Senior Fullstack Platform Engineer

Role Description

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. 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
• Platform contracts

The Role 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
• Product surfaces that expose those capabilities to real users

The through-line is platform leverage plus customer experience: building primitives that make Salt more trustworthy, more composable, easier for internal teams to extend, and dramatically better for customers to use.

Qualifications

• Strong backend and platform experience in Python/Django, APIs, distributed systems, cloud infrastructure, Kubernetes, queues, jobs, and production reliability
• Fullstack production range with TypeScript, React, and frontend product surfaces
• High agency and high standards
• Platform instincts
• Good taste in abstraction
• Taste in customer experience
• AI-first engineering habits
• Judgment in spite of AI
• Customer empathy
• Clear communication

Requirements

• Build the contracts that let agents call real pipelines with typed inputs, structured outputs, streaming status, retries, logs, and auditability
• Model platform concepts cleanly, build durable APIs, evolve service boundaries, and make customer workflows reliable at the backend layer
• Work on deployment patterns, scaling, isolation, runtime behavior, observability, and operational reliability for AI workflows
• Build the frontend and backend experiences customers use to configure, run, inspect, debug, and reuse AI workflows
• Build secure customer data access patterns, retrieval systems, indexing, hybrid search, and APIs that respect enterprise boundaries
• Make distributed AI workflows understandable: what ran, what changed, what failed, why it failed, and what the user or system can do next
• Turn one-off customer implementations into reusable capabilities without sanding off the important domain-specific details
• Improve the tools, docs, test harnesses, internal workflows, and diagnostics that let a small team move quickly without losing control of the system

Benefits

• Competitive salary and equity package
• 100% Employee Covered Medical, Dental, Vision Plan Base Plans (PPO & HMO)
• Life Insurance, 401k, Flexible Spending Accounts, & More
• Fully Remote - Required to work during US-based time frames

Company Description

Based in Southern California, Salt AI is pioneering the future of life sciences with advanced AI. Founded in 2024 by Aber Whitcomb and Jim Benedetto—veterans of MySpace, Jam City, Gravity, and Core Scientific—our leadership team brings over 18 years of collaboration. We’re not just building products, but transforming what’s possible in research and discovery. We value diverse perspectives and are committed to an inclusive team. If you’re excited about shaping the future of AI in life sciences and beyond, we'd love to connect with you.