Crescentek

Technical Backend Support

The backend your client needs. Your agency's name on it.

APIs, databases, authentication, and server-side logic — built by us, handed to you. Your agency delivers the backend, we write every line of it.

Based in Ireland
GDPR compliant
Reply within 1 working day
api.youragency.ie — live
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Uptime99.97%
Avg latency48ms
Requests/min124
When to use this

Four situations where backend support fits.

Technical backend support works best when there's a clear server-side gap your agency needs filled quietly.

Your frontend dev needs a backend

Your client has a designer or frontend developer who needs someone to build the server-side logic they can't touch.

Your agency doesn't have backend capacity

You've won a project with a backend requirement your team can't cover. We build it, you deliver it.

An existing system needs extending

Your client has a working app but needs new API endpoints, integrations, or performance work on the server side.

Performance is the problem

Slow queries, inefficient APIs, or architectural bottlenecks — we diagnose and fix what's happening on the server.

What we build

Three backend areas, handled end-to-end.

APIs, data, and auth — the three server-side layers every serious web project eventually needs.

APIs & Services
REST API design and build
GraphQL endpoints
Third-party API integrations
Webhook systems
Background job queues
Data & Storage
Database architecture
Query optimisation
Schema design
Migrations
Data pipeline setup
Auth & Security
Authentication systems (OAuth, JWT)
Role-based access control
SSO integration
Security auditing
Rate limiting and abuse prevention
Stacks we work in
Node.jsPHP / LaravelPython / DjangoPostgreSQLMySQLRedisREST APIsGraphQLAWS / GCPDocker
How we work

From brief to integrated backend.

Four stages, clear outputs at each, no black-box handovers.

01

Technical brief

You send us what the client needs. We ask the technical questions so you don't have to relay back-and-forth.

02

Architecture proposal

We document what we'll build: endpoints, data models, auth approach. You review before a line of code is written.

03

Build and document

We build, comment, and document everything as if your team wrote it. No black-box handovers.

04

Integration support

We help your frontend dev or the client's team integrate against the API — with docs, examples, and one-to-one calls if needed.

Common questions

Backend support questions answered.

The questions Irish SMBs ask us most often.

Both. We regularly extend existing backends — whether that's adding endpoints to a Laravel API or extending a Node.js service. We'll review the codebase first and flag any structural issues before quoting.
We write API documentation (OpenAPI/Swagger or a clear markdown spec) and can do a live walkthrough with your developer if needed. Integration blockers get resolved by us, not by your client's team struggling through guesswork.
We scope with a change-request process built in. Minor scope changes get absorbed; significant ones get a brief written addendum. You stay in control of what's in scope and what costs extra.
We can share staging access and technical docs through you — your client sees progress, but communication goes through your agency. We don't set up separate calls or email threads with your client.
Node.js, PHP/Laravel, and Python are our primary backend stacks. For databases: PostgreSQL, MySQL, and Redis. We'll match whatever fits the project requirements rather than defaulting to one stack.
Authentication, input validation, rate limiting, and dependency auditing are built into every backend we ship — not added as an afterthought. We can provide a one-page security summary you can forward to your client's technical reviewer.

Need a backend built under your name?

Send us the brief. We'll scope, build, and document it as if your team wrote every line.

Reply within 1 working day GDPR compliant Based in Ireland