Hop

Principal AI Architect

Hop  •  San Francisco, CA (Onsite)  •  1 month ago
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Job Description

Draup is a Series A-funded agentic AI company building the intelligence layer for how global enterprises make workforce and go-to-market decisions. We work with 250+ enterprise clients — including 5 of the Fortune 10 — processing 1B+ job descriptions, 850M+ professional profiles, and signals from 100+ labor databases.We are now building our Silicon Valley engineering team — a small, senior group focused on next-generation AI research and product.What you'll do• Define and own the architectural vision for next-generation AI systems: novel agent architectures, reasoning systems, and proprietary model development.• Prototype and evaluate breakthrough AI capabilities — predictive modeling, autonomous signal synthesis, multi-modal intelligence — that create defensible IP.• Set the technical foundations: data architecture, model serving, agent orchestration, and inference infrastructure for a multi-year product horizon.• Evaluate and adopt emerging AI paradigms (multi-agent reasoning, RLHF, retrieval-augmented fine-tuning) before they are mainstream.• Establish engineering standards, architecture review processes, and IP documentation practices for the team.What we require• BS/MS/PhD in Computer Science, AI/ML, or related field. PhD or equivalent research depth preferred.• 5+ years in AI/ML engineering with at least 2 years in a principal engineer or lead architect role.• Demonstrated history of building original AI systems that became products — not implementations of existing patterns.• Deep expertise across: LLM training and fine-tuning, agentic system design, knowledge graph construction, large-scale data modeling.• Comfort operating in greenfield conditions: high ambiguity, high ownership.• Patents, published research, or shipped products with clear proprietary differentiation are strong signals.• No visa sponsorship. Must be authorized to work in the US without current or future employer sponsorship.
Hop

About Hop

Hop is a platform that connects emerging AI, GenAI, and ML talent from Latin America with high-impact projects. Our AI technology evaluates hundreds of candidates weekly, flagging those who score 80% or higher for human review and interviews. Only 1 in 500 talents make the cut.

We go beyond conventional qualifications—whether talent holds a PhD or has no formal education, we identify builders and doers with real skills and a drive to succeed. We provide access to top mentors and offer training uniquely designed to instill a deep understanding of ethics, the wisdom of work, self-mastery, and work culture, ensuring our talent is well-rounded and ready to excel.

Hop’s mission is to break geographic barriers, giving global talent access to high-paying, future-focused roles. We help people stay relevant in an AI-driven world by connecting them with opportunities that uplift their lives and communities.

Industry
HR & Recruiting
Company Size
11-50 employees
Headquarters
Walnut Creek, California
Year Founded
2016
Website
hophr.com
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