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Senior Application Developer (.NET)

Adecco Staffing & Outsourcing Sdn Bhd

Kuala Lumpur

On-site

MYR 80,000 - 120,000

Full time

Yesterday
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Job summary

A leading staffing agency in Kuala Lumpur seeks a Senior Fullstack Software Engineer with expertise in the MERN stack (MongoDB, Express, ReactJS, NodeJS). This role involves overseeing the complete software development lifecycle, from design to deployment, ensuring scalability and high code quality. Candidates should possess strong skills in HTML, CSS, ReactJS, and relational databases, along with at least 5 years of experience. Proficiency in OOP and experience with multi-factor authentication are also preferred.

Qualifications

  • 6+ years of experience in solution development and design.
  • Strong ability to troubleshoot and resolve coding issues efficiently.
  • Experienced in building complex front-end and back-end applications.

Responsibilities

  • Code, test and debug software programs and meet project plan goals.
  • Work independently to design and develop technical modules.
  • Design, develop, and maintain automated test scripts and frameworks.

Skills

Strong skills in HTML
Strong skills in CSS
ReactJS
NodeJS
Object-Oriented Programming
Database schema design
SQL database experience
Multi-factor authentication
Mobile development (Android and iOS)
Ability to speak Chinese
Ability to speak Japanese
Ability to speak Korean

Education

Bachelor’s degree or equivalent experience

Tools

Playwright
Selenium
Job description
Senior Fullstack Software Engineer (MERN – ReactJS – NodeJS stack)

6 months contract (potentially renewable 6 months)

Responsibilities
  • Code, test and debug software programs and meet project plan goals
  • Be responsible for the full software development lifecycle, including design, programming, system integration testing, and deployment
  • Ensure technical implementations meet agreed requirements and that the design is scalable to support future growth and enhancements
  • Adhere to programming best practices to ensure high code quality, readability and maintainability
  • Align with solution architecture and ensure implementations are compliant with design standards
  • Work independently to design and develop technical modules
  • Troubleshoot and resolve coding issues efficiently to ensure system stability
  • Collaborate with developers, project managers, business analysts, tech leads, and architects to design and document high- and low-level solutions
  • Identify and implement improvements in existing systems and processes
  • Design, develop, and maintain automated test scripts and frameworks using Playwright/Selenium
  • Provide technical support to business users for escalated issues, ensuring timely resolution and minimal disruption
Qualifications
  • Bachelor’s degree or equivalent experience
  • Strong skills in HTML, CSS, and frameworks like React or Angular (additional)
  • Experienced in building complex front-end and back-end applications
  • In-depth understanding of database schema design and extensive experience with relational database management systems (RDBMS)
  • Must have SQL database experience, ability to design tables and schemas based on business logic, create reports and run stored procedures
  • Proficiency in Object‑Oriented Programming (OOP), data structures, algorithms, and design patterns
  • Over 5 years of experience in solution development and design
  • Experience in implementing multi‑factor authentication; mobile development (Android and iOS) is a plus
  • Ability to speak Chinese, Japanese or Korean is preferred
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