Sybill · 2 months ago
Staff AI Research Engineer
Mountain View, CA
Full-time
Onsite
Senior Level, Lead/Staff
$240K/yr - $280K/yr
5+ years expSybill.ai is building an AI-first platform that transforms B2B sales, enabling sellers to focus on high-impact customer interactions. As a Staff AI Researcher, you will architect and implement sophisticated AI systems to enhance sales workflows and drive innovation through rapid experimentation.
Artificial Intelligence (AI)CRMEnterpriseMachine LearningSaaSSalesSoftware
Responsibilities
Architect end-to-end agentic systems that autonomously plan and orchestrate multi-tool workflows
Implement sophisticated retrieval systems that surface contextually relevant information in near real-time
Optimize and fine tune our vector databases and embeddings to solve for accurate domain understanding
Drive technical decisions and collaborate with product to build AI features that solve real user pain point
Build monitoring systems to track model performance, costs, and reliability metrics
Stay on top of the latest developments in AI and rapidly prototype new capabilities
Use modern developer tools like Cursor and CoPilot to maximize productivity
Qualification
Required
5+ years of AI research experience, with at least 2 years focused on RAG and AI copilot systems
Strong proficiency in modern AI infrastructure - vector databases, embedding models, agentic workflows (LangGraph, MCP etc.)
Deep experience architecting end-to-end AI systems that combine multiple components; LLMs, hybrid search indexes (lexical, vector, and knowledge graphs) and agents
Track record of optimizing retrieval systems for both accuracy and performance at scale
Data-driven mindset with experience in designing metrics and evaluation frameworks for AI systems
Strong software engineering foundation with expertise in Python and modern AI/ML infrastructure
Strong user empathy and collaboration skills with the ability to work across product, engineering, and customer-facing teams
Preferred
Advanced degree (MS/PhD) in Computer Science or related fields strongly preferred
Benefits
Equity in a rapidly growing startup
Comprehensive Health/Dental/Vision insurance
Company
Sybill
AEs are burning out.
51-200 employees
H1B Sponsorship
Sybill has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (4)
Funding
Current Stage
Growth StageTotal Funding
$14.6MKey Investors
GreycroftNeotribe Ventures
2024-07-30Series A· $11M
2023-07-01Seed· $2M
2020-10-15Pre Seed· $1.6M
Leadership Team
Soumyarka Mondal
Co-Founder and CTO
Recent News
2025-09-29
2023-06-02
Company data provided by crunchbase