Lark

The E2E testing layer for AI-driven development

Y CombinatorSummer 2025ActiveB2BEngineering, Product and DesignDeveloper ToolsB2BDevOpsAutomation

What they do

Problem

Teams struggle to maintain reliable end-to-end tests because traditional test code is brittle and costly to keep up with fast-changing products.

Solution

Lark is an end-to-end testing platform that lets teams write and run plain-English tests to validate dashboards, APIs, SDKs, and full product flows across CI, feature branches, and production.

Who it's for

Software development teams and QA engineers building and shipping products with CI/CD workflows.

Founders

Vijit Dhingra

Founder

Vijit is the co-founder of Lark. He previously spent five years at a Stripe as a tech lead where he built their usage based billing product and other payments infrastructure. He also contributed to testing infra at Stripe to improve developer productivity and product reliability.

LinkedIn · X

Jack Brown

Founder

Jack is the co-founder of Lark. Previously, Jack built usage-based billing at Stripe to support the complex pricing models of the worlds biggest AI companies. Prior to his previous role, Jack led engineering teams at fast-growing startups, where he built developer tooling infrastructure to improve developer productivity.