend services, network management systems, and automated testing infrastructure. Founded in 1999 and headquartered in San Jose, Calix has grown to 1,001–5,000 employees.

HeadquartersSan Jose, California

Company Size1,001–5,000 employees

Founded1999

Hiring MarketsIndia, China, Germany, Mexico, United States, Taiwan

Frequently Asked Questions

What tech stack does Calix use?

Calix's core stack spans GCP (BigQuery, Dataflow, Pub/Sub), Apache Spark and Kafka for streaming, Kubernetes and Docker for containerization, Python and C/C++ for application code, and Salesforce for CRM. Monitoring and observability rely on Prometheus, Grafana, and Elasticsearch.

Where is Calix hiring?

Calix is actively hiring across six countries: India, China, Germany, Mexico, Taiwan, and the United States.