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Senior Cybersecurity Defensive EngineerAscend Money · Bangkok, Bangkok City, Thailand
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Ascend Money

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Senior Cybersecurity Defensive Engineer

🗓️ Posted 2026-08-31 Bangkok, Bangkok City, Thailand Full-time Hybrid ICT
💰 Salary Not shared 📊 Market THB 100,000–THB 180,000/mo

About the Company

We enable everyone to access innovative financial services leading to better lives. Ascend Money is a leading Southeast Asian fintech company providing innovative payment and financial services across 7 countries (Thailand, Cambodia, Myanmar, Vietnam, Philippines, Indonesia and Malaysia). The company is under Ascend Group, a digital technology business conglomerate providing digital financial, e-commerce, data & cloud services. Established in 2013, Ascend Money became Thailand's first fintech unicorn in 2021. Its flagship service TrueMoney today has become the most popular digital financial application that enables ease of payments and convenient financial lifestyle. TrueMoney's extensive agent network as well as offline and online payment services also enable millions of users across the region to access innovative financial services, leading them to better lives. Financial Services

Responsibilities

  • ● Monitor and analyze security events from SIEM, IDS/IPS, firewalls, and other security tools to detect potential threats and attacks.
  • ● Investigate alerts and incidents, perform root cause analysis, and provide timely response and remediation.
  • ● Develop, document, and execute incident response playbooks and procedures.
  • ● Work closely with Offensive and Architect teams to validate threats, close vulnerabilities, and enhance defensive measures.
  • ● Conduct continuous threat hunting to proactively identify malicious activity within the network and systems.
  • ● Implement and fine-tune security controls, rules, and signatures for detection and prevention systems.
  • ● Maintain and optimize endpoint protection, email security, and data loss prevention (DLP) solutions.
  • ● Support disaster recovery and business continuity testing from a cybersecurity perspective.
  • ● Prepare incident reports, metrics, and dashboards for management and regulators.
  • ● Ensure defensive operations comply with BOT regulations and international standards (e.g., ISO 27001, NIST, PCI-DSS).

Requirements

  • ● Bachelor's or Master's degree in Computer Science, Information Security, or related field.
  • ● Minimum 5 years of experience in cybersecurity operations, SOC analyst, or incident response roles.
  • ● Strong knowledge of network protocols, operating systems, malware behavior, and intrusion techniques.
  • ● Hands-on experience with SIEM platforms (e.g., Splunk, QRadar, ELK), IDS/IPS, and endpoint protection tools.
  • ● Familiarity with threat intelligence platforms and frameworks such as MITRE ATT&CK.
  • ● Good analytical, troubleshooting, and problem-solving skills.
  • ● Strong written and verbal communication skills in both Thai and English.
  • ● Ability to work under pressure and respond effectively during security incidents.
  • ● Expertise in monitoring, detecting, and responding to cyber threats across networks, endpoints, and applications.
  • ● Strong incident response capability, from investigation to remediation.
  • ● Ability to translate threat intelligence into actionable defense improvements.
  • ● Collaborative approach to strengthen the organization's resilience against evolving cyber threats.