Senior Full Stack Developer - AI Powered CAPTCHA Solution

The role you're about to read about is solving a problem that drives me mad every single day.

Let's talk about the business:

• 💻 The problem - CAPTCHA is absolutely broken. Speaking candidly, I've never met a single person that thinks "selecting all of the cars" in an image proves that they're a human being (especially as we usually end up selecting the wrong pictures haha).
• 👤 Their product - they're building a deeply complex AI powered invisible CAPTCHA process to verify whether or not a human is interacting with a website/product.
• 💰 Their funding - backed by some incredible US based investors who have fully invested in the long term growth of this business.
• 🚀 Their ambition - to go through a huge acquisition in the not-too-distant future.

So to summarise - you'll be working with an incredible global AI startup that have the potential to be absolutely huge.

👥 Here's what they're hiring for:

• You'll absolutely love what they do - this isn't just a job to you, being deeply technical is something you're genuinely passionate about.
• You'll ideally be a Polyglot with strong experience across Javascript, TypeScript and backend (typed) languages like Rust. Full stack experience is key.
• You'll have proven experience building compilers (or decompilers).
• You'll be someone that's incredibly ambitious and excited about (hopefully) being a part of a successful acquisition in the not-too-distant future.
• As a bonus, you'll also know what obfuscation is.

💵 Here's what they're offering:

• $130k-$140k salary (plus a guaranteed review post next fundraise in early 2026).
• Full remote working from anywhere in the world (ideally within the US as you'll be working to their hours).
• Equity within the business.
• An option to relocate to the US with full VISA sponsorship in 2026.

Interested in finding out more? Hit that apply button and we'll be in touch if your profile is a good match. 🤞