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.
About the role
- Senior UI Engineer designing and shipping user interfaces for data-intensive products using React and TypeScript. Focus on performance, reliability, and AI insights in day-to-day decisions.
Responsibilities
- Build and maintain portal and dashboard interfaces using React and TypeScript.
- Create and evolve data views and workflows using tools such as Dash, Domo, and Snowflake (or similar platforms).
- Improve performance and reliability so features stay fast and stable at high data volumes.
- Integrate the UI with inference and analytics APIs and ensure data is presented clearly and responsibly.
- Implement secure, privacy-aware UI patterns, including role-based access controls.
- Partner with ML and data teams to turn model outputs into intuitive, accessible user experiences.
- Support delivery and operations for front-end services (build/release pipelines, monitoring, and on-call/incident response as needed).
- Contribute to shared UI components, design standards, and tooling that improves developer experience.
Requirements
- Strong experience building production UIs with React and TypeScript.
- Experience with at least two of the following (or similar): Dash, Domo, Snowflake UI tooling, or other data visualisation/BI platforms.
- Experience building dashboards or data-heavy tools where performance and reliability matter (for example, environments with latency/availability targets).
- Working knowledge of backend services (for example Python or Java) so you can debug issues end-to-end and collaborate effectively with backend teams.
- Familiarity with data visualisation libraries such as D3, Plotly, ECharts, or similar.
- Able to take initiative, communicate clearly, and work effectively with partners across engineering, product, and data science.
- Familiarity with modern delivery and security practices (for example CI/CD, deployment patterns, and secure-by-default engineering).
- Comfortable learning new tools and occasionally working outside your primary area when needed.
Benefits
- Generous holiday allowance with the option to buy additional days
- Health screening, eye care vouchers and private medical benefits
- Wellbeing programs
- Life assurance
- Access to a competitive contributory pension scheme
- Save As You Earn share option scheme
- Travel Season ticket loan
- Electric Vehicle Scheme
- Optional Dental Insurance
- Maternity, paternity and shared parental leave
- Employee Assistance Programme
- Access to emergency care for both the elderly and children
- RECARES days, giving you time to support the charities and causes that matter to you
- Access to employee resource groups with dedicated time to volunteer
- Access to extensive learning and development resources
- Access to employee discounts scheme via Perks at Work
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
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