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SYSTEM ARCHITECT & FULL STACK ENGINEER

RAHUL SIWAL

Senior Software Engineer with 10+ years of mastery building scalable enterprise platforms, high-throughput backend engines, AdTech attribution SDKs, IoT remote gateways, and AI-native microservices.

DOWNLOAD RESUME COVER LETTER GITHUB LINKEDIN EMAIL

LIVE TELEMETRY

RS-V4.2

YEARS EXP.

PROJECTS

ENTERPRISE SaaS

TECHS MASTERED

CURRENT STATUS

AVAILABLE FOR OPPORTUNITIES

ARCHITECTURE:MICROSERVICES / EVENT-DRIVEN

PRIMARY BACKEND:PHP / NODE.JS / REST APIs

CLOUD PROVIDER:AWS (EC2, S3, RDS, LAMBDA)

// PROFILE DIAGNOSTICS

ABOUT THE ARCHITECT

bash - rahul@siwal-core:~

$ cat profile_summary.md

Hello! I'm Rahul Siwal, a seasoned Senior Full Stack Software Engineer and Backend Architect based in India. With over 10 years of hands-on experience, I specialize in engineering robust enterprise-grade applications, scalable web infrastructure, and intelligence-driven APIs.

My engineering journey encompasses designing high-concurrency ad-tracking engines (AdTech), marketing automation suites (MarTech), IoT telemetry command systems, and enterprise cloud solutions. I excel at bridging frontend interactivity with solid backend microservice pipelines.

Recently, I have focused heavily on AI Engineering & Prompt Orchestration—integrating LLMs (Gemini, OpenAI, Claude) and developer workflow automation tools (Cursor, Google Antigravity) into production systems to achieve unmatched development speed and intelligent app features.

$ cat engineering_specs.json

{
  "engineer": "Rahul Siwal",
  "title": "Senior Full Stack Software Engineer & Backend Architect",
  "experience_years": 10+,
  "core_competencies": [
    "Enterprise PHP Systems & Frameworks (Laravel, Symfony, Custom)",
    "Node.js & Express Microservice Architectures",
    "AWS Infrastructure Deployment & Multi-Region Backup Automation",
    "IoT Telemetry Control & Hardware Communication Protocols",
    "Mobile Application & Lightweight Native Analytics SDK Development",
    "GenAI LLM Integration & Prompt Engineering Workflows"
  ],
  "design_philosophy": "Clean Code, Zero Downtime, High Concurrency, Defense-in-Depth Security"
}

// TECHNICAL CAPABILITIES

TECH MATRIX & DOMAINS

Backend Architecture

High-throughput APIs & microservices

PHP (Laravel) Node.js Express Python REST APIs Microservices

Frontend & Mobile

Dynamic, reactive user interfaces

JavaScript ES6+ React Native Alpine.js Tailwind CSS HTML5/CSS3

Cloud & DevOps

Scalable cloud hosting & automation

AWS (EC2, S3) AWS RDS AWS Lambda Docker NGINX CI/CD

Databases & Caching

Optimized relational & key-value stores

MySQL PostgreSQL MongoDB Redis Firebase DB

AI & Prompt Engineering

LLMs & Agentic AI Workflows

Gemini API ChatGPT / GPT-4 Claude Cursor Antigravity

IoT & Hardware Telemetry

Remote device monitoring & control

MQTT Protocol Serial Data Remote Control Sensor Data

System Architecture

Enterprise system patterns

Event-Driven Queue Processors OAuth2 / Auth High Availability

Mobile SDKs & Analytics

Lightweight client telemetries

Attribution SDK Push SDK Event Tracker Android Native

// ORBITAL ARCHITECTURE

DOMAIN EXPERTISE ORBIT

Hover over orbital nodes to inspect domain specifications

SOFTWARE ENGINEERING CORE SYSTEM

AdTech

MarTech

Enterprise SaaS

Analytics

IoT Controls

AI Integration

// PIPELINE CHRONOLOGY

PROFESSIONAL EXPERIENCE

2018 - PRESENT

MoMagic Technologies

Senior Full Stack Lead & System Architect

▶ Spearheaded engineering of high-concurrency AdTech attribution platforms processing millions of postbacks and click telemetry daily.
▶ Architected push notification delivery infrastructure delivering high volume notifications with microsecond dispatch latency.
▶ Built lightweight mobile SDKs for Android and React Native integrating crash analytics and conversion tracking.

2015 - 2018

NMSS (Netmaxims Technologies)

Senior Software Engineer

▶ Developed customized enterprise web platforms, REST APIs, and database schemes for international clients using PHP and MySQL.
▶ Engineered travel reservation middleware and IRCTC API synchronization systems handling seamless booking workflows.

2013 - 2015

Full Stack Software Consultant

Web Application Developer

▶ Designed bespoke e-commerce portals, CMS backends, and healthcare management portals for enterprise clients.

// ENTERPRISE DEPLOYMENTS

ENTERPRISE PROJECTS

ADTECH / SDK

App Attribution Platform

Role: Lead Architect

High-throughput mobile attribution engine capturing real-time click redirects, app install postbacks, and fraud detection metrics.

PHP Node.js Redis MySQL

MESSAGING / QUEUE

Push Notification Engine

Role: Backend Lead

Massive scale notification pipeline dispatching push messages across millions of mobile devices via Firebase & APNS.

Node.js Firebase FCM Redis Queues

TRAVEL / MIDDWARE

IRCTC Integration Engine

Role: Senior Full Stack Engineer

High-speed ticketing synchronization gateway processing live train availability and instant booking transactions.

PHP REST APIs cURL Middleware

IoT / HARDWARE

IoT Remote Control

Role: Full Stack Architect

Real-time hardware telemetry dashboard managing command signals, inverter telemetry, and remote relays.

MQTT Node.js WebSockets

SDK / TELEMETRY

Analytics Mobile SDK

Role: SDK Engineer

Zero-dependency lightweight client library for Android & React Native capturing event telemetry and crash logs.

React Native Android Java

// PROPRIETARY INNOVATIONS

PERSONAL PRODUCTS

LIVE PRODUCT

Depto Flow

Enterprise Workflow Automation Platform

Visual drag-and-drop workflow automation engine that seamlessly orchestrates multi-step API triggers, webhooks, and team access permissions.

Visual Node Graph Execution

High Concurrency Redis Queues

Custom Webhook Triggers

PHP Node.js MySQL

REQUEST PRODUCT DEMO

LIVE PRODUCT

AI Writer

LLM Content & SEO Engine

AI-powered content generation suite combining Gemini and OpenAI APIs to produce optimized articles, code snippets, and social media media.

Multi-LLM API Swapping

Automated SEO Optimization

Fast Streaming Response UI

Gemini API OpenAI Tailwind

REQUEST PRODUCT DEMO

LIVE TOOL

AWS Backup Manager

Cloud Disaster Recovery Orchestrator

Automated cloud backup utility managing EC2 snapshots, RDS dumps, and multi-region S3 replication with encrypted retention policies.

Automated Cron Snapshots

Encrypted S3 Bucket Sync

Instant Telemetry Alerts

AWS S3 Python Bash

REQUEST TOOL SPECS

// BENCHMARKS & TELEMETRY

ENGINEERING METRICS

PROJECTS COMPLETED

Enterprise & SaaS Platforms

YEARS EXPERIENCE

Full Stack & Architecture

99.99%

SYSTEM AVAILABILITY

High Availability Standard

10M+

EVENTS / DAY

Attribution & Telemetry Hits

// DATA PIPELINE FLOW

INTERACTIVE ARCHITECTURE

Visualizing real-time data packet transmission across microservices

React Native

Mobile Client

REST API

API Gateway

PHP Backend

Microservices

MySQL / Redis

Data & Cache

Firebase

FCM Push

AWS / Drive

Cloud Storage

DATA PACKETS: ACTIVE STREAM (256 KB/s)

LATENCY: 14ms

// INTELLIGENCE LAYER

AI CORE & LLM INTEGRATION

AI NEURAL CORE

Gemini API ChatGPT Claude Cursor AI Antigravity

AI PROMPT SIMULATOR MODEL: GEMINI-3.5-PRO

> Query: Optimize microservice event bus latency

[AI RESPONSE] Implement Redis Pub/Sub combined with asynchronous Swoole workers for PHP. Offload non-blocking DB writes to a background worker pool to maintain zero-latency API HTTP response states.

> Query: How to handle 10,000 requests/sec in PHP?

[AI RESPONSE] Utilize OPcache preloading, persistent MySQL connection pooling, Redis memory caching layer, and NGINX fastcgi load balancing across multi-region EC2 instances.

> Query: What is Rahul's AI integration strategy?

[AI RESPONSE] Rahul leverages LLM APIs (Gemini & OpenAI) to inject automated text synthesis, smart analytics summaries, and autonomous code refactoring pipelines directly into enterprise SaaS backends.

git@github.com:crsiwal/core-systems.git

BRANCH: main

$ git clone https://github.com/crsiwal/enterprise-platform.git

Cloning into 'enterprise-platform'... Remote: 100% (1420/1420), done.

$ git status

On branch main. Your branch is up to date with 'origin/main'.

$ git log -n 2 --oneline

a4f91e2 (HEAD -> main, origin/main) feat: integrate Gemini AI API pipeline
b81c2d0 perf: optimize MySQL index query execution plan

// COMMUNICATION LINK