Senior QA Engineer

Introduction

About Us

Mercari is a Japan-based C2C marketplace company founded in 2013 with the mission to “Create value in a global marketplace where anyone can buy & sell.” From being the first tech unicorn from Japan before its IPO in 2018 we have come a long way towards becoming a global player and continuously and diligently work towards our transformation journey with a strong focus on our mission.

Since its inception, Mercari Group has worked to grow its services, investing in both our people and technology. Over time Mercari has expanded from being the top player in the C2C marketplace in Japan to new geographies like the U.S. We have also successfully launched new businesses such as Merpay, which is a mobile payment service platform with a vision to create a society where anyone can realize their dreams through a new ecosystem centered not only on payment service but also on credit. Today, Mercari Group is made up of multiple subsidiary businesses including logistics, B2C platform, blockchain, and sports team management.

For our services to be utilized by people worldwide; however, there is still a mountain of work ahead of us. This endeavor naturally requires the capability of the best talent and minds, and that is exactly the reason for us to launch the India Center of Excellence. With your help, we will continue to take on the world stage and strive to grow into a successful global tech company.

Our Culture

To achieve our mission at Mercari, our organization and each of our employees share the same values and perspectives. Our individual guidelines for action are defined by our three values: Go Bold, All for One, and Be a Pro. Our organization is also shaped by our four foundations: Sustainability, Diversity & Inclusion, Trust & Openness, and Well-being for Performance. Regardless of how big Mercari gets, the culture will remain essential to achieving our mission and something we want to preserve throughout our organization. We invite you to read the “Mercari Culture Doc,” which summarizes the behaviors and mindset shared by Mercari and its employees. We continue to build an environment where all of our members of diverse backgrounds are accepted and recognized, and where they can thrive while holding dear to Mercari’s culture.

Position Overview

A Senior QA Engineer at Mercari India is responsible for building quality into every stage of the software development lifecycle. The role works closely with software engineers, product managers, designers and stakeholders to improve testability, identify risks early  and ensure reliable product releases.

This role goes beyond test execution and automation. The engineer is expected to define test strategies, drive automation, influence engineering decisions, improve quality processes and adopt AI-powered practices to increase productivity and quality.

The goal is to deliver high-quality, scalable and customer-focused software while strengthening quality ownership across engineering teams.

Work Responsibilities

Specific work responsibilities include:

1. Develop and execute test plans, test cases and test strategies based on business and technical requirements.
2. Identify, document, track, and help resolve quality risks, defects and issues.
3. Design, build, and maintain scalable automation frameworks for mobile, web, API, and backend systems.
4. Use AI tools and AI-powered workflows to improve test design, execution, analysis, and productivity.
5. Drive functional and non-functional testing, including regression, performance, reliability, scalability, and resilience testing.
6. Strengthen CI/CD quality gates and promote testability across engineering workflows.
7. Analyze quality metrics, test results and product data to recommend improvements.
8. Collaborate with product managers, designers, engineers, and stakeholders to ensure quality standards are met.
9. Improve QA processes, testing practices, tools  and automation approaches.
10. Participate across the full product lifecycle, from planning and design to release and maintenance.
11. Stay updated on modern QA practices, automation tools and AI-powered quality engineering trends.
    

Development Environment

• Tools used: ArkCI / GitHub / Jetpack Compose / XCUITest / Playwright / BigQuery / Looker / Datadog / Postman / Slack / Jira / Confluence / TestRail / Notion
• AI assistance tools: Google Gemini / Cursor / ChatGPT / Claude Code
  

Job Description

What You Will Do

• Work on improving existing product features and launching new ones from the customer’s point of view.
• Define and execute test strategies that provide high release confidence.
• Design, implement, and optimize automated tests for mobile, web, API, and backend systems.
• Apply AI tools in daily work to accelerate testing and improve engineering productivity.
• Identify quality risks early and drive mitigation plans with engineering teams.
• Coach software engineers on testing best practices and quality ownership.
• Promote an “all for quality” mindset across development teams.
• Review requirements, specifications, and product plans to provide early quality feedback.
• Use quantitative and qualitative data to identify quality gaps and improvement opportunities.
• Mentor team members and influence quality engineering practices across teams.

You May Be a Good Fit If You

• Have strong knowledge of QA methodologies, tools, processes, and quality engineering practices.
• Have hands-on experience with test automation frameworks and tools.
• Have strong mobile testing experience, including test design, implementation, optimization, and test management.
• Have experience with functional and non-functional testing.
• Can identify risks, navigate ambiguity, and drive initiatives with ownership.
• Demonstrate strong analytical, problem-solving, and troubleshooting skills.
• Communicate clearly and collaborate effectively with cross-functional teams across locations.
• Have experience working in Agile development environments.
• Are curious about new technologies, AI-powered engineering practices, and modern testing approaches.

Bold Challenges

• Own quality assurance for Mercari products in a fast-paced, customer-focused environment.
• Help make quality an engineering team responsibility, not only a QA responsibility.
• Build quality from the customer’s perspective by understanding issues, analyzing data, and improving processes.
• Influence engineering decisions and improve quality from the earliest stages of development.
• Scale automation and quality practices across mobile, web, API and backend systems.
• Bring AI-native QA practices into real engineering workflows.

Requirements

Required Experience

• 3–10 years of experience in QA, quality engineering, and automation.
• Experience testing mobile applications, including test design, implementation, optimization, and test management.
• Interest in adopting AI-powered engineering practices to improve quality and productivity.
• Experience creating automated tests for at least one of the following platforms:
• Android
• iOS
• Web
• API / backend services
• Hands-on experience in functional and non-functional testing.
• Experience defining test strategies and identifying quality risks across the SDLC.
• Experience designing, implementing, or maintaining automation frameworks.
• Experience improving processes and resolving quality issues within a team.
• Strong communication, collaboration, and problem-solving skills.
• QA experience in Agile Scrum-based development.
• Ability to work independently with ownership and minimal direction.

Preferred Experience

• Experience in backend/API testing and automation.
• Experience working in a CI/CD environment.
• Familiarity with AI-powered testing platforms and modern AI-assisted engineering workflows.
• Experience in web, mobile app, or backend Automation
• Experience in test tool selection, framework development, and automation optimization.
• Experience with e-commerce platforms and services.
• Experience in performance, reliability, security, scalability, resilience, or internationalization testing.
• Experience using data analysis or visualization for QA decision-making.
• Experience testing microservices-based systems.
• Experience mentoring QA engineers or influencing quality practices across engineering teams.

Employment Status

Full-time

Benefits

Office: Bengaluru

• Hybrid workstyle : 2 Days Work From Office
• We believe in high performance and professionalism. Every team will decide the best work style (including remote work) that maximizes your performance.
• To build a strong & highly-engaged organization in India, we highly encourage everyone to work from our Bangalore offices, especially during the initial office setup phase.
• We will continue to review and update the policy to address future organizational needs.