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Senior AI Engineer

withpulleySan FranciscoEngineering
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Salary
$230K – $280K
Job type
Full-time
Experience
Senior · 4+ yrs
Posted
21 Sept 2026
Status
Open · checked 7d ago

About this role

This Senior AI Engineer role suits a product-minded software professional based in the San Francisco Bay Area who thrives in ambiguity and wants to build production LLM systems for commercial project permitting. The position is located in San Francisco with an in-person requirement of four days a week at withpulley.

Role Overview

As a Senior AI Engineer at withpulley in San Francisco, the person in this role will develop the intelligence behind the company's commercial permitting platform. The work centers on transforming messy inputs—such as scanned plan sets, jurisdiction codes, and application forms—into fast, structured, and reliable outputs that help architects, builders, and retailers avoid costly project delays.

Key Responsibilities

Own artificial intelligence features from end to end, covering user engagement, definition of workflow correctness, prompt and pipeline design, evaluations, deployment, and production iteration.
Convert unstructured permitting documents, city regulations, and jurisdiction workflows into structured data through extraction, classification, retrieval, and agentic workflows.
Establish evaluation and observability foundations to ship large language model features by defining ground truth, measuring quality, and tracking regressions.
Build with artificial intelligence agents daily, directing and shipping agent-driven work while maintaining quality standards.
Make technical and product choices that impact customers directly and mentor fellow engineers on large language model development.

Requirements

Four or more years of software engineering experience, including a substantial focus on building production large language model or machine learning systems.
Demonstrated history of owning a language model product surface end-to-end, handling data quality, evaluation design, cost, latency, and failure management.
Hands-on experience with large language models in production, including prompting, retrieval-augmented generation, structured extraction, and agentic workflows.
Experience designing evaluations to ensure reliability in production.
Practical experience building with artificial intelligence coding agents for substantial implementations.
Ability to architect durable systems and make pragmatic engineering tradeoffs.
Residency in the San Francisco Bay Area with availability to work in person four days a week.

Nice to Have

Experience with document understanding at scale, including optical character recognition, layout-aware parsing, or vision-language models.
Background in fine-tuning models or creating data pipelines for training and evaluation sets from real-world usage.
Industry experience in construction tech, govtech, proptech, or similar domains dealing with messy real-world documents.
Familiarity with modern full-stack development using TypeScript, React, and Google Cloud.
Early-stage startup experience helping build teams alongside products.
Mentorship experience or technical leadership across teams.

Skills and Tools

LLMs
RAG
Structured Extraction
Agentic Workflows
Evals and Observability
AI Coding Agents
OCR and Vision-Language Models
TypeScript
React
Google Cloud

Salary and Benefits

Salary range of $230K to $280K per year
Equity offers included

About the Company

Founded in 2021, withpulley provides artificial intelligence-powered permitting intelligence and expert guidance to eliminate delays for architects, builders, and retailers. The platform supports rollout programs for brands like J.Crew, Solidcore, and Hibbett Sports, as well as data center buildouts and EV charging networks. The company is backed by CRV, Susa Ventures, Fifth Wall, and leaders from Plaid, Segment, ServiceTitan, and Procore.

How to Apply

Interested candidates should apply on the official company careers page.

Skills and tech stack

TypeScriptReactGoogle CloudLLMsRAGLLMFine-tuning

Questions candidates ask

Where is the Senior AI Engineer position located?

The role is located in San Francisco, and the candidate must be based in the San_Francisco Bay Area with a requirement to work in person four days a week.

What is the salary and compensation for this role?

The position offers a salary between $230K and $280K alongside equity offers.

How many years of experience are required?

Candidates must have four or more years of software engineering experience, with a substantial portion dedicated to building production large language model or machine learning systems.

What tech stack and tools are used at withpulley?

The company uses TypeScript, React, and Google Cloud, alongside large language models, retrieval-augmented generation, and agentic workflows.

Is visa sponsorship available?

Visa sponsorship is not mentioned in the job posting.

Ready to apply?

The application is on the official withpulley careers page.

Apply on company site