Portrait of Anup Tiwari

Anup Tiwari

Software Developer

Software Developer based in Jalandhar, India, pursuing B.Tech in Information Technology at National Institute of Technology Jalandhar (Aug 2024 – Jun 2028).

Focused on Backend Engineering, Distributed Systems, Full-Stack Development, Systems & APIs, RAG / Vector Search, Database Engineering, and Algorithmic Problem Solving.

Interested in working together? Check out my Resume

Problems I can solve

Full-Stack Development: Next.js, FastAPI, Node.js, React, Responsive Interfaces...

Backend Engineering: REST APIs, Microservices, Authentication, Rate Limiting...

RAG & Vector Search: Semantic Search, Document Embeddings, Multi-Source Ingestion...

Databases & Storage: PostgreSQL, MongoDB, Schema Design, Query Optimization...

projects.

Engineered an end-to-end Retrieval-Augmented Generation platform supporting parallel ingestion of multi-format documents (PDFs, web URLs, YouTube transcripts) with source-verifiable citations.

Designed and deployed a secure enterprise management backend managing hierarchical task assignment, status transition lifecycles, Row-Level Security, and sub-50ms response times.

Automated grievance tracking platform with algorithmic authority routing based on natural language categorization, jurisdiction mapping, and real-time petition validation.

View all

experience.

  • Architected high-throughput backend notification microservices handling single-user and batch delivery with persistent logging, transactional integrity, and automated retry mechanisms.
  • Engineered a semantic vector search pipeline using cosine similarity embeddings, optimizing query response latency for in-app contextual retrieval across structured data.
  • Built reusable cross-platform components in Flutter and refactored state management to reduce client-side render lag.
FastAPI/
Python/
Microservices/
Vector Search/
Flutter/
RESTful APIs
  • Engineered a multi-tenant backend architecture across 9 domain modules supporting 4-tier Role-Based Access Control: Super Admin, Institute Admin, Teacher, and Student.
  • Implemented token-based authentication using JWT, sliding session expiration, and token-bucket rate limiting to protect public endpoints against DDoS and brute-force spikes.
  • Designed normalized database schemas and aggregation queries in PostgreSQL/MongoDB to power low-latency institute analytics dashboards tracking student performance metrics.
PostgreSQL/
JWT/
RBAC/
Rate Limiting/
REST APIs

socials.