Quoryx.AI

Backend technologies for dependable APIs and business logic

The backend holds your data, enforces your business rules and connects to every other system you rely on. We build it in mature, well-supported languages and frameworks so it stays secure, testable and straightforward to hand over.

How we choose

Most backend work is less about raw speed and more about correctness: validating input, handling permissions, processing payments, sending notifications and keeping data consistent when things go wrong. Established frameworks such as Laravel, Django, Rails, Spring Boot and ASP.NET Core solve these common problems out of the box, which means less custom code to maintain. Lighter options such as FastAPI, NestJS and Go suit focused services and APIs where performance or concurrency matters more.

We weigh several factors when choosing a backend: what your team can support after launch, the hosting environment, the libraries available for your domain, and any existing systems we need to integrate with. Data-science and AI-heavy work usually points to Python; enterprise environments built on Microsoft or Java often favour .NET or Spring Boot; and many business applications are delivered fastest with Laravel or Rails. We explain the trade-offs so the decision is yours.

FAQ

Backend questions

Which backend language should we use?

It depends on your team, your integrations and the type of work. We will usually recommend the option your organisation can maintain comfortably, unless there is a clear technical reason to choose something else.

Do you build APIs for mobile apps and third parties?

Yes. We design REST and GraphQL APIs with authentication, versioning, rate limiting and documentation, so mobile apps, partners and internal tools can rely on them.

Can you modernise an old backend?

Yes. We typically put tests around the existing behaviour, then replace or refactor parts step by step, keeping the system running throughout rather than attempting a risky big-bang rewrite.

How do you keep a backend secure?

We validate every input, use the framework's built-in protections, follow the OWASP Top 10, apply least-privilege access to databases and services, and keep dependencies updated. Secrets are kept out of the code and stored in the hosting platform's secret manager.

Should we build a monolith or microservices?

For most products a well-structured single application is quicker to build, cheaper to run and easier to change. We only split into separate services when there is a clear reason, such as a part of the system with very different scaling or release needs.

How do you document APIs?

We describe APIs with the OpenAPI specification, which produces browsable documentation and can generate client code. Your developers or partners get a clear reference for every endpoint, field and error.

How do you handle background jobs and scheduled tasks?

Slow or unreliable work such as sending emails, generating reports or calling third-party services goes onto a queue, so users are not kept waiting. Failed jobs are retried and logged, and scheduled tasks are monitored so a silent failure is noticed.

Do you write automated tests for the backend?

Yes. Business rules, API endpoints and integrations are covered by automated tests that run on every change, which is what allows us to release frequently without breaking existing features.

Can you add single sign-on to our application?

Yes. We commonly integrate OAuth 2.0 and OpenID Connect providers such as Microsoft Entra ID, Google Workspace and Okta, and SAML where an enterprise customer requires it.

Will the backend cope if usage grows quickly?

We design the application to be stateless, cache expensive work and push heavy tasks onto queues, so it can run on more servers when needed. We size it for your realistic traffic and measure before adding infrastructure.

Have a project in mind? Let’s talk.

Tell us what you are building. We reply within one business day with next steps — and we are happy to sign an NDA first.