Custom-Coded, Performance-First
Every Cardiff site is hand-coded — no themes — so it loads fast, ranks well and stays maintainable as the business grows.
Bespoke websites, ecommerce, app development and SEO campaigns for Cardiff and South Wales — supporting professional firms, retailers, hospitality and growing service businesses.
Every Cardiff site is hand-coded — no themes — so it loads fast, ranks well and stays maintainable as the business grows.
From the City Centre and Cardiff Bay to Canton and Roath, sites are designed for mobile-first audiences and tested on real UK networks.
Welsh-language content support available on request — useful for public-sector, tourism and customer-facing brands across Wales.
Local SEO for Cardiff and South Wales 'near me' searches plus national campaigns for businesses serving the wider UK.
Database & API Development in Cardiff
Cardiff is Wales's most competitive commercial market, where technical SEO decides regional visibility. JW Digital delivers database & api development for Cardiff and South Glamorgan businesses — data platform work shaped around the local market, not a generic template.
Cardiff is the Welsh capital and largest economy, with major financial-services, media and digital sectors. It's a market where fragile data plumbing creates hidden cost, risk and slow decisions.
We build sites that compete for Wales's most contested search terms on speed and structure. Our data platform work is built to perform in exactly this kind of Wales market.
We also support database & api development clients across Wales — including Newport, Swansea, Bristol, Barry and Pontypridd.
Scalable, secure back-end systems for Cardiff businesses
Connect apps and platforms effortlessly for Cardiff businesses
We integrate third-party APIs into your website or app to streamline workflows, automate processes, and enhance user experience — from payment gateways to CRM systems.
Suitable for: Businesses integrating external services like Stripe, Google, or CRM tools
Proactive monitoring for performance and uptime for Cardiff businesses
Ensure your APIs and databases run at peak performance. JW Digital provides real-time monitoring, testing, alerting, and optimisation for uptime and security.
Suitable for: Businesses running mission-critical web apps or APIs
Continuous optimisation and support for your databases for Cardiff businesses
Our team maintains, audits, and optimises your databases to keep performance high and downtime low. Perfect for growing businesses with data-heavy systems.
Suitable for: Any business relying on database-driven applications
Schema-first, strongly-typed GraphQL APIs for multi-client products for Cardiff businesses
Production GraphQL API development: schema-first design, batched resolvers over a sound data model, resolver-level auth, and query depth/cost safeguards — for apps, headless front ends and products serving many client types.
Suitable for: Products with multiple clients or REST endpoint sprawl
MongoDB & document stores modelled for access patterns for Cardiff businesses
NoSQL data layers (MongoDB, document, key-value, search) modelled around real read/write patterns — with the indexing, consistency choices and sharding strategy that decide whether NoSQL is fast or falls over. The NoSQL counterpart to relational database design.
Suitable for: Products with flexible schemas, high write throughput or search
WebSocket & SSE APIs for live data, scaled properly for Cardiff businesses
Client-facing realtime APIs over WebSocket and Server-Sent Events — live dashboards, presence, feeds and notifications — with authentication, reconnection, fan-out scaling and backpressure. Distinct from REST APIs and internal event-driven systems.
Suitable for: Products needing live updates, presence, tracking or instant notifications
FAQs
Common questions about database & api development for businesses in Cardiff.
Yes — every week. CRMs (HubSpot, Salesforce, Pipedrive), payments (Stripe, GoCardless), accounting (Xero, QuickBooks), email and AI APIs. We handle auth, retries, error handling and rate limiting.
PostgreSQL is our default — reliable, scales well and handles JSON queries cleanly. MySQL for legacy projects, MongoDB for document-shaped data, Redis for caching and queues. We pick based on data shape, not fashion.
Yes — in Node.js (Express, NestJS) or via Next.js API routes. Includes auth, versioning, rate limiting, request validation and OpenAPI docs so other developers can integrate without guessing.
HTTPS everywhere, short-lived auth tokens, parameterised queries (no SQL injection), rate limiting and access logs. For GDPR we minimise data collection, encrypt sensitive fields, and build export/deletion flows.
Yes — every backend is designed with horizontal scaling in mind: stateless API servers behind a load balancer, queue-based background jobs, read replicas for heavy reads, and CDN caching.