Senior Software Engineer

UFINITY Pte Ltd.; Singapore; On-site; SGD 75,000 - 100,000; Full time

Job summary

A technology company in Singapore is looking for a Full-Stack Developer to design and maintain applications with a strong focus on Next.js and AWS integration. The ideal candidate has at least 5 years of experience in software development, particularly in building RESTful APIs and interactive map-based applications. Responsibilities include collaborating with UI/UX designers and optimizing applications for AWS cloud environments. The role offers opportunities to work in an agile team focused on delivering high-performance web solutions.

Qualifications

• Minimum 5 years of relevant software development experience.
• Strong proficiency in Next.js, including SSR and SSG.
• Hands-on experience with AWS services such as OpenSearch and Lambda.

Responsibilities

• Design, develop, and maintain full-stack applications.
• Build interactive map-based applications using mapping libraries.
• Optimize applications for scalability and cost-efficiency.

Skills

Next.js proficiency

RESTful APIs implementation

JavaScript/TypeScript

Node.js backend development

AWS services knowledge

CI/CD pipelines

Problem-solving skills

Education

Degree or Diploma in Computer Science or related fields

Tools

Leaflet.js

Docker

AWS Lambda

GitHub Actions

Job description

Responsibilities:

• Design, develop, and maintain full-stack applications with Next.js for the frontend and modern backend frameworks for APIs.

• Good knowledge in implementing RESTful APIs that integrate with AWS services and external systems.

• Build interactive map-based applications using Leaflet.js (or similar mapping libraries), including integration with geospatial APIs and AWS datasets.

• Collaborate with UI/UX designers to deliver responsive, accessible, and high-performance web interfaces.

• Optimize applications for scalability, observability, and cost-efficiency in an AWS cloud-native environment.

• Work with QA and DevOps teams to ensure test automation, CI/CD pipelines, and reliable deployments.

• Document system architecture, API specifications, and deployment workflows.

• Apply security best practices and ensure compliance with AWS security standards.

Requirements

• Minimum 5 years of relevant software development experience.

• Degree or Diploma in Computer Science, Software Engineering, Information Technology, or related fields.

• Strong proficiency in Next.js (React framework), including SSR (server-side rendering), SSG (static site generation), and API routes.

• Solid experience designing and consuming RESTful APIs (GraphQL knowledge is a plus).

• Proficiency in JavaScript/TypeScript for both frontend and backend development.

• Backend experience with Node.js (Express, NestJS, or similar).

• Hands-on experience with AWS services, including:
  Amazon OpenSearch Service (search and analytics)
  AWS Lambda, API Gateway, and S3 for serverless and storage solutions

• Familiarity with Leaflet.js or similar mapping libraries for geospatial applications.

• Experience with CI/CD pipelines (GitHub Actions, GitLab CI) and Git workflows.

• Understanding of containerization and orchestration (Docker, ECS, or Kubernetes on AWS).

• Strong problem-solving skills and ability to deliver in an agile team environment.