Founding Engineer (Full Stack)

Imagine AI (YC F25); San Francisco (CA); On-site; USD 120,000 - 200,000; Full time

Job summary

A growing tech startup in San Francisco seeks a full stack developer to own the entire tech stack, from customer interactions to product features. Candidates should have 2-5 years of experience and be proficient in a diverse tech stack including Nextjs, Typescript, and more. This position offers a competitive salary of $120K - $200K plus equity. Join a dynamic, impactful team where your contributions directly influence company success.

Qualifications

• 2-5 years of experience in software development.
• Experience in building full stack applications from 0 to 1.
• Proficient in the listed tech stack.

Responsibilities

• Own the entire tech stack from end to end.
• Join customer calls and provide customer support.
• Build features into our product immediately.

Skills

Proficient in tech stack (Nextjs, TailwindCSS, Typescript, etc.)

Experience with LangGraph

Customer communication

GitFlow branching strategy

Clean and maintainable code

Job description

We encourage you to read more about how we operate in our handbook.

About Imagine AI

We automate LinkedIn marketing through executive led content for mid market companies. We are serving over 30 companies from Series A to IPO’d companies, including MongoDB, Rippling, and Corgi Insurance. We started in June 2025 and launched out of Y Combinator’s F25 cohort. Our co-founders are Sky and Neo.

About This Role

Location: In person in San Francisco CA.

Compensation

$120K - $200K + equity based on experience (1% - 3%). You can read more about this at the compensation section in our handbook.

Tech stack

Nextjs, TailwindCSS, Typescript, Vercel, MongoDB, Supabase, Stripe, LangGraph, Python, Git

What your day will look like

You will be one of our first few hires at Imagine AI, which means you will have a huge responsibility and impact in our business. We expect you to own the entire tech stack from end to end and start contributing immediately. You will join customer calls, talk to them directly, and build features into our product immediately. You will also live on slack and provide customer support directly to our customers. This means if you are excited about owning the entire product lifecycle, you should come work with us! You will see your effort being reflected in our revenue curve directly!

Hard requirements

• 2-5 years of experience
• You must be proficient in our tech stack (bonus point for LangGraph)
• You must have built full stack application from 0 to 1, owning the entire product

Soft requirements

• You must love talking to customers and translating their feedback to product updates
• You must be familiar with GitFlow branching strategy
• You must write clean and maintainable code
• You must have taste and opinion on what a great UI looks like

Hiring process

Read more at the hiring section in our handbook.