CloudLinux Tech Stack

Linux OS and hosting security platform for multi-tenant service providers

Software Development Estero, Florida 51–200 employees Founded 2009 Privately Held

CloudLinux builds an operating system and security stack purpose-built for shared hosting environments, where density and isolation are core constraints. The hiring mix is heavily weighted to engineering (112 roles) and security (16), with active projects spanning threat hunting, live kernel patching, and AI-driven threat analysis—reflecting a shift toward automation and intelligence-driven operations. The tech stack (Kafka, RabbitMQ, Kubernetes, ClickHouse) and adoption of Terraform, Ansible, and Claude indicate infrastructure modernization and increased reliance on AI tooling to solve scaling and malware detection challenges.

Tech Stack 91 technologies

Core StackSentry Python RabbitMQ Kafka MongoDB Redis Docker Kubernetes Linux Grafana Terraform Ansible PostgreSQL ClickHouse AWS DigitalOcean Apache Airflow AlmaLinux Red Hat Ubuntu SUSE FIPS asyncio Git Telegraf Imunify360 OpenNebula GCP Azure Redash+58 more

AdoptingCursor Terraform Ansible Python Imunify360 Claude ChatGPT Gemini

What CloudLinux Is Building

◆Challenges

Operational risk from abuse
Shifting to dbaas model
Improving web performance
Modernizing malware analysis pipeline
Eliminating dark architecture
Scaling bottlenecks
Migrating legacy solutions to modern cloud patterns
Maintaining ip reputation
Reducing development bottlenecks
Ensuring uptime reliability

▲Active Projects

Threat hunting and threat intelligence research projects
Endless lifecycle support (els)
Ai tooling integration
Internal tools for automatic threat analysis
Ai agent automation for dev-ops and security
Web performance optimization
Backend services for imunify360 server platform
Self-service platform for ha clusters
Kernelcare live kernel patching service
High-throughput messaging and data processing pipelines

Hiring Activity

Accelerating180 roles · 85 in 30d

Department

Engineering

112

Security

Product

Sales

Support

Data

Agile

Executive

Seniority

Senior

Mid

Staff

Lead

Intern

C-Level

Junior

Manager

Notable leadership hires: Team Lead, Chief Technology Officer

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About CloudLinux

CloudLinux operates a Linux operating system and security platform designed for hosting providers managing large numbers of shared accounts and datacenters selling servers to enterprise and SMB customers. The platform emphasizes resource isolation, density optimization, and security hardening in multi-tenant environments. Core products include KernelCare (live kernel patching), Imunify360 (threat detection and response), and OpenNebula-based cluster management. The company is headquartered in Estero, Florida and operates a distributed engineering organization across Europe, Eastern Europe, Latin America, and Central Asia.

HeadquartersEstero, Florida

Company Size51–200 employees

Founded2009

Hiring MarketsGermany, Portugal, Netherlands, Poland, Serbia, Bulgaria, Armenia, Georgia

Frequently Asked Questions

What is CloudLinux OS used for?

CloudLinux OS is optimized for hosting providers managing shared hosting accounts and datacenters selling servers to enterprise/SMB customers. It delivers resource isolation, multi-tenant security, and higher server density compared to standard Linux distributions.

What security products does CloudLinux offer?

CloudLinux operates Imunify360 (server security platform with threat detection and malware analysis), KernelCare (live kernel patching without reboots), and internal threat hunting/intelligence infrastructure. Current projects focus on AI-driven threat analysis and abuse prevention.