Our client is building one of the missing layers powering the next generation of AI, creating licensed, human-generated training data used across multimodal systems spanning audio, speech, video, and structured content. Backed by a leading London accelerator, they’re tackling one of the biggest challenges in AI today: high-quality, rights-cleared data infrastructure for enterprise-scale deployment.

You’ll join as a Mid-Level Fullstack Software Engineer , helping scale AI data infrastructure used in high-growth enterprise environments while working across Python , React , cloud infrastructure , and distributed systems .



Take ownership of full engineering work streams from discovery through to deployment and monitoring

Build and maintain backend services alongside modern frontend interfaces

Contribute to debugging, optimisation, testing, and production reliability across the stack

Work closely with leadership and engineers...