API design and build
REST, GraphQL or gRPC APIs with clear resources, versioning, consistent errors and OpenAPI documentation.
Backend & APIs
The engine behind your product — fast, secure and well documented.
APIs, integrations and payment flows designed so your web and mobile apps stay quick, your data stays consistent and new developers can understand the system on day one.
LaravelNestJSFastAPIGoPostgreSQLPaystack
Overview
Good back ends are invisible. Bad ones are all anyone talks about.
Every screen in your product depends on the back end: the prices it shows, the orders it takes, the payments it confirms. When the back end is well designed, nobody thinks about it. When it is not, the symptoms show up everywhere — slow pages, duplicated payments, apps that disagree with each other.
We start with the domain — the rules, data and integrations your business depends on — and design an API contract before writing code, so web, mobile and partner teams can build in parallel. Payments and other critical flows get extra care: server-side verification, idempotent processing, retries and reconciliation.
Everything ships with documentation, automated tests on the critical paths and the logging you need to understand what happens in production.
Who it’s for
- Startups building web and mobile apps on one shared back end
- Businesses integrating payments, logistics or CRM systems
- Teams whose API is slow, inconsistent or undocumented
- Partners and platforms that need to expose a public API
What we deliver
What you get
Payments and fintech flows
Paystack, Flutterwave and Stripe integrations with webhooks, idempotent processing and reconciliation reports.
Third-party integrations
Reliable connections to CRMs, messaging, logistics, accounting and identity services — with retries and monitoring.
Data modelling
Database schemas, indexing and migrations designed for correctness first and speed second.
Authentication and security
OAuth, token and session auth, role-based permissions, rate limiting and protection against common API attacks.
Scaling and observability
Caching, queues, background jobs, structured logs and metrics so you can see problems before users do.
Signs you need this
This is for you if…
- Your app gets slow at busy times and nobody knows why.
- Payments occasionally go missing, duplicate or fail to update orders.
- Your web and mobile apps each have their own copy of the business logic.
- Partners keep asking for an API and you do not have a proper one.
- There is no documentation, so every new developer starts by guessing.
- Integrations break silently and customers notice first.
Tech stack
Tools we reach for
Frameworks
LaravelNestJSFastAPIGo
Data
PostgreSQLMySQLRedisMongoDB
Messaging and jobs
QueuesWebhooksRabbitMQCron workers
API tooling
OpenAPIGraphQLgRPCPostmanAutomated tests
How we work
A clear process, from contract to production.
Map the domain
The entities, rules, integrations and failure modes your system must handle.
Design the contract
An API specification your front-end and mobile teams can review and build against early.
Build and test
Endpoints, jobs and integrations with automated tests on the critical paths, especially payments.
Deploy and observe
CI/CD, logging, metrics and alerts, with load testing where traffic is heavy.
Evolve
Versioned changes that do not break existing clients, and ongoing performance work.
Proof
Work we can point to
~300k
Songuyo e-commerce platform
Our founder led the architecture of a Laravel back end designed to handle around 300,000 requests a day.
Open source
Bagisto Paystack gateway
A published package that connects Paystack payments to the Bagisto v2 Laravel e-commerce platform.
Ways to work
Pick the model that fits the work.
Fixed-scope packages
Clearly defined deliverables at a fixed price — ideal for websites, audits and well-understood builds.
See packagesCustom quote
For bespoke products and platforms: a short discovery, then a written proposal with milestones and a fixed or capped price.
Request a quoteMonthly retainer
Ongoing support, maintenance and improvement with a guaranteed response time and a set number of hours each month.
Discuss a retainerHourly / daily
Flexible time-and-materials help for troubleshooting, code reviews, consulting and team augmentation.
Book timeQuestions
Frequently asked questions
Can’t see your question? Ask us directly — you’ll get a straight, practical answer, even if it’s “you don’t need us for this”.
REST or GraphQL?
REST is simple, cache-friendly and understood everywhere; GraphQL shines when many different screens need flexible slices of the same data. Many systems use REST for most things and GraphQL or gRPC where they clearly help. We choose per project.
How do you make payment integrations reliable?
We never trust the browser alone. Payments are confirmed on the server through the provider’s verification API and webhooks, processed idempotently so a retry never charges twice, and reconciled against provider reports.
Can you improve our existing API rather than rebuild it?
Usually, yes. We profile slow endpoints, add indexes and caching, fix inconsistent responses and document what exists. A rebuild is only worth it when the foundations are genuinely wrong.
Will our API be documented?
Yes. We produce an OpenAPI (Swagger) specification or GraphQL schema with examples, so internal teams and partners can integrate without constant questions.
How do you protect an API from abuse?
Authentication on every endpoint that needs it, permission checks on the server, input validation, rate limiting, logging and alerts. We check against the OWASP API Security Top 10.
Can the back end serve both our website and mobile app?
That is the goal. One well-designed API keeps the business rules in one place, so the website, mobile apps and partners all behave the same way.
Which language will you use?
Whatever fits your team and needs — frequently Laravel (PHP) or Python for business systems, and Node.js or Go where concurrency or specific libraries are needed. We avoid adding a language your team cannot maintain.
Have something in mind? Let’s scope it.
Tell us what you’re building, or what’s broken. We’ll come back with questions, a suggested approach and the simplest sensible next step — no obligation.