Hop

Principal AI Architect

Hop  •  San Francisco, CA (Onsite)  •  26 days ago
Apply
AI can make mistakes so check important info. Chat history is never stored.

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.

Location: San Francisco, SoMa — minimum 4 days per week in-office.

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
Social Media