Every page on this site
126 topic pages and 10 blog articles.
Case studies
MEDii Health
A clinic booking platform
Routebay
A delivery tracking app
Staywell
A hotel booking app
North Ledger
A finance operations portal
Dominique
A café ordering and kitchen board
Aussies Removals
A removals van diary and tracking app
Baypick
A warehouse pick and pack system
Deskgate
A multi-tenant visitor management system
Blog
Custom software development: when to build, what it costs, how to scope it
Custom software development is the right path when a product, a workflow or a set of integrations will not fit a package. Here is how a UK IT agency scopes, prices and delivers it.
Mobile app development in 2026: native, cross-platform or a PWA
Mobile app development still starts with the same question: native iOS and Android, a cross-platform stack, or a progressive web app. The answer is the product, not the fashion.
Web application development for business: architecture that lasts
Web application development is how most business software still ships: a browser product with a real backend, not a brochure site. Here is how to brief it so it can be run in three years.
Artificial intelligence in software development: practical uses, not demos
Artificial intelligence earns a place in software when it classifies, retrieves or drafts against your data with a human still in the loop. It does not earn a place as a chatbot on every page.
Cloud computing for SMEs: migration, cost and security
Cloud computing is not a badge. For an SME it is a decision about who runs the servers, how you pay, and what happens when something fails. Here is how to migrate without a surprise bill.
Ecommerce website development: Magento, Shopify or a custom build
Ecommerce website development is a platform choice with consequences for catalogue, checkout, integrations and who can change a banner. Magento, Shopify and custom each fit a different shop.
Digital transformation strategy for UK businesses: start with the work
Digital transformation is a programme of replacing manual, duplicated or trapped processes with systems people will use. It is not a slogan and it is not a single platform.
UI UX design that converts: from research to production screens
UI UX design is the work of making a product clear to use and possible to build. Conversion follows from fewer errors and shorter paths, not from decoration.
Software testing and QA: what to test before you ship
Software testing is how you find out whether the product you specified is the one you are about to release. QA is the practice that makes that finding routine, not a panic the night before go-live.
Cybersecurity for web and mobile applications: controls that ship
Cybersecurity for a product is identity, data handling, dependency hygiene and a way to respond when something goes wrong. It is not a logo in the footer.
Company
Company profile
SJ Technologies is a UK IT agency specialising in web, mobile and custom software development.
Management team
The people who run SJ Technologies, a UK IT agency.
Media coverage
Press and industry mentions of SJ Technologies, our UK IT agency.
Testimonials
Client testimonials for SJ Technologies, a UK IT agency.
Client speak
What clients say about our IT services.
Working infrastructure
How our UK IT agency builds, hosts and supports software.
Our clients
Organisations that use SJ Technologies as their IT agency.
Our work
Web, mobile and software projects from our UK IT agency.
Mobile
Mobile development
Native, cross-platform or PWA mobile apps from our UK IT agency. We choose the stack from the brief.
Cross-platform development
Cross-platform app development, consulting, migration, design, QA and support from our UK IT agency.
PWA development
Progressive web apps from our UK IT agency: installable sites that work on a phone without a store listing.
Open source
Open source customisation
SJ Technologies is a UK IT agency offering open source customisation for CMS and commerce platforms.
Magento development
Custom Magento for catalogues that have to last, from a UK IT agency.
WordPress development
WordPress for publishing, not a throwaway theme, from a UK IT agency.
Shopify development
Shopify stores fitted to how you actually sell, from a UK IT agency.
Ecommerce
Ecommerce solutions
Catalogues, checkout, payments and the warehouse links that make an order leave the building.
Shopping cart development
Custom carts from our UK IT agency: line items, discounts, tax and a checkout people finish.
Payment gateway integration
Payment gateway work from our UK IT agency: SCA, webhooks and a paid-or-not status you can audit.
B2B ecommerce
Trade ecommerce from our UK IT agency: accounts, price lists, quotes and orders that match how you already sell.
B2C ecommerce
Consumer ecommerce from our UK IT agency: catalogue, guest or account checkout, and peak trading you can survive.
AI and data
Data and analytics
Data and analytics from our UK IT agency: measurements you can use, from the data you actually have.
Artificial intelligence
AI services from our UK IT agency: assistants, classification and automation where they earn their keep.
AI consulting
AI strategy, integration and support from our UK IT agency.
Data science
Feedback analysis, metrics and task automation from our UK IT agency.
Database creation and management
Database design, migration and operations from our UK IT agency.
AI in the software life cycle
AI support for planning, development, testing and release from our UK IT agency.
Data governance consulting
Governance strategy, lineage and data quality from our UK IT agency.
Cloud
Cloud and AWS
AWS and cloud hosting from our UK IT agency: accounts you control, and a restore that has been tried.
Cloud development
AWS, Azure, migration and operations from our UK IT agency.
Cloud migration
Data and server migration from our UK IT agency, with recovery and a cutover you can rehearse.
AWS consulting
Amazon Web Services engineering, analysis and migration from our UK IT agency.
Azure managed services
Azure engineering, optimisation, database and application migration from our UK IT agency.
Digital transformation
Business technology consulting
IT consulting from our UK IT agency: what to build, what to leave, and a brief engineers can sign.
Digital transformation
Strategy, system upgrades and operational change from our UK IT agency.
Digital sovereignty
Data control, security and compliance in the systems we build.
Software engineering
Software development
Custom software from our UK IT agency: portals, back ends and the adapters that connect them.
Enterprise business solutions
Enterprise IT from our UK IT agency: integrations, identity and change the organisation can survive.
Emerging technology
New technology from our UK IT agency only where it earns its keep: AI, IoT, AR when the job is real.
Internet of Things
IoT software from our UK IT agency: the device, the job and the exception, not a generic dashboard.
AR app development
AR from our UK IT agency only when an overlay on a real job earns its keep.
Quality testing services
QA from our UK IT agency: tests against the scope, recorded defects, and a retest when the serious items close.
Brochure design
Brochure and campaign pages from our UK IT agency, tied to a site that can take the traffic.
Template design
Templates from our UK IT agency: CMS and product layouts editors can reuse without a developer for every caption.
Software engineering
Custom products, APIs, DevOps and QA from our UK IT agency.
Custom software development
Portals, web applications, back ends and integrations from our UK IT agency.
Project development services
Project delivery with clear timelines, reporting and a named owner.
Legacy modernisation
Re-engineering, APIs and change management for systems that still earn their keep.
DevOps services
Build automation, recovery planning and environment configuration from our UK IT agency.
API integration
API development, integration, testing and documentation from our UK IT agency.
CRM and ERP solutions
CRM and ERP implementation, integration and the custom work around them.
UI and UX design
Interface design for the web and mobile products we build.
Business analysis
Turning a business requirement into a brief our engineers can build.
Solution architecture
Architecture for systems that have to last and still be changeable.
Project management
Keeping an IT project on the timetable and the budget you agreed.
Discovery phase
A short, paid discovery to test purpose, viability and the resources the work needs.
Startups and MVPs
MVP development for startups that need a first honest product.
Marketing
Digital marketing
SEO, social, content and paid search together, tied to a product that can take the traffic.
SEO
Search engine optimisation for sites we can stand behind.
Local SEO
Local search for a place, a branch or a service area.
Social media marketing
Organic social media work on the networks your audience actually uses.
Social media advertising
Paid social campaigns with a landing page that can take the traffic.
Content marketing
Useful pages and articles tied to the product, not filler.
Search marketing
Paid search alongside the organic SEO work.
Mobile marketing
Campaigns and landing pages built for a phone first.
Solutions
Warehouse management
Custom warehouse software: locations, picks and the links that make an order leave the building.
Smart estate
Custom software for an estate: access, cameras and the people who live or work there.
SOS and lone working
Check-in and panic for people who work alone, with a desk that can act on it.
Vehicle tracking
Where the vehicle is, and the job it is on. Custom tracking with a desk that can act.
Visitor management
Who is on site, and who they came to see. Pre-register, badge and an audit the desk can show.
Time and attendance
Hours, roster and the exceptions payroll needs. Custom attendance, not a clock that only beeps.
CMMS
Computerised maintenance: assets, work orders and the parts that keep them running.
Forecourt and fuel site systems
Tills, tanks and the devices on the island. Custom software for a fuel site, not a generic shop till.
Industries
Healthcare
Booking, diaries and the records clinicians already trust, from a UK IT agency.
Retail
Catalogues, tills and the stock that has to match the shelf, from a UK IT agency.
Logistics
Tracking, warehouses and the job on the vehicle, from a UK IT agency.
Media and entertainment
Publishing, catalogues of assets and the sites that carry them, from a UK IT agency.
Real estate
Listings, access and the people who live or work there, from a UK IT agency.
Ecommerce
Catalogues, checkout and the warehouse that fulfils the order, from a UK IT agency.
Online booking
Slots, deposits and a confirmation you can stand behind, from a UK IT agency.
Social networking
Member areas and feeds a product actually needs, from a UK IT agency. Not a throwaway social theme.
Manufacturing
Plant, jobs and the parts that keep the line running, from a UK IT agency.
Education and e-learning
Courses, cohorts and the records a college can audit, from a UK IT agency.
Energy
Sites, meters and the jobs that keep them running, from a UK IT agency.
Fintech
Ledgers, payments and ops portals finance will use, from a UK IT agency.
Banking and finance
Staff portals, records and an audit trail that lasts, from a UK IT agency.
Insurance
Quotes, claims and the file the handler opens, from a UK IT agency.
Travel and hospitality
Rooms, dates and a deposit that is paid or not, from a UK IT agency.
Platforms we work with
iOS app development
Native iOS apps for iPhone and iPad from our UK IT agency. Swift, App Store release and QA in one team.
iPhone app development
Native iPhone apps from our UK IT agency: touch, notifications, camera and an App Store listing you can stand behind.
iPad app development
Native iPad apps from our UK IT agency: tablet layouts, split view and field work where a phone is too small.
Android app development
Native Android apps from our UK IT agency. Kotlin, Play Store release and QA in one team.
Kotlin app development
Kotlin for Android apps from our UK IT agency, and multiplatform only where that is the honest trade-off.
Swift development
Swift for iPhone, iPad and Apple Watch from our UK IT agency. The language, the store and the same named team.
Xamarin application development
Xamarin and .NET MAUI work from our UK IT agency: keep, wrap or migrate, named in the brief.
Ionic app development
Ionic and Capacitor apps from our UK IT agency when a web team needs a store wrapper.
Flutter app development
Flutter apps from our UK IT agency when one Dart codebase is the honest trade-off for iOS and Android.
React Native app development
React Native apps from our UK IT agency when a JavaScript team and two stores are the honest trade-off.
Apple Watch app development
Apple Watch apps from our UK IT agency: glanceable tasks with a companion iPhone app.
iBeacon and proximity
iBeacon and proximity work from our UK IT agency: ranging, indoor location and the consent that has to sit with it.
PHP web development
PHP web applications from our UK IT agency: Laravel, existing PHP estates, and the integrations around them.
ASP.NET web development
ASP.NET web applications from our UK IT agency, including the Microsoft estate you already run.
ASP.NET MVC development
ASP.NET MVC work from our UK IT agency: keep, wrap or move an MVC product you already run.
ASP.NET Core development
ASP.NET Core applications from our UK IT agency: APIs, portals and the hosting model they need.
Angular development
Angular web applications from our UK IT agency. The same stack as the products we already ship.
Node.js development
Node.js APIs and services from our UK IT agency, when JavaScript on the server is the honest fit.
CodeIgniter development
CodeIgniter work from our UK IT agency: keep, patch or migrate a PHP product you already run.
C# development
C# for web, APIs and Windows-side services from our UK IT agency.
Laravel development
Laravel applications from our UK IT agency: PHP products with queues, auth and the joins they need.
Java development
Java services and integrations from our UK IT agency, when the estate already runs on the JVM.
Front-end development
Front-end engineering from our UK IT agency: Angular, React or Vue, chosen from the brief.
React development
React web applications from our UK IT agency, when that is the stack the brief already points at.
Vue development
Vue applications from our UK IT agency, when Vue is already the stack you run or want to keep.
Express.js development
Express APIs from our UK IT agency: Node services with auth, tests and notes the next engineer can use.
CakePHP development
CakePHP work from our UK IT agency: keep, patch or migrate a PHP product you already run.
HTML5 development
HTML, CSS and accessible front-end work from our UK IT agency, including the pages that have to work without a heavy app.