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zainraza20000

Zain Raza

@zainraza20000

Full Stack Developer for SaaS, AI Apps and Automation

Pakistan
English, Urdu
About me
I’m a Senior Full Stack Developer with 6+ years of experience building SaaS products, AI-powered applications, MVPs, custom web applications, business software, and scalable digital solutions. My expertise includes React, Next.js, TypeScript, Node.js, NestJS, Python, Django, FastAPI, PostgreSQL, Supabase, AWS, OpenAI, Claude, AI agents, RAG, AI chatbots, LLM integrations, n8n, Make, workflow automation, and third-party API integrations. I focus on building reliable, scalable, and production-ready solutions for startups and businesses.... Read more

Skills

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zainraza20000
Zain Raza
Offline • 

See my services

Automations
I will automate google sheets with apps script
From$30 / projectMore details
Automations & Agents
I will build ai automation workflows, ai agents, and n8n integrations
From$150 / projectMore details

Portfolio

Work experience

Upwork

Full Stack Developer

Upwork • Self-employed

Sep 2020 - Present • 6 yrs

Top Rated Plus Freelancer on Upwork. Worked as a Senior Full Stack Developer on Klapil, a home renovation platform built with NestJS and MongoDB/Mongoose. Primarily focused on backend development, including API development and optimization, role-based authentication, database schema design, and features such as House Log Book, Project Sheets, drafts, project updates, and 3D models with Three.js. Also handled GCP Cloud Run deployments, CI/CD, GCP storage, Google reCAPTCHA, and frontend-backend integrations. Worked on an integration service for EzraAI connecting its backend with ItsaCheckmate, handling high-volume requests, complex data transformation, and caching. For LovAgent AI, developed a semantic search engine for large collections of legal documents using Adobe PDF Services API, text chunking, vector embeddings, and vector database search.

Software Engineer

folio3 • Full-time

May 2023 - Dec 2023 • 7 mos

Worked on Pulse, Folio3’s internal company management system built for a large software house. As a Full Stack Developer, I worked on core modules including HR management, employee attendance, and Line Mentorship. On the frontend, I built and maintained user-friendly interfaces using ReactJS. On the backend, I worked on database schema design, migrations, REST API development, and third-party API integrations to support these modules. Worked on Bundle, a marketplace platform designed to connect builders with product suppliers in the construction industry. The platform enables builders to discover and interact with suppliers more efficiently. Worked as a Full Stack Developer, developing the frontend with VueJS and the backend with Django. I contributed to the development of core platform features and integrations across both sides of the application.