Backend, API and integration engineering
Make the systems behind your application dependable
Backend development, API design, third-party integrations, data workflows, and staged modernisation for established PHP, Symfony, Python, and Django systems.
Discuss this workBusiness rules handled consistently and testably
Integrations designed for failures and reconciliation
Legacy systems improved without a reckless rewrite
The work in context
Backend problems become business problems quickly
When core logic is scattered, integrations fail silently, or an older codebase is difficult to change, every new feature becomes slower and riskier. Replacing everything at once is rarely the safest answer.
ScriptEvolve investigates how the system behaves today, protects important data and workflows, and improves the architecture in stages. New APIs and integrations are designed around security, observability, retries, audit trails, and the realities of production failure.
What the engagement can include
- Backend architecture, domain modelling, permissions, and business rules
- REST APIs for web applications, mobile apps, partners, and internal services
- Payment, CRM, communication, identity, data-provider, and webhook integrations
- Background jobs, queues, scheduled work, reconciliation, and audit trails
- PHP and Symfony or Python and Django feature development
- Legacy review, test coverage, performance work, and staged modernisation
Modernisation without unnecessary disruption
The objective is not to replace stable code for appearance. Changes are prioritised by business risk, maintainability, security, and the value they unlock.
A dependable route to production
How this work moves forward
Each stage produces a useful decision or working result. Scope stays visible, technical risks surface early, and the next investment is based on evidence.
01
Trace the current behaviour
Map dependencies, data flows, failure points, security boundaries, and undocumented business rules.
02
Choose safe boundaries
Separate the highest-value improvements into testable components, APIs, or migration stages.
03
Implement and verify
Add behaviour with automated checks, operational logging, and realistic integration failure handling.
04
Release without surprises
Plan data changes, compatibility, monitoring, rollback, and support around the production release.
Relevant experience
Tools chosen for the system
The technology is selected around the existing platform, users, security needs, maintenance reality, and long-term cost—not a fashionable stack.
Common questions
Useful answers before we speak
Do older PHP or Python systems always need to be rewritten?
No. A complete rewrite can create unnecessary cost and operational risk. ScriptEvolve first identifies stable behaviour, business-critical rules, test gaps, and the boundaries where staged modernisation creates real value.
Can you build an API for an existing web or mobile application?
Yes. APIs can be introduced around an existing database or application, with authentication, permissions, validation, versioning, monitoring, and compatibility planned for the consumers that already depend on the system.
How are third-party integration failures handled?
Integrations are designed for timeouts, invalid responses, retries, duplicate events, reconciliation, and useful operational logs. Failure behaviour is treated as part of the feature, not an afterthought.
Can ScriptEvolve take over an incomplete backend project?
Yes. The initial work establishes the current state, urgent risks, missing knowledge, and a safe priority order before promising a delivery date or expanding the scope.
Start with the real problem
Need a clear technical path, not a generic proposal?
Share the current situation, constraints, and intended result. ScriptEvolve will identify the most practical next step.
Contact ScriptEvolve