OUR SERVICES

Backend Development Agency — APIs & Infrastructure

We build the server-side systems your product depends on. Kultrix designs and delivers REST and GraphQL APIs, database schemas, background job queues, and cloud infrastructure that handle production load reliably and remain maintainable as your product grows.

EXPERTISE

Our Tech Stack

Node.js
TypeScript
PostgreSQL
Redis
Docker
AWS

OUR APPROACH

Flexible Engagement Models

Choose the cooperation format that best fits your business goals and development velocity.

Startups

MVP Development

Fast launch to test your idea and gather user feedback with minimal investment.

What included

  • Core feature development
  • Basic UI/UX design
  • Stable performance

Timeline Delivery within 4–8 weeks

Businesses

Full App Build

Complete cycle from initial strategy and design to final launch.

What included

  • Custom architecture & design
  • Seamless team integration
  • Production-ready release

Timeline Delivery within 3–6 months

Enterprises

Team Extension

Scale your team with expert developers to accelerate development.

What included

  • Senior-level developers
  • Seamless team integration
  • Flexible management

Timeline Flexible / Long-term

OUR PROCESS

How We Work

We specialize in creating user-centered & innovative solutions. Delivering seamless digital experiences.

Discovery

1 Week

ResearchFlow MapUser Interview
Solution

2–3 Weeks

ArchitectureWireframesPrototyping
Development

4–12 Weeks

Sprint CyclesCode ReviewQA Testing
Launch

1–2 Weeks

DeploymentMonitoringHandoff

EXPERT INSIGHTS

Clean Architecture vs Rapid Development Approach

Clean Architecture separates concerns into layers, making backends easy to test, extend, and maintain as teams and requirements grow.

Go With Clean Architecture

  • Testable by design

    Business logic has no framework dependencies — unit tests run in isolation.

  • Framework independent

    Swap databases or HTTP frameworks without touching domain logic.

  • Clear ownership

    Each layer has a single responsibility — easy to find and change code.

  • Scales with team size

    Multiple developers work in parallel without stepping on each other.

Go With Rapid Development

  • Fastest initial build

    Skip architecture decisions — write business logic directly in routes.

  • Less boilerplate

    No repository interfaces or use-case classes to scaffold.

  • Easy onboarding

    Flat file structure is immediately understandable.

  • Prototype speed

    Ideal when validating an idea before committing to architecture.

EXPERT GUIDANCE

Clean Architecture vs Rapid Development

Clean Architecture

Testability

High — domain layer has zero framework dependencies.

Initial Velocity

Slower — layers and interfaces to scaffold first.

Long-term Maintainability

Excellent — changes localised to the correct layer.

Onboarding

Requires understanding the architecture pattern.

Database Migration

Easy — swap the repository implementation, domain unchanged.

Best For

Production APIs, growing teams, long-lived codebases.

Rapid Development

Testability

Low — business logic intertwined with DB and HTTP calls.

Initial Velocity

Fast — write a route handler and ship.

Long-term Maintainability

Degrades rapidly — change one thing, break another.

Onboarding

Flat structure is immediately navigable.

Database Migration

Painful — DB calls scattered throughout the codebase.

Best For

Prototypes, hackathons, and validating early-stage ideas.

DELIVERABLES

What You Get

API Design

API Design

Versioned REST or GraphQL API with OpenAPI documentation and type-safe contracts.

Database Schema

Database Schema

Normalized relational schema with indexes, constraints, and migration history.

Auth System

Auth System

JWT or session auth with OAuth social login, refresh tokens, and RBAC.

Background Jobs

Background Jobs

Redis-backed job queue with retries, scheduling, and a monitoring dashboard.

Cloud Setup

Cloud Setup

Production infrastructure on AWS or Railway with secrets, scaling, and backups.

API Documentation

API Documentation

Auto-generated OpenAPI docs with example requests, responses, and error codes.

INDUSTRIES

Tailored Solutions for Your Specific Industry

We build powerful digital experiences across various sectors, ensuring your product meets unique market demands.

(01)

Fintech

Data-driven commerce solutions that improve journeys, boost sales, and optimize operations.

(02)

Retail

Data-driven commerce solutions that improve journeys, increase sales, and optimize operations.

(03)

Healthcare

Reliable medical platforms that protect patient data, simplify workflows, and support clinical accuracy.

(04)

B2B SaaS

Product-driven platforms that enhance workflows, automate processes, and scale with your business.

CASE STUDIES

Our Recent Work

View All

START YOUR PROJECT

Ready to build with expert Backend Development team?

Expert developers ready to deliver high-quality digital products.

INSIGHTS

Backend Development Insights

Hire React Native Developers: A Comprehensive 2026 Checklist

Hire React Native Developers: A Comprehensive 2026 Checklist

Complete guide to hire React Native developers in 2026. Find skilled devs, avoid costly mistakes, and build your MVP faster with expert strategies.

2026-03-27

Native App: Understanding Its Role in Modern Development

Native App: Understanding Its Role in Modern Development

Master native app development for superior performance and user experience. Expert guide on platforms, costs, and when to choose native over cross-platform solutions.

2026-04-05

Choosing the Right Android App Development Company in 2026

Choosing the Right Android App Development Company in 2026

Find the right Android app development company in 2026. Expert comparison of costs, technologies, and selection criteria for startup success.

2026-04-09

View All

FAQ

Frequently Asked Questions