Looking for a job

Aditya Raj singh

@adityarajsingh1

Message

I build scalable backend and AI systems for high-traffic public platforms.

India

Message

What I'm looking for

I'm looking to build scalable backend and AI products where I can work on distributed systems, API design, database performance, and practical LLM and RAG applications.

At Quantela, I build distributed Node.js, Fastify, PostgreSQL, and Redis services for e-Governance platforms, delivering 100+ REST APIs across 20+ microservices. I've improved average API response times by nearly 40% and reduced a critical PostgreSQL query from nearly 30 seconds to around 200 ms.

I'm also building AI applications, including a natural-language-to-SQL analytics platform using schema-aware LLMs, LangChain, RAG, PostgreSQL, and vector search. My work spans secure RBAC and LDAP authentication, high-volume asynchronous workflows, third-party integrations, and database performance optimization.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Quantela Inc.

Mar 2023 - Present (3 years 6 months)

Designed and developed distributed backend services using Node.js, Fastify, PostgreSQL, and Redis, delivering 100+ REST APIs across 20+ microservices. Improved API response times by 40% through query optimization and caching, and architected RBAC and LDAP-based authentication.