Software Engineer – Fullstack

Mercari, Inc.

Full Stack Engineer at Mercari developing scalable web applications and mentoring junior engineers. Join a global tech company focused on transforming its marketplace with technology.

Posted 4/15/2026full-timeBengaluru • 🇮🇳 IndiaMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

Distributed SystemsGoGraphQLJavaJavaScriptJestMicroservicesMochaMySQLNext.jsNode.jsNoSQLPostgresPythonReactSQL

About the role

Key responsibilities & impact

Design, develop, and maintain scalable full-stack web applications using modern frontend and backend technologies.
Architect complex user interfaces with React/Next.js and design robust backend systems and APIs.
Write comprehensive unit, integration, and E2E tests for both frontend and backend components.
Lead technical planning, conduct code reviews, and ensure adherence to high standards for performance and security.
Guide junior engineers, fostering their growth through technical leadership and collaborative problem-solving.
Improve application performance on the client side and optimize database queries and server-side logic on the backend.
Integrate AI-powered development tools into the workflow to increase team productivity and code quality.

Requirements

What you’ll need

5 to 8 years of professional software development experience across the full stack.
Expert-level proficiency in React and Next.js framework.
Strong experience in backend languages (e.g., Go, Node.js, Java, or Python) and building RESTful or GraphQL APIs.
Proficiency with SQL (PostgreSQL, MySQL) and/or NoSQL databases, including schema design and query optimization.
Experience with testing frameworks such as Jest, React Testing Library, and backend testing suites (e.g., PyTest, Mocha, or Go testing).
Proven ability to design distributed systems, microservices, and scalable frontend architectures.
Bachelor’s degree in Computer Science, Engineering, or a related field.

Benefits

Comp & perks

Comprehensive health insurance for you and your family
Hybrid work arrangements and a focus on work-life balance
Structured professional development and opportunities to move into next roles
Access to the latest tools, learning resources, and conferences to keep your skills sharp.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

ReactNext.jsGoNode.jsJavaPythonRESTful APIsGraphQL APIsSQLNoSQL

Soft Skills

technical leadershipcollaborative problem-solvingcode reviewsmentoring

Certifications

Bachelor’s degree in Computer ScienceBachelor’s degree in Engineering