EXPLORE


6.5
6.5
94%
$31 USD / Hour
・

India (12:06 AM)
・
Joined on January 3, 2018
$31 USD / Hour
・
I've spent 8+ years building full-stack and AI-powered products, including time embedded in Apple and Amazon project teams as a contract developer. That experience taught me something most freelancers never get exposed to: how large, complex organizations actually take a product from idea to a stable, successful release. I understand the full software development life cycle, from planning and requirements through architecture, development, testing, deployment, and maintenance. I know which of those steps tend to get rushed or skipped on smaller projects, usually right before something breaks in production. Most AI app projects don't fail because the idea was bad. They fail because of scope creep, endless revisions, delayed launches, and technical debt that piles up quietly. So before I write a single line of code, I sit down with your requirements and tell you honestly what should be added, simplified, or cut. That one step alone has saved past clients weeks of avoidable rework. If you already have a codebase that needs a revamp, upgrade, or AI integration, I start with a proper code audit. I'll flag what's solid, what's fragile, and what should be rebuilt, then hand you a clear plan with realistic timelines. If you're starting from scratch, I take time to understand what you're building before jumping into development. I put together early prototypes so you can see and feel the product, map the full user journey, and back every milestone with a QA report covering functionality, performance, security, and edge cases. Here's what you can expect me to deliver: cross-platform mobile apps (Flutter, React Native, iOS, Android) with real AI features like chatbots, personalization, predictive analytics, and computer vision. Full-stack web apps (React, Next.js, Node.js, Python) powered by LLMs like OpenAI and Gemini, plus Retrieval-Augmented Generation, you can see an example in the Neural Dakar RAG project in my portfolio. I also build AI workflow automations that save teams hours every week, and I write clean, maintainable code with proper CI/CD and cloud deployment on AWS, GCP, or Firebase, with support after launch. Clients tend to stick with me for a simple reason: I communicate clearly, I tell you the truth even when it's not what you expected to hear, and I build things meant to last and actually drive results, not just look good in a demo. If you're ready to build or upgrade an AI-powered product the right way, message me with your idea or your current codebase. Before we write any code, I'll walk you through what to keep, what to cut, and what to rethink, so you can launch faster and skip the delays most projects run into.
Verifications
On time
100%
On budget
100%
Accept rate
85%
Repeat hire rate
13%

FIS Advisory - Mortgage Savings

Multi-Language E-Commerce Next JS

Multi-Language E-Commerce Next JS

AI Mobile Application Development

AI Mobile Application Development

AI Mobile Application Development

AI Mobile Application Development

Neural Dakar - RAG for Dakar Rally

Neural Dakar - RAG for Dakar Rally

Virtual Tour of the Sacesta Premises

Contact Card Creator

Contact Card Creator

FIS Advisory - Mortgage Savings

Multi-Language E-Commerce Next JS

Multi-Language E-Commerce Next JS

AI Mobile Application Development

AI Mobile Application Development

AI Mobile Application Development

AI Mobile Application Development

Neural Dakar - RAG for Dakar Rally

Neural Dakar - RAG for Dakar Rally

Virtual Tour of the Sacesta Premises

Contact Card Creator

Contact Card Creator
Joshi Sumit is an amazingly skilled and expereinced expert in CRM, Sales and Marketing. We love to work together with him. Always polite. Always happy. I will hire Joshi again.
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Sumit is an absolute top-tier full-stack developer and an exceptional technical partner! He stepped into our startup project and built our core HubSpot campaign marketing infrastructure flawlessly and ahead of schedule. When our plan faced standard platform restrictions, he brilliantly pivoted and engineered customized fallback solutions to keep our database secure and our outbound calling workflow simple.
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Joshi is an absolute world-class developer and an elite technical operations leader! He successfully deployed and integrated our complex, bidirectional HubSpot-to-Aircall cloud telephone networks with flawless speed and absolute precision .His communication is deeply professional, analytical, and highly strategic. A phenomenal asset to any tech enterprise—highest recommendation!
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Joshi understood my requirements very well, and I feel he is part of my team, collaborating and building something great together! I will certainly work with him and his team again! Thanks Joshi and Team!
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He understood what we needed to do, managed the project professionally and got it done. His documentation was really good.
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Experience
Full Stack Developer (Shadow Resource)
May, 2024 - Apr, 2025
•
11 months
Amazon
May, 2024 - Apr, 2025
•
11 months
Engaged as a contract/shadow resource Full Stack Developer supporting an Amazon project team for approximately one year. Contributed to web application features, API integrations, and testing as part of a distributed engineering team.

Seattle, United States
May, 2024 - Apr, 2025
•
11 months
Full Stack Developer (Shadow Resource)
Apr, 2023 - Apr, 2024
•
1 year
Apple
Apr, 2023 - Apr, 2024
•
1 year
Engaged as a contract/shadow resource Full Stack Developer supporting an Apple project team for approximately one year. Worked on web application development and enhancements using JavaScript-based frameworks, collaborating closely with the core engineering team on features, code reviews, and testing.

Cupertino, United States
Apr, 2023 - Apr, 2024
•
1 year
Tech Lead
Dec, 2021 - Apr, 2023
•
1 year, 3 months
Spectus Infotech
Dec, 2021 - Apr, 2023
•
1 year, 3 months
Working for their clients and helping them to build their Web Developers Teams by training fresher developers and deploying them to client's projects. From Dec 2021 to present we have scaled our team from 0 to 7 Web developers. Working on Javascript related technologies / frameworks like NodeJS, ReactJs, Angular, JQuery, Vanilla
Dec, 2021 - Apr, 2023
•
1 year, 3 months
Education
Gujarat Technological University (GTU)
2015 - 2019
•
4 years
Bachelors of Engineering in Computer engineering

India
2015 - 2019
•
4 years
Qualifications
Bachelors of Engineering in Computer Engineering
2015
Gujarat Technological University
Bachelors of engineering in Computer engineering
2015
Certifications
P
Preferred Freelancer Program SLA
US English