You will get a secure REST API using Node.js or NestJS
Project details
Need a secure and scalable REST API for your web or mobile application?
I help startups and businesses build reliable backend systems using Node.js or NestJS. Whether you need a new API from scratch or want to improve an existing backend, I can deliver clean, maintainable, and well-structured server-side solutions.
What I can help with:
Build a REST API from scratch
Develop backend architecture using Node.js or NestJS
Implement authentication and authorization
Create secure API endpoints
Connect databases such as PostgreSQL or MongoDB
Integrate third-party services
Improve or refactor an existing API
Add validation, error handling, and logging
What you can expect:
Clean and scalable backend structure
Secure development practices
Clear communication during the process
Reliable and maintainable code
A backend ready for future growth
This service is suitable for SaaS products, admin panels, dashboards, mobile applications, and custom business systems.
I help startups and businesses build reliable backend systems using Node.js or NestJS. Whether you need a new API from scratch or want to improve an existing backend, I can deliver clean, maintainable, and well-structured server-side solutions.
What I can help with:
Build a REST API from scratch
Develop backend architecture using Node.js or NestJS
Implement authentication and authorization
Create secure API endpoints
Connect databases such as PostgreSQL or MongoDB
Integrate third-party services
Improve or refactor an existing API
Add validation, error handling, and logging
What you can expect:
Clean and scalable backend structure
Secure development practices
Clear communication during the process
Reliable and maintainable code
A backend ready for future growth
This service is suitable for SaaS products, admin panels, dashboards, mobile applications, and custom business systems.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, LocalizationWhat's included
| Service Tiers |
Starter
$300
|
Standard
$500
|
Advanced
$1,000
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 20 days |
Number of Revisions | 2 | 3 | 3 |
Number of Pages | 5 | 6 | 10 |
Design Customization | |||
Content Upload | - | ||
Responsive Design | - | - | |
Source Code | - | - |
Frequently asked questions
About Olya
Full-Stack JavaScript Node React Next Nest AWS MERN developer PM
Kyiv, Ukraine - 3:24 pm local time
My role is to understand your goals, translate them into clear technical tasks, assemble the right team, and make sure the project is delivered without delays.
We help startups and companies with:
🚀 Custom Web Applications
📱 Mobile apps (iOS / Android / Cross-platform)
💸 SaaS platforms & subscription products
⚙️ System integrations & automation
♻️ Refactoring & architecture redesign
🛠 Ongoing development & support
🏆 Industries we worked with:
Real Estate platforms
Social & community apps
Healthcare & MedTech
EdTech & LMS platforms
Fitness & tracking apps
AI & automation tools
Business dashboards & internal systems
💻 Frontend stack
JavaScript / TypeScript
React, Next.js
Angular, Vue
TailwindCSS, Material UI
WebSockets, REST API
⚙ Backend stack
Node.js, Express, NestJS
PostgreSQL, MongoDB
Firebase, Supabase
REST / GraphQL APIs
Auth, JWT, OAuth
Stripe, payment integrations
Email / SMS services
🤖 AI / Automation
AI integrations
Chatbots
Workflow automation
Vector databases
Speech / text processing
Custom AI tools
We don’t just provide developers.
We help you build the right product, with the right team, and keep the process clear from start to release.
If you need reliable developers you don’t have to micromanage — feel free to message me.
Tech stack includes React, Node.js, NestJS, PostgreSQL, MongoDB, AWS, APIs, AI integrations.
Available for long-term projects.
Steps for completing your project
After purchasing the project, send requirements so Olya can start the project.
Delivery time starts when Olya receives requirements from you.
Olya works on your project following the steps below.
Revisions may occur after the delivery date.
Review your requirements
I will review your project goals, business logic, and technical requirements to understand what the API needs to handle.
Define the API scope and structure
I will identify the required endpoints, data flow, security needs, and overall backend structure.