You will get Scalable Backend Development - REST APIs, Authentication & High Performance
Project details
🚀 Custom Backend Development & API Integration – High-Performance, Scalable, & Secure
I specialize in backend development & API integration, helping businesses build scalable, secure, and high-performance applications. With experience in Java Spring Boot, Node.js, TypeScript, and Python, I ensure robust API architecture, optimized database design, and seamless third-party integrations.
Whether you need a RESTful API, AI-powered chatbot integration, payment gateway setup (Stripe, PayPal), or custom backend logic, I deliver well-documented, efficient, and production-ready code.
Why Choose This Project?
✔ Secure & Scalable API Design (JWT, OAuth, WebSockets)
✔ Optimized Database Performance (PostgreSQL, MongoDB, Redis)
✔ Third-Party Integrations (AI Models, Payment Gateways, CRMs)
✔ Modular & Maintainable Codebase
✔ Fast Turnaround & Clean Documentation
I ensure that your application runs smoothly, scales efficiently, and delivers the best user experience. Let’s build something impactful!
I specialize in backend development & API integration, helping businesses build scalable, secure, and high-performance applications. With experience in Java Spring Boot, Node.js, TypeScript, and Python, I ensure robust API architecture, optimized database design, and seamless third-party integrations.
Whether you need a RESTful API, AI-powered chatbot integration, payment gateway setup (Stripe, PayPal), or custom backend logic, I deliver well-documented, efficient, and production-ready code.
Why Choose This Project?
✔ Secure & Scalable API Design (JWT, OAuth, WebSockets)
✔ Optimized Database Performance (PostgreSQL, MongoDB, Redis)
✔ Third-Party Integrations (AI Models, Payment Gateways, CRMs)
✔ Modular & Maintainable Codebase
✔ Fast Turnaround & Clean Documentation
I ensure that your application runs smoothly, scales efficiently, and delivers the best user experience. Let’s build something impactful!
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$199
|
Standard
$599
|
Advanced
$1,999
|
|---|---|---|---|
| Delivery Time | 7 days | 15 days | 30 days |
Number of Revisions | 3 | 3 | 3 |
Number of Pages | 10 | 15 | 30 |
Design Customization | - | - | - |
Content Upload | |||
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$100 - $500
Additional Revision
+$20
Additional API Endpoint
(+ 2 Days)
+$33Frequently asked questions
About Arjun
Expert in Full-Stack Development, AI Solutions, Cloud Computing
Bengaluru, India - 5:35 am local time
I have successfully delivered high-performance, enterprise-grade applications across fintech, healthcare, real estate, SaaS, and e-commerce industries. Whether it’s custom AI development, API integrations, web platforms, or machine learning automation, I bring efficiency, scalability, and cutting-edge technology to every project.
• Core Expertise
*. Full-Stack Development – Proficient in JavaScript, Python, Java, PHP, Angular, React, and Vue
*. Cloud Computing – Expertise in AWS, Google Cloud, and Azure
*. AI & LLM Solutions – Custom AI development, LLM agents (GPT, Qwen, RAG), NLP, and AI automation
*. Database Management – SQL, NoSQL, PostgreSQL, MongoDB, and scalable data modeling
*. API Development & Integration – RESTful APIs, GraphQL, and third-party API integrations
*. E-Commerce & Payment Systems – WooCommerce, Stripe, Razorpay, PayPal, and custom payment solutions
*. DevOps & Infrastructure – Docker, Kubernetes, CI/CD pipelines, and GitHub Actions
*. Technology Strategy & IT Consulting – Digital transformation, software architecture, and scaling solutions
• Recent Projects and Experience Highlights
• AI and Automation
*. Custom AI-Powered Chatbot with RAG & API Integrations
*. Developed an LLM-powered chatbot using GPT-4/Qwen with RAG-based document retrieval
*. Integrated secure authentication, API access, and cloud deployment
*. Delivered a customizable AI-driven customer support automation solution
*. Machine Learning: Windmill Power Forecasting & ETA Prediction
*. Built AI-driven forecasting models for energy production and logistics
*. Implemented real-time adaptive learning algorithms to enhance prediction accuracy
• Web and Backend Development
• NGO Campaign Platform – End-to-End Development
*. Built a crowdfunding platform for NGOs using Angular and Node.js
*. Integrated Razorpay payment gateway for seamless donation processing
*. Developed an admin dashboard for real-time analytics and user management
• Pay2Go Travel – Laravel-Based Payment Platform
*. Designed a payment processing system similar to PayPal using Laravel
*. Implemented secure multi-user authentication, API connections, and reporting tools
• Medical & Real Estate Data Platform
*. Architected a secure data platform for patient care and real estate analytics
*. Built real-time analytics dashboards using Power BI and AI-driven insights
*. Optimized Online Payment Systems
*. Enhanced checkout experience and security for a financial technology firm
*. Integrated Stripe, Razorpay, and PayPal APIs for seamless transactions
• Food Delivery Application Enhancements
*. Upgraded UI/UX and order management system for a major food tech company
*. Implemented AI-powered recommendations and dynamic pricing models
Why Work With Me?
*. Client-Focused Approach – Delivering business-driven solutions tailored to each client’s needs
*. Proven Track Record – Successfully worked with startups, enterprises, and SaaS-based platforms
*. Scalability & Performance – Experience designing systems that handle high-traffic applications
*. End-to-End Project Management – Expertise in architecture, development, deployment, and optimization
*. Reliable & Transparent – Clear communication, regular updates, and on-time delivery
*. I am committed to delivering high-quality solutions that align with business goals and ensure long-term success.
*. Let’s collaborate to build the next-generation AI and software solution for your business.
Steps for completing your project
After purchasing the project, send requirements so Arjun can start the project.
Delivery time starts when Arjun receives requirements from you.
Arjun works on your project following the steps below.
Revisions may occur after the delivery date.
Analysis & Requirement Gathering
Analyze client requirements and set up the project architecture & API endpoints. Identify third-party integrations, security needs, and performance optimizations.
Development & Implementation
Implement secure authentication (JWT/OAuth) and database setup. Develop API functionality while ensuring scalability & efficiency.