Native, cross-platform or a CMS, chosen from the brief.
IT services
Tell us the outcome. We choose the stack from the brief, then design, build and look after the product with one UK IT team.
How we work
Web, mobile and commerce from one team
SJ Technologies provides custom IT services for startups, SMEs and enterprises. Build covers mobile, web, cross-platform and CMS work. Commerce covers catalogues, Magento, Shopify and WordPress. Engineering, AI, cloud and marketing sit around the product, not as a separate pitch.
You engage us to deliver a project: a named IT lead, designers, developers and QA, against a written scope. Source and environments remain yours.
What you can hold us to
The stack is a decision in the brief, not a package we sell first. Native, one codebase or a CMS, only where that is the honest trade-off. Checkout, payments and warehouse links in the same commerce job. Support after launch, if you want that retained.
Catalogues, checkout, payments and the platforms that have to last.
Custom products, APIs, DevOps and QA in one UK IT team.
AI, cloud and marketing where they earn their keep.
Services
Build
Web and mobile products. Native, cross-platform or a CMS, chosen from the brief.
Mobile development
Native, cross-platform or PWA mobile apps from our UK IT agency. We choose the stack from the brief.
Read moreWeb development
Customer and staff web applications from our UK IT agency. We choose the tech stack from the requirement.
Read moreCross-platform development
Cross-platform app development, consulting, migration, design, QA and support from our UK IT agency.
Read moreCMS-based web development
CMS implementation, integration and support from our UK IT agency.
Read moreServices
Commerce
Catalogues, checkout, payments and the platforms that have to last.
Ecommerce solutions
SJ Technologies is a UK IT agency offering ecommerce solutions for online retail and trade.
Read moreMagento development
Custom Magento for catalogues that have to last, from a UK IT agency.
Read moreShopify development
Shopify stores fitted to how you actually sell, from a UK IT agency.
Read moreWordPress development
WordPress for publishing, not a throwaway theme, from a UK IT agency.
Read moreServices
More services
Engineering, AI, cloud and marketing around the product, not as a separate pitch.
Software engineering
Custom products, APIs, DevOps and QA from our UK IT agency.
Read moreArtificial intelligence
AI services from our UK IT agency: assistants, classification and automation where they earn their keep.
Read moreCloud development
AWS, Azure, migration and operations from our UK IT agency.
Read moreDigital marketing
SEO, social, content and paid search together, tied to a product that can take the traffic.
Read moreFull catalogue
Platforms and specialist pages
Individual platform and specialist pages remain for the stacks we work with when that is the right fit.
Ecommerce
Shopping cart development
Custom carts from our UK IT agency: line items, discounts, tax and a checkout people finish.
ExplorePayment gateway integration
Payment gateway work from our UK IT agency: SCA, webhooks and a paid-or-not status you can audit.
ExploreB2B ecommerce
Trade ecommerce from our UK IT agency: accounts, price lists, quotes and orders that match how you already sell.
ExploreB2C ecommerce
Consumer ecommerce from our UK IT agency: catalogue, guest or account checkout, and peak trading you can survive.
ExploreOpen source and commerce platforms
AI and data
Data and analytics
Data and analytics from our UK IT agency: measurements you can use, from the data you actually have.
ExploreAI consulting
AI strategy, integration and support from our UK IT agency.
ExploreData science
Feedback analysis, metrics and task automation from our UK IT agency.
ExploreDatabase creation and management
Database design, migration and operations from our UK IT agency.
ExploreAI in the software life cycle
AI support for planning, development, testing and release from our UK IT agency.
ExploreData governance consulting
Governance strategy, lineage and data quality from our UK IT agency.
ExploreCloud
Cloud and AWS
AWS and cloud hosting from our UK IT agency: accounts you control, and a restore that has been tried.
ExploreCloud migration
Data and server migration from our UK IT agency, with recovery and a cutover you can rehearse.
ExploreAWS consulting
Amazon Web Services engineering, analysis and migration from our UK IT agency.
ExploreAzure managed services
Azure engineering, optimisation, database and application migration from our UK IT agency.
ExploreCybersecurity
IT security management
Security reviews, hardening and a working culture of care from our UK IT agency.
ExploreSecurity operations
Incident response, monitoring and assessment from our UK IT agency.
ExplorePenetration testing
Penetration testing for applications, APIs and networks from our UK IT agency.
ExploreDigital transformation
Business technology consulting
IT consulting from our UK IT agency: what to build, what to leave, and a brief engineers can sign.
ExploreDigital transformation
Strategy, system upgrades and operational change from our UK IT agency.
ExploreDigital sovereignty
Data control, security and compliance in the systems we build.
ExploreSoftware engineering
Software development
Custom software from our UK IT agency: portals, back ends and the adapters that connect them.
ExploreEnterprise business solutions
Enterprise IT from our UK IT agency: integrations, identity and change the organisation can survive.
ExploreEmerging technology
New technology from our UK IT agency only where it earns its keep: AI, IoT, AR when the job is real.
ExploreInternet of Things
IoT software from our UK IT agency: the device, the job and the exception, not a generic dashboard.
ExploreAR app development
AR from our UK IT agency only when an overlay on a real job earns its keep.
ExploreQuality testing services
QA from our UK IT agency: tests against the scope, recorded defects, and a retest when the serious items close.
ExploreBrochure design
Brochure and campaign pages from our UK IT agency, tied to a site that can take the traffic.
ExploreTemplate design
Templates from our UK IT agency: CMS and product layouts editors can reuse without a developer for every caption.
ExploreCustom software development
Portals, web applications, back ends and integrations from our UK IT agency.
ExploreProject development services
Project delivery with clear timelines, reporting and a named owner.
ExploreLegacy modernisation
Re-engineering, APIs and change management for systems that still earn their keep.
ExploreDevOps services
Build automation, recovery planning and environment configuration from our UK IT agency.
ExploreAPI integration
API development, integration, testing and documentation from our UK IT agency.
ExploreCRM and ERP solutions
CRM and ERP implementation, integration and the custom work around them.
ExploreUI and UX design
Interface design for the web and mobile products we build.
ExploreBusiness analysis
Turning a business requirement into a brief our engineers can build.
ExploreSolution architecture
Architecture for systems that have to last and still be changeable.
ExploreProject management
Keeping an IT project on the timetable and the budget you agreed.
ExploreDiscovery phase
A short, paid discovery to test purpose, viability and the resources the work needs.
ExploreStartups and MVPs
MVP development for startups that need a first honest product.
ExploreMarketing
SEO
Search engine optimisation for sites we can stand behind.
ExploreLocal SEO
Local search for a place, a branch or a service area.
ExploreSocial media marketing
Organic social media work on the networks your audience actually uses.
ExploreSocial media advertising
Paid social campaigns with a landing page that can take the traffic.
ExploreContent marketing
Useful pages and articles tied to the product, not filler.
ExploreSearch marketing
Paid search alongside the organic SEO work.
ExploreMobile marketing
Campaigns and landing pages built for a phone first.
ExplorePlatforms 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.
ExploreiPhone app development
Native iPhone apps from our UK IT agency: touch, notifications, camera and an App Store listing you can stand behind.
ExploreiPad app development
Native iPad apps from our UK IT agency: tablet layouts, split view and field work where a phone is too small.
ExploreAndroid app development
Native Android apps from our UK IT agency. Kotlin, Play Store release and QA in one team.
ExploreKotlin app development
Kotlin for Android apps from our UK IT agency, and multiplatform only where that is the honest trade-off.
ExploreSwift development
Swift for iPhone, iPad and Apple Watch from our UK IT agency. The language, the store and the same named team.
ExploreXamarin application development
Xamarin and .NET MAUI work from our UK IT agency: keep, wrap or migrate, named in the brief.
ExploreIonic app development
Ionic and Capacitor apps from our UK IT agency when a web team needs a store wrapper.
ExploreFlutter app development
Flutter apps from our UK IT agency when one Dart codebase is the honest trade-off for iOS and Android.
ExploreReact Native app development
React Native apps from our UK IT agency when a JavaScript team and two stores are the honest trade-off.
ExploreApple Watch app development
Apple Watch apps from our UK IT agency: glanceable tasks with a companion iPhone app.
ExploreiBeacon and proximity
iBeacon and proximity work from our UK IT agency: ranging, indoor location and the consent that has to sit with it.
ExplorePHP web development
PHP web applications from our UK IT agency: Laravel, existing PHP estates, and the integrations around them.
ExploreASP.NET web development
ASP.NET web applications from our UK IT agency, including the Microsoft estate you already run.
ExploreASP.NET MVC development
ASP.NET MVC work from our UK IT agency: keep, wrap or move an MVC product you already run.
ExploreASP.NET Core development
ASP.NET Core applications from our UK IT agency: APIs, portals and the hosting model they need.
ExploreAngular development
Angular web applications from our UK IT agency. The same stack as the products we already ship.
ExploreNode.js development
Node.js APIs and services from our UK IT agency, when JavaScript on the server is the honest fit.
ExploreCodeIgniter development
CodeIgniter work from our UK IT agency: keep, patch or migrate a PHP product you already run.
ExploreC# development
C# for web, APIs and Windows-side services from our UK IT agency.
ExploreLaravel development
Laravel applications from our UK IT agency: PHP products with queues, auth and the joins they need.
ExploreJava development
Java services and integrations from our UK IT agency, when the estate already runs on the JVM.
ExploreFront-end development
Front-end engineering from our UK IT agency: Angular, React or Vue, chosen from the brief.
ExploreReact development
React web applications from our UK IT agency, when that is the stack the brief already points at.
ExploreVue development
Vue applications from our UK IT agency, when Vue is already the stack you run or want to keep.
ExploreExpress.js development
Express APIs from our UK IT agency: Node services with auth, tests and notes the next engineer can use.
ExploreCakePHP development
CakePHP work from our UK IT agency: keep, patch or migrate a PHP product you already run.
ExploreHTML5 development
HTML, CSS and accessible front-end work from our UK IT agency, including the pages that have to work without a heavy app.
ExploreNext step
Talk to the agency
Use the contact form for web, mobile or software enquiries. We reply within two working days.