IT Security Officer

nttlimited· NTT Singapore Pte. Ltd.
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📍 Kallang, SingaporeFull time

About this role

Make an impact with NTT DATA
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.

Your day at NTT DATA
As a Security Managed Services Engineer (L2) at NTT DATA, your role will be to ensure that our clients' security infrastructures and systems remain operational. With a proactive approach, you'll monitor, identify, investigate, and resolve technical incidents and problems, restoring service efficiently. Your primary objective will be to handle client requests or tickets with technical expertise, ensuring they are resolved within the agreed service level agreement (SLA).

You'll actively manage work queues, perform operational tasks, and update tickets with resolution actions. By identifying issues and errors early on, you'll log incidents promptly and provide second-level support, communicating effectively with other teams and clients to extend support when needed. Your role includes executing changes responsibly, flagging risks and mitigation plans, and ensuring all changes have proper approvals.
Collaborative efforts are at the heart of this role. You'll work closely with automation teams to optimize efforts and automate routine tasks, ensuring seamless handovers during shift changes. Your analytical skills will be key in auditing incident and request tickets for quality, recommending improvements, and contributing to trend analysis reports to identify automation opportunities.

As a go-to for initial client escalations, you'll assist L1 Security Engineers with triage and troubleshooting, and support project work when required. Your contributions to the change management process will ensure thorough documentation, effective planning and execution of maintenance activities, and compliance with standard procedures.

To thrive in this role, you need to have:
  • Experience with managed services handling security infrastructure and working knowledge of ticketing tools, preferably ServiceNow.
  • Proficiency in active listening, with techniques like paraphrasing and probing for further information.
  • Excellent planning skills, able to anticipate and adjust to changing circumstances.
  • Strong ability to communicate and engage across different cultures and social groups.
  • Adaptability to changing conditions and flexibility in approach.
  • Client-focused mindset, always putting their needs and positive experience first.
  • A positive outlook and the ability to work well under pressure.
  • Willingness to put in longer hours when necessary.
  • Bachelor's degree or equivalent qualification in IT/Computing, or relevant work experience.

Workplace type:

Hybrid Working

About NTT DATA
NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune

Global 100. We are committed to accelerating client success and positively impacting society through

responsible innovation. We are one of the world’s leading AI and digital infrastructure providers, with

unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and

application services. Our consulting and industry solutions help organizations and society move

confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more

than 70 countries. We also offer clients access to a robust ecosystem of innovation centers as well as

established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each

year in R&D.


Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.


Third parties fraudulently posing as NTT DATA recruiters 

NTT DATA recruiters will never ask job seekers or candidates for payment or banking information during the recruitment process, for any reason. Please remain vigilant of third parties who may attempt to impersonate NTT DATA recruiters whether in writing or by phone in order to deceptively obtain personal data or money from you. All email communications from an NTT DATA recruiter will come from an @nttdata.com email address. If you suspect any fraudulent activity, please contact us.

Frequently Asked Questions

Is the salary disclosed for the IT Security Officer position at nttlimited?
The salary for this IT Security Officer role at nttlimited is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the IT Security Officer position at nttlimited located?
This IT Security Officer role at nttlimited is based in Kallang, Singapore. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the IT Security Officer role at nttlimited full-time or part-time?
This is listed as a Full time position. It is posted as a IT Security Officer role in the NTT Singapore Pte. Ltd. department at nttlimited.
Which team or department does the IT Security Officer at nttlimited belong to?
This IT Security Officer position is part of the NTT Singapore Pte. Ltd. department at nttlimited. See the full job description for more information about the team structure and responsibilities.
How do I apply for the IT Security Officer position at nttlimited?
Click the "Apply Now" button on this page. You will be redirected to nttlimited's official application portal hosted on workday where you can submit your application directly.
When was the IT Security Officer job at nttlimited posted?
This IT Security Officer position at nttlimited was posted on Sep 24, 2026. Apply as soon as possible — early applications are often reviewed first.
IT Security Officer
nttlimited
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