---
title: "Founding Product Engineer"
company: "Clera"
company_url: "https://www.remjobs.works/companies/clera"
url: "https://www.remjobs.works/job/clera-founding-product-engineer-36d2c5da-2e98-4b55-a603-e77c43f62817"
apply_url: "https://jobs.ashbyhq.com/clera/f68d92b9-c1cb-4347-900d-a1f00a05d395"
workplace: onsite
location: "San Francisco"
employment_type: full-time
seniority: founding
role: software-engineering
region: united-states
skills: ["llm", "mongodb", "python", "react", "typescript"]
date_posted: 2026-09-15T17:20:16.258Z
first_seen_by_remjobs: 2026-09-15T17:50:31.424Z
---

# Founding Product Engineer

**Clera** · San Francisco

Apply: https://jobs.ashbyhq.com/clera/f68d92b9-c1cb-4347-900d-a1f00a05d395

## About Clera

Stop applying to startups. Start getting introduced. Clera connects you directly with hiring managers at the companies you want to work for.

## About the role

##### About the Role

This is a founding-level product engineering role at an early-stage B2B SaaS startup building an AI-driven pricing and monetization platform. You will own entire product modules end-to-end, working directly with customers and leadership to shape architecture, ship production-quality systems, and ensure every feature is drivable by LLM agents. On a small team, your technical judgment and customer-facing scope will have an outsized impact.

##### What You'll Do

- Scope, design, build, and iterate on whole product modules, from versioned APIs to React UI, in close collaboration with customers.

- Design and evolve architecture for agentic AI systems across Slack bots, terminal interfaces, web, and vendor integrations.

- Ensure features are drivable by LLM agents via MCP/FastMCP servers and conversational interfaces.

- Move pricing and business logic from the client into backend services to preserve financial fidelity.

- Extend and maintain a typed pricing ontology using Pydantic models covering entities such as SKU, Proposition, Persona, Pricing, Customer, Contract, and Quote.

- Lead architectural reviews and technical discussions to keep systems robust, extensible, and secure.

- Establish testing, observability, deployment, and performance monitoring practices for AI-driven features.

- Mentor peers, influence product strategy, and help define engineering culture and best practices.

- Treat money-handling code as load-bearing infrastructure and prioritize thorough root-cause analysis for production issues.

- Adopt and improve an AI-native SDLC where agents assist with code generation and automated review gates.

##### What We're Looking For

- 8+ years of software engineering experience with proven ownership of product areas at startup or staff-level scope.

- Deep backend expertise with production experience in FastAPI, Python, and MongoDB or a comparable stack.

- Credible full-stack range: strong backend depth plus the ability to ship clean, independent React and TypeScript UIs.

- Track record of taking ambiguous customer problems all the way to shipped features without a dedicated PM.

- Experience with B2B SaaS monetization concepts: pricing models, packaging, quoting, billing, or CPQ.

- Experience building or integrating AI-assisted features and agent-driven workflows, such as LLM-driven interfaces or MCP-like endpoints.

- High standards for correctness, especially around financial logic and data integrity.

- Nice to have: built MCP servers or tooling for LLM agents.

- Nice to have: experience with billing, CPQ, metering, or pricing systems.

- Nice to have: familiarity with data residency, SOC 2, or GDPR-compliant development practices.

- Nice to have: prior experience as a technical founder or early employee who shipped a 0-to-1 B2B product to paying customers.

- Must be authorized to work in the United States; visa sponsorship is not available.

##### Compensation & Benefits

Salary range: **$200,000 to $250,000 USD annually.** Visa sponsorship is not available.

##### Location

On-site in **San Francisco, CA**. Candidates must be based in San Francisco or willing and able to relocate.

---

Source: Clera's own career page, read by RemJobs. Canonical HTML version: https://www.remjobs.works/job/clera-founding-product-engineer-36d2c5da-2e98-4b55-a603-e77c43f62817