API & Backend Development

Custom API & Backend Development Services for Seamless Integration

We build robust APIs and backend systems that seamlessly connect your applications, databases, and third-party services. From REST and GraphQL APIs to complex microservices architectures, our team delivers secure, scalable solutions with comprehensive documentation. Fixed pricing with transparent timelines, 12-month support included, and complete source code ownership.

Starting from$3,500
50+ APIs Delivered
99.9% Uptime Achieved
Zero-Trust Security
12 Months Support Included
Custom API & Backend Development Services for Seamless Integration
API & Backend Development

API & Backend Development Services

Starting from$3,500
Duration8-20 weeks (depending on complexity)
Rating
4.9(38)

API & Backend Development Services

API and backend development services encompass the complete process of designing, building, and deploying server-side systems that power applications and enable data exchange between software systems. This includes creating RESTful APIs, GraphQL endpoints, real-time WebSocket connections, and microservices architectures. Professional API development transforms disconnected systems into unified platforms, enabling businesses to automate workflows, integrate third-party services, and build scalable digital products. These services cover requirements analysis, architecture design, security implementation, performance optimization, comprehensive documentation, and ongoing maintenance.

Key Features

  • RESTful and GraphQL API design following industry standards
  • Microservices architecture for enterprise scalability
  • Third-party system integration (CRM, ERP, payment gateways)
  • Real-time data synchronization with WebSockets and webhooks
  • Zero-trust security with OAuth 2.0, JWT, and encryption
  • Comprehensive API documentation with OpenAPI specifications
  • Performance optimization with caching and load balancing
  • 24/7 monitoring and observability infrastructure
API Protocols

API Protocol Comparison

Different protocols serve different needs. We help you choose the right one for your project.

REST

The most widely adopted API architecture using HTTP methods and JSON.

Kelebihan

  • Universal compatibility
  • Easy to understand
  • Great tooling
  • Cacheable

Pertimbangan

  • Over-fetching data
  • Multiple requests needed
  • No real-time support

Best For

Public APIs, CRUD operations, simple integrations, mobile apps

GraphQL

Query language that lets clients request exactly the data they need.

Kelebihan

  • Precise data fetching
  • Single endpoint
  • Strong typing
  • Self-documenting

Pertimbangan

  • Steeper learning curve
  • Complex caching
  • Potential over-engineering

Best For

Complex data relationships, mobile apps, dashboards, data-heavy frontends

gRPC

High-performance RPC framework using Protocol Buffers for serialization.

Kelebihan

  • Fastest performance
  • Bi-directional streaming
  • Strong contracts
  • Code generation

Pertimbangan

  • Browser support limited
  • Requires Protobuf
  • Harder to debug

Best For

Microservices, real-time systems, internal APIs, IoT

WebSocket

Full-duplex communication for real-time, bidirectional data exchange.

Kelebihan

  • Real-time updates
  • Low latency
  • Persistent connection
  • Push notifications

Pertimbangan

  • Stateful connections
  • Scaling complexity
  • No built-in recovery

Best For

Chat apps, live dashboards, gaming, collaborative tools

Tidak yakin protokol mana yang tepat? Konsultasi gratis dengan tim kami!

Why Does Your Business Need Professional API Development?

Disconnected systems, security vulnerabilities, and integration failures cost businesses millions annually. Professional API development eliminates these risks and unlocks operational efficiency.

Integration Complexity Causing Project Failures

Most integration projects fail due to complexity, not technology. Point-to-point connections create spaghetti architectures that become unmaintainable. Without strategic planning and proper architecture, integration projects spiral into costly disasters that delay business initiatives.

70% of integration projects fail due to complexity and poor planning

MuleSoft Connectivity Benchmark Report 2024

Security Vulnerabilities Exposing Your Data

API attacks have surged dramatically as businesses expose more endpoints. Organizations face hundreds of attacks weekly, with financial and healthcare sectors most targeted. Without proper security implementation, APIs become the weakest link in your security posture.

API attacks increased 333% year-over-year, averaging 850 attacks per organization weekly

Salt Security State of API Security Report 2024

Poor Documentation Blocking Development

The most common complaint about APIs is inadequate documentation. Developers waste hours deciphering poorly documented endpoints, and unannounced API changes break integrations. This documentation debt slows development and increases maintenance costs.

65% of developers cite poor documentation as their primary API integration challenge

Postman State of the API Report 2024

Systems That Cannot Scale with Growth

APIs designed for small-scale usage break down as traffic increases. Rate limiting triggers customer frustration, database queries slow to a crawl, and authentication systems fail under load. Without scalable architecture from the start, growth becomes a liability.

40% of businesses report scalability issues with existing API infrastructure

Gartner API Management Survey

Monitoring Blindspots Causing Outages

When APIs fail, applications fail. Without proper monitoring and observability, teams discover issues from angry customers, not dashboards. Performance degradation goes unnoticed until it becomes a full outage, damaging reputation and revenue.

Average API downtime costs enterprises $5,600 per minute

Gartner IT Downtime Cost Study

Post-Launch Abandonment by Developers

Many development agencies disappear after delivery, leaving you with undocumented code and no support. When third-party APIs change, integrations break, and you're left scrambling. Maintenance represents 50% of software lifecycle costs—often as a surprise.

50% of software lifecycle costs are maintenance-related

McKinsey Software Development Report

What You Get from Our API & Backend Development Services

Comprehensive backend solutions with fixed pricing, security-first architecture, and 12 months of included support

REST & GraphQL API Development

We design and build APIs that developers love to use. Whether you need REST endpoints for traditional integrations or GraphQL for flexible queries, our APIs follow industry standards with clean architecture, consistent patterns, and comprehensive documentation.

  • RESTful API design following OpenAPI 3.0 specification
  • GraphQL implementation with Apollo Server
  • Automatic API documentation generation
  • Versioning strategy for backwards compatibility

System Integration Services

Connect your applications with any third-party system. We integrate CRMs, ERPs, payment gateways, shipping providers, accounting software, and custom platforms. Our strategic approach creates unified data flows, not brittle point-to-point connections.

  • CRM integration (Salesforce, HubSpot, Zoho)
  • Payment gateways (Stripe, PayPal, Midtrans, Xendit)
  • ERP systems (SAP, Odoo, custom solutions)
  • Real-time webhook and event-driven integration

Microservices Architecture

Build for scale from day one with microservices architecture. We design systems where each service handles one responsibility, can scale independently, and can be updated without affecting others. Perfect for growing businesses that need flexibility.

  • Domain-driven design for service boundaries
  • Container orchestration with Docker and Kubernetes
  • Service mesh for inter-service communication
  • Independent scaling and deployment per service

Real-Time Data Synchronization

Enable instant data updates across your systems with real-time synchronization. We implement WebSocket connections, webhook systems, and event streaming for applications that need immediate data consistency—from chat applications to live dashboards.

  • WebSocket implementation for live updates
  • Webhook systems for event-driven workflows
  • Message queues for reliable async processing
  • Event streaming with Kafka or Redis Streams

API Security & Authentication

Security is built into every layer of our APIs. We implement zero-trust architecture, industry-standard authentication, data encryption, and regular security audits. Our APIs are designed to withstand attacks while maintaining performance.

  • OAuth 2.0 and JWT token authentication
  • Multi-factor authentication support
  • AES-256 encryption for data at rest and in transit
  • Penetration testing and security audits included

Monitoring & Observability

Never be surprised by API issues again. We set up comprehensive monitoring with real-time dashboards, alerting systems, and logging infrastructure. Know about problems before your users do, and have the data to fix them quickly.

  • Real-time performance dashboards
  • Automated alerting for anomalies
  • Distributed tracing for debugging
  • Log aggregation and analysis

Technologies We Master

Modern, proven technology stack for building robust, scalable API infrastructure

Backend Frameworks

  • Node.js
  • Express.js
  • NestJS
  • Python FastAPI
  • Go

API Protocols

  • REST
  • GraphQL
  • gRPC
  • WebSocket
  • SOAP

Databases

  • PostgreSQL
  • MongoDB
  • Redis
  • Elasticsearch
  • MySQL

Cloud & DevOps

  • AWS
  • Google Cloud
  • Docker
  • Kubernetes
  • GitHub Actions
Total: 8-20 weeks (depending on complexity)

Our API Development Process

A structured methodology delivering secure, well-documented APIs on time and within budget

1
1-2 weeks

Discovery & Architecture

We analyze your integration requirements, existing systems, and business objectives. This phase defines API specifications, data models, security requirements, and integration architecture. We create a strategic plan, not just technical documentation.

Deliverables:
  • Integration requirements document
  • API specification draft (OpenAPI format)
  • Data model and entity relationships
  • Security and compliance requirements
  • Fixed timeline and budget agreement
2
1-2 weeks

API Design & Documentation

Before writing code, we design your API interface with developer experience in mind. You'll review endpoint designs, request/response formats, and authentication flows. Documentation is created alongside design, ensuring accuracy.

Deliverables:
  • Complete OpenAPI 3.0 specification
  • API documentation draft
  • Authentication flow diagrams
  • Error handling standards
  • Versioning strategy document
3
4-12 weeks

Backend Development

Our developers build your API and backend systems using agile methodology with regular demos. You'll have access to a staging environment to test endpoints as they're completed. We implement business logic, database operations, and external integrations.

Deliverables:
  • Core API endpoints implementation
  • Database schema and migrations
  • Business logic and validation
  • Third-party service integrations
  • Staging environment for testing
4
1-2 weeks

Security Implementation

Security is not an afterthought. We implement authentication, authorization, encryption, and protection against common vulnerabilities. Penetration testing identifies and addresses potential weaknesses before they become problems.

Deliverables:
  • Authentication system implementation
  • Authorization and access control
  • Data encryption configuration
  • Security audit and penetration testing
  • Vulnerability remediation report
5
1-2 weeks

Testing & Optimization

Comprehensive testing ensures your API performs under real-world conditions. We conduct functional testing, load testing, and integration testing. Performance optimization addresses bottlenecks before launch.

Deliverables:
  • Unit and integration test suites
  • Load testing results and analysis
  • Performance optimization report
  • API response time benchmarks
  • Edge case and error handling verification
6
12 months (included)

Deployment & Support

We deploy your API to production infrastructure with comprehensive monitoring. Your team receives documentation, Postman collections, and training. Our 12-month support includes bug fixes, security updates, and assistance when third-party APIs change.

Deliverables:
  • Production deployment with CI/CD
  • Monitoring and alerting setup
  • Complete API documentation
  • Postman collection and SDK samples
  • 12-month support and maintenance

Trusted by Businesses Across Industries

50+
APIs Delivered
99.9%
Uptime Achieved
10M+
API Calls Daily
98%
On-Time Delivery

Dipercaya oleh perusahaan terkemuka

SaaS Companies
E-Commerce Platforms
Manufacturing
Healthcare Tech
Financial Services
Logistics Companies

APIs & Integrations We've Built

Real results from our API and backend development projects

Manufacturing & Distribution

Multi-System Business Integration

Manufacturing Distribution Company

Tantangan

A distribution company with 8 regional warehouses operated with disconnected systems: separate CRM, inventory management, accounting software, and e-commerce platform. Staff manually transferred data between systems, causing delays, errors, and lost orders.

Solusi

Built a central integration hub using Node.js and REST APIs connecting all systems. Implemented real-time inventory sync across warehouses, automated order routing based on stock levels and location, and unified customer data between CRM and e-commerce.

Hasil

-85%
Data Entry Time
-92%
Order Errors
+60%
Fulfillment Speed
$240K
Annual Savings

Teknologi

Node.js
Express
PostgreSQL
Redis
AWS Lambda

Before, our team spent half their day copying data between systems. Now everything syncs automatically. We've eliminated order errors and can fulfill faster than ever. The integration paid for itself in the first quarter.

Robert Chen - Operations Director

Software & Technology

Real-Time Analytics API Platform

SaaS Product Analytics Company

Tantangan

A product analytics startup needed to process millions of events daily from customer applications, provide real-time dashboards, and deliver insights through APIs. Their initial architecture couldn't handle the scale, causing data delays and customer complaints.

Solusi

Designed event-driven architecture with GraphQL API for flexible queries. Implemented Kafka for event streaming, Redis for real-time aggregations, and PostgreSQL for historical analysis. Built rate limiting and multi-tenant isolation for enterprise customers.

Hasil

10M+/day
Events Processed
<100ms
Query Latency
99.99%
Uptime
+150%
Customer Growth

Teknologi

GraphQL
Apollo Server
Kafka
Redis
PostgreSQL

The new architecture handles 10x our previous load without breaking a sweat. Our enterprise customers are impressed by the speed, and we haven't had a single outage since launch. The team's expertise in event-driven systems was exactly what we needed.

Jennifer Martinez - CTO

E-Commerce & Retail

Unified Payment Gateway Integration

Multi-Channel Retail Platform

Tantangan

An e-commerce platform expanding to Southeast Asia needed to support multiple payment gateways (Stripe, PayPal, Midtrans, GrabPay, OVO) with unified reconciliation. Each gateway had different APIs, webhook formats, and reconciliation requirements.

Solusi

Built a payment abstraction layer that normalizes all gateway interactions. Implemented idempotent transactions, automatic retry logic, webhook processing with guaranteed delivery, and a reconciliation system that matches transactions across gateways.

Hasil

99.7%
Payment Success Rate
-95%
Reconciliation Time
2 days
Gateway Integration
500K/month
Transaction Volume

Teknologi

Node.js
NestJS
PostgreSQL
Redis
Docker

Adding a new payment method used to take weeks of development. Now we can integrate a new gateway in 2 days using the abstraction layer. The reconciliation automation alone saves our finance team 30 hours monthly.

David Tanaka - VP of Engineering

Transparent API Development Pricing

Fixed pricing with no hidden costs. Every package includes documentation, security implementation, and 12 months of support.

Starter

Single API projects, basic integrations, MVPs, and proof-of-concept development

Starting from
$3,500
up to $5,500
  • Single API with 5-15 endpoints
  • REST or GraphQL implementation
  • Basic authentication (API key or JWT)
  • 1-2 third-party integrations
  • PostgreSQL or MongoDB database
  • OpenAPI documentation
  • Basic rate limiting
  • Cloud deployment (AWS/GCP)
  • 12 months support & maintenance
  • Delivery: 8-10 weeks
Popular

Business

Multi-system integrations, SaaS backends, and growing businesses needing robust APIs

Starting from
$7,500
up to $13,500
  • Multiple APIs with 20-40 endpoints
  • REST and GraphQL as needed
  • OAuth 2.0 with role-based access
  • 3-5 third-party integrations
  • Real-time features (WebSockets)
  • Redis caching layer
  • Comprehensive monitoring
  • Load testing and optimization
  • CI/CD pipeline setup
  • 12 months priority support
  • Delivery: 12-16 weeks

Enterprise

Complex integrations, microservices architecture, high-traffic systems, and regulated industries

Starting from
$18,000
  • Microservices architecture
  • 50+ endpoints across services
  • Advanced security (MFA, encryption)
  • Unlimited third-party integrations
  • Event-driven architecture
  • Message queues (Kafka/RabbitMQ)
  • Container orchestration (Kubernetes)
  • Compliance support (HIPAA, PCI, GDPR)
  • Penetration testing included
  • Dedicated technical architect
  • 12 months comprehensive support
  • Delivery: 18-24 weeks

All packages include: API documentation, security implementation, testing, deployment, source code ownership, and 12 months maintenance support

Need a Custom Solution?

Complex legacy integrations, specific compliance requirements, or unique architecture needs? Let's discuss a tailored solution.

FAQ

Frequently Asked Questions

Answers to common questions about our API and backend development services

Technical

REST APIs use fixed endpoints that return predetermined data structures—ideal for simple, predictable integrations. GraphQL lets clients request exactly the data they need in a single query—better for complex applications with varying data requirements. We recommend REST for standard integrations and GraphQL when flexibility is priority. Many projects use both.
Yes, we regularly integrate with legacy systems that lack modern APIs. We can build middleware layers, consume SOAP services, connect to older databases, or create adapters for proprietary protocols. During discovery, we assess your existing systems and design the most effective integration approach.
We implement versioning strategies appropriate for your use case: URL versioning (v1, v2), header versioning, or query parameter versioning. We also establish deprecation policies so consumers have time to migrate. Breaking changes are communicated well in advance with migration guides.

Timeline

Timeline depends on complexity. Simple APIs with basic integrations take 8-10 weeks. Business-grade systems with multiple integrations require 12-16 weeks. Enterprise microservices architectures take 18-24 weeks. We provide fixed timelines upfront and have a 98% on-time delivery rate.

Security

Security is built into every layer. We implement OAuth 2.0 or JWT authentication, role-based access control, AES-256 encryption for data at rest and in transit, and follow OWASP API security guidelines. Enterprise packages include penetration testing and security audits. All APIs use HTTPS and implement rate limiting.

Support

This is covered in our 12-month support. When services like Stripe, Salesforce, or payment gateways update their APIs, we update your integrations at no extra cost. We also design integrations with abstraction layers so changes in one system don't cascade throughout your platform.
Bug fixes and security updates are covered in the 12-month support period. For new features or significant changes, we provide transparent quotes based on scope. Since we built the system, we can implement changes efficiently. Many clients choose monthly retainer packages for continuous development.

Documentation

Comprehensive documentation is included in every package. You receive OpenAPI 3.0 specifications, interactive documentation, Postman collections for testing, code samples in multiple languages, and integration guides. Documentation is created alongside development, ensuring accuracy.

Operations

Every project includes monitoring infrastructure: real-time dashboards showing request rates, latency, and error rates; automated alerting when metrics exceed thresholds; distributed tracing for debugging complex issues; and log aggregation for analysis. You'll know about problems before your users do.

Compliance

Yes, our Enterprise package includes compliance support. We implement technical controls required for HIPAA (healthcare), PCI-DSS (payment processing), and GDPR (data protection). This includes encryption, audit logging, access controls, and data handling procedures. We work with your compliance team to ensure requirements are met.

Ready to Build Your API Infrastructure?

Free consultation to discuss your integration requirements. Our team will help you design the right architecture for your business goals.