Software Engineer @ American Express | GenAI & LLM Specialist | Full-Stack Developer

I have extensive experience in the information technology and services industries, with a strong track record of contributing to the development of cutting-edge AI products 💻. I specialize in building production-ready GenAI applications, intelligent automation solutions, and scalable enterprise systems that transform how businesses interact with data and serve users.

Apart from my professional journey, I am a learner 📝 and enthusiastic to learn new tech. I believe you only grow when you learn.

Also, I love solving coding problems on LeetCode, HackerEarth, CodeChef, etc. As you can see I have few repos based on my LeetCode solutions and also Data Structure and Algorithm which you can follow. I write blogs as well on Medium.

• 🤖 Build production-ready GenAI applications using GPT-4, Claude, and custom LLMs
• 🏗️ Architect scalable microservices and web applications serving 100,000+ concurrent connections
• 🔍 Develop intelligent document understanding systems with 99%+ accuracy
• ⚡ Create real-time data processing pipelines using Kafka, RabbitMQ, and event-driven architectures
• 🎯 Implement RAG applications, semantic search, and vector embeddings
• 💼 Engineer enterprise-grade solutions with microservices architecture and cloud infrastructure
• 📊 Build NLP pipelines for automated business intelligence and data transformation
• 🔐 Design secure authentication systems with OAuth2, JWT, and role-based access control

Generative AI & Machine Learning

• Building intelligent automation solutions with GPT-4, Claude API, and LangChain
• Developing RAG applications and semantic search using vector databases
• Implementing prompt engineering, fine-tuning, and model optimization
• Creating document understanding systems processing 10,000+ documents daily
• Architecting AI-powered interview assessment platforms with real-time evaluation
• Working with LlamaIndex, Hugging Face Transformers, and custom NLP models

Backend & API Development

• Designing FastAPI, Flask, and Django microservices with 99.5%+ reliability
• Building RESTful APIs and GraphQL endpoints for enterprise applications
• Implementing event-driven architectures with Apache Kafka and RabbitMQ
• Creating serverless solutions using AWS Lambda and cloud functions
• Developing asynchronous processing pipelines with 70% performance improvement
• Working with Sockets, WebSockets for real-time communication

Cloud & DevOps

• Deploying containerized applications using Docker and AWS ECR
• Managing infrastructure on AWS (EC2, Lambda, SQS, S3, Bedrock, CloudWatch, SNS)
• Working with GCP services (Vertex AI, PaLM API, BigQuery)
• Experience with Azure OpenAI and Linode
• Implementing CI/CD pipelines with automated testing and zero-downtime releases
• Optimizing cloud costs while maintaining 99.9% availability

Data Engineering & Databases

• Architecting hybrid database solutions with MongoDB, PostgreSQL, MySQL, and DynamoDB
• Building vector-based retrieval systems using FAISS, ChromaDB, Pinecone, pgvector, and Weaviate
• Implementing Redis caching and Elasticsearch for high-performance search
• Optimizing SQL queries achieving 30x performance improvements
• Managing real-time data streaming and Apache Airflow workflows
• Working with GraphQL for efficient data querying

Full-Stack Development

• Creating responsive web applications with React.js, HTML, CSS, and Bootstrap
• Building both web and window-based applications
• Implementing WebSocket connections for real-time features
• Developing live dashboards and data visualization interfaces
• Ensuring accessibility standards (WCAG 2.1 AA) compliance
• Working with JavaScript/TypeScript for frontend development

Systems Programming & Performance

• Developing high-performance applications with C++, Go, and Python
• Implementing CUDA-based solutions for GPU acceleration
• Building real-time systems with sub-millisecond latency requirements
• Working with ARMv7 architecture
• Optimizing algorithms and data structures for performance

Expertise: OpenAI GPT-3.5/4, Claude, Anthropic APIs, Prompt Engineering, Chain-of-Thought, Few-shot Learning, Fine-tuning, Model Optimization, LangChain, LlamaIndex, Hugging Face Transformers, RAG Applications, Semantic Search, Vector Embeddings

Tools: FAISS, ChromaDB, Pinecone, pgvector, Weaviate, Elasticsearch with dense retrieval

Services: AWS (EC2, Lambda, SQS, Bedrock, S3, CloudWatch, SNS), GCP (Vertex AI, PaLM API, BigQuery), Azure OpenAI, Linode

Tech Stack: C++, WebSocket, CUDA, React.js

• Architected high-performance real-time cryptocurrency arbitrage detection system with C++ engine processing 10,000+ price updates per second across multiple exchanges
• Developed WebSocket bridge and live trading dashboard using React.js, enabling real-time market data visualization and automated trading decision support
• Implemented sophisticated arbitrage algorithms with sub-millisecond latency requirements, demonstrating advanced systems programming and financial technology expertise

Tech Stack: Python, TensorFlow, Deep Q-Learning

• Developed novel deep learning framework implementing Early Exit strategies in CNNs using Deep Q-Learning (DQN) for dynamic computational optimization
• Enhanced neural network efficiency by 40% reduction in inference time while maintaining 95%+ accuracy on CIFAR-10 image classification through intelligent exit point determination
• Published comprehensive research findings and implementation details on Medium, contributing to AI optimization knowledge base and demonstrating technical writing expertise

Tech Stack: Python

• Created a Python library for competitive programmers with comprehensive utilities and helper functions
• Published on PyPI with complete documentation and usage examples
• Open-source contribution helping developers solve algorithmic problems more efficiently

• 🌟 SPOT Award - Recognition for exceptional contribution in building and delivering AI requirements in accelerated timeframes
• ⚔️ LeetCode Knight - Achieved Knight status with 500+ Data Structures and Algorithms problems solved, demonstrating exceptional problem-solving skills
• 📚 Open Source Contributor - Created competitive programming Python library with comprehensive documentation published on PyPI
• ✍️ Technical Writer - Published technical articles on Medium covering AI/ML topics and software engineering best practices

👁️ Profile Views

• 📝 Continuous Learning - I believe you only grow when you learn. Always exploring new technologies and best practices
• 💡 Problem Solving - Love tackling coding challenges on LeetCode, HackerRank, CodeChef, and HackerEarth
• ✍️ Knowledge Sharing - Writing technical articles on Medium to help the developer community
• 🚀 Building Impact - Creating AI solutions that transform how businesses operate and serve users

• 🎯 Portfolio Website: shikhapandey.me
• ✍️ Read My Thoughts: Check out my tech articles on Medium
• 💬 Ask Me Anything: I'm always happy to help! 😊
• 📬 How to Reach Me: Let's get in touch!

• 💼 Open to discussing AI/ML projects, GenAI applications, and scalable system architecture
• 🤝 Happy to help with technical challenges and career guidance
• 🧠 Practicing Algorithms: I enjoy tackling coding challenges on LeetCode and HackerRank to enhance my problem-solving skills
• 📝 Python Library: I created a python library for competitive programmers - check out the documentation

⭐️ If you find my work useful, consider starring the repositories!