--- title: "Custom Software Development United Kingdom | Mejix" description: "Custom software development for the United Kingdom. Product, platform, AI, and cloud engineering with senior engineers serving London, Manchester, Birmingham." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Service", "@id": "https://www.mejix.com/custom-software-development-united-kingdom#service", "name": "Mejix — Custom software development the United Kingdom", "url": "https://www.mejix.com/custom-software-development-united-kingdom", "image": "https://www.mejix.com/mejix-logo.svg", "areaServed": [ { "@type": "Country", "name": "United Kingdom" } ], "provider": { "@type": "Organization", "name": "Mejix", "url": "https://www.mejix.com" }, "serviceType": "Custom software development services" }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Do you work with custom software development clients in the United Kingdom?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — Mejix delivers custom software development engagements for clients across the United Kingdom and the surrounding region. From London DTC brands to UK B2B retailers, we deliver Shopify Plus, AI integration, and custom software with native-English engagement leads and senior engineers in your timezone." } }, { "@type": "Question", "name": "Are your engineers in the same timezone as the UK?", "acceptedAnswer": { "@type": "Answer", "text": "Full-day overlap with the UK — standups, demos, and reviews on London business hours. Our engagement leads run discovery, demos, and reviews on your business hours, with senior engineers covering the rest of the workday." } }, { "@type": "Question", "name": "Can you handle VAT, GDPR, and local compliance for the UK?", "acceptedAnswer": { "@type": "Answer", "text": "UK VAT, post-Brexit EU shipping, and GBP / multi-currency Shopify Plus configurations." } }, { "@type": "Question", "name": "What does a typical custom software development engagement look like?", "acceptedAnswer": { "@type": "Answer", "text": "We start with a fixed-scope discovery (1–2 weeks) to align on outcomes, then deliver in 2-week sprints with weekly demos. Most engagements run 3–9 months, with optional retainers for ongoing work." } }, { "@type": "Question", "name": "Can your team meet on-site in the UK?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — our engagement leads travel to the UK for kickoffs, workshops, and quarterly reviews whenever they move the work forward. Day-to-day delivery is remote across our New York and Cluj teams." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.mejix.com/" }, { "@type": "ListItem", "position": 2, "name": "Locations", "item": "https://www.mejix.com/locations" }, { "@type": "ListItem", "position": 3, "name": "Custom software development the United Kingdom", "item": "https://www.mejix.com/custom-software-development-united-kingdom" } ] } ] --- ## We value your privacy We use cookies to analyze traffic and improve your experience. You can accept all, decline non-essential cookies, or customize your preferences. See our [privacy policy](/privacy). CustomizeDeclineAccept all [![Mejix](/mejix-logo.svg)](/) [Home](/) [Company](#about) [Services](/services) [Industries](/industries) [Our Work](/work) [AI Solutions](/ai-solutions) Start a project→ Start here→ the United Kingdom # Custom software development in the United Kingdom Mejix is a senior software consultancy serving the United Kingdom. Working with British brands across London, Manchester, and the wider UK market. We design, build, and modernise products for ambitious teams — fast, focused, and accountable. Book a discovery call[+1 (212) 401-6213](tel:+12124016213) ![Custom software engineering team delivering for the UK businesses](/assets/product-development-hero-BO46bdoe.webp) What we build for the UK teams ## Custom software, built to ship Product strategy, engineering, and platform work for ambitious teams — delivered by senior engineers, on your timezone. ### Product & MVP development Take a product from sketch to revenue: discovery, design, and full-stack engineering with a senior team. ### Platform & SaaS engineering Multi-tenant SaaS, billing, RBAC, observability, and SOC-2-ready architecture — built to scale past Series A. ### Legacy modernisation Strangle-fig migrations off legacy stacks (PHP, .NET, monoliths) into modern TypeScript / Node / cloud services. ### Cloud, DevOps & data AWS, GCP, Azure, Vercel, Supabase — production-grade infrastructure, CI/CD, and data pipelines without the platform-team headcount. ### Integrations & APIs ERPs, CRMs, payments, identity, EDI, and AI APIs — wired up, documented, and monitored. ### Embedded staff augmentation Senior engineers embedded into your team for 3+ months when you need velocity without the hiring overhead. [Explore software consulting & development](/services/product-development) Why local matters ## A custom software partner in your timezone ### On the ground in your market Working with British brands across London, Manchester, and the wider UK market. ### Regional coverage Serving teams across London, Manchester, Birmingham, Edinburgh. ### Senior engagement lead Full-day overlap with the UK — standups, demos, and reviews on London business hours. ### Certified delivery Shopify Plus Partner, AWS / GCP / Azure aware, SOC-2-ready engineering. From London DTC brands to UK B2B retailers, we deliver Shopify Plus, AI integration, and custom software with native-English engagement leads and senior engineers in your timezone. Certifications & Recognitions ![OpenAI](/assets/openai-DdkhCwT6.webp) ![make-AI](/assets/make-ai-DZ1amQCt.webp) ![n8n](/assets/n8n-CP9gA77z.webp) ![React Native](/assets/react-native-CgsFAPha.webp) ![Android](/assets/android-IQPYmEUz.webp) ![iOS](/assets/ios-B2Ii1G2I.webp) ![NestJS](/assets/nest-tz5A0lzF.webp) ![OpenAI](/assets/openai-DdkhCwT6.webp) ![make-AI](/assets/make-ai-DZ1amQCt.webp) ![n8n](/assets/n8n-CP9gA77z.webp) ![React Native](/assets/react-native-CgsFAPha.webp) ![Android](/assets/android-IQPYmEUz.webp) ![iOS](/assets/ios-B2Ii1G2I.webp) ![NestJS](/assets/nest-tz5A0lzF.webp) Our Work ## Case Studies [![Dish by Metro](/assets/dish-CjDFvSzr.webp) Finance and Banking ### Dish by Metro We support DISH by Metro's Dish Pay platform with dedicated cross-functional teams delivering end-to-end product development — a high-volume digital payment solution serving the US restaurant market. ](/work/case-studies/dish-by-metro)[![Dine Market](@/assets/services/case-dine.png) Manufacturing ### Dine Market We built the Dine Market B2B wholesale ordering platform from scratch — digitising a food supply chain that previously ran on phone calls and spreadsheets, connecting restaurants and food suppliers across NY/NJ/CT. ](/work/case-studies/dine-market)[![Yehuda](/assets/yehuda-DnUKWjlE.webp) Jewelry Tech ### Yehuda We built and operate Yehuda's global SaaS platform — mobile, web, backend, hardware, and AI — running 188K+ operations monthly with 2,200+ active subscriptions across 60+ countries. ](/work/case-studies/yehuda) Reviews & Certifications ## Our clients praise us for our great results [Read all reviews](#) ![Client logo](data:image/webp;base64,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) Mejix has successfully created and launched a functional mobile app, which allows the client to reach and diagnose over 5,000 patients. Despite geographically dispersed clients, the team is accommodating and communicative. They've worked hard to deliver the project on time and within the budget. Candice Wu Head of Design, Yehuda FAQ ## Custom software development in the United Kingdom — common questions Do you work with custom software development clients in the United Kingdom? Yes — Mejix delivers custom software development engagements for clients across the United Kingdom and the surrounding region. From London DTC brands to UK B2B retailers, we deliver Shopify Plus, AI integration, and custom software with native-English engagement leads and senior engineers in your timezone. Are your engineers in the same timezone as the UK? Full-day overlap with the UK — standups, demos, and reviews on London business hours. Our engagement leads run discovery, demos, and reviews on your business hours, with senior engineers covering the rest of the workday. Can you handle VAT, GDPR, and local compliance for the UK? UK VAT, post-Brexit EU shipping, and GBP / multi-currency Shopify Plus configurations. What does a typical custom software development engagement look like? We start with a fixed-scope discovery (1–2 weeks) to align on outcomes, then deliver in 2-week sprints with weekly demos. Most engagements run 3–9 months, with optional retainers for ongoing work. Can your team meet on-site in the UK? Yes — our engagement leads travel to the UK for kickoffs, workshops, and quarterly reviews whenever they move the work forward. Day-to-day delivery is remote across our New York and Cluj teams. ![](data:image/svg+xml,%3csvg%20width='44'%20height='46'%20viewBox='0%200%2044%2046'%20fill='none'%20xmlns='http://www.w3.org/2000/svg'%3e%3cpath%20d='M19.6667%203.33333H12.2C8.27966%203.33333%206.31948%203.33333%204.8221%204.09629C3.50496%204.7674%202.4341%205.83827%201.76298%207.1554C1.00003%208.65278%201.00003%2010.613%201.00003%2014.5333V26.6667C1.00003%2028.8366%201.00003%2029.9216%201.23855%2030.8117C1.88582%2033.2274%203.77265%2035.1142%206.1883%2035.7615C7.07846%2036%208.16343%2036%2010.3334%2036V41.4495C10.3334%2042.6928%2010.3334%2043.3145%2010.5882%2043.6338C10.8099%2043.9114%2011.146%2044.073%2011.5013%2044.0726C11.9098%2044.0722%2012.3953%2043.6838%2013.3661%2042.9071L18.9322%2038.4543C20.0692%2037.5446%2020.6378%2037.0898%2021.2708%2036.7664C21.8325%2036.4794%2022.4304%2036.2697%2023.0482%2036.1429C23.7446%2036%2024.4727%2036%2025.9288%2036H29.4667C33.3871%2036%2035.3472%2036%2036.8446%2035.237C38.1618%2034.5659%2039.2326%2033.4951%2039.9037%2032.1779C40.6667%2030.6806%2040.6667%2028.7204%2040.6667%2024.8V24.3333M40.9498%203.05025C43.6834%205.78392%2043.6834%2010.2161%2040.9498%2012.9497C38.2161%2015.6834%2033.784%2015.6834%2031.0503%2012.9497C28.3166%2010.2161%2028.3166%205.78392%2031.0503%203.05025C33.784%200.316582%2038.2161%200.316582%2040.9498%203.05025Z'%20stroke='%231A3760'%20stroke-width='2'%20stroke-linecap='round'%20stroke-linejoin='round'/%3e%3c/svg%3e) ## How can we help? Whether you're scoping, migrating, or scaling — our custom software partner team is ready to help teams in the United Kingdom. Full-day overlap with the UK — standups, demos, and reviews on London business hours. Contact us ![Mejix](/mejix-logo.svg) New York, USA Office 541 W 25th St, New York, NY 10001 tel: +1 (212) 401-6213 Cluj, Romania Office tel: +40 (746) 778-303 Latin America, Costa Rica tel: +1 (212) 401-6213 hello@mejix.com C. ★★★★★ 7 Reviews ## Company - [Home](/) - [About Us](/about) - [Careers](/jobs) - [Events](/events) - [Insights](/insights) - [AI Hub](/ai-hub) - [Contact Us](#contact) ## Services - [Software Consulting & Development](/services/product-development) - [Embedding AI into Organisations](/services/ai-development) - [Ecommerce & Shopify Plus](/shopify-plus-b2b) - [Ecommerce Platform Comparison 2026](/services/shopify-plus/platform-comparison-2026) - [Digital Transformation & Process Automations](/services/digital-transformation) - [Product Development](/services/product-development) - [Staff Augmentation](/services/managed-it) - [Managed IT Services](/services/managed-it) - [Marketing Services](/services) ## Industries - [Finance and Banking](/industries/finance) - [Health and Medical](/industries/health) - [Luxury Fashion and Jewelry](/industries/luxury) - [Manufacturing](/industries/manufacturing) - [Retail and Services](/industries/retail) - [Media and Communication](/industries) ## Locations - [New York City](/shopify-plus-agency-new-york) - [Los Angeles](/shopify-plus-agency-los-angeles) - [San Francisco](/shopify-plus-agency-san-francisco) - [Miami](/shopify-plus-agency-miami) - [United States](/shopify-plus-agency-usa) - [United Kingdom](/shopify-plus-agency-united-kingdom) - [Germany](/shopify-plus-agency-germany) - [Romania](/shopify-plus-agency-romania) - [All locations](/locations) © 2026 Mejix. 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