Senior Full Stack Web Developer

ST ENGINEERING INFO-SECURITY PTE. LTD.; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A leading technology company in Singapore is seeking a Senior Full Stack Developer with at least 4 years of hands-on experience in web application development. This role involves developing and managing API integrations, ensuring scalability, security, and performance. Candidates should be proficient in Node.js, TypeScript, and related technologies. The position offers opportunities to work in an Agile environment and requires a commitment to quality through rigorous unit testing.

Qualifications

• Minimum of 4 years in web application development.
• Proficiency in Node.js, TypeScript, Express, Next.js, MongoDB.
• Experience with cybersecurity, networking, and virtualization knowledge.

Responsibilities

• Develop and manage connections with APIs.
• Ensure product scalability and optimize performance.
• Participate in Agile ceremonies.

Skills

Node.js

TypeScript

Express

Next.js

MongoDB

Team player

Independent problem solver

Tools

VMWare

CloudFormation

Ansible

Terraform

Puppet

Job description

Overview

We are seeking an experienced Senior Full Stack Developer with at least 4 years of hands‑on experience in web application development. This role demands a proactive individual skilled at building and managing integrations with internal and external APIs, ensuring high standards of scalability, security, and performance. You will collaborate closely with Product Owners and Designers to ensure smooth data flow between backend services and the application’s user interface in an Agile environment. Your attention to detail and commitment to quality will be reflected through rigorous unit testing and adherence to best practices.

Responsibilities

• Develop, integrate, and manage robust connections with internal and external APIs.
• Ensure product scalability, maintain high security standards, and optimize performance.
• Work closely with Product Owners and Designers to support seamless data flow between backend services and app UI.
• Actively participate in Agile ceremonies and contribute to an iterative development process.
• Write and maintain unit tests to uphold code quality and reliability.

Requirements

• Experience: Minimum of 4 years in web application development.
• Proficiency in Node.js, TypeScript, Express, Next.js, MongoDB.
• Team player and independent problem solver.

Preferred Skills

• Cybersecurity & Networking: Knowledge of networks, firewalls, VPNs, subnets, and DNS.
• Virtualization: Familiarity with platforms such as VMWare, vCenter, Proxmox, and storage configurations.
• AI & ML Tools: Exposure to AI tools, including Large Language Models (LLMs), Retrieval‑Augmented Generation (RAG), prompt engineering, AutoGen, embeddings, and vector databases.
• Infrastructure as Code: Experience with infrastructure management tools such as AWS CloudFormation, Ansible, Terraform, and Puppet.

Work location: Jurong East