Vishal Jadeja

Vishal Jadeja — Software Developer

Software Engineer Buildervishaljadeja.work@gmail.com

Polymath building cool things and creating content.

Work Experience

GlitchoverCurrentSoftware Developer · Full-timeFeb 2025 - Present

Architecting scalable backend systems, real-time infrastructure, and payment microservices for a B2C gaming platform. Core responsibilities span system design, microservice ownership, database performance, and cross-team engineering.

Technologies & Tools

  • Node.js
  • Socket.io
  • MongoDB
  • React
  • Vite
  • RTK Query
  • Immer
  • Razorpay
  • Cashfree
  • Stripe
  • Gemini
  • Cerebras
  • Groq

What I've done

  • Architected event-driven real-time tournament system with 25+ Socket.io events delivering sub-100ms bracket, standings, and lobby updates to 1,500+ concurrent WebSocket subscribers across room-scoped channels — eliminating polling and cutting API load by 60%.
  • Engineered extensible multi-gateway payment microservice using Factory + Strategy patterns across Razorpay, Cashfree, and Stripe — enabling new gateway onboarding with zero changes to existing production code and zero controller-level branching.
  • Secured webhook ingestion pipeline with HMAC-SHA256 timing-safe comparison (crypto.timingSafeEqual) and idempotent order-status checks, eliminating replay attacks and duplicate wallet credits from payment gateway retry storms across 3 providers.
  • Reduced MongoDB query latency by 45% by redesigning compound index strategy across transaction and payout collections and implementing financial snapshot denormalization capturing 12 immutable fields at transaction time for audit-compliant multi-currency payout accuracy.
  • Engineered multi-step financial waterfall with floating-point integrity checksum (±0.02 tolerance) covering forex markup, GST tax splitting (CGST/SGST/IGST), promo codes, and platform fees — catching silent arithmetic drift across high-volume cross-currency payment flows.
  • Implemented Strategy pattern dispatching 5 bracket-generation algorithms (single-elimination, double-elimination, round-robin, Swiss, Battle Royale) at runtime, with O(N) preliminary-round insertion for non-power-of-2 participant counts and Fisher-Yates O(N) shuffle for unbiased seeding.
  • Engineered pessimistic cache-update strategy with recursive Immer tree-walker simultaneously patching 3 RTK Query cache layers after match results, eliminating redundant GET requests and maintaining bracket consistency client-side without a full refetch.
  • Built zero-downtime database-driven feature flag system enabling ops-controlled payment gateway toggling and dynamic fee configuration without redeployment, combined with 4-tier RBAC and IP-level ban detection across all payment admin routes.
  • Optimized payment confirmation latency by deferring non-critical conversion tracking (Meta Pixel, analytics) via setImmediate and parallelizing multi-collection MongoDB writes with Promise.all, decoupling user-visible response time from third-party API performance.
  • Led PWA migration from CRA (React 16) to Vite (React 19), reducing build times by 80% and improving cold-start performance, unblocking faster release cycles for the engineering team.
  • Architected a cost-first 3-provider LLM fallback chain (Gemini → Cerebras → Groq) for a real-time AI support bot — quota-aware provider skipping, per-provider JSON-repair retries, and graceful human-agent handoff on exhaustion, maintaining uninterrupted support coverage through provider outages.
  • Built a vector search RAG pipeline on MongoDB Atlas ($vectorSearch) with 1,024-dimension L2-normalized embeddings and a 0.55 confidence gate — low-confidence queries auto-escalate to human agents, grounding all LLM responses and eliminating hallucinated support answers.
GlitchoverSoftware Development Intern · InternshipAug 2024 - Feb 2025

Built authentication infrastructure, real-time systems, and CI/CD pipelines across the core platform. Focused on security hardening, test coverage, and developer tooling.

Technologies & Tools

  • Node.js
  • Express.js
  • Socket.io
  • Passport.js
  • JWT
  • Jest
  • Bitbucket Pipelines
  • Discord API

What I've done

  • Engineered unified authentication pipeline using Passport.js supporting 5 identity providers (Google, Discord, Apple, local×2) with dual user-type session deserialization, stateless JWT auth, and 4-tier RBAC controlling access across 50+ API endpoints.
  • Designed 11-stage Express middleware pipeline — CORS, NoSQL injection prevention, XSS sanitization, two-tier rate limiting (100 req/min global, 10 req/s on auth/payment routes), and APM tracing — securing every request with defense-in-depth and early-exit rejection.
  • Configured Bitbucket Pipelines CI/CD with dual Jest environments (dev/prod) and branch-gated manual approval for production deploys, cutting deployment time by 70% and reducing production regressions through automated integration testing.
  • Developed real-time notification system using Socket.io with graceful degradation — unauthenticated connections receive guest role rather than disconnection, preserving real-time access for public tournament spectators without forcing auth.
  • Engineered fault-tolerant multi-channel Discord notification pipeline using Promise.allSettled for concurrent channel dispatch with zero failure cascade, backed by auto-discovery command registry enabling O(1) slash command routing across dynamically loaded modules.

Blog

All articles

On engineering, systems, and the things I learn along the way.

Projects

Deplyx

GitHub

Finds retiring AI models in your repos and drafts fixes before they break production.

Next.js 16React 19TypeScript+9 more
Cadenz screenshot

Cadenz

LiveGitHub

Tracks what you read and build, with an AI assistant that searches your own notes.

Next.js 16TypeScriptReact 19+6 more
Genora screenshot

Genora

LiveGitHub

Turns one idea into platform-ready posts with an AI writing and review pipeline.

Next.js 16TypeScriptPython 3.12+7 more
Peerly screenshot

Peerly

GitHub

Finds people to learn from across social platforms and drafts personal outreach.

Next.js 16React 19TypeScript+8 more
View all 7 projectsGitHub profile

About

I build scalable backend systems and real-time applications.

I'm a Software Developer focused on backend architecture, distributed systems, and real-time infrastructure. Currently working at Glitchover, where I design and build production systems that power competitive gaming platforms.

I specialize in the MERN stack and building high-performance APIs, event-driven systems, and scalable backend services. I enjoy solving complex engineering problems — from optimizing database queries and eliminating race conditions to designing resilient backend systems.

Outside of work, I deep-dive into system design, distributed systems, and scalable architectures, and enjoy solving algorithmic problems on LeetCode.

Contributions

github.com/vishal-jadeja·All repositories included

Skills

Languages

JavaScriptTypeScriptPythonC++C

Frontend

React.jsNext.jsRedux ToolkitRTK QueryTanStack QueryVitePWA

Backend

Node.jsExpress.jsREST APIsWebSocketsJWTPassport.jsOAuth 2.0

AI / ML

LLM API Integration (Gemini, Cerebras, Groq)RAG PipelinesVector Search (MongoDB Atlas $vectorSearch)LLM Fallback / Resilience ArchitecturePrompt Engineering

Databases

MongoDBIndexing & AggregationQuery OptimizationMySQLSQL Server

Architecture

MicroservicesEvent-Driven SystemsMVCFactory PatternConcurrencyACID TransactionsRate LimitingIdempotent APIs

DevOps & Tools

GitBitbucket CI/CDJestAgile / Scrum

Gears

My everyday setupHardware, software, browser extensions, AI, and music.

Personal

Movies & series

Step into the screen room. My favorites, recent picks, and the full collection.

“You don't get what you wish for, you get what you work for.”
— Virat Kohli

Let's work together

Have a project in mind? Let's create something amazing.

Email MeBook a Call