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You will get REST API Backend Development (NestJS or Node.js)

Samuel M.Status: Offline
Samuel M.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Samuel, priced and ready to go.
Samuel M.Status: Offline
Samuel M.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Samuel, priced and ready to go.

Project details

I build secure, production-ready REST APIs using NestJS and Node.js, the same stack I've used to power systems handling 1000+ daily transactions at 99.9% uptime across fintech and insurtech platforms in East Africa.
Every API I deliver includes proper authentication (JWT + role-based access control), input validation, error handling, and clean documentation, not just working endpoints. I've integrated payment gateways (Mpesa, Stripe, PayPal), built multi-tenant architectures, and shipped APIs consumed by both web dashboards and mobile apps (React Native + Flutter).
You get source code, Postman collection, and a brief handoff call so your team can integrate and maintain it without depending on me for every question.
I work independently, communicate daily on progress, and don't disappear mid-project.
Programming Languages
PHP, Python, TypeScript
Coding Expertise
Performance Optimization, Security, Design
What's included
Service Tiers Starter
$150
Standard
$350
Advanced
$500
Delivery Time 3 days 7 days 14 days
Number of Revisions
123
Design Customization
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Content Upload
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Responsive Design
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Source Code

Frequently asked questions

Samuel M.Status: Offline

About Samuel

Samuel M.Status: Offline
Full-Stack Engineer | Node.js, Payments, React & React Native
Nairobi, Kenya - 11:46 pm local time
I build secure, scalable backend APIs and payment integrations for fintech and SaaS products, utilizing Node.js (NestJS), Python (Django), PostgreSQL, and React. With 5+ years of shipping production systems handling 10,000+ daily transactions at 99.9% uptime, I bring senior-level reliability to every project.

Core Architecture & Integrations:
• Payment Systems: M-Pesa, Stripe, Paystack, and PayPal API integrations
• Backend Scale: Multi-tenant SaaS infrastructure & data pipelines
• Mobile Frameworks: Cross-platform React Native & Flutter architecture
• DevOps / Security: CI/CD via Docker/GitHub Actions, KYC systems

I've worked across insurtech, fintech, and e-commerce. I understand both the technical and business stakes of getting payments and data systems right.

Steps for completing your project

After purchasing the project, send requirements so Samuel can start the project.

Delivery time starts when Samuel receives requirements from you.

Samuel works on your project following the steps below.

Revisions may occur after the delivery date.

Step 1 — Requirements & Scoping

I review your brief, ask any clarifying questions, and confirm the full scope, endpoints, and data models before writing a single line of code.

Step 2 — Architecture & Schema Design

I design the database schema and API structure, then share it with you for sign-off before building begins.

Review the work, release payment, and leave feedback to Samuel.