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Refactoring and scaling

SaaS refactoring and scaling for a product that is already live

We find what slows your product down or makes releases risky, then fix it step by step without a risky big-bang rewrite. Audit first, changes second.

  • Audit before changes
  • Database and query fixes
  • Safer, repeatable releases

Signs your SaaS needs refactoring

Growth exposes shortcuts taken early. Common signs are pages that load slowly once customers have real data, a database that struggles at busy times, features that break other features, releases that everyone dreads, and a few people who are the only ones who understand the code.

Refactoring means improving the structure of existing code and infrastructure without changing what customers see. Scaling means making the product keep working as customers, data and traffic increase. Usually you need both.

How we start: an audit

We do not guess. We ask for read access to the code, the deployment setup and, where possible, monitoring and slow-query data. We then run the app, profile it and read the database schema. You receive a written findings list ordered by impact and effort, so you can decide what to fix first.

Where tenancy is part of the problem, we also review how customer data is separated, linked to multi-tenant architecture. We sign an NDA on request before seeing your code.

What we usually fix

  • Database: missing indexes, repeated queries inside loops, heavy reports on the main database, and connection limits solved with PgBouncer pooling.
  • Background work: moving slow tasks such as emails, exports and imports into queues and workers.
  • Caching: caching the right data, with a clear plan for when it is cleared.
  • Code structure: breaking tangled modules apart, one area at a time.
  • Safety net: automated tests around risky areas before we change them.
  • Releases: CI/CD pipelines, staging environments and monitoring, so deploys are routine.

We prefer small, tested steps over rewrites, and we keep the product running throughout.

An audit is scoped first, and the fixing work is then quoted in writing. Some clients take a milestone project, others a dedicated engineer on retainer, typically $5,500 per month per engineer, for continuous improvement alongside new features. If the audit shows work as large as a new build, the production range of $18,000 to $35,000 is the closest reference. Ranges are typical, not offers, and the actual figure depends on what the audit finds. See pricing.

What we cannot promise

We cannot promise a specific speed-up or that incidents will never happen. Results depend on what is wrong, and some problems are only found once traffic grows. Sometimes the honest answer is that one part should be rewritten rather than patched, and we will explain why. Changing a live system always carries some risk, which is why we work in small steps with tests and a rollback plan.

  • SaaS only
  • Multi-tenant design
  • Stripe billing
  • Client owns the code

How it works

  1. Message us on WhatsApp or Telegram

    Describe the product, the customers and the features that matter most.

  2. We scope and quote

    You get the plan, the architecture outline and a written price range.

  3. We build and ship

    Working builds each sprint, then a tested production launch.

Questions about saas dev agency in United States

Should we rewrite our SaaS from scratch?

Rarely. Full rewrites take longer than expected and leave you running two products. We usually improve the existing code in stages and replace only the parts that cannot be saved. The audit gives you a reasoned recommendation instead of a guess.

Can you work while our own team keeps shipping?

Yes. We work in branches, agree on areas of the code so we do not collide, and release in small changes. A shared chat channel and regular check-ins keep your team informed of what is moving, and your engineers review what we change.

What access do you need to start?

Read access to the repository, a staging copy of the app, and where possible read-only monitoring and database statistics. We do not need production write access for an audit, and we would rather not have it. We sign an NDA on request before seeing any code.

Is our database the bottleneck?

Often it is a major factor, but not always. Slow queries, missing indexes and connection limits are common, yet application code, external services and front-end weight can matter as much. The audit shows where time is actually spent before we change anything.

Do you also add new features during refactoring?

We can. Many clients mix cleanup with feature work on a monthly engineer, with the time split as you choose. Pure refactoring does not change what customers see, so it can be hard to justify on its own. We agree on both goals up front and review the split regularly.

Ready to scope your SaaS?

Message us on WhatsApp or Telegram with the product idea and the customers it is for.

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