Frontend Engineer - Forecasting and Replenishment

About the Role

The Frontend Engineer will build and improve web applications used by the Forecasting and Replenishment (FNR) team at Makro PRO. Focus on creating reliable, fast, and easy-to-use interfaces for business users managing replenishment parameters, reviewing order proposals, monitoring exceptions, and taking action. Work closely with Backend Engineers, Product, and business stakeholders to deliver production-grade features with real operational impact.

Responsibilities

• Build and maintain React applications using TypeScript with attention to usability, performance, and maintainability.
• Implement end-to-end user workflows for FNR systems (parameter setup, proposal review and approvals, dashboards, 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 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.

Qualifications

• 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.
• Experience with UI component libraries (Material UI, Ant Design, Chakra UI, or similar) and designing reusable component systems.
• Experience building charts and analytics views (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 is a plus.

Benefits

• Health Insurance: group insurance covering OPD, IPD, Emergency OPD.
• Provident Fund: 3% provident fund.
• Year-end bonus: variable and performance bonus.
• Gym facilities at head office: fitness center, yoga room, and recreational space.
• Attractive vacation days: minimum 18 days annual leave.
• No overtime: 5 days a week; set own goals and deadlines.
• Cool hardware: New MacBook provided.
• Free car parking space for employees.

Additional Information

• Best culture: clear focus, diverse workplace, Thai and Non-Thai welcome.
• Non-hierarchical and agile environment.
• Growth opportunity and clear career path.