Siam Bheasach Co., Ltd.
Senior Cybersecurity Engineer
Skills
9 days ago
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Important information
Contract type:
Permanent
Location:
Bangkok, Thailand
Work mode:
Onsite
Published on:
12 October 2026
What they need
About the role
Serve as the technical lead for Security Operations: govern the quality of the MSSP service, respond to complex incidents, and keep the full set of security tools working together effectively.
Key responsibilities
- Define and track MSSP SLAs/KPIs (MTTD, MTTR, alert quality, false-positive rate)
- Review incident reports and triage quality weekly/monthly, and attend service review meetings
- Define use cases, detection rules and playbooks with the MSSP that fit the pharmaceutical business context
- Make escalation and containment decisions that affect production and warehouse systems
- Lead investigations of high-severity incidents, perform root cause analysis and produce post-incident reviews
- Conduct proactive threat hunting across endpoint, network, cloud and identity, using MITRE ATT&CK as the framework
- Operate, tune and integrate security tools such as SIEM/SOAR, EDR/XDR, NDR, Firewall/NGFW, Email Security, WAF, Vulnerability Management, PAM and CASB/SASE
- Evaluate and select new tools (POC, TCO, vendor management) and reduce tool overlap
- Design security architecture for new projects, including network segmentation between IT and OT/production systems
- Define the policy and prioritization for vulnerability remediation based on actual risk, in coordination with the infrastructure team and system owners
About you
- Bachelor's degree or higher in Computer Science, IT, Cybersecurity or a related field
- At least 5-7 years of experience in Security Operations / Incident Response, including at least 2 years at Tier 2/3 or in a lead role
- Experience working with an MSSP/SOC (on the provider or the customer side) and understanding of SLA management models
- In-depth knowledge of at least 3-4 tool categories, with a working understanding of the others
- Solid understanding of networking, Windows/Linux, Active Directory/Entra ID and cloud (at least one of Azure/AWS/GCP)
- Good English for reading technical documentation and communicating with vendors
- Willing to work outside office hours or respond to emergencies under the defined on-call rotation
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