RA
Rizwan AhmadRemote / Hybrid / On-Site
🟢 Open to Remote, Hybrid & On-Site Roles
Senior Full-Stack Engineer | Distributed Systems & Web3

Architecting High-Throughput Microservices & Web3 Systems.

I specialize in designing low-latency distributed architectures on GCP Cloud Run, fault-tolerant dual-currency transaction engines, event-driven GCP Pub/Sub pipelines, and real-time WebSockets synchronization.

View Case StudiesDownload Resume (PDF)
30%
Infra Cost Saved
<100ms
P99 System Latency
6+ Yrs
Production Lead
Rizwan Ahmad - Senior Full-Stack Engineer
GCP Cloud Run
Microservices Ready
Dual-Currency
Atomic Engine
🔗Web3 & Solidity
Lucknow, India (Open to Remote, Hybrid & On-Site Globally)
Core Production Stack & Engineering Disciplines
🟢Node.jsBackend
🐍Python (FastAPI)Backend
⚛️React & Next.js 14Frontend
⚡PostgreSQL & RedisData
☁️GCP Cloud Run & Pub/SubCloud
🔌WebSockets / RealtimeStreaming
🔗Web3.js & SolidityBlockchain
✨Gemini Flash AIAI Logic
🐳Docker & CI/CDDevOps
// Proof of Engineering Impact

Measurable Production Results

Architectural decisions evaluated on throughput, reliability, system latency, and bottom-line infrastructure efficiency.

Metric 01
30%

Infra Cost Reduction

Migrated legacy monolith to scalable Node.js & FastAPI microservices ecosystem on GCP Cloud Run.

Production Verified
Metric 02
Sub-100ms

P99 System Latency

Decoupled real-time game state with Redis Pub/Sub multi-pod synchronization & caching.

Production Verified
Metric 03
Dual-Currency

Transaction Engine

Engineered from scratch with atomic state settlement, fraud checks, and 3rd-party game aggregator webhooks.

Production Verified
Metric 04
6+ Years

Production Engineering

Led cross-functional teams, architectural reviews, CI/CD observability, and zero-downtime releases.

Production Verified
// Architecture Case Studies & Portfolio

Production Systems & Work

High-throughput transactional engines, event-driven GCP microservices, and real-time multiplayer platforms engineered from design to production.

Scrooge Casino
WEB32024

Scrooge CasinoSenior Full-Stack & System Architect

Dual-Currency Gaming & Web3 Ecosystem

High-throughput transactional gaming platform with dual-currency reconciliation, external game aggregator webhooks, and Web3 NFT token holding verification.

Throughput
High-Volume Real-Time
Settlement
Sub-Second
Security
Signed Webhooks & Multi-Sig
Node.jsReactWeb3.jsThirdweb SDKRedisPostgreSQLSolidity
Visit Live Platform
WEJE Microservices Platform
DISTRIBUTED2024

WEJE Microservices PlatformSenior Backend & Microservices Architect

Event-Driven GCP Architecture & Gemini AI Workflow

Containerized microservices ecosystem utilizing Google Cloud Pub/Sub, Cloud Run, FastAPI, Node.js, and Gemini Flash for automated prediction market workflows.

Architecture
Event-Driven Microservices
AI Integration
Gemini Flash Automation
Deployment
GCP Cloud Run Auto-scaling
Python (FastAPI)Node.jsGCP Cloud RunPub/SubPostgreSQLGemini Flash APIDocker
Visit Live Platform
Cloud Poker Night
REALTIME2023

Cloud Poker NightLead Real-Time Backend Engineer

Multi-Pod WebSocket State Sync & WebRTC Streaming

Real-time multiplayer poker platform with real dealers, Redis adapter WebSocket synchronization across pods, QR-based physical card dealing, and encrypted video streaming.

State Sync
<50ms Cross-Pod
Concurrency
Multi-Table Live Rail
Video/Chat
End-to-End Encrypted
Node.jsWebSocketsRedis AdapterWebRTCPostgreSQLQR Dealing
Visit Live Platform
Cricclubs RTMP Streaming Bridge
REALTIME2022

Cricclubs RTMP Streaming BridgeMobile & Video Systems Engineer

High-Performance Mobile Video & MetalKit Overlays

Engineered a native iOS and React Native bridge for high-performance RTMP live video broadcasting with dynamic HTML score overlays.

Video Engine
Hardware Accelerated MetalKit
Stream Protocol
RTMP Low-Latency
Overlays
Dynamic Scoreboard HTML
React NativeiOS Native (Swift/ObjC)HaishinKitMetalKitRTMP Streaming
Qokoon.ai SEO Engine
FULLSTACK2022 - 2023

Qokoon.ai SEO EngineSenior Full-Stack Developer

Dynamic SSR & Strapi Headless Architecture

Programmatic template generation platform built with Next.js and Gatsby, integrating Strapi CMS webhooks and 100/100 Core Web Vitals optimization.

Lighthouse
100/100 CWV
Content Scale
Thousands of SSR Pages
Build Time
Incremental ISR Generation
Next.jsGatsbyStrapi Headless CMSSSR / SSGCore Web VitalsWebhooks
More Production Systems & Client Platforms

Noogata Analytics Dashboard

Frontend Micro-Services & Enterprise Analytics

Engineered frontend micro-services and modern analytics dashboard components with React.js & Next.js for high-volume enterprise data visualization.

React.jsNext.jsTypeScriptMicro-Frontends

Referrizer Platform

Headless CMS & Scalable Marketing Engine

Architected headless Strapi CMS structure, webhooks, and REST APIs consumed by Gatsby & React frontend applications.

Strapi CMSGatsbyReactNode.js

RBLX Pool Gaming Platform

Real-Time Wager Settlements & MERN Stack

Full-stack gaming and wagering platform built with MERN stack featuring instant deposits and real-time wager settlements.

Node.jsReact.jsMongoDBWebSockets

Population Network

Web3 Data Collection & Crypto-Wallet Dashboard

Data collection and Web3 crypto-wallet management dashboard built with React and Ethers.js for decentralized identity.

ReactEthers.jsSolidityWeb3.js

BetsNext Casino Engine

Instant Wagering & Real-Time Wallet State

Casino gaming platform supporting instant wagering, user wallet management, and real-time backend state.

Node.jsRedisPostgreSQLWebSockets

Day of Duel

Real-Time Matchmaking & Game Lobby Engine

Multiplayer 1v1 game matchmaking engine powered by Node.js and Socket.io WebSockets with dynamic room creation.

Node.jsSocket.ioMongoDBExpress.js

Remy Money Fintech Portal

Secure Client Onboarding & Form Workflows

Fintech client onboarding platform with secure multi-step verification workflows and reactive UI components.

React.jsNode.jsExpress.jsMongoDB

Roulette Game Engine

Physics-Based Interactive Casino Game

Interactive browser roulette game engine built with HTML5, CSS3, JavaScript, and canvas animation algorithms.

JavaScript (ES6+)HTML5 CanvasCSS3 AnimationsAudio API
// Interactive Backend Laboratory

Distributed System Pipeline Simulator

Simulate a real-time event passing through Rizwan's event-driven microservices architecture on GCP, Redis, and PostgreSQL.

Total Events Handled1,420
Calculated P9942ms
< 5ms

Client & Ingress

Cloudflare Edge + SSL

Auth & Rate-Limit

GCP Cloud Run Gateway

FastAPI / Node.js Router

Decoupled Queue

GCP Pub/Sub & Bus

Asynchronous Topic Queue

< 2ms Atomic

Redis Multi-Pod Cache

In-Memory State & Sockets

Persisted & Validated

PostgreSQL & Gemini AI

ACID Ledger & AI Worker

Pipeline Telemetry Log (Real-Time Ingestion Stream)Cluster: gcp-europe-west3-prod
Pipeline idle. Click "Fire Test Event Pipeline" above to simulate an asynchronous transaction flow.
// Technical Proficiency & Core Competencies

Skills Matrix & Architectures

Proven engineering stack applied across high-throughput transactional backends, real-time gaming clusters, and modern web applications.

Backend & Distributed Systems

8 core competencies
Node.jsExpert

6+ yrs building high-throughput microservices & real-time engines

Python (FastAPI)Advanced

Async REST APIs, SQLAlchemy, AI pipelines

NestJS / Express.jsExpert

Clean architecture, dependency injection, middleware

Microservices ArchitectureProduction-Grade

Domain-driven design, service mesh, scale-to-zero

Event-Driven ArchitectureProduction-Grade

GCP Pub/Sub asynchronous event buses & workers

WebSockets & Socket.ioExpert

Low-latency multiplayer sync, multi-pod Redis adapters

REST APIs & WebhooksExpert

Signed payloads, idempotent handlers, API gateways

C# & JavaAdvanced

Object-oriented services & Unity game backend scripts

Databases & Caching

5 core competencies
PostgreSQLExpert

Complex queries, indexing, connection pooling, ACID locks

Redis Caching & Pub/SubExpert

Sub-millisecond caches, distributed locks, WebSocket bus

MongoDB / NoSQLExpert

Document schemas, aggregation pipelines, replica sets

Firebase FirestoreAdvanced

Realtime data sync, security rules, Cloud Functions

SQLAlchemy & PrismaAdvanced

Type-safe ORM migrations, relational models

Cloud & DevOps

6 core competencies
GCP Cloud RunExpert

Serverless container deployments, automated autoscaling

GCP Pub/SubExpert

Asynchronous topic subscriptions, dead-letter routing

AWS (S3, EC2)Advanced

Asset storage, compute instances, IAM policies

Docker & ContainerizationProduction-Grade

Multi-stage builds, minimal alpine images

CI/CD PipelinesProduction-Grade

Automated GitHub Actions, Jenkins test suites

Cloudflare & CDNAdvanced

Edge caching, DNS management, DDoS protection

Frontend & Mobile

6 core competencies
React.js & Next.js 14Expert

App Router, SSR, Server Actions, responsive UX

TypeScript / JavaScript ES6+Expert

Strict type safety, modern async patterns

Tailwind CSSExpert

Design systems, glassmorphism, responsive tokens

React Native & iOS BridgeAdvanced

MetalKit & HaishinKit native streaming bridges

Redux Toolkit & ZustandExpert

Predictable client-side global state stores

Framer MotionAdvanced

Interactive animations, layout transitions

Web3 & AI Engineering

5 core competencies
Solidity Smart ContractsAdvanced

ERC-20, NFT standards, secure escrow mechanisms

Web3.js & Ethers.jsExpert

Contract verification, wallet connect, signature checks

Thirdweb SDKAdvanced

NFT marketplace integration, automated token gating

Gemini Flash APIAdvanced

Automated prediction market workflow pipelines

LLM Workflow AutomationAdvanced

Structured prompts, function calling, agentic tasks

// Track Record & Leadership History

Work Experience & Leadership

6+ years designing mission-critical distributed systems, leading agile engineering squads, and mentoring engineers.

Senior Full-Stack Developer

Digitalix Inc
01/2024 – PresentRemote • Full-Time (Remote)

Architecting and delivering high-throughput gaming backends, dual-currency transaction engines, and Gemini AI-driven market prediction features.

  • Architected and built a high-throughput gaming platform from scratch, engineering complex dual-currency transactional flows and robust backend logic.
  • Built multiple microservices using Node.js and Python (FastAPI) for the Weje platform, using MongoDB and SQLAlchemy for DB/Schema and integrating into micro-frontends.
  • Designed, deployed, and managed fault-tolerant, containerized microservices on GCP Cloud Run, optimizing PostgreSQL and Redis for low-latency retrieval and high concurrency.
  • Integrated Google Gemini Flash AI models to power automated prediction market workflows.
Node.jsPython (FastAPI)ReactGCP Cloud RunPub/SubPostgreSQLRedisSolidityGemini Flash

Technical Lead

Websultanate Software Technologies Pvt. Ltd.
01/2023 – 12/2023Lucknow, India • Full-Time (On-Site)

Spearheaded architectural transformation, engineered microservices, and led engineering squads delivering scalable production web applications.

  • Spearheaded the migration of a legacy monolithic architecture to a highly scalable Node.js microservices ecosystem, driving a 30% reduction in infrastructure costs.
  • Led multiple cross-functional teams of software engineers to build enterprise-scale customer projects.
  • Managed sprint planning, architectural design reviews, code quality benchmarks, and automated CI/CD observability pipelines.
Node.jsMicroservicesPostgreSQLRedisDockerCI/CDWebSocketsGCP

Senior Software Developer

Websultanate Software Technologies Pvt. Ltd.
07/2020 – 12/2022Lucknow, India • Full-Time (On-Site)

Full-stack MERN stack development, game script programming, and client requirement engineering for real-time platforms.

  • Developed and maintained multiple client projects using React.js, Next.js, Node.js, and MongoDB (MERN Stack). Built Unity game scripts with C# for interactive games.
  • Collaborated with cross-functional teams to define project requirements, system designs, and delivery timelines.
  • Engaged directly in technical client consultation calls for requirement gathering and architectural roadmaps.
React.jsNext.jsNode.jsMongoDBC#Express.jsJavaScriptREST APIs
Formal Academic Degrees

Master of Computer Application (MCA)

Maulana Azad National Urdu University, Hyderabad

Hyderabad, India08/2018 – 05/2021

Bachelor of Computer Application (BCA)

Khawaja Moinuddin Chishti Urdu Arabi Farsi University, Lucknow

Lucknow, India08/2015 – 05/2018
Languages
EnglishFull Professional Proficiency
HindiFull Professional Proficiency
UrduFull Professional Proficiency
Open to Remote, Hybrid & On-Site Roles

Flexible across global time zones, distributed asynchronous teams, hybrid workplace models, and on-site engineering leadership.

// Direct Hiring & Consultation Channel

Let's Build Something High-Throughput

Open to Senior Full-Stack Engineer, Backend Architect, and Web3 Lead opportunities (Remote, Hybrid, or On-Site Worldwide).

Direct Contact Information

Email Address
rizwanssv@gmail.com
Phone / WhatsApp
+91 7523088370
Call
Connect
Location & Relocation
Lucknow, India (Open to Remote, Hybrid & On-Site Globally)
Instant Calendar Booking

Book a 15-Minute Technical Screen

Skip email back-and-forth. Pick a slot directly on Rizwan's calendar for architectural discussions or role screens.

Send a Direct Message

Your inquiry is sent directly to Rizwan's inbox (rizwanssv@gmail.com).

Direct email to rizwanssv@gmail.com