R&D Management Trainee - Full-Stack Engineer (Backend）

TrustWILL is a company focused on providing post-purchase retention solutions for Shopify brands. They are seeking a R&D Management Trainee who will work on production systems within a product engineering team, focusing on building and maintaining features while receiving mentorship from senior engineers.

Responsibilities:

• Build features across the full stack with a backend focus: APIs, business logic, data processing, and third-party integrations
• Participate in technical solution design, coding, integration testing, and deployment
• Take ownership of the quality of the features you build and deliver them to spec
• Assist with production bug investigation, root cause analysis, and resolution
• Use logging, monitoring, and database tools to trace issues methodically
• Contribute to ongoing improvements in system stability, performance, and code maintainability
• Follow team engineering standards: code reviews, documentation, and testing
• Proactively communicate progress, risks, and blockers
• Participate in post-launch retrospectives; continuously improve your code quality and engineering judgment
• As you grow, take on increasing ownership of modules and technical decisions

Requirements:

• Recent graduate from a US university (BS or MS), or within 1–2 years of graduation
• Proficiency in at least one backend language: JavaScript/TypeScript, Python, Java, Go, or PHP
• Web fundamentals: HTTP, RESTful API design, frontend-backend interaction, and relational databases
• Basic SQL and database understanding (MySQL or PostgreSQL)
• Able to read documentation, debug systematically, and own your work through completion
• Reliable and communicative — you surface problems early and follow through on commitments
• Experience with any of: React, Node.js, Next.js, NestJS, Python, PostgreSQL, Redis
• AI/LLM project experience: prompt engineering, RAG, knowledge bases, chatbots, or content generation
• Shopify app development, independent store tech, SEO tools, or SaaS product experience
• Internship at a tech or SaaS company; open source contributions or personal project portfolio
• Familiarity with Docker, CI/CD, or cloud services (AWS, Aliyun, etc.)
• Active GitHub profile with consistent commit history
• Competitive programming background (ACM, LanQiao Cup, etc.)
• Experience with AI-assisted development tools (Cursor, GitHub Copilot, Claude Code, etc.)
• Mandarin Chinese communication ability