Hire a Backend Developer Who Builds Systems That Scale
APIs, databases, microservices, and cloud infrastructure — built by senior backend engineers at Klyvexia. Fixed-price projects or dedicated monthly retainers. US, UK, Canada & Australia clients welcome.
What Is a Backend Developer?
A backend developer is a software engineer who builds and maintains the server-side of web and mobile applications — the systems users never see but rely on completely.
They design APIs that connect your app to its data, architect databases that store and retrieve information reliably, implement authentication to protect user accounts, and deploy applications to cloud infrastructure that scales under load.
In short: if your product involves users, data, payments, or any server-side logic — you need a backend developer.
A backend developer typically handles:
Technologies Our Backend Developers Master
We recommend the right stack for your project — not the trendiest one.
Languages
Frameworks
Databases
Cloud & DevOps
APIs
Security
Backend Development Services
From a single API endpoint to a full microservices platform — we scope the work to fit your budget.
REST & GraphQL API Development
Well-documented, versioned APIs your frontend and mobile teams love to work with. OpenAPI specs included.
Database Design & Optimisation
Schema design, query optimisation, indexing strategy, and migrations for SQL and NoSQL databases.
Microservices Architecture
Break monoliths into independently deployable services that scale on demand without bringing the whole system down.
Cloud-Native Backend
Serverless functions, containers, managed databases — we pick the right AWS / GCP / Azure stack for your workload.
Authentication & Security
JWT, OAuth2, SSO, role-based access control, and OWASP-hardened APIs so your user data stays safe.
Performance Tuning
Caching layers (Redis), background queues, CDN integration, and load-testing to handle your traffic spikes.
Third-Party Integrations
Stripe payments, SendGrid, Twilio, Firebase, Salesforce, and hundreds more — integrated cleanly.
Real-Time Data & Streaming
WebSockets, Server-Sent Events, Kafka, and event-driven pipelines for live dashboards and notifications.
From Brief to Production in 4 Steps
No hand-waving. Just a clear, repeatable process.
Discovery Call
We map your system requirements, traffic expectations, integrations, and team setup in a 30-minute call.
Architecture & Proposal
We deliver a technical spec: stack choices, data models, API contracts, and a fixed-price quote — within 48 hours.
Agile Development
Two-week sprints, daily standups if needed, GitHub PRs you can review. You own the repo from day one.
Deploy & Handover
CI/CD pipeline setup, cloud deployment, monitoring dashboards, and full documentation handed over at launch.
Why Businesses Choose Us as Their Backend Development Partner
We've built backends for startups, scale-ups, and enterprises. Here's what makes us different.
Architecture First
We design the data model and API contracts before writing a single line of code — saving costly refactors later.
Security by Default
OWASP Top 10 is our baseline, not an afterthought. Every API ships with proper auth, input validation, and rate limiting.
Full Code Ownership
You own 100% of the repository, documentation, and infrastructure scripts. No vendor lock-in, ever.
Performance Engineered
We profile, cache, and load-test before launch. Your API won't buckle when you hit the front page of Product Hunt.
Async-Ready
Background jobs, event queues, webhooks, and WebSockets — designed from the start, not bolted on later.
Time-Zone Friendly
We work across US / UK / AU time zones with overlapping hours and async updates so you're never blocked waiting.
Backend Developer FAQs
Common questions about backend development, hiring, and our services.
Ready to Build Your Backend?
Tell us what you're building. We'll scope the work, suggest the right stack, and give you a fixed-price quote — usually within 48 hours.
No commitment required · Free 48-hr trial sprint available · Code ownership guaranteed