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Senior Engineer, Cybersecurity

M1ActiveLocation not disclosed
Estimated monthly salary
~S$6,562 – S$10,000

Job Responsibilities

  • Perform daily monitoring of security incidents and incident response activities
  • Assess security incidents and determine appropriate actions.
  • Deploy, configurate, maintain and upgrade AD, 2FA, TACACS, jump-hosts etc owned by the Security Operations team.
  • Conduct regular vulnerability scans and coordinate with system owners for timely rectifications
  • Review firewall rules and security configurations
  • Evaluate and approve security-related requests (e.g., IAM and user access requests).
  • Ensure that security baselines and hardening guidelines are applied across on-premises, hybrid, and cloud environments to meet corporate and regulatory standard.
  • Conduct readiness preparations for cybersecurity audits such as CyberTrustMark (CTM) and Telecoms CyberSecurity (TCS) code of practice in a telco environment.
  • Conduct proactive threat hunting to identify potential threats.
  • Assist in maintaining M1’s security documentation, including policies, standards, baselines, guidelines, and procedures.
  • Assist the department in achieving business objectives while complying with regulatory requirements and M1 cybersecurity policies.
  • Keep up to date with industry security best practices and align them with business objectives.

Job Requirements

  • Bachelor’s degree in computer science, IT/Engineering or equivalent field
  • Minimum 3 years of experience working in cybersecurity.
  • Professional accreditation not limited to CISSP, GCIA, GCIH and GSEC will be an advantage.
  • Experience with risk management, vulnerability management, threat analysis, security auditing, security monitoring, incident response and other information security practices will be an advantage.
  • Experience with PAM, NDR and EDR will be an advantage.
  • Independent and work well in a team environment
  • Good analytical, problem-solving and critical thinking skills
  • Enjoy working with multiple parties to achieve the desired cybersecurity outcomes.
  • Good oral and written communication skills
  • Able to perform standby/on-call duties.

About M1

M1, a subsidiary of Keppel Ltd., is Singapore’s first digital network operator, providing a suite of communications services, including mobile, fixed line and fibre offerings, to over two million customers. Since the launch of its commercial services in 1997, M1 has achieved many firsts – becoming one of the first operators to be awarded one of Singapore’s two nationwide 5G standalone network license, first operator to offer nationwide 4G service, as well as ultra high-speed fixed broadband, fixed voice and other services on the Next Generation Nationwide Broadband Network (NGNBN). M1’s mission is to drive transformation and evolution in Singapore’s telecommunications landscape through cutting-edge technology and made-to-measure offerings.

Posted 30 Oct 2026