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Golux Group

Software engineering

Backend, API and cloud engineering that stays predictable at scale

The backend is where an MVP either becomes a product or becomes a rewrite. We build the data model, the APIs and the infrastructure so that the tenth customer costs less than the first, every access rule is tested, and your next engineer can read how it works.

Overview

Services, integrations and infrastructure sized to actual traffic. We design for observability first, so the system tells you what it needs before your users do.

  • Ruby on Rails & TypeScript
  • REST APIs
  • Data & machine learning pipelines
  • Cloud infrastructure

Problems we solve

The system slows down as it grows
Architecture chosen for the first thousand users becomes the constraint at the hundred thousandth.
Every change is risky
No tests, no observability, no boundaries, so a small feature touches everything.
Integrations are fragile
Third-party APIs fail in ways the system was never designed to absorb.

What we build

Product architecture

Service boundaries, data ownership and integration design decided before code, and written down.

Backend systems & APIs

Rails and TypeScript services with REST contracts your other teams can build against.

Cloud & scalability

Containerized deploys, sized to real load, with cost visible per service.

Security & maintainability

Authentication, authorization, auditability and a test suite that lets people change things safely.

Typical use cases

  • Modernizing a monolith without a rewrite freeze
  • Building the API layer behind a web and mobile product
  • High-volume integration and workflow engines
  • Cost and performance work on an existing cloud footprint

How we deliver

  1. 01

    Discovery

    A scoped session to agree the problem, the constraints and the metric that will move.

  2. 02

    Design & architecture

    The smallest structure that solves it, written down before anyone writes code.

  3. 03

    Build

    Two-week increments with something reviewable at the end of each one.

  4. 04

    Run & improve

    Monitoring, iteration and a handover your own engineers can carry.

Technology we use

  • Ruby on Rails
  • TypeScript
  • Python
  • PostgreSQL
  • REST APIs
  • Docker

Proof from the portfolio

Systems where the backend is the product: mail that has to arrive, monitoring that must not cry wolf, matching that has to show its evidence.

Frequently asked questions

Do you do full rewrites?
Rarely, and only when the numbers support it. Incremental modernization behind a stable interface is usually faster and far less risky.
Which cloud do you work with?
Managed PostgreSQL and container deploys on the major clouds, or whatever your team already operates.
Can you take over an existing codebase?
Yes. We start with a short audit, then agree what to stabilize first before adding features.

How to buy this

Backend work is sold as a monthly arrangement or as the whole technical side.

Started with Lovable, Bolt, v0 or Cursor?

Run the free production-readiness audit first

If your app was generated by an AI builder, the first question is not which service you need. It is what the codebase is hiding. Paste the URL, get the report in a minute. If one thing is broken, we fix that single problem rather than selling you a project.

Software engineering

Talk to us about Backend, APIs & cloud

Tell us the problem and the deadline. You will speak to an engineer, not a sales team. We typically reply within 48 hours.

The engineering notes

What we find inside AI-built apps.

The findings from the apps we audit, the fixes that worked, and what each one cost, written by the person who did the work. No roundups, no reposts.

A few emails a month. No spam, unsubscribe any time.

Golux Group

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