Backend Development & API Engineering for Web Applications

DreamDev provides backend development for web applications, digital products, and business systems. We work on server-side functionality, custom APIs, and integrations that connect applications with the services and data they rely on.

Our focus includes Node.js and TypeScript development, API engineering, and extending existing applications. We can work alongside your frontend team, contribute to an established codebase, or take on a defined backend development project.

Discuss Your Project

Node.js Development Services

When an application needs new functionality, the work often goes beyond the interface. It may require new business logic, data processing, connections to external services, or changes to the way different parts of a product communicate.

DreamDev provides Node.js development for teams building new features or extending existing web applications. We work with the requirements and architecture of each project rather than applying the same technical setup to every product.

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Of developers surveyed used TypeScript, a language for building maintainable backend applications.

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API Development & Integration

APIs allow different applications and services to exchange information. When an API needs to support a new product feature or connect systems that were built separately, the implementation must account for data structures, authentication, error handling, and the way each system behaves.

DreamDev develops and extends API functionality to support these connections.

Custom API Development

We implement API functionality around your application’s requirements, including endpoints, data structures, validation, and the expected behavior of requests and responses.

Third-Party API Integration

We connect applications with external services and business platforms. Depending on the project, this may involve authentication, data mapping, field validation, and handling unsuccessful requests.

Webhooks & Data Synchronization

Where supported by the connected systems, webhooks can trigger updates and actions between applications. We account for repeated events, incomplete data, and failed requests when defining the integration logic.

Connecting Websites and Business Systems

Backend development often works alongside a website, CRM, or commerce platform. For example, our HubSpot integration services cover custom connections between HubSpot, websites, e-commerce platforms, and other business systems.

Our AI-powered lead qualification case study provides an example of connecting WordPress, HubSpot, REST APIs, external company data, and an AI-assisted workflow.

Backend Development for Web Applications

Existing web applications often need new backend functionality as their requirements change. A new interface may depend on additional data, a feature may require server-side processing, or a product may need to connect with another service. We help teams extend applications, develop backend functionality, and integrate services without assuming that the entire system needs to be rebuilt.

Custom Backend Development

Develop custom backend functionality around your product requirements, business rules, and application workflows. This can include server-side processing, data management, user permissions, and features that support the way your application operates.

Node.js and TypeScript Development

Build and extend backend services using Node.js and TypeScript. We implement server-side application logic, organize code around the product's requirements, and develop functionality that can be maintained as the application evolves.

API Development and Integration

Develop APIs that connect frontend applications, backend services, and external platforms. Depending on the project, this may involve creating REST APIs, extending existing endpoints, defining data exchange formats, or integrating third-party services.

Backend for React.js and Vue.js Applications

Frontend functionality often depends on APIs and server-side logic. We work alongside frontend developers to define API contracts, implement data processing, and deliver the backend functionality required by React.js and Vue.js applications. For projects that also need frontend development, see our React.js and Vue.js development services.

Third-Party and Platform Integrations

Connect web applications with CRM systems, content management platforms, e-commerce services, and external APIs. We implement integrations based on the available interfaces, data requirements, and existing application architecture. For projects built around WordPress, our custom WordPress development services cover complex functionality, custom integrations, and platform extensions. We also develop Headless WordPress solutions where separating the CMS from the frontend makes sense for the product.

Backend Modernization and Extension

When an existing backend becomes difficult to maintain or extend, we assess the codebase and identify practical improvements. Depending on the application, this may involve refactoring components, extending APIs, resolving integration issues, or introducing new functionality while preserving working parts of the system.

Node.js, TypeScript & API Technologies

The technology stack should fit the application rather than dictate its architecture.

For projects that suit this approach, our backend development focus includes:

Node.js

for server-side JavaScript development.

TypeScript

for typed application logic and clearer interfaces between components.

REST APIs

for communication between applications and services.

Webhooks

for event-driven integrations where supported.

How We Work

We start by understanding the requested functionality, the existing application, and the systems involved. This helps define the work before implementation begins.

1. Requirements and technical review

We review the current architecture, feature requirements, dependencies, and integration constraints.

2. Scope and implementation plan

We agree on the deliverables, API requirements, acceptance criteria, and responsibilities within the project.

3. Development and testing

We implement the agreed functionality and validate it against the requirements. Depending on the scope, this may include API tests, integration tests, data validation, and error-handling scenarios.

4. Release and handover

We support the agreed deployment and handover process, with documentation and continued development where required.

We work with digital agencies that need additional development capacity and product teams that need to extend an existing application.

The engagement can cover a defined backend feature, an API integration, or a broader set of development tasks. We align the scope and communication with your existing workflow and coordinate with other developers involved in the project.

Agencies looking for ongoing WordPress delivery support can also explore our WordPress development support for agencies.

Frequently Asked Questions

What do Node.js development services include?

Node.js development can include server-side application logic, API development, integrations, data processing, and new functionality for existing web applications. The precise scope depends on your requirements and current architecture.

Can you develop an API for an existing application?

Yes. We can assess the application, the systems that need to communicate, and the available API documentation before defining the implementation scope.

Can you extend an existing backend without rebuilding the application?

Yes, when the current architecture and codebase support the required changes. We review the relevant components first and define an appropriate scope for extending the application.

Can you work with our existing frontend team?

Yes. Backend development can be coordinated with your in-house or external frontend developers through agreed API contracts, requirements, and acceptance criteria.

Can you connect a backend with WordPress or HubSpot?

Integration feasibility depends on the available APIs, permissions, and data structures. DreamDev also provides custom WordPress development and HubSpot integration services for projects that involve these platforms.

How do we get started?

Share a brief description of your application, the functionality you need, and the technologies currently in use. We can review the requirements and discuss the scope of the backend work.