
Backend Engineer & API Development ( System Design )
Starting at
$
33
/hrAbout this service
Summary
FAQs
How do we choose the right tech stack (Node.js vs. Java) for my project?
I act as your technical consultant. If you need rapid iterations and real-time features, I typically recommend Node.js (Nest.js). For complex, enterprise-grade calculation or strict type safety, I recommend Java. We decide this together during the strategy phase.
Can you take over or fix an existing backend codebase?
es, but I start with a Code Audit. I review your current architecture to assess code quality and stability. If the foundation is solid, I can build on top of it; if it is unstable, I will honestly recommend a refactoring plan to prevent future issues.
Will the architecture be able to handle high traffic as we scale?
Yes. I design stateless architectures using Docker containers. This allows the system to "horizontally scale" (add more servers automatically) on AWS or GCP to handle traffic spikes without crashing.
Do I need to hire a separate DevOps engineer for deployment?
No. My service includes the full Cloud Infrastructure setup. I configure the servers, databases, and networking on your preferred cloud provider (AWS or GCP or Other ) so the system is production-ready.
How will my frontend team know how to consume your API?
I provide interactive Swagger/OpenAPI documentation. Your frontend developers can see every endpoint, input parameter, and response format, and even test them directly in the browser without reading the backend code.
What security measures do you implement to protect my data?
I implement "Security by Design." This includes JWT authentication, granular Role-Based Access Control (RBAC), data encryption in transit (SSL) and at rest, and protection against common threats like SQL injection.
Do you provide automated tests to ensure the code is stable?
Absolutely. I deliver a robust suite of Unit and Integration tests. This ensures that the business logic is verified and that future updates won't accidentally break existing features.
Who owns the intellectual property (source code) after payment?
You own 100% of the code. Upon final delivery, I transfer the Git repository and all related assets to you. I retain no rights to your business logic or data.
What happens if we find a critical bug after the project is finished?
I provide a 14-day post-launch warranty. If any bugs related to my code arise during this period, I will fix them immediately at no extra cost to ensure a smooth launch.
Since backend work is "invisible," how will I track progress?
I don't believe in black boxes. I deploy your project to a Staging Server early in the process. You will receive weekly updates and can check the live API status and logs yourself to see the features coming to life in real-time.
Do I really need Microservices, or is a Monolith better?
I am pragmatic, not trendy. For many startups (MVPs), a Modular Monolith is faster and cheaper to build. I will only recommend Microservices if your specific scale or complexity demands it, ensuring you don't overpay for unnecessary infrastructure.
How do you ensure my cloud costs (AWS/GCP) don't spiral out of control?
I architect for cost-efficiency. I utilize serverless functions, auto-scaling limits, and "Free Tier" eligible services wherever possible during development to keep your infrastructure bills minimal while maintaining performance.
What's included
Tailored System Architecture
A custom-designed backend structure—whether a Monolithic MVP for speed or Microservices for scale—built in Node.js or Java to perfectly match your business goals.
Business Logic & Real-Time Features
Implementation of your core algorithms and, if required, real-time communication layers (WebSockets/Socket.io) for live streaming or chat capabilities
Secure & Documented API Layers
A fully secured API (REST or GraphQL) with strictly typed interfaces and interactive Swagger/OpenAPI documentation for seamless frontend integration. 5. Containerized Cloud Deployment
Containerized Cloud Deployment
Production-ready setup using Docker, configured for your specific architecture on AWS or GCP or other platforms, ensuring the application runs reliably in any environment.
Tested & Reliable Codebase
A production-grade codebase delivered with comprehensive unit and integration tests, ensuring logic is verified and the system is stable before launch.
Deployment & 14-Day Warranty
Full Dockerized cloud setup on AWS/GCP/others, plus a 14-day post-delivery support period to immediately resolve any bugs or configuration issues at no extra cost.