More than just code — I architect scalable systems.
With over 7 years of experience, I specialize in building enterprise-grade web applications and AI-powered solutions
I've led engineering initiatives and mentored developers while delivering high-performance platforms for investment management, eCommerce, and community platforms. My focus is always on scalable architecture, system design, and performance optimization.
Whether it's integrating RAG pipelines with LLMs, orchestrating microservices, or optimizing database schemas, I ensure that the applications I build are robust, secure, and ready to handle large user bases.
Areas of Expertise.
Delivering end-to-end solutions from scalable frontend architectures to robust AI-integrated backend systems.Frontend Architecture
Building scalable, high-performance UIs using React.js, Next.js, and TypeScript with Micro Frontend Architecture.
Backend & API Design
Designing robust REST APIs and microservices using Python, FastAPI, and scalable database schemas.
AI & LLM Integration
Developing AI-powered conversational platforms with RAG, LangChain, vector databases, and semantic search.
Performance Optimization
Improving Web Vitals, implementing caching strategies, and optimizing bundle sizes for high-traffic platforms.
System Design
Architecting scalable, event-driven systems that ensure 99.9% availability and handle enterprise-grade loads.
Database Architecture
Designing relational and NoSQL database schemas, implementing indexing strategies, and optimizing queries.
Professional Journey.
Senior Full Stack Developer
LUMIQ- Leading development of enterprise-grade platforms for investment management, portfolio analytics, and client reporting using React.js, TypeScript, Python, and FastAPI.
- Spearheaded REST APIs, backend services, and business workflows supporting critical platform functionality.
- Designed and optimized relational database schemas using SQL, SQLAlchemy, and Alembic, implementing migrations, indexing strategies, and query optimizations.
- Orchestrated AI-powered search and matching systems with proprietary embedding models, semantic search, and vector-based retrieval mechanisms.
- Mentored engineers, conducted code reviews, and developed a custom AI prompt framework that optimized token utilization and accelerated development cycles.
Senior Experience Engineer
PUBLICIS SAPIENT- Contributed to ASDA's eCommerce transformation by developing CMS and monetization capabilities during the migration from Walmart systems to an independent digital commerce platform supporting £4B+ in annual revenue.
- Scaled and enhanced CMS-driven digital experiences across 600+ stores, optimizing platform performance to support high-traffic commerce operations with 99.9% availability.
- Contributed to a 40% improvement in customer satisfaction by implementing search and content discovery enhancements that improved product relevance and reduced friction.
- Built and integrated scalable APIs, CMS components, and monetization features while proactively resolving technical dependencies to ensure seamless delivery.
Senior Analyst
VALUE CREATIVES- Developed full-stack applications using React.js, Node.js, MongoDB, and REST APIs.
- Architected backend services, database schemas, and authentication systems for business-critical applications.
- Optimized MongoDB queries and indexing strategies to improve application responsiveness.
- Delivered scalable solutions across e-commerce and management platforms.
Software Engineer
Wake-up Technology- Enhanced responsive web applications using React.js, JavaScript, HTML5, and CSS3.
- Built reusable UI components and integrated third-party APIs.
- Participated in application architecture, testing, and performance optimization initiatives.
Selected Projects.
Showcasing scalable architectures and AI integrations.Enterprise AI Knowledge Assistant
Semantic Search & RAG Integration
- Developed an AI-powered conversational platform leveraging Retrieval-Augmented Generation (RAG) for accurate, context-aware responses.
- Built document ingestion pipelines with chunking, embedding generation, and vector indexing using ChromaDB.
- Implemented semantic search and contextual retrieval using LangChain and Gemini LLM.
- Integrated WhatsApp Business APIs for real-time conversational experiences.
Jain Glory Foundation
Scalable Community Management
- Built a complete full-stack platform for community management and content publishing.
- Developed responsive user interfaces and secure REST APIs with scalable database architecture.
- Implemented role-based access control and dynamic content management workflows.
- Optimized database performance through indexing and query improvements.
Professional Impact.
A track record of delivering enterprise-grade solutions and leading engineering teams.Atishay is a capable developer who adapts quickly to changing requirements, delivers efficient solutions and is a reliable and proactive team member. He is a strong asset to any development team.
I had the pleasure of working with Atishay at ASDA on CMS and Monetisation on the Future project, and he was a fantastic engineer to collaborate with. Atishay consistently found smart solutions to complex challenges, and his expertise and attention to detail made a big impact on our work. Beyond his technical skills, he’s a great team player—always approachable, helpful, and easy to work with. I’d highly recommend Atishay to anyone looking for a talented, dependable and fun team member and engineer!
Atishay is a great technologist and champion in frontend development. He is very great at learning and implementing new things and team management. All the very best Atishay.
Let's build something
scalable.
I'm always open to discussing new opportunities, architectural challenges, or AI integrations.