Senior Information Security Specialist

Singapore Telecommunications Limited; Singapore; On-site; SGD 90,000 - 140,000; Full time

Job summary

Singtel is seeking a Senior Information Security Specialist in Singapore to support our cybersecurity ecosystem. You will work hands-on with security tooling, collaborate with IT teams, and ensure alignment with IT controls and regulatory requirements.

The role emphasizes continuous improvement, cost awareness, and stakeholder collaboration. You will be a subject matter expert for the technology stack, help uplift security posture, and drive secure deployments across on-prem and cloud

Qualifications

• Bachelor’s degree in computer science, cyber security, or related field.
• 3–6 years in cybersecurity, with at least 2 years in telco or enterprise IT.
• Hands-on design, admin or deployment of IT infrastructure with security hardening.
• Experience hosting apps on-prem and in AWS/Azure.
• IAM concepts like Active Directory and MFA.
• Strong analytical and communication skills.
• Teamwork and customer-service orientation.
• Knowledge of CIS Controls or other cybersecurity frameworks.
• Understanding of Change Management processes.

Responsibilities

• Support uptime of tools used by CISO Singtel Singapore Cyber Security Engineering.
• Collaborate with IT teams to deliver on time and on budget.
• Assess adequacy of technology stack against IT controls and policies.
• Validate effectiveness of security tools.
• Deploy new security tools and ensure cost-effectiveness.
• Document SOPs and ensure compliance with security standards.
• Engage vendors to diagnose and rectify technical problems.
• Provide SME guidance on managed technology stacks.

Skills

Cybersecurity experience

Telco security

IAM knowledge

Analytical skills

Communication skills

Teamwork

Education

Bachelor’s degree in computer science, Cyber Security, Computer Engineering, or related discipline

Job description

An empowering career at Singtel begins with a Hello. Our purpose, to Empower Every Generation, connects people to the possibilities they need to excel. Every "hello" at Singtel opens doors to new initiatives, growth, and BIG possibilities that takes your career to new heights. So, when you say hello to us, you are really empowered to say…“Hello BIG Possibilities”.

Role Summary:

The Senior Information Security Specialist plays a key role in supporting Singtel Singapore Cyber Security ecosystem through hands-on technical execution. This role partners with business stakeholders to understand access requirements and ensure alignment with security controls.

The role involves

• Supporting and ensuring the uptime of tools used within CISO Singtel Singapore, Cyber Security Team.
• Collaborating with various technical teams in Singtel Singapore to ensure delivery of the outcome, on time and on budget.
• Assessing the adequacy and effectiveness of assigned technology stack(s) against related IT controls and policies, regulatory obligations, Singtel Group cybersecurity policies and principles while balancing business objectives as well.

How You will Make An Impact:

• Validate effectiveness of security tools managed by CISO Singtel Singapore, Cyber Security Engineering
• Supporting and ensuring adequacy of Cyber Security posture for security tools managed by CISO Singtel Singapore, Cyber Security Engineering
• Continuous review of current technology stack being managed is fit for use and cost effective.
• Deploy new technology stack managed by the team where applicable to ensure fit for us and cost effectiveness.

1. Engineering:

• Expand scope of various security systems such as but not limited to EDR, DAM, SIEM, SOAR, UEBA and Privileged Access Management where required to increase visibility of the tools
• Deliver new security tools to uplift overall security posture of Singtel Singapore
• Ensure that SOPs are documented, performed and in compliance with relevant security policies and standards
• Subject matter expert for assigned technology stack(s), providing guidance to the team on managing the technologies including optimizing performance and capacity.
• Work with stakeholders in IT and Enterprise to uplift coverage for assigned technology stack(s) where applicable
• Work with the various SMEs of the various security systems managed by Cyber Engineering or other technical SMEs to ensure delivery of outcomes including tracking of the tasks required to meet the outcome
• Engage relevant teams and/or vendors to diagnose and rectify technical problems where necessary
• Ensure documents or processes required as part of project delivery methodology is adhered to
• Support and provide inputs to design of technology stack(s) as subject matter expert so that it is fit-for-use, conforms to security best practices and is cost effective.

2 Customer Experience and Teamwork:

• Demonstrate professional, pro-active qualities in dealing with internal clients and stakeholders.
• Work with all stakeholders to meet operation and security requirements.
• Promote knowledge sharing, effective communication and teamwork with peers.

3 Continuous Improvement:

• Maintain strategic vendor partnerships, relevant education and certification.
• Complete relevant education and training as required.
• Keep abreast of relevant technology and cyber threat landscape.

Skills for Success:

• Bachelor’s degree in computer science, Cyber Security, Computer Engineering, or a related discipline
• A minimum of 3 to 6 years of relevant experience, with at least 2 years focused on cybersecurity in telco operations, network environments, or enterprise IT within the telecommunications domain including minimally 3 years hands-on experience in designing, administration or deployment of IT infrastructure components including implementing best practices like security hardening
• Experienced in application hosting and operations across both on-premises systems and multi-cloud environments including AWS and Azure
• Working IAM knowledge such as Active Directory, Multi-factor authentication
• Good analytical and communication skills
• Possess initiative with positive working attitudes and customer services oriented
• Strong teamwork, communication and interpersonal skills
• Independent and goal-oriented
• Have knowledge on CIS Controls or other Cyber Security frameworks.
• Good understanding of Change Management processes

Are you ready to say hello to BIG Possibilities?

Join Singtel to shape what's next and accelerate your career through meaningful work, continuous learning, and real impact.