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Stack jobs in United Kingdom

  • Full Stack Developer
    Full Stack Developer
    10 days ago
    £50000–£70000 yearly
    Full-time
    London

    Concord AI is building collaboration infrastructure for AI coding agents. Tools such as Claude Code, Codex, and Cursor often work in isolation, without awareness of other agents’ work, decisions, or potential conflicts. Concord provides a shared workspace where agents can coordinate tasks, share context, hand off work, and avoid duplication. We are looking for an entry-level Full Stack Developer to join our small team and work directly with the founders across our open-source product and Concord Cloud. What you’ll work on • Build user-facing features with React, Next.js, and TypeScript, • Develop APIs and backend services for Concord Cloud, • Design interfaces for agents, tasks, activity, and shared workspaces, • Work with databases, authentication, and real-time application state, • Integrate Concord with tools such as GitHub, Linear, and coding agents, • Improve onboarding and simplify technically complex workflows, • Prototype ideas quickly and share them with users, • Talk with early users, debug issues, and ship improvements, • Contribute to technical and product decisions as the product develops You’ll own features end to end from an early stage, rather than spending your first months only addressing small tickets. Who we’re looking for You may be a recent graduate, self-taught developer, bootcamp graduate, or someone with up to around two years of professional experience. We are more interested in what you can build than where you studied. You should have: • Built at least one complete web product or substantial personal project, • Good knowledge of JavaScript or TypeScript, • Experience with React and modern web development, • An understanding of APIs, databases, and backend development, • Strong software engineering fundamentals, • The ability to work independently and solve problems, • Good communication skills, • Curiosity about AI, coding agents, and developer tools You do not need professional experience with every technology we use. Bonus experience • Building and deploying a SaaS product or side project, • Contributing to open source, • Working with Next.js, Postgres, or similar technologies, • Building projects with LLMs or coding agents, • Using Claude Code, Codex, Cursor, or similar tools Why join us As a small team, we offer significant ownership from the beginning. You’ll work directly with the founders, contribute to architectural and product decisions, and ship features that can materially influence the product. You’ll also help explore how humans and AI agents can work together effectively. How to apply Please send: • Your CV or LinkedIn profile, • Your GitHub, portfolio, or something you have built, • A few sentences about a project you are proud of or an interesting technical problem you have solved No formal cover letter is required.

    No experience
    Easy apply
  • Lettings Negotiator
    Lettings Negotiator
    1 month ago
    £1000–£4000 monthly
    Full-time
    London

    Now Hiring: Letting Negotiator at Life Stay Done with the 9-5 slog, customer service scripts, or restaurant shifts? Life Stay, a top property management crew, is hunting for a Letting Negotiator to join our hustle-hard team! We need fighters—people who don’t take “no” for an answer, chase the cash, and live for the thrill of closing deals. You don’t need perfect English or fancy experience—just guts, grit, and a hunger to win. Our top earners prove it: persistence pays, and we’ve got the cash to show for it! What We Offer: Position: Letting Negotiator Salary: £1,000–£4,000/month (the more deals you smash, the fatter your paycheck) Perks: Flexible hours, a crew that’s got your back, monthly bonuses, and a company car for the heavy hitters Role Snapshot: Get in front of tenants and figure out what they want Show properties like you own the place Push, negotiate, and lock in deals—no backing down Keep clients and tenants coming back for more Speak English well enough to get by (if you’ve got sales or lettings chops, even better—but not required) Who We Want: Relentless go-getters who thrive on “yes” People who connect fast and don’t quit Money-hungry hustlers with a nose for sales Anyone sick of dead-end 9-5s, call centers, or waiting tables Attitude over polish—bring the drive, we’ll show you the ropes Why This Beats the Grind: Work when you want, not when you’re told Join a team that rewards results, not clock-watching Turn your hustle into a career with big payoffs Ditch the apron, headset, or timecard. Join Life Stay and stack cash in London’s property game. Your breakout starts here—grab it!

    Immediate start!
    Easy apply
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