You will get NestJS & Node.js Backend Developer for Enterprise SaaS Platforms
Project details
I'm a backend developer specializing in NestJS, Node.js, TypeScript, and PostgreSQL, with hands-on experience building enterprise-grade platforms — not just simple CRUD APIs. I recently architected the backend for a full enterprise collaboration platform combining social networking, document management, scheduling, and internal operations for organizations.
What sets me apart: I don't just write endpoints — I design secure, scalable systems with proper RBAC authorization, SSO/OAuth authentication, real-time communication (Socket.IO), Elasticsearch-powered search, and clean database architecture with optimized queries. I've integrated complex third-party services like Google/Outlook Calendar, AWS (S3, SNS, CloudFront), Firebase push notifications, and AI tools like Dialogflow.
I write production-ready, well-documented code (Swagger/SLATE), follow best practices for scalability and security, and communicate clearly throughout the project so you're never left guessing about progress. Whether you need a single API module or a full enterprise backend, I bring the same attention to architecture quality that large-scale platforms require.
What sets me apart: I don't just write endpoints — I design secure, scalable systems with proper RBAC authorization, SSO/OAuth authentication, real-time communication (Socket.IO), Elasticsearch-powered search, and clean database architecture with optimized queries. I've integrated complex third-party services like Google/Outlook Calendar, AWS (S3, SNS, CloudFront), Firebase push notifications, and AI tools like Dialogflow.
I write production-ready, well-documented code (Swagger/SLATE), follow best practices for scalability and security, and communicate clearly throughout the project so you're never left guessing about progress. Whether you need a single API module or a full enterprise backend, I bring the same attention to architecture quality that large-scale platforms require.
Programming Languages
JavaScript, Python, ASP.NETCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$50
|
Standard
$150
|
Advanced
$300
|
|---|---|---|---|
| Delivery Time | 5 days | 12 days | 21 days |
Number of Revisions | 2 | 3 | Unlimited |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
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JD
Jeremy D.
Jan 25, 2025
Video editing
fast and accurate work! Highly recommend!
MG
Miles G.
Jun 16, 2024
Sfc 3 videos
Saad's work and communication is top tier. It has truly been a pleasure working with him, and he has become a friend. I am grateful for the flexibility Saad has, and his happy attitude and interest in improving his work every time.
DC
Dallas C.
Apr 23, 2024
YouTube Video Edit
KB
Kristian B.
Apr 6, 2024
Edit B-Roll
AA
Alexel A.
Nov 22, 2023
Short Form Content Editor (Alex Hormozi Style)
Saad did a great job on the videos I asked him to edit. He was timely, friendly and a great freelancer overall.
About Saad
AI Automation Engineer | OpenAI & Claude Expert | n8n, Make, RAG, MCP
100%
Job Success
Islamabad, Pakistan - 10:41 pm local time
I'm Saad, an AI Automation Engineer with 2+ years of experience building production-ready workflows using n8n, Make, and Python. I specialize in connecting AI models (GPT-4o, Whisper, Gemini, Groq/Llama) with real business systems, so businesses can automate appointment booking, customer support, lead research, and reporting instead of doing it by hand.
I've built systems handling multilingual customer conversations across WhatsApp, phone, and web, processed 10,000+ company records for lead generation, and fixed broken analytics tracking that was costing clients accurate ad data. I care about builds that actually run in production, not demos that break the first time something unexpected happens.
Core services:
AI agent & chatbot development (conversational AI, voice, multi-channel support)
Workflow automation (n8n, Make, webhooks, custom API integrations)
AI integrations (OpenAI/GPT-4o, Whisper, Gemini, Groq, Hugging Face)
Web scraping & data pipelines (Playwright, Selenium, BeautifulSoup, Apify)
Google Sheets / Drive / Airtable automation
Analytics & tracking (GTM, GA4, Facebook Pixel, consent management)
Python scripting for repetitive business tasks
Also experienced in: full-stack development (Next.js, React, Node.js, Supabase/PostgreSQL), computer vision (YOLOv8, Detectron2, real-time video streaming), and Adobe extension development (Premiere Pro, After Effects, CEP/TypeScript).
Recent work:
Built a 24/7 AI reception agent for a hospital, handling appointment bookings and inquiries across WhatsApp, phone calls, and web, using n8n, GPT-4o Vision, and Whisper for voice/image processing with conversation memory.
Built a lead-research automation system for a marketing agency, processing 10,000+ companies to replace a manual research process that previously took weeks.
Fixed a client's GTM/GA4 consent tracking setup, auditing 20+ tags to ensure accurate, compliant analytics data.
If you have a manual process eating up your team's time, or an idea for an AI agent that should be running your customer interactions, message me. I'll tell you honestly whether it's a good fit and how I'd approach it.
Steps for completing your project
After purchasing the project, send requirements so Saad can start the project.
Delivery time starts when Saad receives requirements from you.
Saad works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement analysis
Review your project requirements, existing codebase (if any), and clarify scope, tech stack, and integrations needed.
Architecture & database design
Design the database schema, API structure, and system architecture based on your requirements.