I will develop scalable nodejs backend apis and system architecture


Über diesen Service
Need a backend that won't fall over when traffic gets real?
I'm Sanjeev a senior backend engineer with 6 years building real-time, distributed systems where downtime means money lost (fintech, comms platforms, SaaS). I bring that same senior-level engineering to your project.
What I build:
⭐ Production REST & GraphQL APIs (Node.js, NestJS, Express)
⭐ Scalable system & database architecture (MongoDB, MySQL, PostgreSQL)
⭐ Real-time & event-driven systems (WebSockets, Kafka, queues)
⭐ Auth & RBAC, Stripe/payments, third-party integrations
⭐ System design audits I tell you what will break before it does
Why me: I've shipped for startups across the US, UK, EU and Canada. You get clean, maintainable code, senior judgment, and honest advice not another junior dev.
How it works:
1. Message me your requirements or current setup
2. I scope it honestly with timeline + price
3. I build, test, document and deliver
Have an existing system to scale or fix? Message me before ordering and let's talk.
Best,
Sanjeev
Lerne Sanjeev Sharma kennen
Senior FullStack AI Engineer 10 yrs shipping realtime, scalable solution
- AusIndien
- Mitglied seitApr. 2020
- Letzte Lieferung2 Jahre
Sprachen
Hindi, Englisch
Meine weiteren Dienstleistungen im Bereich Software-Entwicklung
FAQ
I don't know which package fit my needs what should I do?
Please don't worry I can surely define a custom offer for your needs.
I have the frontend ready, Can you develop the backend?
Yes, I can develop the backend and integrate it with your frontend.
Can you integrate payment gateways, for instance, stripe, paypal etc?
Don't you worry about that, Yes, I can integrate almost ALL kinds of payment gateways as of now.
How can Node.js benefit my project?
Node.js can benefit your project in several ways. It offers a fast and scalable runtime environment, making it ideal for building high-performance applications. Its event-driven, non-blocking I/O model allows for handling concurrent requests efficiently. Additionally, Node.js has a vast ecosystem of
Can you provide examples of projects you have worked on using Node.js?
Absolutely! I have worked on a variety of projects using Node.js. Some examples include building RESTful APIs, real-time chat applications, e-commerce platforms, and microservices architectures. Each project showcases the versatility and power of Node.js in different use cases.
What is your approach to ensuring the security of Node.js applications?
Ensuring the security of Node.js applications is a top priority for me. I follow industry best practices, including input validation, data sanitization, and protection against common vulnerabilities like cross-site scripting (XSS) and SQL injection. I also employ authentication and authorization mec
How do you handle scalability and performance optimization in Node.js applications?
Scalability and performance optimization are crucial aspects of Node.js development. I adopt various strategies such as implementing caching mechanisms, using efficient algorithms, optimizing database queries, and leveraging asynchronous programming techniques to maximize performance. Horizontal sca
Can you explain your development process and how you collaborate with clients during the project?
My development process involves close collaboration with clients throughout the project. I begin by gathering requirements and understanding your vision for the application. Regular communication channels, such as meetings or calls, are established to provide updates and gather feedback. I follow an
13 Bewertungen für diesen Service
| (13) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Zusammensetzung der Bewertung
- Kommunikation
- An einen Freund weiterempfehlen
- Dienstleistung wie beschrieben
Sortieren nach:
S sylvien494
Wiederkehrender Kunde

Kanada
Excellent as usual
Bis zu 50 $
Preis
1 Tag
Dauer
B 
Antwort des Freelancers
Hilfreich?S sylvien494
Wiederkehrender Kunde

Kanada
Excellent Job
Bis zu 50 $
Preis
4 Tagen
Dauer
B 
Antwort des Freelancers
Hilfreich?S sylvien494
Wiederkehrender Kunde

Kanada
Working with you is always good. very satisfied
100 $-200 $
Preis
4 Tagen
Dauer
B 
Antwort des Freelancers
Hilfreich?W 
walid373
Wiederkehrender Kunde

Belgien
Fast and good work, thank you!
B 
Antwort des Freelancers
Hilfreich?W 
walid373
Wiederkehrender Kunde

Belgien
Very fast, professional and good communication
B 
Antwort des Freelancers
Hilfreich?
13 Bewertungen für diesen Service
| (13) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Zusammensetzung der Bewertung
- Kommunikation
- An einen Freund weiterempfehlen
- Dienstleistung wie beschrieben
Sortieren nach:
S sylvien494
Wiederkehrender Kunde

Kanada
Excellent as usual
Bis zu 50 $
Preis
1 Tag
Dauer
B 
Antwort des Freelancers
Hilfreich?S sylvien494
Wiederkehrender Kunde

Kanada
Excellent Job
Bis zu 50 $
Preis
4 Tagen
Dauer
B 
Antwort des Freelancers
Hilfreich?S sylvien494
Wiederkehrender Kunde

Kanada
Working with you is always good. very satisfied
100 $-200 $
Preis
4 Tagen
Dauer
B 
Antwort des Freelancers
Hilfreich?W 
walid373
Wiederkehrender Kunde

Belgien
Fast and good work, thank you!
B 
Antwort des Freelancers
Hilfreich?W 
walid373
Wiederkehrender Kunde

Belgien
Very fast, professional and good communication
B 
Antwort des Freelancers
Hilfreich?

