Full-Stack Engineer

Jackandjillai — United Kingdom · Posted ~6 hours ago

Full-time £60000-£100000 + equity

Skills

Full-stack development React Next.js AI/ML integration Software architecture Technical ownership AI/ML JavaScript TypeScript

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Summary ✨ AI‑Generated

A rapidly scaling startup is seeking a Full-Stack Engineer to work closely with technical leadership and build high-impact features across the stack. You’ll have substantial ownership over architecture and implementation, working with React, Next.js, and advanced AI models to automate complex business operations. This is an opportunity to shape engineering practices while building products in a lean, fast-moving environment.

Highlights

Strong compensation with equity, direct collaboration with technical leadership, broad ownership across the stack, and the opportunity to shape architecture and engineering culture in a rapidly scaling startup.

Description

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title Full-Stack Engineer Salary £60k-£100k + Equity Company Description OpenInfo is a London-based startup building an AI-native operating system for physical goods businesses. They have rapidly scaled to £1m ARR in just 18 months with zero customer churn. Operating with a lean team of seven, OpenInfo is transforming operations for 230,000 wholesalers across the UK, US, and Europe through advanced AI-driven automation. Job Description As a Full-Stack Engineer at OpenInfo, you will work directly with the CTO to build and scale features that transform wholesaler operations. You will take true technical ownership across the stack—from React and Next.js to world-leading AI models—shaping the architecture and engineering culture of a rapidly scaling, high-impact startup. Location London, UK Why this role is remarkable Join a high-traction startup that hit £1m ARR in 18 months with zero customer churn and a lean 7-person team.Gain true technical autonomy, making critical decisions on strategy, architecture, and tooling while working with cutting-edge AI foundation models.Participate in a career-defining journey with significant equity and a private office in Central London, backed by a massive market opportunity. What You Will Do Build and scale features using Typescript, React, and Next.js to automate complex workflows for physical goods businesses globally.Collaborate directly with the CTO to define the technical strategy and help build out the future engineering team and culture.Integrate and experiment with world-leading AI models to solve real-world operational challenges for over 230,000 wholesalers. The ideal candidate Possesses 2+ years of professional experience in full-stack development, specifically with Typescript, React, and cloud environments like AWS.Demonstrates an enterprising mindset with a desire for high ownership and the ability to thrive in a rapid learn-and-fail startup cycle.Is technically excellent and motivated to be a founding-level member of a team scaling an AI-driven operating system for a huge market. Who are Jack & Jill? 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. 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. How does this work? 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 it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.