---
title: 'Machine Learning Engineer (Staff) at Lightfield'
canonical: 'https://feeny.ai/job/machine-learning-engineer-staff-lightfield-san-francisco-qd8sm8hcwfjw'
type: 'job'
last_seen: '2026-09-08'
---

# Machine Learning Engineer (Staff) at Lightfield

- **Company:** Lightfield
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2024-10-10
- **Last confirmed live:** 2026-09-08
- **Apply:** https://jobs.ashbyhq.com/lightfield/b10fed3d-9c2e-4755-91df-8d83e97b3a28

## Job description

## ABOUT LIGHTFIELD

Lightfield is an AI-native CRM that assembles itself from your email, calendar, and meetings. It captures every interaction and turns it into organized context: accounts, tasks, follow-ups, and insights, so nothing slips through the cracks.

We’re rethinking CRM from first principles. Instead of forcing teams to maintain rigid systems, Lightfield learns from how companies actually work, adapting, automating, and surfacing the insight that drives growth. We’re building the CRM platform we always wished existed: fast, intelligent, and genuinely helpful.

The market agrees. Over 5,000 companies have used Lightfield since we launched in November, making us the fastest-adopted product in our category. We are backed by Greylock, Lightspeed, and Coatue, and our founders previously built Tome, a generative AI presentation product used by over 25 million people. Before Lightfield, our team worked on Llama, Instagram, Facebook Messenger, Pinterest, Google, and Salesforce.

## ABOUT THE ROLE

Lightfield's AI/ML team builds the experiences at the core of our product, developing new applications to wow our customers.

Today, the team is focused on building a powerful, domain-specific AI that outperforms generic LLMs.

We’re inspired by the challenge of creating innovative new AI products for people doing serious work, and we’re looking to grow our AI/ML team to meet that challenge.

## WHAT YOU'LL DO

- Create and ship magical, highly-differentiated AI experiences that sales teams are eager to use
- Craft Lightfield's AI/ML strategy in tight collaboration with founders and execs
- Identify user needs that are well suited for AI/ML solutions, frame the problems, and collaborate with product leaders on solutions
- Prototype innovative, LLM-powered experiences, and drive their development into robust product features
- Help build a world class AI/ML engineering team by recruiting and mentoring teammates

## WHO YOU ARE

- You have a BS or MS degree in CS, AI, or applied math
- You have 7+ years of experience building AI/ML based products in NLP domains
- You have a strong understanding of deep learning AI/ML frameworks or cloud services
- You have hands-on ML Ops experience

## BONUS POINTS

- Experience leading AI/ML product initiatives
- Publications in applied AI/ML scientific journals
- Experience navigating open source/vendor solutions in LLM ops space (LangChain, Llama, Pinecone, etc)

## BENEFITS & PERKS

- Competitive salary
- Meaningful early equity
- Health insurance (medical, dental, vision)
- 3 weeks of PTO
- 11 paid company holidays + we enjoy a winter holiday break
- 3 months of paid family leave
- Wednesdays work from home
- Regular team dinners, events, offsites, and retreats
- 401k plan
- Other perks include: commuter and lunch stipend

## About Lightfield

## Company Overview
- **One-liner**: Lightfield is an AI-native CRM that automatically captures every customer interaction from email, calendar, and meetings, and builds a living world model of your company’s relationships and decisions.
- **Entity Type**: Private (Startup)
- **Headquarters**: San Francisco, California, United States
- **Founded**: Not publicly available
- **Founders**: Henri Liriani, Keith Peiris

## Core Business
- Primary industry: AI-native CRM / Sales & Customer Relationship Management
- Target customers: B2B sales teams, customer-facing organizations (SMB to mid-market)
- Mission or purpose statement: “Help founders build better businesses” by creating software that provides deep, continuous customer understanding — a world model of your company starting with your customers. [lightfield.app/company](https://lightfield.app/company)

## Products & Services
- **Lightfield Platform (AI-native CRM)** — An open platform that ingests email, calls, and meetings automatically. It offers:
  - **Natural language agents**: Build agents with prompts (no code) to prospect, manage follow-ups, and coach deals.
  - **Automated data capture**: Every interaction is recorded, attributed, and connected into accounts, tasks, and timelines.
  - **Reasoning & automation**: Ask questions like “which customers asked for this feature?” and get answers with citations; automate pipeline updates, enrichment, and revival emails.
  - **Security & compliance**: SOC 2 Type II, HIPAA, ISO 27001. [lightfield.app](https://lightfield.app/)

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Key Metric**: Not publicly available (revenue not disclosed)
- **Notable Investors/Partners**: Not publicly available
- **Growth Signals**:
  - Headcount: 31 employees (+192.3% YoY) [linkedin.com/company/lightfld](https://www.linkedin.com/company/lightfld)
  - Active job postings: 16 (up +128.6% YoY)
  - LinkedIn followers: 4,863 (+2709.6% yearly growth)
  - Monthly web traffic: +83.5% (14.2K visits) [same LinkedIn source]
  - Rapid product releases: frequent changelog updates (May/June 2026) with features like API controls, email conversations, custom objects, SSO, and meeting recording. [lightfield.app](https://lightfield.app/)

## Competitive Advantages
- **AI-native, not retrofitted**: Differs from traditional CRMs by capturing raw interaction data (actual words, chronology, causality) rather than manual summaries or fields.
- **World model approach**: A system that understands what happened, why it happened, and what is likely to happen next — enabling safe, high-quality automation and deep customer insights.
- **Strong security posture**: Holds SOC 2 Type II, HIPAA, and ISO 27001 certifications — rare for an early-stage startup.
- **Open platform**: API and MCP server for custom integrations, allowing data to flow in and out freely.

## Strategic Focus
- Continue building the “world model of your company” by deepening automatic capture, causal reasoning, and agent capabilities.
- Scale go-to-market (hiring a Founding Account Executive, Community Lead) while expanding the platform’s AI and infrastructure teams.
- Maintain compliance and trust as the platform matures (mentioned roadmap includes “Foundations” and “Agents” on the product page).

## Why Work Here
- **Early-stage impact**: Join a team of 31 people (largely technical: 38% engineering/design) and help shape the foundational product. Recent hires come from Tome, Gong, Uber, and other high-growth companies.
- **Remote/hybrid friendly**: Team distributed across US (majority), Canada, and India. [linkedin.com/company/lightfld](https://www.linkedin.com/company/lightfld)
- **Engineering culture**: AI/ML deep tech focus — building agents, world models, and reasoning systems. Titles include Machine Learning Engineer, GenAI Platform Engineer, AI Product Engineer, and Infrastructure Lead.
- **Growth trajectory**: Headcount more than doubled in the last year, with active hiring across all departments. The company’s mission emphasizes “deep customer understanding,” appealing to builders who want to solve real business problems with AI.
- **Transparent product velocity**: Public changelog shows frequent releases (weekly), indicating a fast-moving, iterative engineering culture.

## Sources
1. [lightfield.app](https://lightfield.app/)
2. [lightfield.app/company](https://lightfield.app/company)
3. [jobs.ashbyhq.com/Lightfield](https://jobs.ashbyhq.com/Lightfield)
4. [linkedin.com/company/lightfld](https://www.linkedin.com/company/lightfld)
5. [lightfield.app/blog/why-we-built-lightfield](https://lightfield.app/blog/why-we-built-lightfield)

## Other roles at Lightfield

- [Growth Operations Lead](https://feeny.ai/job/growth-operations-lead-lightfield-san-francisco-jje1p5c0fcpg) — San Francisco, CA
- [Special Projects: New Markets](https://feeny.ai/job/special-projects-new-markets-lightfield-san-francisco-9gemhpb2wdsh) — San Francisco, CA
- [VP of Sales](https://feeny.ai/job/vp-of-sales-lightfield-san-francisco-1q687yg1shp1) — San Francisco, CA
- [Founding Account Executive, Strategic Accounts](https://feeny.ai/job/founding-account-executive-strategic-accounts-lightfield-san-francisco-10pk3zx887gc) — San Francisco, CA
- [Founding Account Executive](https://feeny.ai/job/founding-account-executive-lightfield-san-francisco-xccqq6pqxeva) — San Francisco, CA
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- [Head of Product Marketing](https://feeny.ai/job/head-of-product-marketing-lightfield-san-francisco-y2vajspzb5hh) — San Francisco, CA
- [Community and Events Lead](https://feeny.ai/job/community-and-events-lead-lightfield-san-francisco-m895vz63gfm7) — San Francisco, CA
- [Founding Recruiter, Technical](https://feeny.ai/job/founding-recruiter-technical-lightfield-san-francisco-3sx2yr3kh7vc) — San Francisco, CA
- [Founding Recruiter, GTM](https://feeny.ai/job/founding-recruiter-gtm-lightfield-san-francisco-hdckzsh8x71q) — San Francisco, CA