Development & IT Consultation with Harmanpreet K.
Development & IT Consultation with Harmanpreet K.
✅ Technology Stack Selection: Helping you choose between MEAN (MongoDB, Express.js, Angular, Node.js) or MERN (MongoDB, Express.js, React, Node.js) based on your needs.
✅ Architecture & Design: Advising on scalable backend architecture, database schema, and API design patterns.
✅ Performance Optimization: Strategies for improving frontend (React/Angular) and backend performance, including caching and lazy loading.
✅ API Development & Integration: Guidance on building RESTful APIs, authentication, and third-party integrations.
✅ Security: Implementing data encryption, authentication protocols, and securing your app from common threats.
✅ Database Management: Selecting and optimizing databases (e.g., MongoDB, PostgreSQL) for performance and scalability.
✅ Cloud Deployment: Helping with deployment on AWS, Azure, and Heroku with CI/CD setups.
✅ Real-Time Applications: Advising on Socket.io and real-time data flow.
Let me help you navigate your development process, ensuring high-quality, scalable solutions.
Get personalized advice on:
AI Integration
Chatbot Development
Database Development
IT Support & Services
Web Programming
software development
saas development
full-stack development
web application development
ai app development
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About Harmanpreet
Full-Stack Developer|React, Next.js, Node.js, SaaS & AI App|Vibe Coder
100%
Job Success
Sangrur, India - 4:41 am local time
I help startups and businesses launch fast, scalable, and production-ready applications, from MVPs to enterprise-grade SaaS platforms. I build high-performance web apps, SaaS platforms, and AI-powered products 3x faster using modern Vibe Coding workflows, without compromising quality.
✔ 100% Job Success
✔ Top Rated Plus
✔ $100K+ earned on Upwork
✔ 6,600+ hours worked
✔ Long-term client relationships
Specialized in:
- SaaS Development
- AI Integrations (OpenAI/ChatGPT)
- Next.js & React Applications
- Node.js APIs & Backend Systems
- Dashboard & Admin Panels
- Multi-tenant Architectures
- Stripe & Payment Integrations
- AWS & Cloud Deployment
Specializing in the MEAN (MongoDB, Express.js, Angular, Node.js) and MERN (MongoDB, Express.js, React, Node.js) stacks, I leverage the latest technologies to create robust, scalable, and performance-driven applications.
Here’s what I bring to the table:
Tech Stack Expertise
✅ Frontend Development:
- React.js, Next.js, Redux Toolkit, Angular
- HTML5, CSS3, Tailwind CSS, Material-UI, Bootstrap
- TypeScript and JavaScript (ES6+)
✅ Backend Development:
- Node.js, NestJS, Express.js
- GraphQL, RESTful APIs, Microservices Architecture
✅ Database Management:
- MongoDB, PostgreSQL, Firebase, MySQL
✅ AI and Machine Learning Integrations:
- OpenAI APIs (ChatGPT, GPT-4), AI/ML-powered applications
AI & LLM Skills:
OpenAI API — GPT-4, Assistants API, function calling
Claude API (Anthropic) & Google Gemini integration
AI chatbot development with custom knowledge bases
LangChain for building LLM pipelines
Vector databases — Pinecone, pgvector, ChromaDB
Prompt engineering & embedding models / semantic search
✅ DevOps and Cloud:
- AWS (Lambda, EC2, S3), Azure, Docker, Kubernetes
✅ Version Control and CI/CD:
- Git, GitHub, GitLab, Bitbucket
- Jenkins, GitHub Actions
✅ Testing Tools:
- Jest, Mocha, Chai, Cypress
✅ Project Management and Collaboration:
- Jira, Trello, Slack, Agile/Scrum methodologies
✅ Industry Experience:
Delivered successful projects across diverse industries, including:
- E-commerce and Marketplaces
- Healthcare and Telemedicine platforms
- Finance and FinTech platforms
- Education and E-learning platforms
- Travel and Hospitality platforms
- Real Estate Platforms
- Social Networking and Lifestyle Apps
- AI-driven SaaS and Automation Solutions
Why Choose Me?
I am passionate about creating scalable, performance-optimized, and user-centric applications that solve real-world problems. My development process focuses on delivering clean, maintainable code while meeting deadlines and exceeding client expectations.
Whether you’re looking to develop a brand-new AI-integrated app, revamp your existing web platform, or build a system from the ground up, I can help turn your vision into reality.
Let’s collaborate to build something exceptional. Reach out, and let’s start your project today!
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Keywords: React developer, Next.js developer, Full-stack developer, Node.js developer, SaaS developer, AI developer, TypeScript developer, API developer, Dashboard developer, MVP developer, Startup developer, Web application developer MEAN Stack Development, MERN Stack Developer, Full Stack Web Applications, API Integration Services, Secure Web Development, Responsive Web Design, Scalable Web Solutions, MongoDB Expertise, Node.js Professional, Angular Development, React Development, WebSocket Implementation, Firebase Integrations, AWS Integrations, Payment Gateway Integration, Performance Optimization, Agile Full Stack Development, Real-time Data Applications, AI Developer, LLM Developer, Generative AI, AI Automation, AI Engineer, Python AI Developer, AI Chatbot Developer, OpenAI Developer, Claude AI, GPT-4, AI Integration, AI Workflow Automation
RAG Systems, Retrieval Augmented Generation, Vector Database, Semantic Search, Embedding Models, AI Knowledge Base, Document AI, AI Search System, LangChain RAG, LlamaIndex, Pinecone, ChromaDB, FAISS
What to expect
Schedule the consultation
Choose from the freelancer’s available days and times.
Get advice for your custom needs
Share details about your project and what you want to talk about. The freelancer will review and reach out if they have questions.
Join the Zoom meeting
1-on-1 meeting with the freelancer to discuss your needs and project.
Approve the work
The freelancer will finish up the documents you asked for and send them to you for approval:
Before the consultation
Here’s what Harmanpreet will need to know before you meet
- Tell me about yourself and what you want to talk about? What is the main purpose or goal of your project?
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This project doesn't have any reviews.
PH
Phillip H.
Jan 8, 2026
Website development based on PHP, Javascript, advanced Mysql
RK
Rupinderjeet K.
Nov 22, 2024
Basic CRUD Application for Task Management
It was great working with Harmanpreet. Quick and efficient.
FB
Feurion B.
Nov 18, 2024
Looking for a fullstack developer wit AI API intergration, knowledge
I recently had the pleasure of working with Tarun and Harmanpreet Kaur, and I can only speak highly of their work. They have exceptionally skilled developers with great attention to detail and a proactive mindset.
What stood out the most was their ability to not only deliver excellent results but also propose meaningful improvements. Their advice was always well-thought-out and aimed at implementing more efficient and sustainable solutions. This demonstrated their commitment to not just completing tasks but delivering the best possible quality.
Additionally, they were always ready to adapt and implement new ideas quickly. His flexibility and problem-solving attitude made the collaboration smooth and enjoyable.
I would wholeheartedly recommend these developers to anyone looking for a professional, dedicated, and talented developers. They are a true asset to any project!
What stood out the most was their ability to not only deliver excellent results but also propose meaningful improvements. Their advice was always well-thought-out and aimed at implementing more efficient and sustainable solutions. This demonstrated their commitment to not just completing tasks but delivering the best possible quality.
Additionally, they were always ready to adapt and implement new ideas quickly. His flexibility and problem-solving attitude made the collaboration smooth and enjoyable.
I would wholeheartedly recommend these developers to anyone looking for a professional, dedicated, and talented developers. They are a true asset to any project!
RK
Rupinderjeet K.
Sep 26, 2024
MERN Stack Developer proficient in React, Node.js, Express.js, and MongoDB
I had an excellent experience working with this freelancer. They provided top-notch service on a MERN stack project and delivered everything on time. Their technical expertise, attention to detail, and commitment to deadlines made the entire process smooth and efficient. Highly recommend them for anyone looking for a reliable and skilled developer!
KD
Karline D.
Jul 27, 2024
Bubble.io Dev -Spabilaty