BACKEND DEVELOPMENT
APIs, databases, business logic, and integrations. Users rarely see this layer, and every reliable experience depends on it.
WHAT BACKEND WORK COVERS
It stores the data, enforces the rules, and connects the systems around the product. When software loses data, becomes slow under load, or behaves inconsistently between the web and mobile experience, the cause is often here.
A messy interface is unpleasant. A messy data model turns every future change into a migration project. That is why backend work rewards deliberate decisions and punishes rushed ones.
“The work nobody sees is what makes the product trustworthy.”
The operating principle
WHAT I BUILD
A complete backend can serve a new product, an existing web front end, or a mobile application that needs a dependable API.
Versioned, documented REST APIs for web products, mobile apps, and third parties.
Schema, relationships, indexing, and migrations. These decisions are hardest to reverse after real data arrives.
The product rules behind pricing, permissions, workflow states, calculations, and validation.
Sign-in, sessions, tokens, roles, and checks enforced where they matter: on the server.
Payments, CRM, email, storage, and the systems a product depends on outside its own codebase.
Queues, scheduled tasks, reports, notifications, and slow operations that should not block a user request.
The API and data layer behind a mobile product, including sync and offline considerations.
TECHNOLOGIES
Production tools chosen for structured, maintainable application work rather than novelty.
A structured service layer for product rules and APIs.
Models and queries designed around real product behaviour.
Access control that lives in dependable server-side rules.
The delivery and reliability baseline an application needs.
If a specialist infrastructure decision is needed beyond this scope, I will say so early and bring the right expertise into the conversation.
PERFORMANCE & RELIABILITY
Real data volumes, concurrent users, and third-party outages create the problems a clean demo never reveals. The right work is defensive: indexed queries, pagination, caching where allowed, retries, and useful failure handling.
These are standard delivery decisions, not an expensive upgrade that appears after customers have already felt the problem.
“A backend should tell you what failed before a customer has to.”
EXISTING SYSTEMS
A lot of backend work lives inside code another team wrote: new features, performance fixes, integrations, or a system that grew without a plan.
I start by understanding the data and conventions already in place. If another layer of patches is not the right answer, I will say so before adding one.
THE APPROACH
Preserve what works, fix what matters, and avoid turning a repair into a rewrite by accident.
COMMON QUESTIONS
The practical answers before the data model, API, or integration work begins.
Yes. It is a common request when a mobile app or web interface needs a proper API and data layer behind it.
PostgreSQL unless there is a specific reason otherwise. Most product data is relational, and treating it as though it is not creates trouble later.
Yes. I read it first, follow the conventions that make sense, and explain if a rebuild is genuinely the better answer.
To a practical level: deployment, environments, CI/CD, and monitoring. Large-scale infrastructure architecture deserves a specialist.
Usually. Most backend problems are query patterns, missing indexes, or unreliable third-party calls rather than anything exotic.
You do, entirely, on final payment.
Describe what the system has to do and what it connects to. You will get a fixed price and an honest view of the technical risks.
