With ~200 employees, OpenCommerce Group is a leading technology organization that offers e-commerce products with offices in China, and Hanoi. We are fortunate to have a team that can target vast and vibrant markets, with the benefit of ten years in the eCommerce industry and over one million online sales sector customers around the world. most nations in the world, such as the United States and China. The aim of the OpenCommerce Group is to create a product ecosystem to facilitate and improve e-commerce in general, as well as cross-border commerce in particular, and to serve as a launching pad for entrepreneurs. Starts expands and performs in the online world. We're expanding rapidly, and we're searching for top talent to help us create a global Commerce Community. Join OpenCommerce Group to expand the scope of your work.

RESPONSIBILITIES

• Design and build scalable backend services for business reporting systems and internal operations tools
• Design database schemas, write complex queries, and optimize performance for reporting databases and data warehouses
• Implement caching, indexing, and data sync mechanisms to ensure fast query response and high system reliability
• Monitor system health, fix bugs, and optimize backend performance across all internal tools
• Review code, enforce engineering standards, and mentor junior and mid-level developers
• Collaborate with Product Managers, Data teams, and internal business users to turn operational needs into technical solutions

REQUIREMENTS

• At least 4–5+ years of backend development experience using Python, Golang, or Node.js (Strong Mid-level to Senior)
• Proficient in using AI coding tools (Claude Code, Cursor, GitHub Copilot, Cline, etc.) to speed up development, debug, and solve daily technical problems
• Strong experience with database design (PostgreSQL, MySQL, or NoSQL), complex query optimization, and caching solutions (Redis / Memcached)
• Solid foundation in System Design, RESTful APIs / gRPC, microservices, and asynchronous processing using message queues (Kafka, RabbitMQ)
• Hands-on experience with Docker, CI/CD pipelines, and deploying applications in Kubernetes (K8s) environments

Nice to have:

• Experience in building or optimizing data and reporting systems (Data Warehouses, OLAP systems, and analytical query optimization for large datasets)
• Hands-on experience integrating LLM/AI APIs into production systems (RAG, OpenAI/Anthropic APIs, automated data processing with AI)

BENEFITS

• Competitive monthly NET salary, transparent and fully take-home
• up to 16 months’ salary per year, including a 13th-month salary, quarterly incentives, and annual performance bonuses.

• 24 remote working days per year, enabling a healthy work–life balance
• 12 days of paid annual leave, in addition to public holidays
• Flexible working hours, Monday to Friday – weekends are fully yours

• Annual health check-ups
• Full social insurance coverage (BHXH) in compliance with Vietnamese labor regulations
• Company-sponsored sports clubs to support both physical and mental well-being
• Regular company trips and team bonding activities

• Be part of a fast-growing global B2B SaaS organization
• Clear and accelerated career development and promotion pathways
• Collaborate with talented, diverse, and high-performing teams across regions
• Work in a modern, open, and empowering environment where individuality is respected and potential is nurtured