CodSpeed is a software performance optimization tool that allows engineering teams to optimize and measure code performance before it is deployed to production or shipped anywhere. Thanks to this approach, we avoid regressions that impact user experience and help developers solve their performance issues faster. CodSpeed is already trusted as the go-to solution for performance optimizations by top-tier open-source project teams such as Pydantic, Ruff, and Prisma.

We’re at an exciting early stage and looking for talented engineers who share our passion for helping to enhance the performance of software used by billions of people, improving the software development lifecycle, and building tools we love to use ourselves.

Build language models applications focused on code performance, both to infer the performance of a code snippet statically and also to optimize it without any runtime information

Fine-tune and train language models with our high-quality datasets to improve the relevance of our suggestions and analysis

Be a founding engineer - you’ll make core architecture choices, ship significant features to production, and shape the company culture

Strong programming skills in Python

Drive for technical excellence

Experience building/training AI models and deploying them to production

Experience working with LLMs (prompt engineering, RAG, orchestration, etc.)

Experience with Python web backend frameworks (eg: FastAPI) or frontend frameworks (eg: React)

Open-source projects or contributions

Experience leading significant projects in startup environments