Rivio.ai
Senior / Staff Software Engineer | SF, hybrid/remote (US only)
hn · SF, hybrid/remote (US only) · $200-$250k
Jose is a founding engineer with proven expertise building AI agents (LangGraph), full-stack systems, and real products serving customers at scale—directly matching Rivio's needs for an AI-native generalist. His background shipping LLM agents for personalized counseling and deploying complex integrations (voice, SMS, WhatsApp, WebRTC) demonstrates the architectural judgment and hands-on execution the role demands. The only modest gap is domain-specific procurement expertise, which is learnable for someone with his track record.
Hook: You've built production AI agents at scale as a founding engineer—Rivio needs exactly that judgment and execution to push native AI engineering boundaries.
Missing: Procurement domain knowledge, Knowledge graph experience
Sent (1)
Leo, Your line about engineers who direct an army of agents but do the work themselves when needed describes how I already operate. At Addie I've been the sole engineer building a LangGraph agent system from empty repo to production—real-time voice on WebRTC + OpenAI Realtime at sub-200ms, serving students across 10+ countries at 99.9% reliability, while owning architecture, infra, build-vs-buy, and cost-per-conversation targets. Before that I built LLM agents translating plain-language questions into SQL/Python against an ecommerce warehouse—the kind of AI-plus-knowledge work that maps directly to embedding procurement intelligence into real workflows for customers like Brex and Harvey. I'm a full-stack generalist comfortable going wherever the hardest problem lives, and I've shipped systems where failure is expensive for 12 years. Happy to share more or jump on a call whenever works. Jose Oliveros chinnno15@gmail.com
Posting
Rivio.ai | Senior / Staff Software Engineer | SF, hybrid/remote (US only) | $200-$250k + equity | Apply: https://www.rivio.ai/careers/senior-software-engineer-ai Rivio embeds procurement intelligence directly into sourcing and negotiation workflows — helping teams capture savings and build institutional knowledge without adding headcount. Backed by Google, MIT, S32. Customers include Checkr, Cribl, Brex, Harvey, Oura. What Makes This Role Different: - Building across AI agents, knowledge graphs, and integrations as a full-stack generalist, wherever the hardest problem lives - Real product with real customers, not internal tooling - Everyone at the company is an AI power user, and we’re pushing the boundaries of native AI engineering - High ownership, no bureaucracy, outsized equity at an early stage - We think the best engineers today have the judgment needed to direct their army of agents, and do the work themselves when needed. Reach out directly with any questions: llarrere@rivio.ai – Leo, CTO & Cofounder | Rivio.ai