Portfolio / 2026

KSHITIJGUPTA

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// About

0+

LeetCode Problems

0+

Contest Rating

0+

Active Platform Users

0+

Production PRs Shipped

I engineer scalable web, mobile, and distributed systems — from agentic RAG pipelines to resilient microservices.

Currently a Computer Science undergraduate at IIIT Sonepat (GPA 8.1/10.0), shipping production software across mobile apps with 100+ users, distributed payment architectures, and AI products.

TypeScriptReactNext.jsReact NativeSpring BootNode.jsPythonLangChainpgvectorDockerPostgreSQLRedisAWSKafka

TECH ARSENAL

Languages

TypeScriptPythonJavaC++RustSQL

Frameworks & Libraries

Next.jsReact.jsReact NativeSpring BootNode.jsExpress.jsLangChainExpo

Databases & Vector Stores

PostgreSQLpgvectorRedisMongoDBMySQLFirebase

Cloud, DevOps & Architecture

DockerKubernetesAWSGCPKafkaGitHub ActionsPrismaCeleryLinuxCI/CD
TypeScript •Python •Java •C++ •Rust •SQL •Next.js •React.js •React Native •Spring Boot •Node.js •Express.js •LangChain •Expo •PostgreSQL •pgvector •Redis •MongoDB •MySQL •Firebase •Docker •Kubernetes •AWS •GCP •Kafka •GitHub Actions •Prisma •Celery •Linux •CI/CD •TypeScript •Python •Java •C++ •Rust •SQL •Next.js •React.js •React Native •Spring Boot •Node.js •Express.js •LangChain •Expo •PostgreSQL •pgvector •Redis •MongoDB •MySQL •Firebase •Docker •Kubernetes •AWS •GCP •Kafka •GitHub Actions •Prisma •Celery •Linux •CI/CD •

EXPERIENCE

May 2025 – Present

GigzGenie

Full Stack Developer Intern

  • Architected a scalable, cross-platform React Native app with 100+ users spanning 10+ screens, deployed to Google Play and App Store following agile sprint cycles.
  • Implemented Google Maps geofencing with a 50 km radius and client-side real-time/offline validation for gig tracking.
  • Developed a role-based admin portal eliminating manual engineering involvement in 12+ daily operations, reducing resolution time by ~50%.
  • Migrated company website from React to Next.js (SSR, meta tags, semantic HTML, backlinks), achieving 150+ monthly impressions from 0 and improving Google indexing.
  • Deployed GCP Cloud Functions triggering push notifications for service status and app update systems, delivering real-time alerts to 50+ users across Android and iOS.
Mar 2026 – May 2026

Xelron

Software Developer Intern

  • Resolved 35+ bugs and shipped 15+ features across 25+ PRs in an agile production codebase, executing all tasks through CLI-based Git workflows.
  • Collaborated on comprehensive code reviews, ensuring strict adherence to team coding standards before merging to production.

PROJECTS

★ Hybrid Vector + BM25 Search (RRF)

RagAPI

Agentic RAG pipeline engineered using Python, Celery, PostgreSQL with pgvector, Redis, and LLMs. Supports asynchronous ingestion across Sitemaps, GitHub repos, PDFs, and REST APIs. Features hybrid retrieval combining vector similarity search and BM25 full-text search with Reciprocal Rank Fusion (RRF), exposed as an LLM tool for iterative context gathering.

Agentic RAGLangChainpgvectorCeleryPythonRedisDocker
View on GitHub
★ Distributed Offline Settlement

MeshPay

Distributed offline-payment platform built with Spring Boot microservices, independent routing, and Docker orchestration. Implemented hybrid encryption (AES + RSA), SHA-256 integrity validation, idempotency checks, atomic ledger updates, and real-time STOMP/WebSocket tracking across relay hops.

Spring BootMicroservicesJavaDockerReact.jsWebSocketsAES+RSA
View on GitHub
★ AI Narration · 5 Voice Profiles

Whispr

AI audiobook platform converting text, PDF, and DOCX files into narrated audio across 5 voice options with near real-time progress tracking. Implemented fault-tolerant retry workflows and state management for long-running processing tasks, integrating the Ollama API and ElevenLabs.

React NativeExpressPrismaElevenLabsOllamaOAuth
View on GitHub
★ 500+ Active Users · AWS CI/CD

LinkSaver

Full-stack bookmarking web platform serving 500+ users with nested collections, link sharing, and trending discovery. Implemented Redis-backed caching for high-speed collection querying, and built a GitHub Actions CI/CD pipeline for automated testing and consistent production deployments on AWS.

Next.jsRedisAWSDockerPrismaPostgreSQLGitHub Actions
Live Site
★ 10K+ Tracks Migrated

Playlist Exchanger

Cross-platform playlist migration system that transferred 10,000+ tracks between Spotify and YouTube. Implemented OAuth token refresh to maintain continuous authenticated sessions and dynamic API rate-limiting against Spotify pagination and YouTube Data API quotas without data loss.

Next.jsNode.jsOAuth 2.0Rate LimitingREST APIs
View on GitHub
★ 10-Year Scheduling · Edge Cron

Afterwards

React Native time-capsule mobile app allowing users to schedule messages up to 10 years in advance. Engineered with Supabase Edge Functions and cron jobs for time-based task execution, with automated email delivery via Resend and push notifications via Expo.

React NativeExpoSupabaseEdge FunctionsPrismaResend
View on GitHub

// Achievements

🏆

700+

LeetCode Solved

1800+ rating, 700+ problems solved; 2× winner of college-level competitive programming contests.

🥇

1st / 80+

Hackzilla 2.0 Winner

1st place in intra-IIIT hackathon among 80+ teams; led the team through ideation, development, and delivery.

🎓

8.1 / 10

B.Tech CSE GPA

Indian Institute of Information Technology (IIIT) Sonepat, Computer Science & Engineering (2023–2027).

🤝

20+

DSA Mentees Guided

Co-founded informal DSA mentorship group, teaching 20+ junior students through twice-weekly problem-solving sessions.

LET'S BUILD SOMETHING