At Nexlogica, a Systems Engineer (often hired under specialized titles such as Senior Systems Administrator, Sr. System Administrator 7 HCL Domino Servers, or iCAD/Systems Administrator) plays a critical role in maintaining, optimizing, and securing the core infrastructure that powers our business operations. This position sits at the intersection of infrastructure stability, enterprise collaboration, and engineering support. You will be responsible for ensuring that both modern cloud environments and legacy, business-critical platforms remain highly available and performant.

The impact of this role is immediate and far-reaching. Whether you are managing specialized HCL Domino Servers for enterprise collaboration, supporting complex engineering workflows via iCAD systems, or administering local systems in offices like Downey, CA, your work directly enables internal teams to collaborate without friction. Nexlogica relies heavily on its system architecture to maintain data integrity, support remote workforces, and protect intellectual property.

To succeed in this role, you must possess a deep technical curiosity and a strong sense of ownership. You will face complex challenges involving legacy system modernization, virtualization, system backups, and cross-platform integrations. This is an exciting opportunity for engineers who enjoy working with a diverse technology stack and want to see the direct business impact of their infrastructure decisions.

The following questions are representative of what you can expect during the Nexlogica hiring process. They are compiled from real reported interview experiences across similar technical infrastructure roles and are designed to test your technical depth, troubleshooting methodology, and behavioral alignment.

Infrastructure & Server Administration

These questions assess your core operating system knowledge, virtualization expertise, and ability to manage enterprise-scale server environments.

• How do you manage and troubleshoot Active Directory replication issues across multiple geographic sites?
• Explain your process for designing and implementing a comprehensive patch management strategy for Windows and Linux servers.

To stand out in the Nexlogica interview process, you must prepare to demonstrate both deep technical execution and strong strategic thinking. Interviewers are not just looking for someone who can follow a runbook; they want engineers who understand the "why" behind system configurations and can proactively improve infrastructure reliability.

Technical Domain Expertise – You must show a comprehensive understanding of the systems listed in the job description, whether that is HCL Domino, iCAD, or general Windows/Linux administration. Be ready to explain the underlying architecture of these systems, how they scale, and how to secure them.

Problem-Solving & Troubleshooting – Your interviewers will present you with open-ended scenario questions. They want to see a structured, logical approach to diagnostics. Always state your assumptions, isolate variables systematically, and explain how you would verify your fix.

Ownership & Proactivity – Nexlogica values engineers who take initiative. Be prepared to talk about projects where you identified a system vulnerability, a performance bottleneck, or an inefficient manual process, and took it upon yourself to implement a permanent solution.

Communication & Collaboration – Especially for remote roles, clear written and verbal communication is vital. You must be able to document your work thoroughly, collaborate across time zones, and explain technical risks to business leaders in a clear, actionable manner.

The interview process at Nexlogica is structured to evaluate your technical competency, scenario-based problem-solving skills, and cultural alignment with a highly collaborative, remote-first team. The process moves efficiently but maintains a high bar for technical rigor. You can expect a mix of conversational interviews, deep-dive technical discussions, and situational troubleshooting exercises.

In general, the pipeline is designed to respect the candidate's time while ensuring a mutual fit. The initial stages focus on aligning your experience with the specific technical requirements of the role (such as your familiarity with HCL Domino or iCAD systems), while the later stages focus on system design, behavioral attributes, and your ability to work autonomously.

This visual timeline outlines the typical progression you will experience from your initial application to the final offer stage. Use this map to pace your preparation, focusing first on core technical concepts and then transitioning to scenario-based design and behavioral questions as you advance. Note that while the sequence remains consistent, the depth of specialized platform questions will depend on the specific team you are interviewing with.

To help you focus your preparation, we have broken down the primary evaluation areas that Nexlogica interviewers focus on during the technical rounds.

Enterprise Collaboration & Legacy Systems (HCL Domino)

If you are interviewing for a role focused on HCL Domino Servers, this area will be heavily scrutinized. The team needs to know you can manage, maintain, and eventually modernize these critical collaboration environments.

Be ready to go over:

• Domino Administration – Managing user directories, mail routing, and server tasks.
• Replication Architecture – Troubleshooting replication conflicts and optimizing data synchronization across distributed servers.
• Security & Access Control – Configuring Execution Control Lists (ECLs), server access restrictions, and SSL/TLS configurations.
• Advanced concepts (less common) – Integrating Domino with modern web services, migrating Domino databases to cloud alternatives, or scripting administrative tasks using LotusScript or PowerShell.

Example questions or scenarios:

• "How would you diagnose a mail routing loop between two HCL Domino servers located in different regions?"
• "Describe your approach to upgrading a production HCL Domino cluster to a new major version with minimal downtime."

Core Infrastructure & Virtualization

For general Systems Engineer and Senior Systems Administrator tracks, you will be evaluated on your ability to manage core operating systems, active directory services, and virtualization platforms.

Be ready to go over:

• Active Directory & GPO – Designing organizational units, managing group policies, and securing domain controllers.
• Virtualization Management – Configuring and optimizing VMware ESXi or Hyper-V clusters, managing resource allocation, and troubleshooting VM performance.
• Networking Basics – Subnetting, routing, firewall rules, and troubleshooting connectivity issues using command-line tools.
• Advanced concepts (less common) – Automated OS deployment, infrastructure as code (IaC) principles, and basic cloud integration (AWS/Azure).

Example questions or scenarios:

• "A virtual machine is experiencing severe disk I/O latency. Walk me through how you would isolate the issue between the storage array, the hypervisor, and the guest OS."
• "How would you design a highly secure Active Directory structure for a remote workforce to ensure least-privilege access?"

System Monitoring, Backups, & Disaster Recovery

A key responsibility of a Systems Engineer is ensuring data integrity and business continuity. Interviewers will test your familiarity with modern backup methodologies and monitoring systems.

Be ready to go over:

• Backup Strategies – Implementing full, incremental, and differential backups, and understanding the grandfather-father-son retention model.
• Monitoring & Alerting – Setting up proactive monitoring (e.g., Zabbix, Nagios, or cloud-native tools) and defining meaningful alerting thresholds.
• Disaster Recovery Testing – Designing and executing mock failover scenarios to validate recovery objectives.

Example questions or scenarios:

• "How do you ensure that your backups are not only running successfully but are actually restorable in the event of a ransomware attack?"
• "What metrics would you monitor on a critical database server to catch a performance degradation issue before it impacts end-users?"