Production-grade web application
Primary outcome
Our Services Backend and API Development
Backend and API development services for US and UK products that need reliable system foundations.
Zyvor builds backend systems, APIs, databases, authentication, integrations, queues, payment flows, and cloud deployment paths for SaaS, AI, web, and mobile products.
Product surface
Backend and API Development
WebAPIMobile
Useful when the product depends on clean APIs, data models, integrations, and backend workflows.
Strong fit for SaaS platforms, mobile apps, AI workflows, dashboards, and partner integrations.
Designed for teams that need backend development with reliability, maintainability, and scale in mind.
Service overview
Backend and API development carries the product decisions that users do not see but the business depends on every day.
Backend and API development is where a product's real rules live: who can read which record, what happens when a payment fails, how a third-party service is allowed to fail, and which data has to survive a retry. Zyvor builds backends for SaaS, AI, web and mobile products with those rules written down and enforced in one place, rather than scattered across screens. The work covers API design and versioning, data modelling, authentication and authorisation, background jobs and queues, webhooks, integration boundaries and observability. For SaaS products the same foundation carries multi-tenant data, subscription state and per-account permissions; for AI products it carries orchestration, provider fallbacks and cost control. The goal is a backend a team can extend without guessing what will break.
What it is
The backend becomes the center of product risk when APIs, database models, authentication, third-party integrations, background jobs, and infrastructure are not designed deliberately. Zyvor helps US and UK clients build backend systems that support real workflows, cleaner integrations, and future product growth.
Who it is for
Common backend and API needs
How Zyvor approaches it
Focused builds usually start at four weeks. Complex builds with payments, integrations, or real-time systems can run longer. Scoping happens before development starts so timelines stay realistic.
Maintainable full-stack foundation
Engineering outcome
Deployable system with monitoring
Delivery outcome
What this engagement includes
The core delivery outcomes this engagement is structured around — before the deeper build and stack detail below.
Backend application development, API design, and database implementation
Authentication, authorization, roles, permissions, and subscription workflows
Third-party integrations, webhooks, background jobs, queues, and event flows
Deployment, monitoring, logging, and documentation for maintainable operation
Delivery scope in more detail
A second layer of scope so buyers can see the product surfaces, AI paths, mobile needs, and infrastructure work this engagement can cover.
Web application development
Responsive web apps built on Next.js, React, and TypeScript
Server-side rendering, optimized bundles, and production-grade error handling
Progressive web capabilities and offline support
Backend and API development
Node.js backend with PostgreSQL and Supabase
RESTful API design, documentation, and versioning
Authentication, authorization, and multi-tenancy
Payment and integration systems
Stripe integration, subscription billing, and usage-based pricing
Third-party API integrations and webhook architecture
CRM, analytics, and email-service connections
Real-time features
WebSocket implementations and live data updates
Collaborative interfaces and real-time notifications
Event-driven architecture and message queuing
Common backend and API needs
Best backend fit. Built for US and UK founders, product leaders, and teams that need a Digital Product Agency partner — not vague outsourcing.
Founders & product leaders
A product needs secure APIs for web, mobile, or partner integrations.
Engineering teams
A SaaS platform needs stronger backend workflows, roles, permissions, and billing logic.
Scaling SaaS buyers
An AI product needs data pipelines, queues, orchestration, and observability.
Operators & delivery owners
Existing backend code is slowing delivery and needs cleaner structure before scaling.
A clear build path from scope to production
01
Product and workflow scope
Clarify the users, jobs-to-be-done, product surfaces, data objects, and workflows that need to be built or improved before implementation starts.
02
Frontend, backend, and API implementation
Build the core product across UI, backend services, API contracts, database behavior, integrations, authentication, permissions, and deployment needs.
03
Production readiness and handoff
Prepare the product for real usage with documentation, deployment support, observability, performance checks, and clear next-iteration priorities.
Backend and API Development stack coverage
Tools and platforms commonly used when this service ships real product work — chosen around the product stage, not a fixed checklist.
Next.js
React
Node.js
Express.js
TypeScript
PostgreSQL
Supabase
AWS
Docker
Redis
Stripe
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View detailSelected work
Relevant delivery proof for this service — real products, not generic consulting claims.
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View detailFast delivery, project management, and app development quality
Zyvor has been an excellent development partner. They deliver quickly, manage projects well, and the quality of work has been consistently strong.
Ellina Vasilevsky
Operations Director, Limay Media
Clear communication, strong process, and on-target delivery
They kept us in the loop from design through delivery. Processes were clear, and the final product was exactly what we needed.
Josh
CTO, SoftZee
Explore more
Continue into the next Strategy, Design, Technology, or Growth path.
Buyers comparing backend and api development can move into related services, Selected Work, insights, and contact without leaving the Digital Product Agency journey.
Agency model
Digital Product Agency model: Strategy, Design, Technology, and Growth.
Strategy
Product strategy, discovery, MVP roadmap, and go-to-market before expensive builds.
Design
Product design, design systems, web/mobile UX, and conversion-focused interfaces.
Technology
Product engineering for SaaS, AI, web, and mobile — architecture as support, not the brand.
Agency pillars that balance Technology
View all servicesProduct strategy
Clarify ICP, MVP boundaries, and roadmap so design and engineering build the right product.
View detailProduct discovery
Validate B2B workflows and buyer friction before you hard-code assumptions.
View detailProduct design & UI/UX
Design SaaS experiences that make complex workflows clear, trustworthy, and usable.
View detailSEO & growth for SaaS
Grow demand with SEO and growth work tied to offers you can actually deliver.
View detailTechnology paths buyers compare when it is time to build
SaaS, AI, web, mobile, backend APIs, and DevOps — inside the same Digital Product Agency model as Strategy, Design, and Growth.
SaaS development
Frontend, backend, APIs, databases, subscriptions, dashboards, integrations, and deployment.
View detailAI software development
AI-enabled products, automation, LLM workflows, orchestration, and production readiness.
View detailWeb application development
Portals, dashboards, admin tools, workflow platforms, and custom web applications.
View detailMobile app development
iOS and Android delivery connected to shared APIs, auth, notifications, and product data.
View detailBackend and API development
Secure APIs, roles, permissions, integrations, queues, webhooks, payments, and data foundations.
View detailDevOps & infrastructure
CI/CD, cloud ops, monitoring, and production support connected to product delivery.
View detailContinue the website journey
Move into proof, insights, or a conversation when the challenge is clear enough to discuss.
Services
Compare Strategy, Design, Technology, and Growth paths.
View detailSelected work
Flagship projects across SaaS, marketplaces, web, and mobile.
View detailCase studies
How strategy, design, and engineering connect to outcomes.
View detailInsights
Practical guidance for scaling product and engineering teams.
View detailReviews
Named proof around delivery and partnership quality.
View detailContact
Bring the product challenge into a direct conversation.
View detailQuestions founders and engineering leaders usually ask
Can you take over an existing API?
Yes. The usual starting point is a review of the current contracts, data model and deployment path, followed by a plan that improves the weak areas without freezing feature work while it happens.
How do you handle third-party integrations?
Every external dependency gets an explicit failure path: timeouts, retries, idempotency, webhook verification and monitoring. That is the difference between an integration that works in a demo and one that survives production traffic.
Do you document the API for other teams?
Yes. Contracts, authentication, error shapes and versioning are documented alongside the implementation, so frontend, mobile and partner teams can build against them without asking what each endpoint expects.
Can the backend support a mobile app as well as the web product?
Yes. One API serving both surfaces is usually the right model: the app and the web client share authentication, business rules and data access instead of drifting into two separate implementations.
How do you approach database design?
The data model is designed around the product's access patterns: what is read together, what changes together, and which records must be separated by tenant. That matters more for long-term performance than any single query optimisation.
Bring the version of this challenge your business is facing now.
Zyvor is a digital product agency working with US and UK teams across strategy, design, technology and growth. Bring the product problem you are facing now, and we will help you find the clearest next step.