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Fiverr Pro
Nederlands
$
USD
I will design a scalable nodejs backend architecture and rest API
Saikat Sen
Over deze dienst
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.
Maak kennis met Saikat Sen
Saikat Sen
Full Stack Developer Nodejs React Laravel
- Afkomstig uitBangladesh
- Lid sindsjan 2022
- Gem. reactietijd2 uur
- Laatste levering4 jaar
Talen
Engels
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.
Mijn portfolio
Andere Software development diensten die ik aanbied
Veelgestelde vragen
What technologies do you use to build the backend?
This gig focuses on Node.js with Express or NestJS. I can design for MongoDB or PostgreSQL and use Redis or BullMQ where the project needs them. Please message me before ordering about any other stack.
Will I get full source code?
Any code created in your selected package is included. Audit or architecture-only packages deliver the report and design documents; the implementation package includes its backend scaffold. A GitHub handoff can be arranged if preferred.
Do you provide API documentation?
Documentation depends on the selected package: audit reports and architecture documents are included where listed. API endpoint documentation or a Postman/Swagger collection must be confirmed as part of the agreed scope before ordering.
Can you integrate a database with my API?
I can review or design MongoDB and PostgreSQL schemas. Hands-on database integration depends on the package: Basic is an audit, Standard covers architecture, and implementation is limited to the Premium scaffold scope. Confirm your database and needs before ordering.
Can you add authentication like JWT?
I can include JWT authentication and role-based access in the architecture. Hands-on implementation depends on the selected package; code is limited to the Premium backend scaffold scope. We’ll confirm the requirements before ordering.
Can you build more than 10 API endpoints?
I can design larger APIs; effort depends on endpoint complexity and integrations, not just the count. Implementation is limited to the Premium scaffold scope. Share your requirements so I can confirm fit or propose a custom scope.
Do I need to message you before placing an order?
Yes. Please share your current stack, project goal, expected load, and whether you need an audit, architecture design, or scaffold. Don’t include passwords, API keys, or other secrets.
Can you maintain or update my existing backend?
Yes. The Basic package audits an existing codebase and provides a report with recommendations. Code changes or feature work must fit the selected package; implementation is limited to the Premium scaffold scope or a custom offer. Share your stack and goals first.
