Flux Raises $5M for Code-First Engineering Platform

Flux, the code-first engineering intelligence platform, raised $5 million in new funding led by Calibrate Ventures. True Ventures and Glasswing Ventures, existing backers, also participated.

The Boston-based company builds tools that help engineering teams understand their codebase, track dependencies, and manage technical debt. The fresh capital is earmarked for product development and go-to-market hiring.

The funding round comes as engineering leaders grapple with AI-generated code accelerating the pace of development. Flux positions its platform as a way to maintain visibility and control, rather than relying on manual documentation or ad-hoc processes.

The raise adds to a string of early-stage investments in developer tools this year, including Dapple's $30 million seed round for an AI infrastructure OS.

Flux was founded in 2021 and is based in Boston.