Full Stack Developer – TypeScript / Next.js / AI

Full Stack Developer – TypeScript / Next.js / AI – Full-Time Remote

We're hiring a Full Stack Developer to join Kleo, a fast-growing AI content creation platform.

This is a full-time, long-term remote position.

We're a small team, so we're looking for someone who wants to take real ownership of features rather than simply complete tickets.

WHAT WE'RE LOOKING FOR

Ideally, you have:

• 3+ years of full stack development experience
• Strong TypeScript experience
• Experience with Next.js / React
• 2+ years working with relational databases such as PostgreSQL
• Experience with cloud platforms, ideally Vercel
• Experience building background jobs / async workers
• Experience building AI-powered products or integrating LLMs
• Experience using AI coding tools such as Claude Code, Codex or Cursor
• Strong debugging and problem-solving skills
• Good written English

Bonus:

• Experience building Chrome Extensions
• Experience building chat-based AI products
• Experience working on SaaS products
• Strong product and design sense

WHAT YOU'LL BE DOING

You'll take ownership of features from beginning to end. This includes:

• Understanding the problem
• Helping design the solution
• Architecting the implementation
• Building frontend and backend functionality
• Testing and shipping your work
• Fixing bugs and responding to technical support issues
• Improving existing parts of the product

We don't want someone who needs every implementation decision made for them. We're looking for someone who can be given a problem, think through the best solution, and take ownership of getting it shipped.

YOU SHOULD GENUINELY LIKE AI

AI is a major part of both our product and how we work internally. You should already be experimenting with AI coding tools and keeping up with what's happening in AI.

WHY JOIN KLEO?

Kleo is growing quickly, and you'd be joining while the engineering team is still small. You'll have a lot of ownership and the opportunity to have a real impact on the product. As we grow, there will also be opportunities to move into more senior and engineering leadership roles.

• 100% remote
• Full-time
• Long-term position
• Small team
• Lots of ownership
• Work directly on an AI product
• Opportunity to grow with the company

SALARY

Salary is negotiable and based on experience. When applying, please tell us the monthly salary you would be looking for in USD for a full-time, long-term position.

HOW TO APPLY

Please include the following in your application:

1. Your GitHub and/or portfolio.
2. The best product or SaaS application you've personally worked on and exactly what you were responsible for.
3. An example of a technically difficult feature you've built.
4. Your experience with TypeScript and Next.js.
5. Your experience building AI / LLM-powered features.
6. Which AI coding tools you currently use and how you use them.
7. An example of a background worker or async system you've built.
8. Your expected monthly salary in USD.
9. When you would be available to start.

IMPORTANT: Start your application with the word KLEO so we know you've read the full job post.

We're much more interested in seeing what you've actually built than receiving a generic cover letter.