Hybrid Frontend Engineer – Forecasting and Replenishment

at Siam Makro Public Company Limited

• Job title: Frontend Engineer – Forecasting and Replenishment
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: No Education Requirement
• Tech skills: JavaScript, Material UI, React, Redux, TypeScript
• Location requirements: Hybrid, Bangkok, Thailand

About the role

• Frontend Engineer building and improving web applications for the Forecasting and Replenishment team at Makro. Collaborating with backend engineers to create user-friendly interfaces.

Responsibilities

• Build and maintain React applications using TypeScript with strong attention to usability, performance, and maintainability.
• Implement end-to-end user workflows for FNR systems (for example parameter setup, proposal review and approvals, dashboards, and exception handling).
• Collaborate with Backend Engineers to design and consume APIs effectively, including pagination, filtering, search, and error handling.
• Translate requirements into clean UI architecture: reusable components, predictable state management, and consistent UX patterns.
• Build data-heavy screens including tables, filters, forms, charts, and drill-down views with a strong focus on clarity and speed.
• Implement role-based access and authentication flows as required by internal systems.
• Ensure high quality through testing, code reviews, and disciplined release practices.
• Improve frontend developer experience: component standards, documentation, performance budgets, and reducing UI regressions.
• Work with stakeholders to iterate quickly through demos and feedback loops, while keeping the UI stable and consistent.

Requirements

• Strong experience with TypeScript and React in production environments.
• Solid understanding of HTML, CSS, responsive layout, and modern browser behavior.
• Experience building complex, data-driven interfaces (tables, forms, filters, CRUD flows, dashboards).
• Experience integrating with REST APIs and handling client-side concerns such as loading states, caching, retries, and error messaging.
• Good understanding of frontend architecture concepts such as component design, state management patterns, and code organization.
• Familiarity with frontend testing practices (unit tests and integration tests) and ability to write maintainable tests.
• Strong debugging skills and ability to diagnose issues across UI, network, and API layers.
• Clear communication and collaboration skills, able to work with engineers and non-technical stakeholders.
• Experience with common React ecosystem tools such as React Query, Redux Toolkit, Zustand, or similar state/data management libraries.
• Experience with UI component libraries (Material UI, Ant Design, Chakra UI, or similar) and designing reusable component systems.
• Experience building charts and analytics views (for example Recharts, Chart.js, ECharts, or similar) with correct data representation.
• Experience with performance optimization: bundle size reduction, memoization strategies, virtualized lists, and rendering profiling.
• Experience with accessibility best practices and UI quality standards.
• Familiarity with CI/CD pipelines for frontend projects and release automation.
• Experience working in supply chain, retail, or operations-heavy domains.

Benefits

• Health Insurance – At Makro PRO, we care about your health! Group insurance from a top insurance company is included in your benefits—OPD, IPD, Emergency OPD
• Provident Fund – Makro PRO cares about your long-term plan! We offer 3% provident fund.
• Year-end bonus – We include variable and performance bonus for our employees.
• Gym Facilities – Our Head office has a fitness center, yoga room, and recreational space. Enjoy Bangkok scenery and work your body!
• Attractive Vacations days – Enjoy our attractive annual leave. Let’s say the minimum is 18 days!
• No overtime – We work 5 days a week with. We set our own goals and deadlines.
• Cool hardware – New MacBook. The tool to help you be the best of yourself.
• Free car parking space – No more stress or extra cost if you drive to work. We offer free parking space for our employees.
• Best Culture
• Clear focus.
• Diverse Workplace (Our members are from around the world!)
• Thai and Non-Thai are both welcome!
• Non-hierarchical and agile environment
• Growth opportunity and career path