Senior Application Support and Developer

Thundersoft; Penang; Hybrid; MYR 90,000 - 150,000; Full time

Job summary

Thundersoft in Penang seeks a Senior Application Support & Developer to join our hybrid development team. This role balances 50% production support with 50% development to keep manufacturing and quality systems stable and high‑performing.

You will work across legacy and modern platforms, using AI-assisted tools to boost productivity and code quality while delivering reliable, scalable solutions. You will collaborate with QA, infrastructure, and business stakeholders to ensure seamless end-to-end

Qualifications

• Experience with .NET Framework (4.x) and C#.
• RESTful APIs / Web API experience.
• ASP.NET Web Forms and Web Services experience.
• Cloud platforms and services understanding.

Responsibilities

• Provide L1/L2/L3 production support for business-critical applications, including root-cause analysis and long-term corrective actions.
• Own and resolve complex production issues across legacy and modern systems, ensuring minimal downtime and high reliability.
• Design and implement bug fixes, enhancements, and reliability improvements, with an emphasis on maintainability and scalability.
• Leverage AI-assisted development tools (e.g., GitHub Copilot) to accelerate development, debugging, and code reviews.
• Write clean, well-structured, and maintainable code, adhering to established coding standards and best practices.
• Troubleshoot and optimize issues across front-end, back-end, and cloud components.
• Perform and review unit testing, integration testing, and regression testing to ensure system quality.
• Collaborate closely with cross-functional teams (QA, infrastructure, business stakeholders) to support end-to-end application lifecycle.
• Mentor junior team members and provide technical guidance when needed.
• Participate in system design discussions, technical reviews, and production readiness assessments.

Skills

.NET Framework (4.x), C#

RESTful APIs / Web API

ASP.NET Web Forms and Web Services

Cloud

Tools

GitHub Copilot

Job description

We are seeking an experienced Senior Application Support & Developer to join our development team. This hybrid role consists of 50% application support and 50% development, with a strong focus on ensuring the stability, performance, and continuous improvement of our manufacturing and quality systems.

The ideal candidate brings deep hands‑on experience supporting complex production systems, strong full‑stack development skills, and the ability to work independently on both legacy and modern platforms. The role also requires comfort with AI‑assisted development tools (e.g., GitHub Copilot) to improve productivity, code quality, and problem resolution.

Key Responsibilities

• Provide L1/L2/L3 production support for business‑critical applications, including root‑cause analysis and long‑term corrective actions.
• Own and resolve complex production issues across legacy and modern systems, ensuring minimal downtime and high reliability.
• Design and implement bug fixes, enhancements, and reliability improvements, with an emphasis on maintainability and scalability.
• Leverage AI‑assisted development tools (e.g., GitHub Copilot) to accelerate development, debugging, and code reviews.
• Write clean, well‑structured, and maintainable code, adhering to established coding standards and best practices.
• Troubleshoot and optimize issues across front‑end, back‑end, and cloud components.
• Perform and review unit testing, integration testing, and regression testing to ensure system quality.
• Collaborate closely with cross‑functional teams (QA, infrastructure, business stakeholders) to support end‑to‑end application lifecycle.
• Mentor junior team members and provide technical guidance when needed.
• Participate in system design discussions, technical reviews, and production readiness assessments.

Required Skills & Qualifications

Technical Skills

• Strong experience with .NET Framework (4.x), C#, Entity Framework (ORM)
• RESTful APIs / Web API
• ASP.NET Web Forms and Web Services
• Cloud:

Process & Practices

• Strong understanding of SDLC, agile methodologies, and production support best practices
• Proven ability to deliver clean, maintainable, and supportable code in long‑lived systems
• Experience balancing support responsibilities with development delivery

Tools

• Comfortable using AI‑powered development tools (e.g., GitHub Copilot) as part of daily development and troubleshooting

Soft Skills

• Excellent debugging, analytical, and problem‑solving skills
• Strong communication skills with the ability to explain technical issues to non‑technical stakeholders
• Ability to work independently, prioritize effectively, and handle production‑critical situations calmly