I will design a scalable nodejs backend architecture and rest API

D
dev_sen_saikat
D
dev_sen_saikat
Saikat Sen

About this gig

Need a backend that can scale without a costly rewrite? I design Node.js backend architecture and REST APIs for new products and growing teams.


I am a senior backend engineer who designed and runs the architecture for a live fintech platform in Bangladesh, supporting thousands of concurrent users, real transactions, and zero-downtime deployments. I bring those production lessons to your project.


Depending on your package, I can provide:

- Existing codebase audit with a written report and recommendations

- Backend architecture and database schema design (MongoDB or PostgreSQL)

- Versioned API structure and error handling

- JWT authentication and role-based access design

- Queue and async job design with BullMQ and Redis

- Caching, CI/CD, Docker, and monitoring design

- Backend scaffold based on the approved architecture

- A project-specific architecture document explaining key decisions


Best for startups setting a solid foundation, teams preparing to refactor, or CTOs seeking a second opinion before scaling.


Before ordering, message me with your stack, brief, expected load, and goal. I will confirm the right package and scope.

Get to know Saikat Sen

Saikat Sen

Full Stack Developer Nodejs React Laravel

5.0(3)
  • FromBangladesh
  • Member sinceJan 2022
  • Avg. response time2 hours
  • Last delivery4 years
  • Languages

    English
Full stack software engineer with 6+ years of experience building production web applications. I work on a live fintech platform in Bangladesh serving thousands of active users, using Node.js, MongoDB, Redis, Docker and GitHub Actions. My experience includes enterprise dashboards, reports, workflow systems, REST APIs and Laravel applications. I help startups and businesses build MVPs, backend APIs, dashboards and custom modules, fix Node.js, Laravel and MERN bugs, and improve codebases with Claude Code. Share your goals, tech stack and key features. I will help scope the project.

My Portfolio

Other Software Development Services I Offer