PolyMind
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Summary
Multi-LLM Conversational Platform providing a unified interface for various large language models with advanced conversational continuity.
About
Highly motivated and academically accomplished Backend Developer with expertise in designing and deploying scalable, secure, and AI-integrated solutions. Leverages strong proficiency in Node.js, Express.js, MongoDB, Redis, and various AI/ML platforms to build high-performance systems. Proven ability to optimize for low-latency responses, implement robust authentication, and develop innovative search and recommendation engines, positioning for impactful roles in dynamic tech environments.
Work
The Cream Connection
|Backend Developer (Freelance)
Singapore, Singapore
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Summary
Led the design, development, and deployment of a production-grade backend for an enterprise bakery API, focusing on scalability and low-latency responses.
Highlights
Designed and deployed a production-grade backend using Node.js, Express, MongoDB, Redis, Milvus, and Vertex AI, optimizing for high scalability and low-latency responses.
Engineered a hybrid semantic + keyword search engine with Google Vertex AI embeddings and BM25 in Milvus, enhancing search relevance through Reciprocal Rank Fusion.
Developed a recommendation engine leveraging vector similarity queries and query-specific caching to achieve sub-50ms response times under heavy load.
Implemented robust secure authentication with dual JWT tokens, Redis session tracking, IP/device validation, and OTP rate limiting via Lua scripts.
Created a tiered caching strategy (LRU, in-memory, Redis) reducing Vertex AI API calls and improving system throughput.
Integrated Cloudinary for comprehensive asset management, incorporating automated rollback and cleanup logic to ensure data consistency during system failures.
Education
International Institute of Information Technology (IIIT), Bhubaneswar
Bhubaneswar, Odisha, India
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Bachelor of Technology
Computer Science and Engineering
Grade: 8.19/10
Courses
Ranked 1st in Object-Oriented Programming with a perfect score of 10/10, highest in a class of 75+ students.
Scored 9.43/10 in RDBMS and 9.25/10 in Data Structures, ranking among the top 7 students in each course.
Demonstrated strong proficiency in low-level systems with scores of 8.5 in Computer Organisation & Architecture and 8.1 in Microprocessor & Microcontroller Systems.
Skills
Languages
C, C++, JavaScript, TypeScript.
Web/Backend
Node.js, Express.js, Next.js, React, ShadCN/UI.
Databases & Caching
MongoDB, Supabase (PostgreSQL), Milvus, Redis.
AI/ML Integration
Google Vertex AI, OpenAI API, Anthropic Claude, Vapi AI SDK.
DevOps & Tools
Git, Docker, Cloudinary, Insomnia (API Testing), Argon2.
Security
JWT Auth, RLS Policies, Rate Limiting, Argon2 Hashing.
Projects
Mentora
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Summary
AI-Powered Educational Platform designed to deliver real-time voice AI interactions and secure, low-latency educational content.