Founding Product Engineer

Job Description

Job Description

Founding Product Engineer

San Francisco, CA · On-site · Full-time
Compensation: $150,000–$275,000 + 0.5%–1.0% equity

About the Company

We're an early-stage, venture-backed startup building an AI-native outbound sales platform that replaces the SDR-and-GTM-engineer stack teams cobble together today. We have strong early revenue traction, a growing roster of high-growth startup customers, and are scaling fast. Small, dense, design-obsessed team where the bar for engineering taste, product instinct, and aesthetic quality is very high.

Founded 2025 · 1–10 people · Industry: AI Tools

The Role

As a Founding Product Engineer, you'll own the surfaces customers (founders, GTM leaders, sales engineers) live in every day and make a system of action that sits on top of every GTM data source — CRMs, enrichment APIs, LinkedIn, intent signals, website visitor data — feel like one beautifully designed product rather than a plumbing project. You'll work directly with the founders, ship to production every week, and have an outsized influence on what the product becomes.

What you'll be doing

• Build the product surfaces customers use daily: the sequence and enrollment system (per-lead customization, multi-sender, conditional branching), the embedded AI agent layer that drafts, researches, and enrolls on the user's behalf, and eval/observability tooling
• Take products from 70 to 100 — ship features to production-grade quality
• Sit directly in Slack with customers and translate their requests into product improvements
• Pair with the founders on what to build next, contributing as much product intuition as engineering work
• Help define what "Linear-quality B2B SaaS" feels like in our category

Tech stack: Next.js, React, Python, FastAPI, Supabase

Requirements

• 0-4 years engineering, new grads OK
• DS / CS / IE / Operations background
• Customer-facing + technical communication
• Full-stack (Next.js, React, Python, Supabase)
• Product ops instinct
• SF in-person, 5 days a week

Green Flags

• DS/CS/IE background with customer-facing experience
• Prior founder, founding engineer, or first-3 hire at a YC-stage startup. Direct calibration with the role.
• Engineering taste demonstrated through shipped products at Linear, Attio, Raycast, Vercel, Notion, Figma, or comparable quality bar.
• Power user of GTM tools (Apollo, Outreach, Clay, Attio, HubSpot). Has actually run outbound, not just built features for sales teams.
• Strong school background paired with prior startup ownership signal.
• Public portfolio: shipped side projects, GitHub history showing fast iteration, technical writing on product engineering or AI agent UIs

Red Flags

• Pure backend or infrastructure engineer without product intuition or design taste.
• Big-co tenure without startup adaptation. Will struggle with the pace and ambiguity.
• Wants a spec handed to them. The role requires reading customer signals from Slack and converting them into product decisions.
• Requires visa sponsorship
• Cannot or will not work 5 days in person in SF.

Why Join

• Founding-level ownership: work directly with the founders, ship to production weekly, and shape the product's direction
• Strong early traction at a fast-scaling startup targeting significant near-term growth
• A design-obsessed team holding a "Linear-quality B2B SaaS" bar
• Full perks: free lunch and dinner, transport to and from the office, health insurance, laptop and equipment

Details

• Location — San Francisco, CA
• Work policy — In-person, 5 days a week
• Compensation — $150,000–$275,000 + equity
• Visa sponsorship — None available (US citizen or existing work visa required)
• Employment type — Full-time