Mahmudul Alam
Level 2
JavaScript and Python full stack developer delivering quality web apps
Skills
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Work experience
Individual Contributor (IC)
Creative Crowdfunding Protocol • Full-time
Sep 2022 - Present • 3 yrs 8 mos
- Led full-stack development of a large-scale crowdfunding platform using React, Next.js, Express.js, and TypeScript, delivering robust, production-ready features end to end. - Architected and led the frontend application for Catarse, one of Brazil’s largest crowdfunding platforms, ensuring scalability, maintainability, and high performance. - Led the frontend team for Rakunew and PledgeX, powering a Japanese eCommerce ecosystem enabling sellers/creators to distribute products across multiple platforms. - Architected and delivered maintainable Next.js codebases for multiple clients, with a focus on clean architecture, reusability, and long-term extensibility. - Implemented US payment methods, crypto on-ramp/off-ramp flows using Stripe and Bridge, and integrated Persona + Bridge KYC for regulatory compliance. - Built and integrated Web3 wallet connections, smart contract interfaces, and secure blockchain transaction workflows across multiple networks. - Designed reusable frontend and backend modules that improved contributor developer experience (DX) and reduced new feature development time by ~30%. - Optimized backend API performance and caching layers, significantly reducing server load and improving response times. - Collaborated closely with design, backend, and product teams to deliver high-quality, end-to-end features across multiple product lines. - Developed custom Shopify apps and integrated Shopify Liquid templates to implement a seamless pre-order with crypto flow for Karma Automotives.
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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wynter_rave
Repeat Client

United States
Mahmudul delivered excellent custom work with added features like barcode scanning and weekly email reports. He handled everything smoothly without any hassle. The final app matched the agreed scope perfectly. Professional, responsive, and very reliable throughout.

Seller's Response

cool4trade
Repeat Client

United States
Seller is great to work with. He is a true professional and a team player who understands the complexities of a project and how to solve them. We will have more work for him
$100-$200
Price
13 days
Duration
Seller's Response
wynter_rave
Repeat Client

United States
Mahmudul takes projects to the next level, he was attentive to any change and he was able to make it happen on time. very easy to work with, professional, and takes time to communicate back with me on issues. Awesome job as always thanks so much again!
Seller's Response
kelly_frias
Repeat Client

United States
He handled the custom inventory app with strong professionalism. He quickly understood the requirements and delivered ahead of schedule. Communication remained smooth and straightforward throughout the process. I’m very satisfied with the overall quality of his work.
Seller's Response

cool4trade
Repeat Client

United States
Great working with the seller. He is a true professional and an excellent developer. Happy to recommend to anyone.
Seller's Response
