You will get a production-ready SaaS backend with NestJS & PostgreSQL
Top Rated
Project details
I build production-ready SaaS backends using NestJS, TypeScript, PostgreSQL, and Node.js for teams that need a reliable backend they can confidently build on.
This service is ideal if you’re launching a SaaS product, rebuilding a fragile API, or adding features that have started breaking existing functionality.
I can handle:
API architecture & development
PostgreSQL database design
Authentication & role-based permissions
Prisma or Drizzle ORM
Redis, queues & background jobs
Webhooks & third-party integrations
Testing & deployment support
My focus is on clean architecture, predictable APIs, secure access control, maintainable code, and scalable database structures.
You’ll receive organized source code, documented APIs, testing where included, and a backend your frontend or mobile team can work with immediately.
What Makes This Project Different?
I build backends for long-term growth, making it easy to scale users, integrations, features, background jobs, databases, and development teams.
You’re not just getting a collection of API endpoints. You’re getting a structured, scalable backend foundation built for a real SaaS product.
This service is ideal if you’re launching a SaaS product, rebuilding a fragile API, or adding features that have started breaking existing functionality.
I can handle:
API architecture & development
PostgreSQL database design
Authentication & role-based permissions
Prisma or Drizzle ORM
Redis, queues & background jobs
Webhooks & third-party integrations
Testing & deployment support
My focus is on clean architecture, predictable APIs, secure access control, maintainable code, and scalable database structures.
You’ll receive organized source code, documented APIs, testing where included, and a backend your frontend or mobile team can work with immediately.
What Makes This Project Different?
I build backends for long-term growth, making it easy to scale users, integrations, features, background jobs, databases, and development teams.
You’re not just getting a collection of API endpoints. You’re getting a structured, scalable backend foundation built for a real SaaS product.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$3,500
|
Standard
$5,500
|
Advanced
$8,000
|
|---|---|---|---|
| Delivery Time | 10 days | 14 days | 21 days |
Number of Revisions | 2 | 2 | 3 |
Number of Pages | 0 | 1 | |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
Frequently asked questions
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MV
Michael V.
Jul 7, 2026
NextJS and NestJS Developer Needed for Patient Portal and Admin Panel - Telehealth
Nelson is my absolute dog!
PK
Pratik K.
Jun 12, 2026
Full Stack Engineer - Uncapped Potential
Working with Nguyen over the past year has been a consistently positive experience. He delivers high-quality work across React, JavaScript, TypeScript, and a wide range of frontend libraries. Beyond frontend, he also contributed meaningfully on the backend, working with Python, Django, and AWS alongside his core work.
What sets Nguyen apart is his attitude. He's professional, friendly, and gets things done. He respects feedback and change requests without unnecessary pushback, which makes iteration fast and collaboration easy. He's comfortable working within structured project management workflows (we used Linear, and he handled it well), and his communication is clear and reliable whether real-time or async. His hours overlap well with the US, which made coordination seamless.
He's upfront about where he's still growing on the backend side, but his willingness to learn and fill whatever role is needed makes him a highly adaptable team member.
If you're looking for a skilled, dependable full stack engineer who's a pleasure to work with, Nguyen is your guy. We'd hire him again without hesitation.
What sets Nguyen apart is his attitude. He's professional, friendly, and gets things done. He respects feedback and change requests without unnecessary pushback, which makes iteration fast and collaboration easy. He's comfortable working within structured project management workflows (we used Linear, and he handled it well), and his communication is clear and reliable whether real-time or async. His hours overlap well with the US, which made coordination seamless.
He's upfront about where he's still growing on the backend side, but his willingness to learn and fill whatever role is needed makes him a highly adaptable team member.
If you're looking for a skilled, dependable full stack engineer who's a pleasure to work with, Nguyen is your guy. We'd hire him again without hesitation.
PK
Pratik K.
Jun 9, 2026
Senior Full Stack Developer
Nguyen is a very capable full stack engineer who has delivered work for us consistently, on time. He is a very active communicator, and very friendly.
JU
Jordan U.
Apr 12, 2026
Backend & Infrastructure Engineer (PostgreSQL / AWS) for Fast-Growing SaaS
I started working with Nguyen on a complex backend infrastructure project. We're in the early stages of building an app and were looking for an expert to help with the architecture. He started by delivering a demonstration project to showcase his skills, which he turned around very quickly and made it easy to assess how talented he was.
He was fantastic to work with throughout that initial engagement, delivering quality work quickly. We then moved to the next phase, which was taking a complex problem we've been thinking about for a while and providing recommendations, a timeline, and a structured path to build it out.
He was realistic with his estimates and extremely helpful in thinking through the different challenges, providing clear and well-reasoned explanations. His communication has been fantastic. He's positive, friendly, and nice to work with, and we're looking forward to continuing to work with him. He has been excellent.
He was fantastic to work with throughout that initial engagement, delivering quality work quickly. We then moved to the next phase, which was taking a complex problem we've been thinking about for a while and providing recommendations, a timeline, and a structured path to build it out.
He was realistic with his estimates and extremely helpful in thinking through the different challenges, providing clear and well-reasoned explanations. His communication has been fantastic. He's positive, friendly, and nice to work with, and we're looking forward to continuing to work with him. He has been excellent.
MV
Michael V.
Mar 8, 2026
NextJS and NestJS Developer Needed for Patient Portal and Admin Panel - Telehealth
About Nguyen
Senior Full Stack Developer | Next.js, NestJS, AWS | SaaS, MVP & AI
100%
Job Success
Ho Chi Minh City, Vietnam - 6:22 am local time
WHAT I GET BROUGHT IN FOR
1. SaaS and MVP builds: idea to production, one person owning frontend, backend, database and deployment.
2. Backend systems: NestJS and Node.js APIs, auth and permissions, background jobs, queues, webhooks, third-party integrations.
3. AI product work: LLM features, agents, AI image and video pipelines, voice AI, shipped inside real products with real users.
4. Rescue work: slow queries, breaking deploys, unreliable jobs, and codebases that need to ship again.
WORK THAT SHOWS THE LEVEL (all three are Upwork contracts, 5 stars; full case studies in my portfolio below)
1. SceneWeaver: Founding Engineer, empty repo to closed beta used by filmmakers and educators in 30+ countries. Built the script-to-storyboard-to-video AI workflow, async media pipelines, and the AWS infrastructure. $60K+ over 1,556 hours.
2. Novi: HIPAA telehealth for GLP-1 care, now supporting 100,000+ patients. Built it with Next.js and NestJS, PHI handling on AWS, Stripe subscriptions, and integrations with three provider networks. The client brought me back as Head of Engineering, where I am today.
3. Press Play: national dance convention platform running across 20+ cities in the US and Canada. Next.js, Node.js, Prisma, Stripe, AWS. 972 hours, $48,600, completed February 2026.
HOW I WORK
I ask what the highest-risk piece is before I write any code, and I tell you when something should be cut for v1. You get code your next developer can read, short written updates, and no surprise rewrite six months later. Based in Ho Chi Minh City (ICT). I keep hours that overlap the US working day and I reply the same day, every day.
STACK
Next.js 15, React 19, TypeScript, Tailwind CSS, shadcn/ui
NestJS, Node.js, Express, Python, FastAPI, Django
PostgreSQL, Prisma, Drizzle, Redis, BullMQ
AWS (Certified), Vercel, Supabase, Neon, Docker, GitHub Actions
Stripe, Paddle, Supabase Auth, Firebase Auth
OpenAI, LangChain, LangGraph, Vercel AI SDK, Replicate, ElevenLabs
CERTIFICATIONS
AWS Certified Solutions Architect - Associate
AWS Certified Developer - Associate
Upwork Skill Certification - React Front-End Development
If you are starting a SaaS build, restarting a stalled one, or your backend is the thing holding the product back, send me the details and I will tell you what I would build first and what I would cut. A short chat is the fastest way to start.
Steps for completing your project
After purchasing the project, send requirements so Nguyen can start the project.
Delivery time starts when Nguyen receives requirements from you.
Nguyen works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & Architecture
I review your product requirements, existing codebase, integrations, user roles, database needs, and deployment environment. From there, I define the backend structure before development begins.
Database & Core Backend
I create the NestJS architecture, PostgreSQL data model, ORM configuration, validation, error handling, and core application modules. This establishes the foundation for the rest of the application.