Fullstack Engineer

User Experience Researchers Pte Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

User Experience Researchers Pte Ltd in Singapore recruits a senior full-stack engineer to lead frontend and backend work using Next.js and Java Spring Boot. You’ll design scalable RESTful APIs, architect cloud-native solutions on AWS, and collaborate with UX designers to deliver robust, accessible UI/UX.

The role requires 5+ years of experience and strong React/TypeScript, SQL/NoSQL, and familiarity with CI/CD, testing, and agile practices.

Qualifications

• 5+ years of professional software development with full-stack capability.
• Strong expertise in Next.js and Java Spring Boot.
• Proficient in JavaScript/TypeScript, HTML5, CSS3.
• Experience building RESTful APIs and microservices.
• Experience with AWS services and CI/CD practices.

Responsibilities

• Lead the development of complex frontend applications using Next.js.
• Design and develop robust backend services with Spring Boot/Node.js.
• Architect and implement responsive, accessible UIs and cloud-native solutions on AWS.
• Lead database design across relational and NoSQL systems.
• Collaborate with UX designers to translate requirements into solutions.
• Champion code quality, testing, and documentation; participate in agile ceremonies.
• Implement and maintain CI/CD pipelines; troubleshoot production issues.

Skills

Next.js

Java Spring Boot

JavaScript/TypeScript

RESTful APIs

UI/UX collaboration

CI/CD

Agile

Problem solving

Cross-functional teamwork

Tools

AWS Lambda

AWS ECS/EKS

AWS RDS

AWS EC2

AWS S3

SQL

NoSQL

GraphQL

Job description

Key Responsibilities:

• Lead the development of complex frontend applications using Next.js, ensuring high performance, reusability, and scalability.
• Design and develop robust, scalable backend services using Java Spring Boot and/or Node.js Express, architecting RESTful APIs and microservices following best practices.
• Architect and implement responsive, accessible, and performant user interfaces that deliver exceptional user experiences.
• Design and implement cloud-native solutions using AWS services, including serverless architecture and container orchestration.
• Lead the design and implementation of database schemas and data models across relational and NoSQL databases.
• Collaborate with UX designers and other stakeholders to translate business requirements into full-stack technical solutions, owning API contracts across the stack.
• Champion best practices across the full stack, including code quality, testing, and documentation.
• Participate in agile ceremonies and contribute to technical planning and architecture discussions.
• Implement and maintain CI/CD pipelines.
• Troubleshoot and debug production issues across frontend and backend systems whilst maintaining system stability.

Required Skills and Experience:

• 5+ years of professional software development experience with demonstrated fullstack capability.
• Strong expertise in Next.js, including state management solutions and modern React patterns.
• Strong expertise in Java Spring Boot with extensive experience building RESTful APIs and microservices.
• Profound understanding of JavaScript/TypeScript, HTML5, and CSS3.
• Proven experience with AWS services including Lambda, ECS/EKS, RDS, EC2, and S3.
• Proficient in SQL with experience across both relational and NoSQL databases.
• Strong understanding of software design patterns and principles (SOLID, DRY, etc.).
• Experience with frontend and backend testing frameworks and methodologies.
• Experience with frontend build tools, package managers, and version control systems.
• Experience working in agile environments with continuous integration/continuous deployment (CI/CD).
• Excellent problem-solving skills and attention to detail.
• Strong communication skills and experience working in cross-functional teams.

Good to Have:

• Experience with AWS services and cloud infrastructure, including AWS certifications (Solutions Architect, Developer).
• Knowledge of container orchestration platforms, particularly Kubernetes or Amazon EKS.
• Experience with micro-frontend architecture.
• Understanding of server-side rendering and static site generation.
• Experience with message queuing systems (Kafka, RabbitMQ).
• Experience with event-driven architecture and reactive programming.
• Experience working on Singapore Government IT projects.
• Hands-on experience with SingPass and CorpPass integration.
• Familiarity with Singapore Government Technology Stack (SGTS).
• Experience implementing government security policies and guidelines.
• Knowledge of government digital service standards and best practices.
• Experience with performance monitoring and optimization tools (CloudWatch, ELK Stack, Prometheus, Grafana).
• Experience with GraphQL.
• Contributions to open-source projects.