Jinba.io

Enterprise AI workflow automation platform

Growth Engineer

Full-Stack EngineeringConfirmed live in the last 24 hours

Full-timeSan Francisco, CA, USANo salary listed

About the Job

Requirements

The candidate must have full-stack skills in TypeScript, React, SQL, and Python.
The candidate must be fluent with data, including BigQuery and Mixpanel or a similar tool, and be able to write queries, build dashboards, and derive independent insights.
The candidate must have experience with product growth, including activation, retention, and conversion.
The candidate must be able to ship quickly, measure outcomes, and iterate.
The candidate must be comfortable working in an early-stage environment and crafting hypotheses for testing.

Responsibilities

Build and optimize the marketing site, signup flows, and onboarding.
Design and run A/B tests across the funnel.
Integrate and automate the customer relationship management and lead-nurturing systems.
Ship growth features in the product, including referrals, usage triggers, and activation loops.
Work directly with the Head of Growth to prioritize high-leverage experiments.

Desired Qualifications

Experience as a technical founder who built something from zero.
Experience at a product-led growth or developer-tools company.
Familiarity with customer relationship management and marketing automation tools such as Loops, HubSpot, or Segment.

Senior Engineer (Growth) — Jinba (YC W26)

Location: San Francisco
Reports to: Head of Growth

About Jinba

Jinba is the enterprise workflow automation platform that lets teams describe workflows in natural language and deploy them as APIs or MCP servers. We have 40,000+ daily enterprise users at Japanese Fortune Global 500 companies — and we're just getting started.

We're part of Y Combinator W26.

The Role

We're hiring a Growth Engineer to own the systems that turn signups into customers. You'll work across the full stack — building landing pages, instrumenting funnels, running in-app experiments — whatever it takes to move the metrics.

This is an engineering role with a growth mindset, not a marketing role with some coding involved. You'll ship real features, run real experiments, and have direct impact on revenue.

What You'll Do

Build and optimize our marketing site, signup flows, and onboarding
Design and run A/B tests across the funnel
Integrate and automate our CRM and lead nurturing systems
Ship growth features in the product (referrals, usage triggers, activation loops)
Work directly with the Head of Growth to prioritize high-leverage experiments

What We're Looking For

Full-stack skills: TypeScript, React, SQL, Python
Data fluency: BigQuery, Mixpanel (or similar). You can write queries, build dashboards, and pull your own insights
Product growth experience: You've thought about activation, retention, and conversion — not just features
Bias to action: You ship fast, measure everything, and iterate
Comfort with ambiguity: We're early. You'll participate in crafting high leverage hypotheses to test.

Nice to Have

Ex-technical founder (you've built something from zero)
Experience at a PLG or developer tools company
Familiarity with CRM/marketing automation (Loops, HubSpot, Segment, etc.)

Why Jinba

YC W26 — breakout startup
Real enterprise traction before Demo Day
Small team, big ownership
San Francisco-based, working on hard problems

About the Company

Jinba.io

Enterprise AI workflow automation platform

Jinba.io builds AI workflow automation for enterprises. Its platform lets business teams describe needs in natural language to auto-create executable workflows with Jinba Flow, then run them safely in Jinba App through a chat interface or auto-generated forms; Jinba Toolbox offers reusable AI tools in Python and TypeScript. It integrates with Salesforce, Slack, databases, and private AI models via AWS Bedrock and Azure AI, and supports on-premise or private cloud deployment with SOC 2, RBAC, end-to-end encryption, and audit logs. The goal is to help large organizations automate complex processes at scale while preserving governance, security, and seamless integration with existing tools.

Company size: 11-50
Company stage: Seed
Total funding: $130K
Headquarters: San Francisco, CA
Founded: 2025

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