Senior Backend Engineer - VPN & SaaS APIs

SENGA AI ENTERPRISE; Kuala Lumpur; On-site; MYR 60,000 - 80,000; Full time

Job summary

A technology company in Kuala Lumpur is looking for a skilled back-end developer to design and develop core business systems, APIs, and server-side logic. You will maintain back-end modules for their VPN and SaaS products, ensuring data security and system stability. Candidates must have a Bachelor’s degree in Computer Science and be proficient in PHP along with other programming languages. Familiarity with database systems and strong skills in collaboration are key to this role.

Qualifications

• Bachelor’s degree or above in Computer Science or a related field, or equivalent practical experience.
• Proficient in PHP (Laravel / ThinkPHP), and familiar with at least one other programming language.
• Experienced with MySQL, Redis, and message queue systems such as RabbitMQ/Kafka.
• Strong understanding of microservices architecture, RESTful APIs, modular design, and high-concurrency optimization.
• Experience in VPN, SaaS, or security-related system development is a plus.
• Knowledgeable in common security vulnerabilities and mitigation techniques.
• Proficient with Git version control and Linux-based deployment environments.
• Strong sense of code quality, documentation, and team collaboration.

Responsibilities

• Design and develop core business systems, APIs, and server-side logic.
• Develop and maintain back-end modules for the company’s VPN, IM, and SaaS products.
• Design and maintain database structures to ensure data security and access performance.
• Participate in high-concurrency architecture design and performance optimization.
• Conduct code security audits and implement protection measures.
• Develop backend service modules including user authentication and billing systems.
• Prepare technical documentation such as API specifications and deployment guidelines.
• Collaborate with front-end, DevOps, and security teams.

Skills

PHP (Laravel / ThinkPHP)

MySQL

Redis

Java

Python

Go

Git version control

Linux-based deployment

Education

Bachelor's degree in Computer Science or related field

Tools

RabbitMQ

Kafka

Job description

A technology company in Kuala Lumpur is looking for a skilled back-end developer to design and develop core business systems, APIs, and server-side logic. You will maintain back-end modules for their VPN and SaaS products, ensuring data security and system stability. Candidates must have a Bachelor’s degree in Computer Science and be proficient in PHP along with other programming languages. Familiarity with database systems and strong skills in collaboration are key to this role.