Software Engineer focusing on backend for Mercari's US app. Leading development of payment processing and inventory management systems in a hybrid work environment.
Responsibilities
Lead the development of complex backend features and services, such as payment processing and inventory management systems
Design and implement scalable backend architectures and patterns, including microservices and event-driven systems
Drive technical decisions and best practices for backend development, including coding standards, performance budgets, and testing strategies
Mentor and guide other engineers in backend development practices through code reviews and technical presentations
Collaborate with product and frontend teams to define technical requirements and feasibility of new features
Optimize backend performance and scalability, focusing on database optimization, caching strategies, and load balancing
Contribute to backend platform technology and strategic roadmap decisions, including technology evaluation and technical debt reduction
Lead technical discussions and architectural reviews for major features and system changes
Requirements
Deep understanding of backend performance optimization techniques
Strong architectural and system design skills
Excellent mentoring and technical leadership abilities
Expert knowledge of Go and PHP ecosystems
MySQL
Spanner
Google Cloud Platform
Kubernetes
Excellent knowledge of Agentic AI tools and workflows
English: Business level (CEFR B2 or higher) required
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