Senior/Staff Software Engineer (Platform)

About the Role

You'll build the software backbone powering autonomous manufacturing operations at a seed-stage AI supply chain startup. As a Senior or Staff Software Engineer on the Platform team, you'll design scalable backend services, data pipelines, and integrations that coordinate AI-powered agents and high-stakes transactions across complex supply chain workflows, directly enabling physical goods to move reliably through manufacturing systems.

What You'll Do

- Design and scale backend services using Next.js API routes, background jobs, and serverless functions to handle high-throughput order processing.
- Build and productionize LLM-based agents, AI/ML infrastructure, and RAG patterns for intelligent quote analysis and supplier recommendations.
- Own the data layer by designing PostgreSQL schemas, migrations, and complex queries for materials, quotes, orders, and supplier relationships.
- Architect event-driven systems with reliable pipelines for order state management, notification triggers, and cross-system synchronization.
- Implement caching and rate limiting strategies to ensure reliable external API calls at scale.
- Establish monitoring, alerting, and observability patterns while owning incident response for backend systems.

What We're Looking For

- 5 or more years building backend services, data pipelines, or platform infrastructure in production environments.
- Strong TypeScript and Next.js hands-on experience, with recent, direct involvement in web development.
- Demonstrated experience designing systems with transactional guarantees (ACID semantics, exactly-once processing) and idempotent APIs.
- Experience building NLP/ML pipelines for data extraction from unstructured documents, including OCR and information extraction.
- Experience designing and scaling PostgreSQL or relational database schemas for transactional workloads.
- Experience building event-driven systems, message queues, or reliable pipelines for state management and cross-system synchronization.
- Experience integrating with ERP systems (SAP, Oracle, or similar) and third-party APIs, including legacy or poorly documented interfaces.
- Direct, recent hands-on AI experience including agentic frameworks alongside web development work.
- Professional experience in manufacturing supply chain, procurement, or logistics domains.
- Comfort operating on a very small, fast-moving team with flexibility and a generalist mindset.
- Experience with Supabase or similar managed PostgreSQL platforms is a plus.
- Experience with RAG patterns or similar AI/ML infrastructure is a plus.
- Prior experience as a founder or founding engineer at a startup is strongly preferred.
- Strong computer science fundamentals.

Compensation & Benefits

- Salary: $160,000 to $250,000 annually (USD), depending on level and experience.
- Visa sponsorship is available.

Location

Fully remote (United States). Being based in or willing to work in San Francisco, California is preferred.