Sr. Fullstack Platform Engineer - (Backend Focus)

Sr. Fullstack Platform Engineer - (Backend Focus)

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Salt AI is building the governed execution platform for AI work that has to be real: deployable, auditable, permission-aware, and reliable enough for regulated industries.

Our customers are doing work where “the demo looked cool” is not enough. In life sciences, that can mean RNA-targeted drug discovery, combinatorial chemistry, clinical-trial-adjacent research, and scientific workflows that need traceability, reproducibility, and trust. In financial services, healthcare, legal, and government, it means sensitive data, private infrastructure, and AI systems that have to be controlled rather than merely impressive.

We are looking for a Senior Fullstack Platform Engineer who can help turn that platform into something customers can actually build on: software that feels considered, powerful, fast, trustworthy, and unusually good for the complexity underneath.

This role leans backend and platform.

You should go deep on Python, Django, APIs, cloud infrastructure, Kubernetes, workflow execution, data systems, reliability, and platform contracts. But the scope is still fullstack. You are not just building backend services in isolation. You are responsible for the Fullstack of the customer experience: infrastructure, data contracts, APIs, runtime behavior, UI surfaces, failure states, and the quality bar of the thing a customer actually uses.

The Role

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This is a Fullstack Platform Role for someone who likes deep systems, clean abstractions, and product surfaces that make hard infrastructure feel usable.

You will work across workflow execution, agent orchestration, pipeline-as-tool contracts, customer data access, retrieval, permissions, observability, and the product surfaces that expose those capabilities to real users. Some weeks the important work will be backend architecture. Some weeks it will be the API and event contr...