Senior Frontend Developer( React Js)

Singapore 1 days agoContractor External
Negotiable
Job Description – Frontend Developer (ReactJS) Open Position: 1 Location: Singapore Employment Type: Contract Role Overview We are seeking an experienced Frontend (ReactJS) Developer to design and develop scalable, high-performance web applications within a cloud-native enterprise environment. The ideal candidate will have strong expertise in modern JavaScript frameworks, performance optimization, and DevOps-integrated frontend delivery. This role requires close collaboration with backend engineers, DevOps teams, and business stakeholders to deliver highly available and production-ready applications. Key Responsibilities • Design, develop, and maintain responsive web applications using ReactJS. • Build reusable UI components and front-end libraries for scalability. • Implement modern state management using Redux / Flux architecture. • Optimize applications for maximum speed, scalability, and performance. • Develop and maintain automated unit and integration tests using Mocha and Jest. • Integrate frontend applications with RESTful APIs and microservices. • Collaborate with backend teams in cloud-native environments. • Participate in CI/CD pipelines and DevOps-driven release cycles. • Ensure cross-browser compatibility and mobile responsiveness. • Implement best practices in frontend security, accessibility, and coding standards. • Contribute to Agile ceremonies and technical design discussions. Required Skills & Experience • Degree in IT, Computer Science, Engineering, or related discipline. • Minimum 5+ years of frontend development experience. Strong expertise in: • JavaScript (ES6+) • HTML5 & CSS3 • ReactJS • Redux / Flux • Webpack • Enzyme • Experience with performance testing frameworks such as: • Mocha • Jest • Experience building scalable, enterprise-grade web applications. • Experience working with REST APIs and backend integrations. Cloud & DevOps Experience • Exposure to cloud-native platforms such as: • Kubernetes • OpenShift • Docker Enterprise • Cloud Foundry • Understanding of containers, build systems, and infrastructure automation. • Experience working in CI/CD environments. • Familiarity with Infrastructure-as-Code concepts is a plus. Preferred Skills • Mobile application development experience (React Native preferred). • Experience building highly available production systems. • Exposure to monitoring and observability tools. • Experience in banking or financial services domain is an advantage. Methodology • Strong experience in Agile / Scrum environments. • Understanding of DevOps engineering practices. • Strong problem-solving and communication skills. PERSOL Singapore Pte Ltd • RCB No. 200007268E EA License No. 01C4394 • EA Registration No. R1113321 (Jacob Tijo)