DPInfo System

API & Backend Engineering

We build high-performance backend systems and APIs that power your applications. From RESTful services to event-driven microservices, our engineering team designs architectures that handle millions of requests with sub-second response times.

Discuss Your Backend
Server infrastructure

What We Build

Robust backend systems for any scale.

RESTful API Design

Clean, versioned REST APIs following OpenAPI specifications with comprehensive documentation and testing.

GraphQL Development

Flexible, efficient GraphQL APIs with schema-first design, resolvers, subscriptions, and real-time data.

Microservices Architecture

Decompose monoliths into independently deployable services with event-driven communication patterns.

Database Engineering

PostgreSQL, MongoDB, Redis — schema design, query optimization, sharding, and replication strategies.

Third-Party Integrations

Payment gateways (Stripe, Razorpay), CRMs (Salesforce, HubSpot), messaging (Twilio, SendGrid), and more.

Real-Time Systems

WebSocket servers, event streaming with Kafka, and pub/sub architectures for live data applications.

Backend engineering

Built-In Best Practices

Authentication & Authorization

JWT, OAuth2, RBAC, and multi-tenant access control systems.

Rate Limiting & Throttling

Protect your APIs from abuse with intelligent rate limiting.

Caching Strategies

Redis, CDN, and application-level caching for sub-100ms responses.

Error Handling & Logging

Structured logging, error tracking with Sentry, and health check endpoints.

API Documentation

Swagger/OpenAPI docs, Postman collections, and developer portals.

Technologies We Use

Modern backend frameworks and databases.

Node.js
Express
NestJS
Python
FastAPI
Django
Java
Spring Boot
PostgreSQL
MongoDB
Redis
Kafka
RabbitMQ
GraphQL
Prisma
Swagger

Industries We Serve

The sectors our team has shipped production software for

MarketplacesSaaSFood DeliveryHealthcare

Related Case Studies

Real projects that show this service in practice

Common Questions

Straight answers about timelines, payments, and support

Both. REST is our default for most integrations, and we use GraphQL when front-ends need flexible, nested data — the approach we used on our project management platform.

Need a Scalable Backend?

Let's architect an API that powers your entire product ecosystem.

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