Build and maintain responsive React applications with reusable JSX components, state management, REST API integrations, performance optimization, and automated testing. Collaborate with design, backend engineering, and QA teams to deliver reliable user experiences. The role involves Java and Spring Boot API integration, responsive design, accessibility, routing, validation, troubleshooting, and defect resolution.
- Responsible for designing, building, and maintaining responsive, high-performance front-end applications using React.js, while integrating with Java/Spring Boot REST APIs. This role focuses on creating modular UI components, implementing state management, ensuring quality through testing, and collaborating with design and back-end teams to deliver reliable user experiences.
- Roles and Responsibilities
- Build modular, reusable, and testable UI components (e.g., forms, buttons, dashboards) using JSX.
- Translate wireframes and UI designs into fully functional, responsive, and interactive front-end code.
- Implement state management using Redux and/or Context API and manage application behavior using React Hooks (e.g., useState, useEffect).
- Integrate front-end components with back-end services using RESTful APIs, including Java/Spring Boot API services.
- Optimize application performance using techniques such as code-splitting, lazy loading, and efficient rendering patterns.
- Write and maintain unit and integration tests using tools such as Jest and React Testing Library; troubleshoot and fix defects to ensure quality.
Requirements
- Proficiency with HTML5, CSS3, and React.js.
- Experience building component-based UI using JSX and modern React patterns (Hooks).
- Working knowledge of state management approaches (Redux and/or Context API).
- Experience integrating UI with RESTful APIs, including back-end services built with Java and Spring Boot.
- Experience with version control (Bitbucket) and modern front-end tooling (Webpack or Vite) and package managers (npm or yarn).
- Experience writing and maintaining unit/integration tests using Jest and React Testing Library.
- Familiarity with client-side routing using React Router.
- Familiarity with schema-based validation libraries such as Yup and Zod.
- Preferred Attributes
- Experience with TypeScript.
- Experience with Next.js and server-side rendering (SSR).
- Strong understanding of responsive design, accessibility, and cross-browser compatibility.
- Performance tuning experience for React applications (render optimization, bundling strategies).
- Strong collaboration skills to work effectively with UI/UX, back-end engineering, and QA stakeholders. - Certifications
- React or modern front-end framework certification (vendor or recognized training provider).
- Java and/or Spring Boot certification (e.g., Oracle Java, VMware Spring).
- Cloud or DevOps certification (optional; role-dependent).
Technopals Pte.Ltd. Singapore Office
Similar Jobs
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Supports Mastercard client accounts and business growth by developing account plans, identifying commercial opportunities, creating proposals, analyzing business performance and market trends, and translating insights into actionable strategies. Partners with the Singapore Country Manager and cross-functional teams to execute client initiatives, activate products and services, improve performance, and maintain client satisfaction.
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Lead market-wide payments strategy and execution initiatives across Asia Pacific. Identify opportunities, develop proposals, build financial models, quantify value, align senior stakeholders, secure approvals, and oversee program launches. The role requires consulting expertise, strong analytics, executive communication, cross-functional leadership, and the ability to translate complex data into strategic recommendations for payments and retail banking markets.
Top Skills:
ExcelPowerPoint
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Leads Mastercard’s Asia Pacific customer engagement and performance strategy across fraud, compliance, transaction processing, and payment risk. Manages a distributed franchise team, oversees customer reviews and risk training, addresses vulnerabilities, supports stakeholder and law-enforcement engagement, identifies risk-services sales opportunities, and develops customer relationships. The role requires strategic leadership, strong analytical and communication skills, extensive payments or risk experience, and periodic regional travel.
Top Skills:
Mastercard Payment NetworkMastercard Products And ProgramsMis Analysis
What you need to know about the Singapore Tech Scene
The digital revolution has driven a constant demand for tech professionals across industries like software development, data analytics and cybersecurity. In Singapore, one of the largest cities in Southeast Asia, the demand for tech talent is so high that the government continues to invest millions into programs designed to develop a talent pipeline directly from universities while also scaling efforts in pre-employment training and mid-career upskilling to expand and elevate its workforce.
