Checkly

Checkly is an Application Reliability platform designed to help engineering teams build and maintain reliable applications. Founded in 2018 and headquartered in Estonia, Checkly offers a comprehensive suite of tools for testing, monitoring, and observability. Their platform unifies synthetic monitoring, API monitoring, heartbeat monitoring, and TCP monitoring, enabling developers to proactively detect and resolve issues before they impact users. Checkly empowers teams with features like Monitoring as Code, OpenTelemetry Tracing, and Playwright-based browser checks, allowing for automated and programmable reliability testing. The company raised a $20M Series B funding in 2024 from Balderton, CRV, and Accel, demonstrating strong investor confidence in their mission to simplify application reliability. Their tech stack includes Vue.js, Node.js, TypeScript, Postgres, ClickHouse, and AWS. Checkly operates with an async-first, remote-first culture, emphasizing transparency, low meetings, and high productivity. Thousands of developers from companies like 1Password, CrowdStrike, Render, LinkedIn, and Vercel trust Checkly to maintain their application performance and reliability. Checkly offers competitive salaries, comprehensive benefits including equity options, and a supportive environment for engineers to grow and impact meaningful projects. They prioritize engineering excellence and product reliability, making them a leader in the modern monitoring landscape.