Available for new projects β€’ Remote & on-site

Senior Full-StackEngineerRails + Mobile + AWS

Helping startups and businesses build, launch, and scale their products with clean code and proven architectures.

5+
MVPs Delivered
1M+
Users Served
100K+
Monthly Active Users
7+
Years Experience
Imtiaz Abbas Kazarani - Remote Senior Full-Stack Engineer specializing in Ruby on Rails, React Native, and AWS
100%
Job Success
20+
Happy Clients
Available
for Projects

Trusted Technologies

Ruby on Rails
React Native
AWS Cloud
PostgreSQL
Next.js
Code is like humor. When you have to explain it, it's bad.

About Me

Senior Full-Stack Engineer with 7+ years building scalable solutions for startups and growing businesses

What I Do

I'm a Senior Full-Stack Engineer specializing in Rails, React Native, and AWS who helps startups and businesses build, launch, and scale their products β€” fast, clean, and ready for growth.

I've delivered 5+ end-to-end MVPs using Rails + React Native / Native iOS/Android and scaled systems to handle 100K+ monthly active users.

My expertise covers full-stack product development, modern web applications (React/Next.js, SvelteKit), cloud infrastructure & DevOps (AWS), performance optimization, custom API development, cross-platform mobile solutions, and UI/UX implementation.

Why Choose Me

Rapid MVP Development
16-week average delivery
100K+ MAU Scaling
Monthly active users
Full-Stack Coverage
Backend to mobile apps
Proven Track Record
20+ successful projects

🌍Remote Work Excellence

Async Communication
Slack, Discord, Trello, Notion, Linear
Video Collaboration
Zoom, Google Meet, Teams, Loom
Timezone Coverage
EST to PST overlap, flexible hours
Documentation
Comprehensive code docs & handoffs

Languages

EnglishFluent
HindiNative
TeluguNative

Core Expertise

Ruby on Rails + Web DevelopmentExpert
Mobile Development (Native + Cross-Platform)Expert
AWS Cloud InfrastructureAdvanced

Technology Stack

Backend
Ruby on Rails
Node.js
PostgreSQL
Redis
Frontend/Web
React/Next.js
SvelteKit
TypeScript
Tailwind CSS
Mobile
React Native
SwiftUI/UIKit (iOS)
Jetpack Compose/XML (Android)
Kotlin Multiplatform
Cloud/AWS
ECS/Fargate/EC2
S3/CloudFront
RDS/Aurora
ElastiCache

Ready to Build Something Great?

Let's turn your idea into reality. From concept to launch, I'll help you create a solution that scales with your business.

First, solve the problem. Then, write the code.

Featured Projects

Real-world solutions delivered for startups and growing businesses. From MVPs to scaling platforms with 100K+ monthly active users.

5+
MVPs Delivered
100K+
Monthly Active Users
20+
Clients Served
7+
Years Experience
Case Study

Canoo - Full-Stack Platform

Architected and scaled full-stack mobile platform with enterprise AWS infrastructure for Canadian client.

Successfully scaled to 650K+ total users with 100K+ MAU using React Native apps, Ruby on Rails microservices API, AWS ECS auto-scaling, Aurora PostgreSQL with read replicas, and Redis caching. Achieved 40% performance improvement with zero-downtime Blue-Green deployments.

React Native + Ruby + AWS
View Case Study
01
Frolick - Meal Delivery Platform logo
Case Study

Frolick - Meal Delivery Platform

Built end-to-end corporate meal delivery platform that secured $1.8M funding.

Delivered MVP in 16 weeks with Rails API, native iOS (SwiftUI) and Android (Kotlin) apps. Features include menu browsing, corporate ordering, delivery tracking, and in-app payments.

Swift + Kotlin + Ruby
View Case Study
02
Aasaanwill - Online Will Platform logo
Case Study

Aasaanwill - Online Will Platform

Developed secure online will creation platform for Indian market.

Built with SvelteKit frontend and Rails backend on AWS. Features step-by-step guided will creation, payment integration, and PDF generation. Enabled 100+ customers to create wills in first quarter.

SvelteKit + Ruby
View Case Study
03
MIVI - Smartwatch Health App logo
Case Study
πŸ”΅

MIVI - Smartwatch Health App

Built companion mobile app for MIVI smartwatches with health tracking.

Kotlin Multiplatform architecture with native iOS (Swift) and Android (Kotlin) UIs, advanced Bluetooth Low Energy integration, and sophisticated health animations with 95%+ connectivity success rate.

Kotlin + Swift
View Case Study
04
Case Study

Krishiyog - Farm Worker Management

Mobile app for Indian farmers to manage field workers and harvest tracking.

Native Android app built with Kotlin featuring worker attendance, crop harvesting records, procurement logs, and offline storage for low-connectivity areas.

Kotlin
View Case Study
05

Ready to Start Your Project?

Let's build something amazing together. From concept to launch, I'll help you create a solution that scales with your business.

πŸ’‘ Hard-Won Insights

What I've Learned Building at Scale

Key insights from architecting systems that serve millions of users, scaling startups from MVP to enterprise, and solving complex technical challenges

⚑

Performance is Non-Negotiable

Sub-second response times aren't luxuryβ€”they're essential. I've seen 40% performance improvements transform user engagement and business metrics.

From Canoo's 650K+ users to healthcare platforms serving thousands daily
πŸ—οΈ

Architecture Decisions Matter Early

The choices you make at 1,000 users determine your success at 1 million. Microservices, caching strategies, and database design compound over time.

Learned from scaling multiple platforms from startup to enterprise
🎯

Users Drive Every Decision

Real analytics beat assumptions every time. User behavior data has guided every optimization, from mobile UX to API design patterns.

100K+ MAU insights from mobile apps to SaaS platforms
πŸ’°

Smart Scaling Saves Money

Over-engineering kills budgets. Single-AZ databases, auto-scaling containers, and intelligent caching deliver enterprise performance at startup costs.

60% cost reduction while handling 10x traffic growth
πŸš€

Automation Prevents Disasters

Manual deployments are technical debt. CI/CD pipelines, automated testing, and infrastructure as code have saved countless midnight emergencies.

Zero downtime deployments across multiple production systems
πŸ“±

Mobile-First is Business-First

Offline-first architecture, cross-platform consistency, and native performance aren't technical choicesβ€”they're business imperatives in today's market.

React Native apps serving millions across iOS and Android

My Core Development Philosophy

🎯

Solve Real Problems

Every line of code should address a genuine user need or business requirement. Complexity for its own sake is technical debt.

⚑

Build for Scale

Design systems that gracefully handle 10x growth. Performance, reliability, and maintainability should be built in, not bolted on.

πŸš€

Ship Fast, Learn Faster

Perfect is the enemy of good. Get to market quickly, measure everything, and iterate based on real user feedback.

🌍 Remote Work Excellence

7+ Years of Remote Mastery

Proven expertise in async collaboration, distributed team management, and seamless project delivery across global timezones

15+
Timezones Worked
100%
Remote Projects
24/7
Async Support
5+
Remote MVPs

πŸ’¬Communication & Collaboration

Slack
Discord
Microsoft Teams
Zoom
Google Meet
Loom

πŸ“‹Project Management

Trello
Notion
Linear
Jira
GitHub Projects
Asana

Remote-First Philosophy

πŸ•

Async by Default

Clear documentation, detailed progress updates, and structured communication that works across any timezone.

🎯

Results-Driven

Focus on deliverables and outcomes, not hours logged. Quality code and meeting deadlines matter most.

🀝

Team Integration

Seamless integration with existing teams, processes, and tools. Adaptable to your workflow.

Experience is the name everyone gives to their mistakes.

Professional Journey

From computer science graduate to independent consultant serving 20+ clients

January 2025

Expanded Consulting Practice - 20+ Clients Served

πŸ’Ό Career

August 2023

Launched Independent Consulting Business

πŸ’Ό Career

Mar 2021

Promoted to Senior Product Engineer

πŸ’Ό Career

July 2019

Promoted to Product Engineer

πŸ’Ό Career

Jun 2018

Joined Uncommon Design Services as a Junior Product Engineer

πŸ’Ό Career

Aug 2017

Joined Report Garden as Software Developer Intern

πŸ’Ό Career

Apr 2017

Graduated Computer Science and Engineering

πŸŽ“ Education
7+

Years Experience

Building and scaling web applications

20+

Clients Served

As independent consultant

5+

MVPs Delivered

End-to-end product development

Good communication is just as stimulating as black coffee, and just as hard to sleep after.

Let's Work Together

Ready to transform your idea into a scalable solution? Let's discuss your project.

Why Choose Me for Your Project?

Available 30+ hrs/week
Full-time commitment
NDA & Contract Ready
Professional protection
Upwork Freelancer
Growing Profile
Fast Response Time
Within 2 hours

Quick Contact

Choose the best way to reach me for your project needs

πŸš€ Hire Me on Upwork

Start immediately with Upwork's secure platform. Protected payments, clear milestones, and professional support.

Professional Profile
100% Success Rate

Direct Email

For quick questions or project discussions

πŸ“§ Send Email

LinkedIn

Professional networking and quick messages

πŸ’Ό Connect

Project Brief Form

Tell me about your project and I'll get back to you within 2 hours

I typically respond within 2 hours during business hours

Services & Technologies

Full-Stack Web Development
Mobile App Development
AWS Cloud Infrastructure
MVP Development
Legacy System Modernization

Let's Connect

Imtiaz Abbas Kazarani

Senior Full-Stack Engineer helping startups and businesses build, launch, and scale their products.

Β© 2025 Imtiaz Abbas Kazarani. All rights reserved.