Full-Stack Software Developer — E-Commerce, Marketplace APIs & AI
- company
- Twin Two
- location
- India
- posted
- 16 Jul
- About Twin Two
- Twin Two is an e-commerce and marketplace management company that helps brands operate and grow across Amazon, Walmart, eBay, Best Buy, Shopify, and other online sales channels.
- We have developed a software platform that helps our team manage client operations, marketplace data, products, orders, inventory, reporting, and other critical e-commerce activities. We are looking for an experienced software developer to help us expand the platform, improve its capabilities, and build new tools that make our business more efficient and scalable.
- About the Role
- You will work directly with our leadership and operations teams to understand business needs and turn them into practical software solutions.
- This is an ideal opportunity for a developer who enjoys building real-world business applications, working with third-party APIs, incorporating AI into operational workflows, and improving an existing platform.
- Key Responsibilities
- Develop and enhance our existing e-commerce management platform
- Build new features, dashboards, automations, and internal tools
- Integrate with Amazon, Walmart, eBay, Shopify, and other marketplace APIs
- Use AI to automate workflows, analyze data, improve decision-making, and reduce manual work
- Maintain and improve applications deployed through Vercel
- Build reliable connections for product, inventory, pricing, order, fulfillment, and reporting data
- Troubleshoot API errors, authentication issues, rate limits, and data-sync problems
- Improve platform performance, security, reliability, and scalability
- Work with non-technical team members to translate operational challenges into technical solutions
- Document integrations, workflows, and system architecture
- Required Experience
- Professional experience as a full-stack software developer
- Hands-on experience with
- **Vercel**
- **Experience developing modern web applications using technologies such as JavaScript, TypeScript, React, Next.js, Node.js, or similar frameworks**
- **Experience working with REST APIs, webhooks, OAuth, databases, and cloud-based applications**
- **Experience incorporating AI or large language models into software products and business workflows**
- **Strong understanding of data synchronization, error handling, API security, and application performance**
- **Ability to work independently, solve problems, and communicate technical concepts clearly**
- Marketplace Experience
- Previous experience working with marketplace APIs is highly preferred, including:
- Amazon Selling Partner API
- Walmart Marketplace API
- eBay APIs
- Shopify APIs
- Best Buy Marketplace or other marketplace integrations
- Candidates who have worked with product catalogs, listings, inventory, pricing, orders, fulfillment, returns, marketplace reporting, or seller performance data will be strongly considered.
- Preferred Qualifications
- Experience developing internal e-commerce, ERP, order management, or multichannel software
- Familiarity with Amazon Seller Central and Walmart Seller Center
- Experience with serverless architecture and Vercel deployments
- Experience with PostgreSQL, Supabase, MongoDB, or similar databases
- Experience integrating OpenAI or other AI platforms
- Familiarity with GitHub, version control, testing, and deployment workflows
- Understanding of marketplace rate limits, scheduled data feeds, and asynchronous API processing
- Experience building secure multi-client or multi-tenant applications
- What We Are Looking For
- We are looking for someone who is:
- Technically strong but also understands business operations
- Comfortable improving an existing platform rather than only building from scratch
- Proactive in identifying opportunities for automation
- Able to prioritize reliability and usability
- Interested in building a long-term platform that supports multiple clients and marketplaces
- Excited about using AI to transform e-commerce operations