Demo

Founding Engineer

Flowtel (YC W25)
San Francisco, CA Full Time
POSTED ON 5/7/2026
AVAILABLE BEFORE 6/6/2026
Founding Engineer

Location: San Francisco, CA (room & board available for non-SF candidates)

Type: Full-time


About Flowtel

Flowtel is building the next generation operating system for hospitality, powered by modern AI agents that can handle everything from booking to room service. We just launched, secured $3 million in seed funding, and are backed by Y Combinator.

We’re at the very beginning of our journey and already delivered to customers. Our mission is big: to redefine how hotels and guests interact by creating voice-driven, intelligent experiences that actually feel personal. If you’ve ever wanted to help shape a product, culture, and company from day one, this is your chance.


What you’ll work on...

You’ll join the founding team of engineers and help build our first products.

We are creating AI agents for hospitality that handle guest conversations, streamline operations, and unlock better experiences for staff and travelers. Think reliable voice and chat, simple automations for common workflows, and clear insights that help teams move faster.

You’ll work across the stack, from agent logic and data pipelines to backend integrations and polished product experiences. You will ship with a small, focused team that moves quickly and cares about the details.


How we build

Flowtel is an AI first company. Every part of the business uses AI thoughtfully. Sales, marketing, operations, support, and of course engineering all run with AI at the core. We keep the team small and talented so that everyone is an engineer at heart, hands on with code, systems, and product decisions.


Our stack:

ReactJS, NextJS, TypeScript, Python, AWS, LangGraph, and Vapi.

We believe in strong testing practices and take Test-Driven Development seriously.


Who we’re looking for:

We’re looking for builders who are excited by AI and engineers who experiment with new tools, test what’s possible, and move quickly.

You don’t need years of AI research experience. What matters is curiosity, adaptability, and the drive to make AI practical and useful.

You might be a great fit if you:

  • Love exploring new AI frameworks and workflows (LangChain, LLMs, automation agents).
  • Enjoy thinking about how AI can transform a customer experience or internal workflow.
  • Learn quickly and build fast, even when you’re figuring things out for the first time.
  • Thrive in an environment where everyone’s hands-on and the feedback loop is short.
  • Care about building a strong, positive, “we’re-in-this-together” culture.

We move quickly, iterate constantly, and keep our eyes on the next big milestone.


Why join Flowtel
  • AI-first culture: Every workflow, every product, and every decision is built with AI in mind. You’ll be surrounded by teammates who are pushing what’s possible.
  • Early impact: You’ll be one of the first engineers at a YC-backed startup, shaping both the product and the engineering culture.
  • Community & housing: If you’re not in San Francisco, we offer free room and board in a co-living setup with other teammates.
  • Fast growth: We’re assembling our core team in Q4 2025 and already have our first customers. We plan to raise our Series A within 3 quarters.
  • Autonomy: You’ll own your work from concept to deployment with minimal bureaucracy.
  • Upside: Competitive salary plus meaningful equity in a company designed to scale fast.


Compensation
  • Junior Engineer: $70K – 100K 0.3 – 0.5% equity
  • Mid-Senior Engineer: $100k - 180K ~0.5% equity
  • Ex-founder-Level: $150K - 200K 1 – 3% equity


Your first 90 days
  • Get fully onboarded to Flowtel’s AI workflows and toolchains.
  • Help ship the MVP voice agent and integrations
  • Work closely with the founders on product direction
  • Contribute to our engineering culture and processes


Ready to build something that matters?

If you’re excited by the idea of creating the foundation of a new kind of hospitality experience, we’d love to meet you. Send us your resume, a quick note about why you’re interested, and any links to projects or code you’ve built.

Let’s build something unforgettable together.


Salary : $70,000 - $100,000

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