Network Security Engineer (L3)
Confirmed on the employer's own hiring board on Oct 30, 2026. First seen by Alion on Oct 27, 2026. NTT scores B on the Alion truth index.
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 (L3) at NTT DATA, you'll be at the helm of ensuring our clients' infrastructures are secure, robust, and running smoothly. Your day will involve proactively identifying and resolving technical incidents, performing necessary checks, and applying monitoring tools to keep everything in top shape. You'll ensure that all assigned infrastructure at client sites is correctly configured, installed, tested, and operational from the start.
You'll dive deep into third-line support calls, uncovering the root causes of incidents and problems. daily, you'll engage with clients, providing continuous feedback and updating them about their systems' statuses. Your role is crucial in maintaining zero missed service level agreement (SLA) conditions, identify root cause of critical incidents and implement solutions for problems identified and You'll handle tickets of high complexity, deliver advanced solutions, and contribute to operational improvements.
Important responsibility is to create knowledge articles for frequent tasks/issues and train junior team members in executing those tasks. Provide inputs to automation teams to reduce manual efforts.
As a seasoned professional, you'll lend your expertise to coach and mentor junior team members, especially on advanced technical troubleshooting and best practices. You may also manage and implement projects within your technology domain, ensuring timely and effective delivery in line with client requirements. From optimizing work processes to working on disaster recovery functions, you'll play a key part in enhancing our service delivery.
To thrive in this role, you need to have:
- Proven experience handling complex security infrastructure within a managed services environment.
- Strong background in IT engineering, preferably within medium to large ICT organizations.
- Deep working knowledge of ITIL processes.
- Proficiency in planning activities and projects well in advance.
- Strong client-focused approach, ensuring a positive client experience.
- Excellent communication skills, with the ability to work across different cultures and social groups.
- Effective listening skills and an ability to adapt to changing circumstances.
- Ability to remain calm and positive under pressure, and willingness to work longer hours when necessary.
- Bachelor's degree or equivalent qualification in IT/Computing or equivalent work experience.
Workplace type:
Hybrid WorkingAbout 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.
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