Join a high-growth startup that scaled from £0 to £2.5M ARR in just six months. As our third founding engineer, you will work directly with experienced founders to build the first AI lesson generation tool teachers actually love. You will own features end-to-end, shaping the technical infrastructure for over 200,000 global users.
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Founding Engineer at Chalkie
Join Chalkie AI, one of Europe's fastest-growing EdTech startups, as a Founding Engineer. Having exploded from zero to £2.5M ARR in just six months, Chalkie is already helping 200,000+ teachers reclaim their time through AI-driven lesson planning. As the third engineer on the team, you will work directly with YC-alumni founders to scale a platform already used by 20,000 people weekly. If you are a product-obsessed full-stack developer who loves the 0-to-1 journey and wants to radically impact global education, this is your chance to own a venture-backed tech stack from day one.
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This role is no longer actively hiring, but Jack can still help you discover similar open roles that fit.
Location
Remote (United Kingdom)
Compensation
£80k-£100k + Equity
Company
Chalkie
Role overview
Education
Chalkie is an AI-powered educational technology platform that helps teachers create curriculum-aligned lessons, classroom resources, and teaching materials in minutes. Founded in 2024, the platform uses artificial intelligence to generate standards-aligned learning materials including slides, activities, and worksheets based on subject, education level, and curriculum requirements. Teachers can input a topic and key details such as year group and learning objectives, and the platform creates customized classroom-ready content. Chalkie includes an AI-enabled slide editor allowing teachers to refine and personalize lessons to their specific needs. The company aims to reduce teacher workload and planning time, enabling educators to focus more on classroom teaching and student engagement.
What you will do
- Lead full-stack development using NextJS and Laravel to ship production-ready features for 20,000+ weekly active users.
- Architect and scale technical infrastructure on GCP and Digital Ocean to support millions of future students and teachers.
- Collaborate daily with the CEO, CTO, and CPO to ideate, problem-solve, and execute the core product vision.
Who this is a fit for
- Proven experience building products from 0-to-1 as a former founder or early-stage startup engineer.
- Strong full-stack proficiency in PHP/Laravel and React/NextJS with a passion for AI-first development workflows.
- Product-minded engineer who prioritizes user experience and rapid shipping over perfect code abstraction.
Why this role is remarkable
- Massive traction with £2.5M ARR and 200k+ users achieved in under six months with a lean, elite team.
- Direct impact on global education by building tools that save teachers hours of planning time every week.
- High-autonomy founding role with significant equity and the ability to define the engineering culture from day one.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Chalkie wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.