Cross Technology Managed Services Engineer (L3)

Make an impact with NTT DATA
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Role Overview

The Cross Technology Managed Services Engineer (L3) is a senior technical specialist responsible for delivering operational excellence across multiple technology domains within managed services environments. The role requires a strong foundation in core infrastructure technologies, including operating systems, Active Directory, identity and messaging services, with primary expertise in public cloud platforms, cloud networking, and cloud security.

This position provides advanced technical support, complex incident resolution, proactive service optimisation, and technical leadership across hybrid and multi-cloud customer environments. The engineer acts as an escalation point for lower-tier engineers and contributes to the design, automation, and continuous improvement of managed services operations.

Key Responsibilities

Public Cloud Operations

- Manage, maintain, and optimise Azure, AWS and/or GCP environments.
- Support cloud-native networking, identity, security, and governance services.
- Implement and maintain cloud security controls, policies, and best practices.
- Monitor cloud platform performance, availability, and cost optimisation initiatives.
- Support cloud migration, modernisation, and transformation projects.

Cloud Networking & Security

- Administer and troubleshoot: Virtual Networks (VNETs)
- AWS VPCs
- Routing and segmentation
- VPN connectivity
- ExpressRoute / Direct Connect
- Load balancing
- DNS services
- Firewalls and security appliances

- Implement and manage: Zero Trust principles
- Network Security Groups
- Web Application Firewalls
- Cloud security services
- Identity-based access controls

Service Operations

- Act as L3 escalation point for critical incidents and complex technical issues.
- Lead root cause analysis and problem management activities.
- Deliver proactive maintenance and service improvement initiatives.
- Develop automation and standardisation opportunities.
- Produce and maintain technical documentation and operational procedures.

Customer Engagement

- Provide technical guidance to clients and internal teams.
- Participate in service reviews and technical governance discussions.
- Support project teams during implementations and transitions into support.
- Contribute technical expertise during solution planning and design discussions.

Required Technical Skills

Public Cloud

- Microsoft Azure (preferred) SC700
- Amazon Web Services (advantageous)

Cloud Networking

- VNET / VPC Design
- Routing and Switching
- VPN Technologies
- SD-WAN
- ExpressRoute / Direct Connect
- DNS and Load Balancing
- Cloud Firewalls

Cloud Security

- Microsoft Defender Suite
- Microsoft Sentinel
- Security Center / Defender for Cloud
- IAM and RBAC
- Conditional Access
- Zero Trust Architecture
- Security Monitoring and Compliance

Infrastructure

- Windows Server
- Linux Administration
- PowerShell
- Infrastructure Automation

Experience Requirements

- 5+ years experience in managed services or enterprise infrastructure environments.
- Demonstrated experience supporting public cloud platforms in production environments.
- Strong experience in cloud networking and security technologies.
- Experience with Microsoft identity and messaging platforms.
- Proven ability to lead technical troubleshooting and major incident resolution.

Preferred Certifications

Microsoft

- AZ-104 Microsoft Azure Administrator
- AZ-305 Azure Solutions Architect Expert
- AZ-700 Azure Network Engineer Associate
- AZ-500 Azure Security Engineer Associate
- SC-100 Cybersecurity Architect Expert (advantageous)

Success Profile

The successful candidate will be a highly versatile infrastructure and cloud engineer who combines deep technical expertise in public cloud, networking, and security with broad cross-technology knowledge spanning operating systems, identity, and messaging platforms. They will demonstrate strong problem-solving capability, customer focus, operational excellence, and a commitment to continuous improvement.

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.

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