You will get EXPERT | NodeJS | Express JS | NestJS | Best Back-end Developer
Project details
✍️Professional Node.js Backend Development | Secure, Scalable REST APIs
I offer expert backend development with Node.js and Express.js to create secure, high-performance REST APIs tailored to your business needs. From basic CRUD operations to advanced AI integrations with OpenAI’s GPT-4, I build robust backend solutions that power your applications efficiently.
🔑 Services I Offer:
REST API Development: Develop fast, scalable REST APIs using Node.js and Express.js, customized to your requirements.
AI Integration with OpenAI/GPT-4: Add AI-driven capabilities, from chatbots to intelligent data processing, using OpenAI’s latest models.
Database Solutions: Design and manage scalable SQL/NoSQL databases with a focus on optimized performance.
Security & Authentication: Implement secure user authentication, data protection, and role-based access controls.
Innovation: Leveraging cutting-edge tools and best practices.
Quality: Commitment to delivering reliable, scalable solutions with clear communication and collaboration.
Thank you for considering my profile! I look forward to the opportunity to work together.
Best Regards,
Hiren D.
I offer expert backend development with Node.js and Express.js to create secure, high-performance REST APIs tailored to your business needs. From basic CRUD operations to advanced AI integrations with OpenAI’s GPT-4, I build robust backend solutions that power your applications efficiently.
🔑 Services I Offer:
REST API Development: Develop fast, scalable REST APIs using Node.js and Express.js, customized to your requirements.
AI Integration with OpenAI/GPT-4: Add AI-driven capabilities, from chatbots to intelligent data processing, using OpenAI’s latest models.
Database Solutions: Design and manage scalable SQL/NoSQL databases with a focus on optimized performance.
Security & Authentication: Implement secure user authentication, data protection, and role-based access controls.
Innovation: Leveraging cutting-edge tools and best practices.
Quality: Commitment to delivering reliable, scalable solutions with clear communication and collaboration.
Thank you for considering my profile! I look forward to the opportunity to work together.
Best Regards,
Hiren D.
Programming Languages
HTML & CSS, JavaScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$100
|
Standard
$500
|
Advanced
$1,200
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 28 days |
Number of Revisions | 3 | Unlimited | Unlimited |
Number of Pages | 2 | ||
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code | - |
Optional add-ons
You can add these on the next page.
Additional Page
(+ 2 Days)
+$120
34 reviews
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AF
Anthony F.
Jan 20, 2025
Freelance Full-Stack Developer (Online Survey Website)
Thank you Hiren, for your hard work and dedication! Your expertise have been invaluable, and we truly appreciate the effort you’ve put into delivering exceptional results.
Looking forward to collaborating with you again in the future!
Looking forward to collaborating with you again in the future!
EP
E P.
Feb 18, 2024
Coding: Create Pixel Perfect React JS Templates
YK
Yoav K.
Sep 2, 2023
Backend work- AWS, run python codes, create database -front presents properly all python results
Hiren is very nice to work with
RF
Robby F.
Jul 6, 2023
Hiren completed the task quickly and efficiently.
Very happy with his work :-)
Very happy with his work :-)
ZT
Zholl T.
Jul 5, 2023
Full Stack Developer Needed for Quick Website Edits. (Amazon API Experience preferred)
Great person to work with. Very good at communication and will definitely work with again!
About Hiren
Senior AI/ML Engineer | Full-Stack AI Solutions | LLMs, RAG, OpenAI
94%
Job Success
Surat, India - 3:58 am local time
I help startups and enterprises design, develop, and scale production-ready AI solutions powered by LLMs, RAG, Generative AI, and modern cloud architecture, turning ambitious ideas into intelligent products that deliver measurable business results.
My expertise spans the complete AI product lifecycle, from architecture design and data engineering to model integration, deployment, optimization, and long-term scalability. I have hands-on experience building intelligent applications using OpenAI APIs, LangChain, Hugging Face, vector databases, embeddings, cloud platforms, and modern full-stack technologies.
Core Areas of Expertise:
• Generative AI & Large Language Models (LLMs)
• Retrieval-Augmented Generation (RAG)
• AI Agents & Conversational AI
• OpenAI, LangChain & Hugging Face
• Vector Databases, Embeddings & Semantic Search
• AI Workflow Automation
• Machine Learning & NLP Solutions
• Data Engineering & Analytics Pipelines
• SaaS Product Development
• Cloud Architecture (AWS, Azure, GCP)
• API Development & System Integrations
• Scalable Enterprise Applications
I have worked on AI-powered SaaS platforms, recruitment CRM/ATS systems, candidate matching engines, knowledge management platforms, recommendation systems, analytics dashboards, workflow automation solutions, and intelligent business applications.
What sets my approach apart is a strong product mindset combined with engineering excellence. I focus not only on implementing AI technologies but also on building solutions that improve operational efficiency, enhance user experiences, and generate measurable business outcomes.
Whether you need an AI-powered platform from the ground up, advanced LLM integrations, RAG pipelines, intelligent automation, or a scalable cloud-based SaaS product, I can help turn complex requirements into reliable, production-ready solutions.
I don't just build AI features, I help businesses launch AI products that users adopt, teams rely on, and organizations can scale with confidence.
Steps for completing your project
After purchasing the project, send requirements so Hiren can start the project.
Delivery time starts when Hiren receives requirements from you.
Hiren works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Gathering & Project Planning
We’ll start by understanding your project needs, including the features you require, API endpoints, and OpenAI or GPT model integration (if applicable). I’ll gather detailed requirements for the backend, database, and security features.
Node.js Backend & API Architecture development process