Frontend Developer

Key Skills/ Knowledge:

• Experience with React or any JS frontend frameworks
• Experience with, HTML5, CSS3 and CSS pre-processor like SASS or LESS.
• Proficient in JavaScript, including DOM manipulation
• Understanding of React and its core principles
• Experience with React workflows (such as Redux)
• Familiarity with the newer specification of JavaScript (ES6 or newer)
• Experience working with JSON
• Experience building accessibility compliant web applications
• Familiarity with code versioning tools (git)
• Familiarity with browser testing and debugging
• Familiarity with unit testing
• Experience working in an Agile environment
• Ability to understand business requirements and translate them into technical requirements

Work Responsibilities

• What You’ll Do:
• Engineers will develop and improve features for products such as WebView pages called from within Mercari’s web version and native app, along with tools used by the Customer Support Team for answering user inquiries and providing transaction support.
• Senior engineers in the Frontend Team are expected to use their technical skills to lead the team and product development, train members through design and code reviews, and make contributions and improvements to the hiring process, including technical tests.
• Development Environment:
• Languages: HTML, CSS, JavaScript, TypeScript, React, Gatsby, Next.js, GraphQL, Apollo Client, Redux, Cypress, Rendertron, Lit, Playwright
• Infrastructures: Google Cloud Platform (Compute Engine, Kubernetes Engine, App Engine)
• Configuration management tool: Terraform
• Other: Circle CI, GitHub, Slack, JIRA, Crowi, Spinnaker, Datadog

Minimum Requirements

• Shared understanding and belief in Mercari Group's mission and values
• At least 3 years of experience in development related to frontend fields such as web browsers, JavaScript, TypeScript, React.js, Next.js, or Redux
• Experience with developing and operating large-scale products
• Ability to design and develop with performance and scalability in mind
• Ability to use HTML and CSS to implement solid user interfaces
• Knowledge of JavaScript and experience developing with UI libraries or frameworks such as React, Vue.js, and Angular
• Able to understand and explain web operation principles and browsers
• Understanding of version management and ability to participate in development via Git
• Effective communication skills, needed for product development with team members and with other teams

Preferred Requirements

• Extensive knowledge of standard web technologies and specialized knowledge in some areas, like TypeScript, React.js, Next.js, Redux
• Understanding of the characteristics of different libraries/frameworks and the ability to introduce them to projects where necessary
• Ability to design architecture based on the characteristics of the app
• Ability to consistently take initiative in implementing improvements to the app
• Project management and/or team leadership
• Cloud development experience (preferably GCP or AWS)
• Experience contributing to an open-source project
• Familiarity with CI systems and the release process

Working Conditions

Employment Status

Full-time

Office

Bangalore

• Hybrid Workstyle

The ideal candidate will be responsible for designing, developing, testing, and debugging responsive web applications for the company. Using Angular / React / JavaScript this candidate will be able to translate user and business needs into functional frontend design.

Responsibilities

• We use React for web application.
• Designing, developing, and testing UI for mobile and web applications
• Build reusable code and libraries for future use
• Accurately translate user and business needs into functional frontend code

Qualifications

• 3+ years' experience in frontend development
• Experience building mobile/web applications using Angular or React or JavaScript.

Required Skills:

• Experience with React JS and Redux.
  • A background in building JavaScript UI applications, with a strong understanding of UI frameworks and paradigms available including concepts like asynchronous programming, closures, types, and ES6.
  • HTML/CSS experience, including concepts like layout, specificity, cross-browser compatibility, and accessibility
  • Experience with browser APIs and optimizing front-end performance. Understand the full web technology stack, e.g. HTML, CSS, HTTP, cookies, headers, asset loading / caching.
  • Have a deep understanding of frontend application structure and architecture
  • Have great customer empathy and appreciate the User’s experience
  • Experience with unit testing, using test frameworks like Jest, Mocha, Enzyme etc.
  • Experience in Web Development end-to-end, from design to release.
  • Experience or aspiration to be a full stack developer(Node.js).

Requirements

• 2-5 years of experience as a front-end developer
• Experienced in developing applications using JavaScript, ReactJS, Redux, Redux Saga, NodeJS, HTML5, CSS3/CSS4 and other UI technologies.
• Understanding and experience with ES6 concepts, asynchronous processing, partial page refresh, DOM traversal and manipulation.
• Experience with REST API construction, documentation, and architecture, including API description languages like Swagger.
• Comfortable writing Unit Test Cases (Enzyme/ Jest)
• Familiar with cloud services: AWS, Dev-ops such as Git, Jira, Confluence
• Good to have experience/knowledge of
  • Spring (MVC, IOP/DI, REST, Security)
  • Docker,
  • Scala,
  • Python
• Able to connect the dots between code and business value

Responsibilities

• Engage in high level conversations about business strategy and the role tech plays in it
• Write well-designed, testable, and efficient code that powers our application
• Write specs and do planning for everything we build
• Conduct application analysis, testing, and debugging
• Diligently document code to keep it clean and transparent
• Ensure cross-browser and device compatibility

You Are

• You believe it’s always on you to make sure anything you do is a success.
• You have the ability to make quick and effective decisions.
• In love with a challenge. You revel in solving problems and want a job that pushes you out of your comfort zone.
• Open to change. You’re inspired by the endless ways in which everything we do can always be improved.

Add-Ons/Interview Process

• You should be comfortable working in a Start-up for in-house product development.
• Will not be engaged with any Client, but with the internal team (in India & the US).
• Will be provided a hands-on exercise to complete and submit as a part of interview.

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end
• Collaborate with other team members and stakeholders

• Responsible for development of new highly-responsive, web-based user interface
• Construct visualizations that are able to depict vast amounts of data
• Work and collaborate with the rest of the engineering team
• Work with product team and graphic designers
• Learn and understand user interactions
• Develop a flexible and well-structured front-end architecture, along with the APIs to support it