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iamsyedzain

Syed Zain

@iamsyedzain

Full Stack Architect React Node NestJS SaaS Expert

Paquistão
Inglês
Algumas informações são exibidas no idioma inglês.
Sobre mim
Senior Full Stack Architect with 8+ years of experience building scalable SaaS platforms, ERP systems, and distributed microservices. I specialize in React, Node.js, NestJS, and PostgreSQL, delivering clean, maintainable, high-performance applications. Experienced in AWS, GCP, AI integrations, and multi-tenant architectures. I take end-to-end ownership from backend system design to frontend implementation, ensuring secure and production-ready solutions.... Saiba mais

Habilidades

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iamsyedzain
Syed Zain
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Conheça meus serviços

Aplicações Web Full Stack
I will build scalable full stack saas app using react and nestjs
A partir deUS$ 20 /projetoMais detalhes

Portfólio

Experiência profissional

EcoBE – Multi-Tenant ERP Platform (Waste & Recycling Industry)

Sprinting Softwares, Denmark (Remote from Pakistan) • Período integral

Dec 2025 - Present • 5 mos

Designed and maintained a scalable multi-tenant ERP platform for the waste and recycling industry using NestJS, TypeScript, Prisma, and PostgreSQL. Led development of finance modules including dynamic invoice PDF generation, tenant-specific billing logic, and configurable payment terms. Implemented Domain-Driven Design patterns, role-based access control, and secure AWS S3 document storage. Contributed to React-based admin dashboards and ensured seamless API integration. Focused on clean architecture, performance optimization, and production-grade scalability.

Funds Management Microservices

HeuristicSol PVT LTD • Período integral

May 2022 - Nov 2025 • 3 yrs 6 mos

Led the transformation of a legacy monolithic Funds Management System into a distributed microservices architecture using Node.js (Express), Golang services, MySQL, Redis, and Google Cloud Platform. Designed and implemented core services including Document Service, Screening Service, and Reporting Service using repository pattern and RESTful APIs. Integrated third-party compliance providers such as World Check, Google Custom Search, and Dow Jones to automate due diligence workflows. Optimized database queries, implemented Redis caching, and deployed region-aware services to improve performance under high loads. Automated compliance and document workflows using Cloud Functions and Scheduler, reducing manual intervention and significantly improving onboarding speed and reporting accuracy.

Job Portal (The Gradient Group USA)

Qult Technologies, USA (Remote) • Freelance

Oct 2023 - Dec 2024 • 1 yr 2 mos

Led backend development of an AI-powered job portal platform using Node.js and MongoDB. Designed secure RESTful APIs with JWT-based authentication and role-based access control for recruiters and candidates. Implemented AI-driven features including Resume Builder, Resume Parsing, Resume Ranking, and Interview workflow integrations powered by large language models. Built scalable recruiter and candidate management modules with optimized database queries and modular service architecture. Focused on clean backend design, performance, and seamless frontend integration to deliver a production-ready, intelligent recruitment platform.