Senior Software Engineer

NegotiateAI is building AI for category managers and general procurement teams at manufacturing and industrial companies. The Senior Software Engineer will build and own backend services, agentic AI systems, customer-facing procurement features, and evaluation infrastructure while providing technical leadership and working closely with customers and the founding team.

Responsibilities:

• Build and own core backend services, including integrations with ERP systems, supplier databases, and spend analytics tools
• Build the agentic systems at the core of the product: pipelines that categorize indirect spend and resolve part identifiers from incomplete supplier data, and agents that source online benchmarks, gather supplier contacts, and support automated negotiation
• Ship customer-facing features for real-time spend visibility and supplier benchmarking, and iterate quickly on customer feedback
• Build evaluation and monitoring for our AI systems so we can measure accuracy and catch regressions before customers do
• Set architectural direction for the systems you own, and mentor engineers earlier in their careers
• Apply security and data privacy practices, including anonymization, tokenization, and secure sandboxes for model work