You will get Node.Js Expert | Node Developer |Back-End Developer
Project details
I craft secure, scalable, and high‑performance backend systems using Node.js, JavaScript, and Java. My goal is to turn your ideas into powerful, reliable, and future‑ready solutions.
💡 What I Offer:
⚙ Custom API Development – RESTful APIs tailored to your needs, built for performance & scalability
🗄 Database Integration – MySQL, PostgreSQL, MongoDB with optimized queries & secure data handling
🔑 Authentication Systems – JWT, OAuth, OTP‑based logins, and session persistence for seamless access
💳 Wallet API Integrations – Specialized in Indian UPI wallets, transaction history retrieval, and automation
🤖 Automation & Optimization – Reduce manual effort and improve system efficiency with backend automation
🛡 Secure Architecture – Best practices for data protection, API security, and compliance standards
✨ Why Choose Me:
📌 Proven experience in fintech backend systems & wallet integrations
📌 Clean, maintainable code with full documentation
📌 On‑time delivery without compromising quality
📌 Scalable architecture built for future growth
I don’t just build backends—I deliver solutions that work flawlessly today and adapt for tomorrow.
💡 What I Offer:
⚙ Custom API Development – RESTful APIs tailored to your needs, built for performance & scalability
🗄 Database Integration – MySQL, PostgreSQL, MongoDB with optimized queries & secure data handling
🔑 Authentication Systems – JWT, OAuth, OTP‑based logins, and session persistence for seamless access
💳 Wallet API Integrations – Specialized in Indian UPI wallets, transaction history retrieval, and automation
🤖 Automation & Optimization – Reduce manual effort and improve system efficiency with backend automation
🛡 Secure Architecture – Best practices for data protection, API security, and compliance standards
✨ Why Choose Me:
📌 Proven experience in fintech backend systems & wallet integrations
📌 Clean, maintainable code with full documentation
📌 On‑time delivery without compromising quality
📌 Scalable architecture built for future growth
I don’t just build backends—I deliver solutions that work flawlessly today and adapt for tomorrow.
Programming Languages
JavaScript, Java, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $90
These options are included with the project scope.
$90
- Delivery Time 4 days
- Number of Revisions Unlimited
- Number of Pages 1
- Design Customization
- Content Upload
- Source Code
About Rohit Kumar
AI Engineer | Data Scientist
Noida, India - 8:26 am local time
DETAILED EXPERIENCE:
- Designing, building, and optimizing MACHINE LEARNING AND DEEP LEARNING MODELS for predictive analytics and decision-making systems.
- Developing NATURAL LANGUAGE PROCESSING (NLP) PIPELINES for text classification, sentiment analysis, and language translation.
- Building COMPUTER VISION SYSTEMS for object detection, image segmentation, and facial recognition.
- Creating RECOMMENDATION ENGINES for personalized user experiences in e-commerce and social media platforms.
- Implementing TIME-SERIES FORECASTING MODELS for financial, healthcare, and IoT applications.
- Training and fine-tuning LARGE LANGUAGE MODELS (LLMs) for custom chatbot development and conversational AI.
- Building MULTI-AGENT SYSTEMS using LANGCHAIN and LANGGRAPH for complex workflows.
- Developing MULTIMODAL AI SYSTEMS for processing and analyzing text, audio, image, and video data.
- Deploying AI models into production using DJANGO, FASTAPI, and cloud platforms like AWS and GOOGLE CLOUD.
- Conducting DATA ANALYSIS and FEATURE ENGINEERING to improve model performance and accuracy.
DOMAINS:
🏥 HEALTHCARE
📊 BUSINESS
🎓 EDUCATION
🛒 E-COMMERCE
📱 SOCIAL MEDIA
💼 FINANCE & BANKING
🚗 AUTOMOTIVE
🛍️ RETAIL
📞 TELECOMMUNICATIONS
⚡ ENERGY & UTILITIES
✈️ TRAVEL & HOSPITALITY
🏭 MANUFACTURING
🎮 GAMING & ENTERTAINMENT
SKILLS:
LANGUAGES/TECHNOLOGIES: Python, C++, R, MATLAB, Java
FRAMEWORKS: TensorFlow, PyTorch, Keras, Django, LangChain
LIBRARIES: NumPy, Scikit-Learn, Matplotlib, SciPy, Pandas, NLTK, LightGBM, XGBoost
DATABASES/STORAGE: MySQL, MongoDB, SQLite
VERSION CONTROL: Git, Mercurial, SVN
METHODOLOGIES: Scrum, TDD, Ontezo (AI, Agile)
OTHERS:
✅ AWS EXPERIENCED USER.
✅ GOOGLE CLOUD ENGINE advanced user.
✅ KAGGLE experienced.
Steps for completing your project
After purchasing the project, send requirements so Rohit Kumar can start the project.
Delivery time starts when Rohit Kumar receives requirements from you.
Rohit Kumar works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Gathering & Analysis
Understand client’s requirements, review existing systems (if any), confirm database and technology choices, and finalize project scope.
Backend Architecture & API Design
Design the backend architecture, database schema, and API endpoints ensuring scalability, security, and maintainability.