Backend Development

Server architecture, databases and APIs engineered to survive growth.

The backend is the part your users never see, and the part that decides whether your product stays up under real load. CodeOrigins has been engineering server-side systems for web applications, marketplaces and internal corporate tools since 2022, and we start every project from the data model rather than from the code.

We write backends that another engineer can pick up and continue. Every project ships with documented APIs, database migrations, automated tests and a configured deployment pipeline, so your business is never dependent on one specific person staying available.

Server architecture design

Work starts with architecture, not code: what modules exist, how they communicate, and where the bottleneck will appear first. For small and mid-size products we build a cleanly layered monolith split by domain, because introducing microservices too early usually adds cost without benefit. When there is a genuine need, we extract heavy processes into queues and separate services. Every architectural decision is written down, so that six months later it is clear why the system looks the way it does.

Database design and query optimisation

A badly designed database is the most expensive thing to fix later. We design the schema at the right level of normalisation and add indexes based on the queries you actually run, not on guesswork. PostgreSQL and MySQL are our main tools, with Redis for caching and queues. On existing projects we run a query audit to find N+1 problems, slow queries and missing indexes. It is common to make a system five to ten times faster this way, without buying a single extra server.

API design and documentation

If your website or mobile app needs a server, the API is the contract your product runs on. We build REST APIs with clear versioning, predictable error formats, rate limiting and token-based authentication. Where the client side genuinely needs flexible queries, we use GraphQL instead. Every API ships with OpenAPI/Swagger documentation and a Postman collection, so your frontend or mobile team can work independently without asking us to explain each endpoint.

Scaling, load and security

We prepare systems for growth up front: heavy operations move into background queues, a caching layer sits in front of the database, and the deployment is ready for horizontal scaling and read replicas. On security we follow the OWASP list — SQL injection protection, CSRF, strict role-based access, secrets kept in the server environment rather than the repository. Deployment runs through CI/CD so releases are repeatable and reversible, instead of someone copying files onto a server by hand.

How we work

01

Requirements analysis

We map the business logic, data flows and expected load. The output is a technical specification and a data model.

02

Architecture and API contract

We design the database schema and endpoint structure and agree them with your frontend team before any code is written.

03

Build and test

Code is delivered in weekly sprints with automated test coverage and mandatory peer code review on every change.

04

Deploy and monitor

We configure the server, CI/CD pipeline, log collection and error alerting, then hand over with full documentation.

Technology

  • Laravel
  • PHP
  • Node.js
  • PostgreSQL
  • MySQL
  • Redis
  • Docker
  • REST API

Selected work

The lecturer speaks their language, the student hears theirs: real-time AI translation — Backend Development
The lecturer speaks their language, the student hears theirs: real-time AI translation
A timetable that builds itself: an AI system for a school — Backend Development
A timetable that builds itself: an AI system for a school
AI Telegram bot for a real estate agency: instant answers instead of 24 hours — Backend Development
AI Telegram bot for a real estate agency: instant answers instead of 24 hours

ALL PROJECTS

Our guarantees

How we work and what you get

Transparent terms from the first call to launch: you see and check the finished product before the final payment.

  1. You pay after you check

    We hand over a fully working project. You test it, make sure everything meets your requirements, and only then pay. You choose how: the full amount after acceptance, in stages, or a partial prepayment with the rest after acceptance.

  2. Technologies written into the contract

    The programming languages, frameworks and versions for your website or app are stated in the contract before work starts, so you know exactly what you are getting.

  3. Launched and ready to use

    We install the project on your server, configure it to run securely and fast, connect your domain, and publish mobile apps on the App Store and Google Play.

  4. Technical documentation

    At handover you receive a document listing the languages, versions and technical specifications of your project, so you can verify the quality of the work.

  5. Video guide to your admin panel

    A video walkthrough of your admin panel in the language you prefer, so your team can easily manage the website or the app.

  6. Quality and free support after launch

    We follow international development standards, guarantee the quality and speed of the result, and support every project free of charge after launch, for the period set in the contract.

Frequently Asked Questions

What does a backend developer actually do?

They write the server-side logic: storing data, authenticating users, processing payments, talking to external systems. Everything that happens behind the screen and determines whether your application behaves correctly, quickly and securely under real usage.

Can you take over an existing codebase?

Yes. We start with a code audit covering quality, security and technical debt, then give you a direct verdict on what is worth fixing and what should be rewritten. An audit usually takes three to five working days and comes with a written report.

Which database do you recommend?

Usually PostgreSQL, for its strict typing, strong JSON support and handling of complex queries. MySQL is a sound choice for simpler projects or existing hosting. We add Redis as a cache and queue layer on almost every project regardless of the main database.

How long does backend development take?

An API for a mid-complexity mobile app takes four to six weeks. A full web application backend takes eight to fourteen weeks. We commit to an exact timeline after the architecture phase, once the feature list is fixed in writing.

What happens if our user base grows sharply?

We design so that scaling is a question of server resources, not of rewriting code. Heavy operations already run in queues, caching is separate, and the database is ready for replication. When traffic grows we add nodes without downtime for your users.

Do we own the source code?

Yes. All source code belongs to you under contract and lives in your own Git repository from day one of the project. You can hand the work to another team at any point without needing our permission or cooperation.

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codeorigins.info@gmail.com  |  +374 94 14 90 60

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