Senior Software Engineer – Python Backend & Manufacturing Systems

Diamond Foundry Inc. is solving the thermal limitation at the foundation of today's most exciting tech industries -- AI & cloud compute, electric-car power electronics, and 5G/6G wireless. We have managed to produce the world's first single-crystal diamond wafers and are now on a mission to put a diamond behind every chip. We are the rare unicorn that has grown fast and profitably. We received $515m in funding and are executing a multi-$B expansion plan for one of the greenest forms of tech manufacturing: converting greenhouse gas into diamond wafers using zero-emission energy.

We are looking for an experienced, communicative Senior Software Engineer to own the data pipelines, internal systems, and APIs that power our real-time manufacturing and R&D operations. What we need from you is deep, production-grade Python expertise and the ability to own a project end-to-end: partnering directly with material engineers, technicians, and hardware engineers to turn ambiguous operational challenges into working production software.

This role will be on-site 5 days a week in either our South San Francisco office or our Fremont, CA office.

Own technical initiatives from inception to delivery: translate operational needs into technical roadmaps, architectural specs, and deployable code.

Architect and scale end-to-end Python backends, spanning high-throughput event pipelines, internal REST APIs, and automated data processing tools.

Interface directly with internal clients (production technicians, metrology specialists, and R&D engineers) to diagnose workflow bottlenecks and validate solutions on the floor.

Optimize database performance and schema design for high-frequency telemetry, process metrics, and traceability data.

Partner with our front-end engineers to define clean API contracts and data models for operator-facing UI’s.