Jobs at Mercari

Develop and operate large-scale frontend products using JavaScript, TypeScript, React.js, Next.js, Redux, GraphQL, and related web technologies. Design performant, scalable, accessible, and cross-browser-compatible user interfaces; contribute to architecture and application improvements; use cloud infrastructure, CI/CD, version control, and monitoring tools; and collaborate effectively with product and engineering teams.

Partners with business leaders and managers across Mercari India on performance and talent management, employee engagement, manager coaching, organizational change, employee relations, and people analytics. Uses HR data to identify trends and recommend interventions, supports investigations and compliance, and collaborates with HR, legal, finance, talent acquisition, and learning teams to improve people programs and processes.

Design, develop, operate, and maintain scalable platform infrastructure supporting the software development lifecycle. Build automation, improve platform stability, scalability, availability, security, and observability, and support migrations and developer productivity. Collaborate with SRE, Security, and internal developers to understand needs, prioritize improvements, reduce operational toil, control costs, and maintain reliable large-scale services.

Lead the design, development, operation, and adoption of scalable platform and infrastructure capabilities. Set technical direction, write and review production code, improve reliability, security, observability, and developer productivity, automate operations, lead migrations, and guide incident response. Collaborate with stakeholders across teams, mentor engineers, and deliver platform tools supporting software development and large-scale Mercari services.

Leads technical direction for Mercari’s cross-border backend platform. Designs distributed Go services, APIs, BFFs, and multi-region systems supporting search, pricing, checkout, payments, and post-purchase workflows. Owns reliability, observability, safe deployments, and incident learning across multiple teams and external providers. The role influences architecture across India and Japan, applies AI and LLMs to software delivery, solves complex design problems, and mentors senior engineers and technical leaders.

The Senior Software Engineer will design, develop, and operate APIs, improve services, manage middleware, and support system operations as part of a collaborative engineering culture. Responsibilities include performance tuning, architecture design, and leading software development processes.

Design, develop, and operate APIs; improve services based on user behavior; collaborate on development tasks; ensure system operation and performance.

Lead quality engineering across mobile, web, API and backend systems by defining test strategies, building scalable automation frameworks, applying AI-powered testing, driving functional and non-functional tests, strengthening CI/CD quality gates, analyzing metrics, mentoring teams, and improving QA processes throughout the product lifecycle.

Lead India IT operations for Mercari Bangalore: manage service desk, onboarding/offboarding, device and access management, design operational processes, receive knowledge transfer from Japan, document procedures, and drive automation and improvements.

Design, implement, deploy, and maintain large-scale recommendation and ML systems. Perform data analysis, experimentation (A/B testing), collaborate with product teams, monitor production systems, and apply MLOps practices using cloud and Kubernetes.