Checkly Tech Stack

Application reliability platform for engineers to test, monitor, and observe

Technology, Information and Internet New York, NY 51–200 employees Founded 2018 Privately Held

Checkly builds an application reliability platform combining testing, monitoring, and observability for engineering teams. The stack—Node.js, TypeScript, PostgreSQL, ClickHouse, Kubernetes, and OpenTelemetry—reflects a backend-heavy architecture designed to ingest and process observability signals at scale. Active projects cluster around infrastructure hardening, hybrid cloud optimization (AWS + bare metal), and ClickHouse deployment for check run logs, suggesting the platform is shifting toward higher-volume data ingestion and lower-latency query patterns.

Tech Stack 16 technologies

Core StackOpenTelemetry Playwright Vue Node.js TypeScript PostgreSQL ClickHouse AWS Go Terraform Ansible Kubernetes Linux Hapi Claude

AdoptingClickHouse

What Checkly Is Building

◆Challenges

Improving status pages reliability
Troubleshooting infrastructure issues
Optimizing hybrid infrastructure cost efficiency
Maintaining infrastructure reliability under cost constraints
Monitoring infrastructure
Performance and reliability
Harden backend infrastructure
Reliability cost control
Investigating low-level infrastructure issues
Scaling backend platform

▲Active Projects

Improving infrastructure reliability for workloads
Hybrid infrastructure optimization
Investigating infrastructure issues
Troubleshooting infrastructure issues at packet capture level
Deploy clickhouse instance for check run logs
Own and evolve uptime monitoring platform
Improve status pages product
Optimizing hybrid aws and bare metal infrastructure
Infrastructure reliability improvement
Improving developer experience and observability

Hiring Activity

Decelerating35 roles · 6 in 30d

Department

Engineering

Sales

Seniority

Senior

Staff

Manager

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About Checkly

Checkly is an Application Reliability Platform that helps engineering teams catch errors, monitor uptime, and reduce mean time to recovery (MTTR) across staging and production environments. The product combines testing (Playwright integration), monitoring (multi-region uptime checks), and observability (full-stack traces) into a single platform. Teams use it to alert on outages, update status pages in real-time, and identify root causes down to packet-level detail. Founded in 2018 and based in New York, Checkly operates with 51–200 employees across engineering and sales functions, hiring across North America and Europe.

HeadquartersNew York, NY

Company Size51–200 employees

Founded2018

Hiring MarketsUnited States, Spain, Germany, Portugal, Ireland, Bulgaria, Czechia, Poland

Frequently Asked Questions

What tech stack does Checkly use?

Checkly's core stack includes Node.js, TypeScript, PostgreSQL, and ClickHouse for data, plus Kubernetes and AWS for infrastructure. They use OpenTelemetry for observability instrumentation and Playwright for browser testing.

What is Checkly working on?

Current projects focus on infrastructure reliability, hybrid cloud optimization (AWS and bare metal), ClickHouse deployment for observability data, status pages product improvements, and developer experience enhancements.