Mahmudul Alam

@devmahmud
5,0(111)

Level 2

Senior engineer building payment systems, APIs and web applications

Bangladesh
Inglês, Bengali
Algumas informações são exibidas no idioma inglês.
Sobre mim
Senior engineer, 7+ years. I build payment systems, card and crypto, with KYC compliance built in. Recent: Stripe and crypto on/off-ramp flows for a crowdfunding platform serving Brazil's creator community. Payment rails and KYC for a Japanese e-commerce ecosystem. Backend lead on a micropayments app. A crashing production endpoint rewritten 3.4x faster. Python (Django, DRF, FastAPI), Node.js/TypeScript (Express, NestJS), React, Next.js, PostgreSQL, AWS. Tell me what you need built or fixed. I'll tell you exactly what it takes.... Saiba mais

Habilidades

d
devmahmud
Mahmudul Alam
US$ 30/hora
offline • 
Tempo médio de resposta: 2 horas

Conheça meus serviços

Aplicações Web Full Stack
I will be your full stack developer with react python fastapi and nodejs
5,0(110)

Quer trabalhar com remuneração por hora?

Diga a Mahmudul Alam o que você precisa.

US$ 30

/

hora

Portfólio

Experiência profissional

Individual Contributor (IC)

Creative Crowdfunding Protocol • Período integral

Sep 2022 - Present3 yrs 11 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.

111 Avaliações
5,0

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Classificação detalhada
  • Nível de comunicação do freelancer
    5
  • Qualidade da entrega
    5
  • Valor da entrega
    5
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