
E-commerce Backend Architect - Node.js Expert
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$350
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Freelance Technology Consultant & Software Developer – Web, Mobile & Cloud Solutions

Full-Stack Web & Mobile App Developer With AI Integration & Automation Expertise | Top Rated

Fullstack web & App development Claude Master | Agentic Software Development | FullStack & App development | Automation | Top ranked developer
AI & Automation Dev | OpenAI, n8n, Zapier, Make | PHP/Laravel, Node, Django | React, Vue | Shopify, WooCommerce, WordPress | Twilio, Airtable, Supabase | GHL
AI Automation & API Integration Expert | OpenAI, Python, n8n | WordPress, Shopify, Laravel


Full-Stack WordPress/PHP & Mobile App Developer(Android & iOS cross-platform) | Graphic Designer | IT Support & Digital Marketing Specialist

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Description
Experience Level: Expert
Backend Architect / Senior Node.js Engineer – E-commerce Platform
We are building a scalable e-commerce backend and are looking for a Backend Architect / Senior Engineer (Node.js) to design the system architecture and lead the backend foundation.
This is a long-term project starting with an MVP, but the focus is on building a clean, scalable, production-ready system from the beginning.
--What You Will Do
Design backend architecture for an e-commerce platform
Define database structure (PostgreSQL)
Design authentication system (JWT, roles, password reset)
Architect product, cart, checkout, and order systems
Design Stripe payment integration flow
Define API structure and backend standards
--MVP Scope
Authentication system
Product catalog (categories, variants, search/filter)
Cart & wishlist
Stripe checkout
Order management
Basic admin APIs
--Tech Stack
Node.js (NestJS preferred), TypeScript, PostgreSQL, Prisma, Redis, Stripe
--Requirements
Strong experience in Node.js backend development
Experience designing scalable system architecture
Experience with PostgreSQL and API design
Experience with Stripe or payment systems
Background in e-commerce or marketplace systems is a plus
--Please include in your proposal:
Relevant experience in backend architecture
Similar systems you have built
Your approach to designing this kind of system
Estimated timeline for MVP design and/or development
--Note
We are looking for someone who can help design the foundation of a scalable e-commerce platform, not just build endpoints.
We are building a scalable e-commerce backend and are looking for a Backend Architect / Senior Engineer (Node.js) to design the system architecture and lead the backend foundation.
This is a long-term project starting with an MVP, but the focus is on building a clean, scalable, production-ready system from the beginning.
--What You Will Do
Design backend architecture for an e-commerce platform
Define database structure (PostgreSQL)
Design authentication system (JWT, roles, password reset)
Architect product, cart, checkout, and order systems
Design Stripe payment integration flow
Define API structure and backend standards
--MVP Scope
Authentication system
Product catalog (categories, variants, search/filter)
Cart & wishlist
Stripe checkout
Order management
Basic admin APIs
--Tech Stack
Node.js (NestJS preferred), TypeScript, PostgreSQL, Prisma, Redis, Stripe
--Requirements
Strong experience in Node.js backend development
Experience designing scalable system architecture
Experience with PostgreSQL and API design
Experience with Stripe or payment systems
Background in e-commerce or marketplace systems is a plus
--Please include in your proposal:
Relevant experience in backend architecture
Similar systems you have built
Your approach to designing this kind of system
Estimated timeline for MVP design and/or development
--Note
We are looking for someone who can help design the foundation of a scalable e-commerce platform, not just build endpoints.
Julianne P.
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2 Jul 2026
United Kingdom
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Before finalising the architecture, I'd like to understand your long-term roadmap: should the backend be designed from the outset to support multiple storefronts, internationalisation (multi-currency/multi-language), and future marketplace capabilities, or is the intention to optimise purely for a single-store e-commerce platform during the first 12–18 months? This decision has a significant impact on the database model, service boundaries, and overall system architecture.
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