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Pulley

Staff Backend Engineer, AI

Pulley, San Francisco, California, United States, 94199

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Staff Backend Engineer, AI

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Pulley

About Pulley Pulley's mission is to make it easier for anyone to start a company. We believe that more startups should exist and that founder‑led companies are more successful in the long term. With Pulley's cap‑table management tools, companies can better understand and optimize their equity for the long term. Starting a company is hard enough. Managing equity shouldn't be. We're a high‑performing team redefining how early‑stage leaders build and manage their companies in an AI‑native world. Pulley is growing quickly with over 4,000 customers, including Linear, Runway, Fathom, and Roam, fueled by top investors such as Founders Fund, Stripe, and General Catalyst. We’re expanding the team to meet growing demand and are looking for passionate, execution‑focused self‑starters to help us build the next generation of tools for founders.

About the role We're looking for a Staff Backend Engineer who will architect and build the foundational systems powering our AI‑native product. You'll own the design and implementation of scalable backend services that enable intelligent agents to automate complex equity workflows. This is a 0‑1 opportunity where you'll define service boundaries, design APIs, and build the distributed systems that make AI capabilities production‑ready and reliable at scale. In this high‑impact role, you'll work directly with leadership to shape our technical strategy and establish architectural patterns that will guide our engineering organization as we scale.

What You'll Do

Architect distributed systems

that power AI agent orchestration, handling complex multi‑step workflows with reliability and observability

Design and implement core backend services

in Golang for high‑performance, concurrent operations and Python for AI/ML integrations and data pipelines

Build robust APIs and service interfaces

that abstract AI capabilities for consumption by multiple clients and internal systems

Own the technical roadmap

for backend infrastructure supporting LLM integrations, vector search, and real‑time data processing

Establish architectural patterns and standards

for service design, data modeling, and inter‑service communication

Drive system scalability and reliability , implementing caching strategies, database optimization, and async processing patterns

Build data pipelines

that process equity data, embeddings, and user interactions to continuously improve AI model performance

Collaborate cross‑functionally

to translate business requirements into technical architecture and make pragmatic build vs. buy decisions

Mentor engineers

on backend best practices, system design, and technical decision‑making

What You Bring Technical Foundation

7+ years

of backend engineering experience building production systems at scale

Expert‑level proficiency

in Python for AI/ML integrations, data processing, and scripting

Strong Python skills with deep understanding of concurrency patterns, performance optimization, and production Go services

Proven experience designing and building distributed systems, including microservices architecture, event‑driven systems, and async workflows

Deep knowledge of API design (REST) and service‑to‑service communication patterns

AI Infrastructure Experience

Demonstrated experience building backend systems that integrate LLMs and AI capabilities into production applications

Hands‑on work with agent frameworks, LLM orchestration, and AI service reliability

Familiarity with RAG architectures, vector databases (Pinecone, Weaviate, Qdrant), and embeddings pipelines

Experience building evaluation frameworks and observability for AI systems

Understanding of prompt engineering and LLM API optimization (latency, costs, rate limits)

System Design & Leadership

Track record of architecting greenfield services

from concept to production with scalability and maintainability in mind

Experience with database design and optimization (PostgreSQL, Redis, time‑series databases)

Strong foundation in system observability, monitoring, and debugging distributed systems in production

Proven ability to lead technical initiatives and establish engineering best practices

Experience mentoring engineers and elevating team technical capabilities

Bonus Points

Experience with Kubernetes, Docker, and cloud infrastructure (AWS/GCP)

Background in FinTech or regulated industries

Contributions to open‑source projects or technical writing

Familiarity with AI‑powered developer tools like Cursor or Copilot

✨ Why work at Pulley

We've moved beyond early‑stage uncertainty

— Our product has traction and we’re building on a solid foundation, yet we’re still early enough to shape the company’s trajectory as we scale.

Make it easier for anyone to start a company

— Founders turn bold ideas into reality; starting a company is hard enough. Managing equity shouldn't be.

Work with a high‑performing and passionate team

— We value thoughtful, ambitious collaboration with traits like First Principles Thinking, Shipping It & Iterating, Boldly Honest & Aggressively Considerate, and Ego‑less Learner.

Benefits

Competitive salary and equity

Medical, Dental, and Vision insurance

Unlimited PTO + Winter holiday break

Parental leave

Generous stipends for WFH, learning, wellness, and AI tools

401(k) match (US) / Pension match (Canada)

Annual Salary Range: $200,000—$240,000 USD — The range above reflects the typical salary range for this role. The final offer will depend on factors such as your experience, interview performance, level, and other considerations assessed during the hiring process.

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Engineering and Information Technology

Industries

Software Development

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