Full Stack Developer (£90k+) at Plinth.uk

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

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Job Title

Full Stack Developer

Salary

£90k+

Company Description

Plinth.org.uk is a fast-growing London-based platform powering £55 million in annual charitable funding for over 1,500 organizations. By building a comprehensive system of record for the underserved charity sector—which is larger than the advertising and restaurant industries combined—they are radically increasing funding and efficiency for local organizations through AI-driven tools.

Job Description

You will build a comprehensive platform used by 1,500+ charities to manage grants, safeguarding, and reporting. Working in a high-autonomy team of 15, you’ll own features from ideation to production. This role is perfect for a capable generalist who wants to ship quality code without the friction of endless meetings or project managers.

Location

London, UK

Why this role is remarkable

• Join a high-leverage engineering culture with no PMs, no daily scrums, and a "never the delay" mentality that prioritizes shipping quality software over bureaucracy.
• The platform is experiencing massive traction, managing £55 million in annual funding with 4x year-on-year growth and a user base of over 1,500 charities.
• You have complete freedom to define your own role and use any AI tools you prefer, supported by a leadership team that values mission-driven output over years of experience.

What You Will Do

• Write clean, scalable TypeScript code across the full stack using React and Node.js to solve complex problems for foundations and local charities.
• Architect and build new features like grant management systems, AI impact reporting, and safeguarding tools from initial concept to production maintenance.
• Build sophisticated migration tools to help charities transition from manual spreadsheets and legacy systems onto Plinth.org.uk’s unified system of record.

The ideal candidate

• A capable generalist with multiple years of experience shipping production code and managing complex systems, ideally having owned products from end-to-end.
• Strong proficiency in React and TypeScript is essential, with additional experience in Node.js and Elasticsearch considered a significant advantage for this role.
• A mission-driven individual who values "childish enthusiasm" and transparency, preferably with previous experience or a deep interest in the charity or non-profit sector.

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.