Backend development
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Backend

Backend development

We build the business logic, APIs and databases that power your applications.

The power you do not see, but do notice.

What it involves

The backend is the heart of any application. We design robust, scalable and secure architectures that support your growth — from REST and GraphQL APIs to messaging systems and real-time data processing.

This is for you if…
  • You need APIs to feed your website, app or integrations
  • Your database queries are slow or do not scale
  • You need to process large volumes of data
  • You are looking for robust authentication and authorisation
  • You have complex business logic to model properly
How we work

Our methodology,
paso a paso

01

Architecture design

We define the services, their responsibilities and how they communicate. Monolith or microservices, decided by the real scale of the project.

02

Data modelling

Database schema, relationships, indexes and data access strategy. Getting this right early saves costly migrations later.

03

API development

Endpoints built with input validation, error handling, authentication and OpenAPI/Swagger documentation.

04

Security and testing

Unit and integration tests, OWASP security analysis, secret management and configuration hardening.

05

Deploy and monitoring

Containerisation with Docker, CI/CD pipelines, performance metrics and alerting on anomalies.

Stack tecnológico
Node.jsPythonGoPostgreSQLMongoDBRedisGraphQLDockerAWS Lambda
What's included

Service capabilities

Well-documented REST and GraphQL APIs (OpenAPI)
SQL and NoSQL database management
Secure authentication and authorisation (OAuth 2.0, JWT)
Queue and asynchronous event processing
Centralised monitoring and logging
Query and database performance optimisation
Why Polaris

What sets us apart

01

Scalable from the start

Architectures ready to grow without expensive rewrites when the traffic arrives.

02

Security by design

Security practices built into every layer, not added as a patch at the end.

03

Well-documented APIs

Swagger/OpenAPI and integration guides so your team can work efficiently.

Frequently asked questions

Everything you need to know

PostgreSQL, MySQL, MongoDB, Redis… we pick the database that fits the access patterns, the consistency required and the data volume of the project.

We implement OAuth 2.0, JWT, rate limiting, strict input validation and periodic security audits across all services.

Yes. We can take over the maintenance of existing systems, including performance optimisation, bug fixing and feature evolution.

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Backend · Polaris Technologies

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