You will get NestJS Backend with Multi Tenant Support & PostgreSQL
Project details
Multi-tenant architecture is hard to get right. Most developers bolt on
"tenant isolation" as an afterthought — and it breaks the moment a client's
data leaks into another tenant's view. I've built it properly.
For Project Preffie (a live B2B2C platform in Australia), I designed the
entire multi-tenant system from scratch using PostgreSQL Row Level Security —
the gold standard for data isolation. Every query is automatically scoped to
the correct tenant at the database level, not the application layer.
What you get:
• True data isolation: PostgreSQL RLS policies ensure zero cross-tenant
data leakage, even if application code has a bug.
• Flexible auth: Email, Google, and Apple login supported out of the box.
• GraphQL or REST: You choose the API style that fits your frontend.
• Built to scale: Redis caching, connection pooling, and async patterns
baked in from day one.
If you're building a SaaS product, agency platform, franchise system, or
any application where multiple businesses share the same infrastructure,
this is the architecture you need — built by someone who's done it in production.
"tenant isolation" as an afterthought — and it breaks the moment a client's
data leaks into another tenant's view. I've built it properly.
For Project Preffie (a live B2B2C platform in Australia), I designed the
entire multi-tenant system from scratch using PostgreSQL Row Level Security —
the gold standard for data isolation. Every query is automatically scoped to
the correct tenant at the database level, not the application layer.
What you get:
• True data isolation: PostgreSQL RLS policies ensure zero cross-tenant
data leakage, even if application code has a bug.
• Flexible auth: Email, Google, and Apple login supported out of the box.
• GraphQL or REST: You choose the API style that fits your frontend.
• Built to scale: Redis caching, connection pooling, and async patterns
baked in from day one.
If you're building a SaaS product, agency platform, franchise system, or
any application where multiple businesses share the same infrastructure,
this is the architecture you need — built by someone who's done it in production.
Programming Languages
JavaScript, Java, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$200
|
Standard
$400
|
Advanced
$800
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 14 days |
Number of Revisions | 2 | 3 | Unlimited |
Design Customization | - | - | |
Content Upload | - | - | |
Responsive Design | - | ||
Source Code |
About Nisa
9+ YoE Back-end Engineer | Microservices | Spring Boot | Fintech SaaS
Tangerang, Indonesia - 3:44 pm local time
Senior Backend Engineer with 10+ years of experience building scalable backend systems, high-performance APIs, and financial platforms for fintech, banking, and SaaS companies.
I help companies design reliable backend architecture, fix slow APIs, and scale systems that must handle real production traffic and high-volume transactions.
Most of my work focuses on backend performance, API architecture, and building systems that remain stable as products grow.
Previously worked on large financial platforms where I:
• Reduced transaction processing time by 30%
• Improved approval workflows by 20%
• Optimized APIs with 15–35% faster response times
Clients usually bring me in when:
• Backend systems start failing under real user load
• APIs or databases become slow, unreliable, or difficult to maintain
• SaaS platforms need scalable backend architecture
• Complex financial transaction logic needs to be refactored safely
• Internal dashboards or operational tools need to be built
• Startups need an experienced engineer to turn complex ideas into production systems
Core expertise:
• Scalable backend development (Node.js, Spring Boot, NestJS)
• REST API & Microservices architecture
• High-performance API optimization
• PostgreSQL / MySQL / MongoDB database design & tuning
• Payment gateway & financial API integrations
• Backend architecture for SaaS platforms
Selected Results
• Improved transaction performance by 30% for a Malaysian banking platform
• Reduced approval processing time by 20% for a financial lead management system
• Built a multi-platform restaurant system (customer app, POS, kiosk, backend services)
• Delivered real-time financial dashboards for banking operations
Tech Stack
Backend
Node.js, Spring Boot, NestJS, REST APIs, Microservices
Frontend
React, Next.js, TypeScript
Mobile
Flutter
Database
PostgreSQL, MySQL, MongoDB
Infrastructure
Docker, Redis, Kafka, Kubernetes
Cloud
AWS, Google Cloud
If you need help improving backend performance, scaling APIs, or building reliable systems for your product, feel free to reach out.
Steps for completing your project
After purchasing the project, send requirements so Nisa can start the project.
Delivery time starts when Nisa receives requirements from you.
Nisa works on your project following the steps below.
Revisions may occur after the delivery date.
Client purchases and submits requirements
Client purchases and submits requirements (tenant structure, roles, auth method).
I confirm scope and send architecture diagram for approval within 24 hours.
I confirm scope and send architecture diagram for approval within 24 hours.