Stellar Cyber Tech Stack

Open XDR platform combining SIEM, NDR, and ML for security operations

Computer and Network Security San Jose, California 51–200 employees Founded 2017 Privately Held

Stellar Cyber operates a consolidated security operations platform built on Kubernetes, Elastic Stack, Kafka, and Apache Spark—a compute-heavy architecture suited to high-volume threat detection and correlation. The company is actively scaling observability, API integration, and infrastructure-as-code (Terraform/Helm), while grappling with production reliability and incident correlation at scale. Engineering-led hiring (15 of 24 active roles) reflects the operational demands of managing distributed sensor networks and multi-layer data processing across customer deployments.

Tech Stack 53 technologies

Core StackKubernetes AWS Terraform Helm Python Go Prometheus Grafana Loki Elastic Stack ArgoCD Docker Kafka Elasticsearch Apache Spark Redis MongoDB Java TypeScript Postman GraphQL OCI GCP Azure Bash Alertmanager Swagger Apigee OAuth C/C+++23 more

What Stellar Cyber Is Building

◆Challenges

Reliability challenges
Ensuring reliability of production systems
Incident response and on-call best practices
Scalable data processing
Production stability issues
Integration architecture challenges
Driving explosive growth
Breaking into new logos
Reducing time-to-market
Large volumes of diverse log formats

▲Active Projects

Observability improvements across systems
Api integration framework development
No-code security automation integration
Performance tuning of sensor software
Infrastructure as code implementation
Ci/cd pipeline development
Business vertical plans
Implementing terraform and helm iac
Incident correlation features
Scalable data processing components for threat detection

Hiring Activity

Accelerating25 roles · 15 in 30d

Department

Engineering

Sales

Product

Support

Seniority

Senior

Staff

Manager

Mid

Director

Notable leadership hires: Regional Sales Director

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About Stellar Cyber

Stellar Cyber builds an open security operations platform combining SIEM, network detection and response (NDR), and extended detection and response (XDR) capabilities under a single license. The product uses AI-driven correlation and automation to ingest and process large volumes of logs and network telemetry from diverse sources. The company serves mid-market and enterprise customers globally, with particular traction among managed security service providers. Founded in 2017 and based in San Jose, Stellar Cyber operates across six countries (United States, United Kingdom, Taiwan, Brazil, Japan, Hungary) and maintains sales and support infrastructure alongside its core engineering organization.

HeadquartersSan Jose, California

Company Size51–200 employees

Founded2017

Hiring MarketsUnited States, United Kingdom, Taiwan, Brazil, Japan, Hungary

Frequently Asked Questions

What tech stack does Stellar Cyber use?

Kubernetes, AWS/GCP/Azure, Terraform, Helm, Python, Go, Elastic Stack, Kafka, Apache Spark, Redis, MongoDB, and Prometheus for monitoring. Supports multi-cloud and on-premises deployment.

What countries does Stellar Cyber hire in?

United States, United Kingdom, Taiwan, Brazil, Japan, and Hungary. Regional hiring includes a Regional Sales Director role.

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How this profile is built

Stellar Cyber's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.