Founding Full-Stack Engineer | $150K–$200K + Equity | AI × Video Creation (Partner Role via Cof[...]

CoffeeSpace

San Francisco (CA)

On-site

USD 150,000 - 200,000

Full time

14 days+

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Benefits offered by this job

Meaningful ownership and early equity

In-person collaboration in San Francisco

Part of a successful team with a track record

Job summary

A leading early-stage venture firm is seeking a Founding Full-Stack Engineer to work directly with the founders on innovative AI-based products. You will be responsible for building both web and mobile applications and shipping key features at a rapid pace. This role requires a strong foundation in frontend and backend development, with significant ownership of the product's success. The ideal candidate is an ambitious problem-solver who thrives in a fast-paced startup environment. Competitive compensation and equity options are included.

Qualifications

1-3 years of experience in tech roles, preferably AI-related.
Ability to communicate clearly and meet deadlines.
Comfortable with both frontend and backend tasks.

Responsibilities

Build across web and mobile apps, and admin tools.
Ship real features rapidly including AI integrations.
Work closely with founders on product strategy.

Skills

Frontend development

Backend development

AI product shipping

DevOps

Communication

Tools

Next.js

React Native

FFmpeg

Job description

This is a CoffeeSpace Partner Role — we work with select early-stage founders building ambitious, category‑defining companies. We help them find their foundational hires through a mix of deep search, outbound, and semantic matching.

This particular role is with Humeo, a San Francisco‑based AI product lab building the next interface of creative expression.

About CoffeeSpace Partner Roles

This particular role is with Humeo, a San Francisco‑based AI product lab building the next interface of creative expression.

The Company — Humeo

Humeo is building new interfaces for creation and expression in an AI‑native world.

Today, less than 5% of the world’s 5.2B social media users create regularly — not because they lack expertise, but because creation is still time‑consuming, high‑friction, and mentally demanding. Meanwhile, short‑form video dominates attention.

Humeo believes AI can close this gap.

Their first product functions like an AI Short‑Video Production Crew in Your Pocket:

AI Strategist — Generates a personalized short‑form content plan
AI Director — Guides you through recording with interview‑style prompts
AI Editor — Produces polished, ready‑to‑post videos in minutes

This is just the entry point into a broader roadmap:

AI‑accelerated expression, knowledge interfaces, and cognitive tools that help people create more with less effort — and build a healthier relationship with attention.

Humeo recently raised $3.5M to accelerate this vision and is now expanding its early team. This is not a traditional opening — it’s an opportunity to help define the product, shape the workflows, and potentially grow into a true founding role as the company scales.

The Founder — Joseph Chin

Founder of DocuAsk.ai
Former full‑stack engineer at Mustard Systems (London)
Engineering background across Ruby, Python, Node.js
Deep experience with LLMs, semantic search, and cognitive interfaces
Fast, high‑agency builder with a strong product instinct

Humeo is the blend of media DNA × AI engineering × cultural insight — grounded in Joseph’s velocity and maker energy.

The Role — Founding Full‑Stack Engineer

You’ll build across the entire product surface, from mobile capture to editing pipelines to the orchestration layer connecting it all. This role pairs directly with the founders and touches UI, backend, infra, and AI systems whenever the work demands it.

You will

Build across the entire product: web app (Next.js), mobile app (React Native), admin tools, pricing flows, and dashboards.
Ship real features fast: multi‑agent orchestration, FFmpeg video stitching, Remotion pipelines, and LLM/VLM integrations.
Architect systems that don’t fall over when we hit one million users in a day.
Work directly with founders on product decisions, UX flows, and technical direction.
Dive into anything that moves the product forward — UI, backend, infra, orchestration, computer vision, ML, or devops.
Own problems end‑to‑end without waiting for permission or detailed instructions.

You're right if you

Work fast, care deeply, and take extreme ownership.
Bias toward action and learning — you figure things out quickly and hate waiting.
Can move between frontend, backend, and light infrastructure without drama.
Velocity > experience — Even if you have 1–3 years experience, you are perfect if you’re hungry and have shipped AI products.
Communicate clearly and hit deadlines (or flag issues early).
Want to build a rocketship in person with the founders, not a cozy nine‑to‑five.

You're wrong if you

Need hand‑holding.
Want big‑company structure.
Move slowly or over‑intellectualize instead of shipping.
See yourself as just a backend dev or just frontend.

Why builders join

Meaningful ownership and early‑exercise equity.
In‑person build hub in San Francisco with the full team.
Be part of a team that has a track record of success.

Compensation

Base Salary: $150,000–$200,000

Equity: Meaningful early ownership (stock options / RSUs)

We target a total compensation range of $200,000–$250,000 (base + equity). Our equity packages are designed to offer significant long‑term value and align incentives with company growth. Specific grant details will be discussed during the interview process and calibrated to experience, impact, and role scope.

Seniority level