You're building something that matters. You shouldn't have to choose between shipping fast and shipping right.
Full-stack web, mobile, and AI development for startups and founders who need a technical team that ships — not consultants who just talk.
Full-Stack Development, End to End
Web Applications
You need a web app that performs, ranks, and converts — not a template with your logo on it.
We build server-rendered, production-grade web applications with Next.js, React, and TypeScript. Fast, accessible, and SEO-ready from day one.
Marketing sites · Dashboards · SaaS platforms · E-commerce
Mobile Apps
Building native for iOS and Android separately doubles your cost and halves your speed.
We ship cross-platform mobile apps with React Native and Expo — one codebase, both platforms, native performance.
Consumer apps · Internal tools · Marketplace apps
AI & LLM Integration
Vibe coding and AI tools are accelerating output — but beware the Jevons paradox: when something becomes cheaper and easier, people use more of it, not less. Applied to code, that means AI makes it trivially easy to generate features — so teams generate more of them, faster, with less oversight. A junior shipping new features every day sounds great until the codebase becomes unmaintainable and nobody can debug what the AI wrote.
We embrace AI to speed up delivery and reduce costs, but with the engineering judgement to know when it helps and when it creates debt. We build custom AI features, LLM pipelines, and MCP servers into your product — with the architecture to support them long-term.
Chatbots · AI agents · Data pipelines · Intelligent automation
Technical Consultancy
You’re making decisions that will define your tech for years, and you need someone who’s been there.
Architecture reviews, code audits, and technical strategy. We help you make the right calls before the first line of code, during the build, and when you go into production.
Pre-build planning · Tech stack decisions · Scaling advice
From Idea to Production
Discovery
We dig into your product, your market, and what success actually looks like. You get a clear scope, a realistic timeline, and a team that understands what they’re building before a single line is written.
Build
No disappearing acts. We work in short iterations with weekly demos — you see real, working software every week. Priorities shift? We adapt. You’re never more than a Slack message away from your team.
Launch & Beyond
We don’t just hand over a zip file. We deploy to production, write the docs your next hire will actually need, and stick around for support. Your product ships ready to scale.
Who We've Worked With
From two-person startups to global organisations — we work with early-stage founders and established teams alike.
Helped develop WPP Open’s launch into China, building on their AI-powered marketing tooling to deliver a complex, multi-market platform. The challenge: integrating multiple regional APIs and compliance requirements into a single coherent product under tight deadlines.
Embedded in the mobile development team for the NHS App design refresh — an app used by 30 million people. Built new Vue 3 components, wrote Cypress test suites with mocked OpenAPI services, and mentored senior developers on architecture decisions.
Built the contactless payment infrastructure for Manchester’s public transport network. React with Next.js on the frontend, AWS CDK for infrastructure-as-code, serverless architecture for scalability — plus CI/CD pipelines to keep the whole thing shipping reliably.
Startups We've Built For
Fintech MVP
Built the mobile app and API for an early-stage long-term investment platform — from zero to app store.
AdTech Startup
Developed the core product for an advertising technology startup, shipping fast to validate the market.
Jewellery Fabricator
Built the digital platform for a startup jewellery fabrication business, turning a manual process into a scalable product.
Lending Platform
Developed the application and underwriting flow for an early-stage loans company.
Who's Behind MPL
Built by a developer, for founders.
I'm Daniel — a lead TypeScript developer with over a decade of experience shipping products across web, mobile, and cloud. I appreciate the trust from clients like WPP, the NHS, and Transport for Greater Manchester, which has helped me refine my expertise and deliver impactful solutions.
I started Marketplace Labs because I've seen too many founders burn through runway on agencies that over-promise and under-deliver. Having built products under pressure with tight budgets and led teams inside large organisations, I understand the importance of reliable, mission-aligned technical expertise.
When you work with MPL, you're not handed off to a junior. You're working directly with someone who has shipped fintech apps, built AdTech platforms from scratch, developed contactless payment systems, and contributed to an app used by 30 million people. I write the code. I make the architecture calls. I pick up the phone. When the project needs it, I bring in trusted developers I've worked with before — but I'm always the one leading the work.
Ready to Build Something?
Prefer to talk it through? Book a call and we'll discuss your project, timeline, and how we can help.
Marketplace Labs Ltd
85 Great Portland Street
London, W1W 7LT
Tools We Reach For Most
We pick the right tool for the job. These are the ones we reach for most.