At NTT DATA Europe & Latam, a Security Engineer plays a pivotal role in safeguarding the digital assets, infrastructure, and application ecosystems of both the company and its global enterprise clients. Because NTT DATA operates as a massive IT services and consulting powerhouse, security is not a siloed function; it is integrated directly into client deliveries, cloud migrations, and internal systems. As a Security Engineer, you will be responsible for building, maintaining, and monitoring defense-in-depth architectures that protect sensitive data against an increasingly sophisticated threat landscape.

The impact of this role is far-reaching. You will work on diverse problem spaces, ranging from Security Operations Center (SOC) engineering and incident response to secure application development and vendor-specific network security. Whether you are helping a multinational client configure resilient firewall topologies or working alongside developers to secure Java-based enterprise applications, your technical oversight ensures that security is a business enabler rather than a bottleneck.

This position offers a highly professional and collaborative environment with excellent opportunities for career growth and learning. Because NTT DATA manages diverse environments globally, you will gain exposure to cutting-edge security technologies and methodologies. Candidates who succeed here are not just technically proficient; they are analytical problem-solvers who can communicate security risks clearly to both technical teams and business stakeholders.

The questions you will encounter during your interviews are designed to test your core security knowledge, hands-on technical skills, and behavioral adaptability. While the exact questions may vary depending on the team and location, they generally focus on real-world scenarios, incident handling, and basic networking principles.

The following categories represent the most common patterns identified in recent candidate experiences.

Security Operations & Incident Response

This category evaluates your ability to detect, analyze, and mitigate security threats in real-time. Expect questions that test your analytical approach to security incidents.

• How do you approach a P1 security incident from initial detection to final resolution?

Preparing for an interview at NTT DATA Europe & Latam requires a balanced approach. You need to demonstrate strong technical fundamentals while showcasing the communication skills necessary for a consulting and service-oriented environment.

To stand out, align your preparation with the key evaluation criteria the hiring team focuses on:

Technical Mastery & Domain Knowledge – You must demonstrate a robust understanding of security principles, network protocols, and secure architectures. Be ready to discuss the specific tools you have used, such as SIEM platforms, firewalls (particularly Fortinet), and vulnerability scanners, explaining not just how to use them, but why you configure them in a specific way.

Analytical & Problem-Solving Skills – Interviewers want to see how you think when faced with ambiguity. When presented with a security scenario, break down your thought process step-by-step, explain your assumptions, and justify your mitigation strategies.

Communication & Stakeholder Management – As a security professional at a global consulting firm, you will regularly interact with clients, developers, and managers. You must be able to translate complex technical risks into clear, actionable business language.

Cultural Fit & Adaptability – NTT DATA values collaborative, professional individuals who are eager to learn and grow. Show that you are proactive, receptive to feedback, and capable of working effectively within diverse, cross-functional teams.

The hiring process for a Security Engineer at NTT DATA Europe & Latam is structured, professional, and typically completed within one to two weeks. The company aims to evaluate both your technical depth and your behavioral fit through a series of distinct stages.

The process generally begins with an online assessment or aptitude test designed to evaluate your logical reasoning and foundational technical knowledge. Following this, you will progress to one or two technical interviews. These rounds focus heavily on information security scenarios, network configurations, and application security principles. Finally, you will participate in a managerial and HR round, which assesses your communication skills, behavioral alignment, and cultural fit.

This visual timeline outlines the standard progression of stages you will navigate during the hiring process. Use this overview to structure your weekly preparation, ensuring you allocate sufficient time for technical review before your initial screens and behavioral practice before the final rounds. While minor variations exist depending on your target location and specialization, this represents the core framework used to evaluate candidates.

To excel in the technical rounds, you must understand the specific areas where interviewers will focus their evaluation. Expect a mix of conceptual questions and hands-on scenarios.

Incident Response & SOC Operations

This area evaluates your ability to monitor, detect, and respond to active threats within an enterprise environment. Interviewers want to see a structured, calm approach to security incidents.

Be ready to go over:

• SIEM and Log Analysis – How to aggregate, correlate, and analyze logs from firewalls, endpoints, and servers to identify anomalous behavior.
• Incident Lifecycle Management – The phases of incident response (Preparation, Identification, Containment, Eradication, Recovery, and Lessons Learned).
• Phishing and Email Security – Analyzing email headers, identifying malicious attachments, and implementing protective measures like DMARC, DKIM, and SPF.
• Advanced concepts (less common) – Threat hunting methodologies, developing custom detection rules (YARA/Sigma), and automating incident response playbooks (SOAR).

Example scenarios:

• "An alert indicates that a domain controller is communicating with a known malicious IP address. Walk me through your immediate containment and investigation steps."
• "How would you design a detection rule to identify potential data exfiltration over non-standard ports?"

Network Security & Firewall Configurations

A solid grasp of networking is non-negotiable. The team will test your understanding of how data moves across networks and how to secure those pathways.

Be ready to go over:

• Network Fundamentals – Deep understanding of the OSI model, TCP/IP, routing protocols, and common network topologies.
• Firewall Administration – Configuring policies, NAT (Network Address Translation), VPNs, and intrusion prevention systems (IPS).
• Vendor-Specific Configurations – Practical knowledge of configuring and troubleshooting enterprise firewalls, specifically Fortinet appliances.
• Advanced concepts (less common) – Zero Trust Network Access (ZTNA), software-defined perimeter (SDP), and micro-segmentation strategies in cloud environments.

Example scenarios:

• "Explain how you would configure a static NAT policy on a Fortinet firewall to allow external access to an internal web server."
• "How do you troubleshoot a broken IPsec VPN tunnel between two corporate offices?"

Application Security (AppSec)

For roles focusing on application security or code review, you will be evaluated on your ability to secure software from the inside out.

Be ready to go over:

• Secure Code Review – Identifying common coding flaws (e.g., hardcoded credentials, insecure deserialization) in languages like Java.
• Vulnerability Remediation – Explaining how to patch or mitigate vulnerabilities identified by SAST/DAST tools.
• API Security – Securing RESTful APIs using OAuth, API gateways, and proper input validation.
• Advanced concepts (less common) – Threat modeling using frameworks like STRIDE, and managing third-party dependency risks (Software Bill of Materials - SBOM).

Example scenarios:

• "You discover a high-severity cross-site scripting (XSS) vulnerability in a production application. How do you explain the risk to the development team, and what remediation do you recommend?"
• "How would you secure a Java application that needs to connect to an external database without exposing sensitive credentials?"