Security Systems Engineer

14 hours ago


Kowloon, Hong Kong SAR China OneAsia Network Limited Full time

About OneAsia OneAsia is a leading IT services and solution provider in Asia, offering cloud‑based solutions and data center services. Our top‑tier rated data centers across Asia deliver consistent quality, security, and service. Partnering with industry leaders, we provide a full range of solutions from infrastructure to managed services. Flexibility, reliability, and security are at the core of our values. Join us and be part of a team driving innovation in IT infrastructure and cybersecurity. Role This is a hands‑on role that blends security engineering, system administration, and automation for both internal and client solutions. You will help strengthen OneAsia’s infrastructure while designing and delivering enterprise‑grade security solutions for our clients. Key Responsibilities Design, deploy and maintain cybersecurity systems and controls Deploy, configure, and document security solutions (SIEM, EDR/XDR, IAM, etc.) customized to client requirements Conduct vulnerability assessments, support penetration testing and compliance audits Perform security incident investigation, response coordination, and remediation Develop automation scripts and infrastructure‑as‑code to enhance security posture and operational efficiency Requirements Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, or related fields Minimum 4 years of hands‑on experience in cybersecurity, infrastructure security, or security engineering Deep knowledge of Windows and Linux system administration, networking (TCP/IP, firewalls, VPN), and core security concepts Excellent communication skills – able to explain complex technical topics to technical and non‑technical audiences Fluent in spoken and written English and Cantonese (Mandarin is an advantage) Relevant professional certifications preferred (e.g., CISSP, CISM, CCSP, CEH, AWS/Azure security certifications, CompTIA Security+, etc.) Preferred Experience Hands‑on operation of SIEM platforms and SecOps workflows (detection engineering, incident triage, threat hunting) Deployment and management of high‑availability and critical systems Scripting/programming skills (Python, PowerShell, Bash) for security automation Proficiency with infrastructure‑as‑code and automation tools (Terraform, Ansible, Puppet, etc.) Experience with EDR/XDR, WAF, cloud‑native security controls (AWS GuardDuty, Azure Defender, etc.) Previous client‑facing consulting, professional services, or managed security services (MSSP) background Why Join Us? At OneAsia, you will gain hands‑on experience in cutting‑edge security technologies and work in a dynamic environment. We offer an attractive remuneration package, including a 5‑day work week, performance bonus, medical insurance (with dental benefits), and more. How to Apply Interested candidates, please send your full resume, stating your current and expected salary, to our Human Resources Department by clicking “Apply Now.” Equal employment opportunities apply to all applicants. Data collected will be used exclusively for recruitment purposes. #J-18808-Ljbffr



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