Senior Backend Software Engineer

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🕒 March 28

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Protac Inc.

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2015

🛍️ eCommerce

🏪 Marketplace

🛒 Retail

eCommerce • Marketplace • Retail

Protac Inc. is an innovative online marketplace that specializes in live sales of rare plants and collectibles. Users can explore a wide range of listings, participate in live shows, and interact directly with sellers while enjoying competitive selling fees and a community-oriented platform. The company aims to streamline the selling process for hobbyists and entrepreneurs in the plant and collectible market, offering features that enhance both the shopping and selling experience.

📋 Description

• Build and maintain robust backend services and APIs that power both web and mobile applications using Node.js • Work closely with PM and design to build scalable products and services • Establish self as an owner of a particular component, feature, or system with expert end-to-end understanding • Successfully complete projects at large scope while maintaining a consistently high level of productivity • Take active ownership of DevOps responsibilities including CI/CD pipelines, infrastructure management, deployment automation, and system reliability • Leverage AI coding tools (Cursor, Codex, Claude Code) to accelerate development velocity and improve code quality

🎯 Requirements

• BS (or higher) in Computer Science • Bilingual proficiency in English and Mandarin • 5+ years experience building highly scalable and reliable infrastructure • Payment system experience preferred • Hands-on DevOps experience: CI/CD, infrastructure as code, containerization (Kubernetes, Docker), and cloud platforms (GCP/AWS) • Proficiency with AI-assisted development tools (Cursor, Codex, Claude Code) preferred • Experience building high-concurrency systems preferred

🏖️ Benefits

• 5 insurances + 1 housing fund(五险一金) • Equity grants will also be provided as part of the total compensation package.