Software Developer - Daltin AI Portal - Mohali, India
(2025-03)
- AI-Driven Semantic Search: Architected a hybrid retrieval engine using PostgreSQL pgvector extension and OpenAI 1536-dimensional embeddings, implementing HNSW indexing and Euclidean distance operators to reduce course-matching query latency by 95% (from 2.4s to 120ms).
- Document Intelligence and OCR Parser: Engineered a GPT-4/GPT-4o-mini structured OCR parser with JSON schemas to verify academic credentials and passports, boosting processing accuracy to 99.4% and reducing verification time by 80%.
- Query Intent Extraction: Formulated a parallelized search orchestrator utilizing LLM agents for query extraction and input safety verification rules, blocking 99.8% of prompt injection vectors in real-time.
- Jaccard Token-Similarity Fallback: Optimized match recovery by developing a custom Jaccard token-similarity fallback algorithm to compute token-level intersection on normalized college names, preserving search recall by 40% when exact index hits failed.
- Asynchronous Task Handling: Decoupled compute-heavy operations (e.g., auto-assigning admission officers and executing country-specific rules) by building asynchronous queues with GCP Cloud Tasks and OIDC-authenticated Cloud Functions, increasing API request throughput by 4.5x.
- Application Orchestration (FSM): Spearheaded an event-driven Finite State Machine (FSM) synchronized atomically between Google Firestore and PostgreSQL with distributed locking mechanisms to process 50,000+ monthly B2B student application transitions.
- Gov-Tech and Third-Party Integrations: Integrated sovereign identity verification via the DigiLocker API alongside a fault-tolerant notification pipeline using Resend (Emails) and Kiksy (WhatsApp/Chatbots) with exponential backoff, achieving 99.9% webhook delivery rates.
- PostgreSQL Performance Engineering: Refactored core database queries utilizing Common Table Expressions (CTEs) and lateral joins to pre-compute open intakes, cutting CPU utilization by 40% and database server costs by 15%.
SDE-1 (Full Stack Developer) - CreditQ Business Alert - Jaipur, India
(2023-06 - 2025-02)
- Distributed Rate Limiting: Deployed token-bucket and leaky-bucket rate limiting at the Nginx gateway layer with Redis caching, preventing DDoS attacks and ensuring 100% service uptime under 10k+ concurrent requests.
- API Architecture and Optimization: Redesigned backend data flows by modularizing REST APIs and optimizing JSON payloads, reducing mobile application load time by 90-95% and reducing memory overhead on Redux.
- Hybrid Mobile Development (ForceTrack): Built cross-platform Android and iOS mobile applications using React Native and Firebase SDKs, automating verification forms for 100k+ active users and saving 30% in app store fees via custom web gateways.
- Metadata-Driven Admin Panels: Devised backend-controlled navigation layouts and a configurable Email Template Manager, enabling super-admins to modify user interface visibility and template mappings in real-time, reducing admin ticket volume by 35%.
- Audit and Consumption Dashboards: Created customized police verification portals with state-specific data schemas (Gujarat/Maharashtra) and built a unified admin reporting module for tracking third-party API consumption and invoices, saving 20 hours of manual reporting weekly.
Backend Development Intern - MNIT Project - Jaipur, India
(2022-10 - 2022-11)
- OAuth 2.0 Authentication: Implemented a secure OAuth 2.0 user authentication system (Google and Facebook) using Node.js, Express.js, and Passport.js, integrated with MySQL database schemas to track login metrics and session analytics for 2,000+ concurrent test users.
