Hire the Best soapUI Specialists in London, UK

I'm a solutions person: if I can't build it, I'll find it. Apps, websites, AI assistants, booking systems, automations — my skill set is broad on purpose, so you don't need three freelancers where one will do. And when the best answer is an existing tool rather than a custom build, I'll tell you that too — you're paying for the problem to go away, not for billable hours. Recent builds: two apps designed, developed and published on the Apple App Store (subscriptions, payments, full review process); a complete client intake web app for a London practitioner — secure forms, GDPR-compliant data handling, admin dashboard with exports; an AI assistant embedded on a retailer's website, synced to their live product catalogue and serving 1,000+ visitors; plus three years of retained WordPress/WooCommerce management for the same happy client. How I work: modern AI-assisted development, which means production quality at small-business prices — and I review everything by hand, because shipped and reliable beats clever. Behind the tech sits 20+ years of project coordination and award-winning client service, so I communicate clearly, hit deadlines, and make the process easy, not just the product. I can help you with: client/booking apps · AI assistants trained on your business · WordPress & WooCommerce · e-commerce · membership and payment systems (Stripe, StoreKit) · App Store publishing · websites and PWAs · content and brand assets. Returning Top 10% Upwork freelancer (Rising Star, 90%+ five-star rating). Tell me what's making life hard — let's build the thing that fixes it.

Written by an actual human. Ironic, since building with AI is my whole job, but every word here is mine, and so is every message you'll get. If a reply ever reads like ChatGPT wrote it, fire me. Most people who find me are holding an app that looks finished and isn't. Built in Lovable or Bolt over a weekend, demoed well, and now it's supposed to take real money from real users, and nobody knows whether it will hold. Or a contractor went quiet in week three and took the repo knowledge with them. That's the job. I read code I didn't write, work out what's solid and what only appeared to work, and get it to production properly. WHAT USUALLY TURNS UP API keys in the client bundle. Auth where any logged-in user can read another tenant's data. Stripe webhooks with no idempotency, so a retry double-charges. RLS policies that read correctly and don't actually isolate anything. No tested backup. Demo screens propped up by an empty backend. None of it shows up in a demo. All of it shows up in production. START WITH AN AUDIT. $400, 2 days. You give me repo access. You get a written report: every finding with file and line reference, severity, reproduction steps, and what it costs to fix. Auth and tenant isolation, exposed secrets, payment flow integrity, RLS correctness, behaviour under load. The report is yours whether or not you hire me for the fixes. You can hand it to any developer. Already have a developer and want a second opinion before launch? I do the review-and-verify side on its own. The person doing the work shouldn't be the person saying it passed. THEN, IF YOU WANT IT FIXED I keep what works, rebuild what doesn't, and hand the system back properly. Repo in your GitHub org, secrets rotated, staging and production separated, deploys you can roll back, and documentation good enough that the next developer doesn't need me. RECENT WORK Trimi. Lovable to Claude Code migration in two hours. Organic traffic 250k to 500k monthly after the migration and SEO push. Founders now ship updates without me. That was the point. Milpath. AI SaaS built with Claude Code and Codex, $5k MRR in 90 days. claudemarket.ai. My own AI directory, 60,000+ monthly visitors from technical SEO. Helpie AI. 1,000+ monthly active users. O-ts. 2x conversion rate after rebuild. ALSO MVP builds from scratch, idea to live product taking payments. AI apps and agents: Claude API, OpenAI API, RAG, chatbots. Migrations off Lovable, Bolt.new, Replit, Base44 and v0. Supabase auth, RLS, edge functions, Postgres schema design. Stripe checkout, webhooks, subscriptions. Claude Code and CLAUDE.md setup so your team can build AI-native without me. Blocked on a security review or an enterprise questionnaire? I do production hardening with a written control summary you can hand to whoever is asking. Stack: Lovable, Claude Code, OpenAI Codex, Base44, Replit, Bolt.new, Supabase, React, Next.js, TypeScript, Vercel, Stripe, n8n, OpenClaw. THE GUARANTEE Free scoping call before you spend anything. We map features, flows, milestones and price. Not a fit, you keep the plan. Working prototype in 3 weeks, real functionality on a live database, no mockups. Unlimited revisions within scope. WAYS TO WORK Audit, $400 fixed. Review and sign-off only, if you have a developer already. Fixed-price build or rescue, typically $2,500 to $15,000. Fractional developer, 10 to 30 hrs/week. Retainer from $650/month. You own the code either way. WHY THE SPEED IS REAL I was a software engineer at brainpool.ai, a London AI consultancy, building production LLM systems with LangChain, RAG pipelines and the Claude and OpenAI APIs before going freelance. That's the part that matters here. I can read the code, not just prompt it. When something breaks I debug it, rather than re-prompting until the error goes away and three new ones appear underneath. Claude Code, Lovable, Codex and Supabase are my daily tools, and after 50+ shipped projects I know where they fall over. Which generated auth patterns leak data, which edge functions time out under load, which screens are propped up by nothing. Knowing the failure points is what makes moving fast safe. WHAT CLIENTS SAY "Every technical finding, missing security headers, robots.txt, llms.txt, structured data, was specific, accurate and independently verified." SaaS founder, product audit. "Gets the job done without all the problems of working with the discount freelancers we all know about." Figma to Lovable build. Both from my verified reviews below. ABOUT ME I'm Zac. One developer in London, no account managers, no handoffs. I teach this stack to 3,000+ developers on YouTube and in a paid community. I keep the project load small, so if I'm at capacity I'll say so. No Shopify stores, and if you want pixel-perfect Figma work I'm the wrong hire Daily overlap with US Eastern. Hit Invite to Job and tell me what's broken. Fixed-price proposal within 24 hours

🏆 Custom Supabase + React | Wordpress Custom Theme + ACF | Shopify Expertise ⭐ Top Rated Freelancer ✅ 100% Job Success Ciao! I'm Linda, a senior full stack software engineer based in London. I have strong experience with Supabase, React, Next.js, Vue, React Native, Python, Shopify and WordPress. Within Wordpress I particularly work with custom themes such as Sage/Underscores/Bones starter and ACF, or customizing Elementor pages. I'm an expert in Houzez and Homey themes, with extensive WPML multilingual experience. I'm a Booknetic expert as well, specializing in appointment booking systems for service-based businesses. I'm a Tailwind CSS enthusiast with solid experience in Anime.js, Three.js and GSAP. 𝗙𝘂𝗹𝗹 𝘀𝘁𝗮𝗰𝗸 𝗰𝘂𝘀𝘁𝗼𝗺 𝘄𝗲𝗯 𝗮𝗽𝗽 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Supabase, combined with either React or VueJS, plus TailwindCSS is my preference for fully custom apps that require a backend. This allows us to build any application can you dream up at a competitive rate. 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: - Custom themes from scratch (Sage, Underscores, _tw, and bones starter) - Elementor theme building & advanced customization - ACF Pro for flexible custom fields - WPML installation & multilingual configuration - Booknetic appointment booking systems 𝗝𝗦 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀 & 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲: - React, Next.js, Vue, React Native - Shopify custom themes & migrations (WordPress → Shopify) - Premium animations with GSAP & Anime.js - Tailwind CSS 𝗥𝗲𝗮𝗹 𝗘𝘀𝘁𝗮𝘁𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: - Houzez & Homey theme installation, configuration & customization - Custom IDX integration (Showcase IDX, IDX Broker, MLS) - CRM integration (Brevo, HubSpot, luxury real estate CRMs) I’m skilled at turning designs from PSDs, Figma, or PDFs into responsive, pixel-perfect web pages. I quickly adapt to new tools and languages and am a dedicated perfectionist. 𝗗𝗲𝘀𝗶𝗴𝗻 𝗮 𝗽𝗿𝗼𝗯𝗹𝗲𝗺 𝗮𝘀 𝘄𝗲𝗹𝗹 𝗮𝘀 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁? No problem. I have a network of 3 designers specialising in different industries that I work with to help make sure the final product is both beautiful and converts better than ever. Being based in London but originating from Venice, Italy, I understand the US and UK markets as well as the EU. If you're looking for someone who delivers excellent results and isn't afraid of any design challenge and if you don't mind a strong Italian accent, then I'm your woman! Looking forward to working with you! Linda

I help businesses build, fix, and improve websites, online stores, and web applications that need to be reliable, practical, and easy to maintain. I’m a full-stack web developer with 10+ years of experience working with PHP, Laravel, JavaScript, React, Vue, WordPress, WooCommerce, Shopify, MySQL, MongoDB, APIs, payment integrations, automation, and deployment workflows. Most clients come to me when they need one of three things: 1. A website, store, or web app built from scratch 2. An existing system fixed, improved, or cleaned up 3. APIs, payments, dashboards, automations, or third-party tools connected properly I can help you with custom web applications, Laravel development, WordPress websites, WooCommerce stores, Shopify setup and customization, API development and integration, payment gateways like Stripe and PayPal, admin dashboards, MVPs, internal tools, n8n automations, bug fixing, performance improvements, and deployment support. I also use modern AI-assisted development tools like Claude and Codex to speed up delivery, reduce repetitive work, and move faster without cutting corners. Every solution is still reviewed, tested, and handled with proper developer judgment. What you can expect from me: Clear communication. Clean, maintainable code. Honest feedback when something can be done better. Regular progress updates. A developer who takes ownership instead of disappearing halfway through the project. I do not just write code and hand it over. I try to understand what the business actually needs, then build a solution that makes sense technically and commercially. My main stack includes: PHP, Laravel, WordPress, WooCommerce, Shopify, JavaScript, React, Vue, Livewire, MySQL, MongoDB, REST APIs, GraphQL, Docker, GitLab CI/CD, AWS, Azure, DigitalOcean, Stripe, PayPal, OpenAI API, Claude, Codex, and n8n. Whether you need a new website, an e-commerce store, a custom application, a messy system rescued, an API connected, or an automation workflow built, I can help you move from idea or problem to a working solution. Send me a message and tell me what you are trying to build or fix. I will give you a clear, honest recommendation before we start.

I build AI infrastructure that turns manual operations into automated revenue machines. Through my venture studio, I've shipped six production platforms across fitness, healthcare, recruitment, and analytics. What I build: • Custom agentic AI systems in TypeScript with Mastra - tool-using agents, multi-step reasoning • SaaS platforms with Stripe Connect, multi-tenant Supabase architecture, and role-based access • AI voice agents and receptionists handling inbound calls, lead qualification, and 24/7 booking • Native iOS apps in Swift/SwiftUI with production Node.js backends • Internal portals and analytics dashboards pulling real-time data from multiple APIs • Workflow automation with n8n, Make, and custom integrations when reliability matters Results from recent projects: • Cut client operating costs by 73% for a $108M business • Generated $17K+ MRR in 21 days through automated sales workflows • Reduced client onboarding from 45 minutes to under 2 minutes • Increased lead conversion by 400% with an AI receptionist In early 2024, I founded AI Fulfilment Organisation, a global AI venture studio with 10+ products in production and a team of 6. I also serve as CTO of TrainFlow, where I architected a white-label GoHighLevel CRM platform for online fitness coaching agencies. On the product side, I built TallCall AI (AI receptionist SaaS), Headhunt AI (recruitment platform), Flint (iOS AI agent app), and LifeOS (personal analytics dashboard). I care about shipping software that works in production, not prototypes that sit in staging. Every build comes with proper error handling, mobile-responsive design, and documentation your team can actually use. Send me a message with a brief overview of your project and I'll reply within a few hours.