To succeed, you need to prove your proficiency across several distinct domains. Interviewers will probe your hands-on experience as well as your strategic decision-making.
Cloud Infrastructure & Automation
This area evaluates your mastery of public cloud platforms (AWS, Azure, or GCP) and your ability to automate infrastructure provisioning. Applied Systems values candidates who can reduce manual effort through robust automation frameworks. Strong performance means speaking confidently about scalable, secure, and cost-effective cloud architectures.
Be ready to go over:
- Infrastructure as Code (IaC) – Best practices for managing state, modularizing code, and testing infrastructure changes using tools like Terraform.
- Cloud Security & Networking – Designing secure VPCs, managing IAM roles, and integrating InfoSec requirements directly into the infrastructure layer.
- Cost Optimization – Strategies for monitoring and reducing cloud spend without sacrificing performance or reliability.
- Advanced concepts – Multi-region high availability, disaster recovery strategies, and immutable infrastructure patterns.
Example questions or scenarios:
- "Walk me through how you would design a multi-region cloud architecture for a highly available, compliance-heavy application."
- "Describe a time you refactored a legacy infrastructure setup into a fully automated IaC deployment."
CI/CD & Cloud-Native Tooling
Your ability to optimize development workflows is paramount. Interviewers will test your knowledge of modern deployment paradigms, specifically looking for experience with the tools Applied Systems prefers, such as GitLab, Kubernetes, ArgoCD, and Istio.
Be ready to go over:
- Container Orchestration – Managing Kubernetes clusters, scaling strategies, and troubleshooting pod lifecycle issues.
- GitOps & Continuous Deployment – Using ArgoCD for declarative deployments and managing configuration drift.
- Service Mesh – Understanding the role of Istio in traffic management, observability, and securing microservices communication.
- Advanced concepts – Zero-downtime deployment strategies (blue/green, canary) and pipeline security (DevSecOps integration).
Example questions or scenarios:
- "How do you handle secrets management and vulnerability scanning within a GitLab CI/CD pipeline?"
- "Explain your approach to migrating a traditional microservices architecture to a GitOps model using Kubernetes and ArgoCD."
Incident Management & Observability
Operational resilience is a core responsibility. You will be evaluated on your ability to oversee troubleshooting, conduct RCAs, and implement monitoring solutions that proactively catch issues before they impact customers.
Be ready to go over:
- Monitoring & Alerting – Setting up SLIs/SLOs, reducing alert fatigue, and using modern observability tools.
- Root Cause Analysis – Structuring an RCA process that focuses on systemic improvements rather than blame.
- Balancing BAU with Strategy – How you allocate team bandwidth between operational firefighting and planned architectural enhancements.
Example questions or scenarios:
- "Tell me about a critical production outage your team faced. How did you manage the incident, and what systemic changes did you implement afterward?"
- "How do you ensure your team isn't overwhelmed by business-as-usual (BAU) operational work?"
Leadership & Stakeholder Management
As a leader, your soft skills are just as important as your technical chops. This area tests your ability to mentor engineers, influence organizational change, and manage external vendors.
Be ready to go over:
- Team Development – Strategies for mentoring DevOps engineers and enabling their performance.
- Cross-Functional Influence – Gaining buy-in from Software Engineering and InfoSec for new platform capabilities.
- Vendor Management – Evaluating, procuring, and managing relationships for technology solutions.
Example questions or scenarios:
- "Describe a time you had to push back on a software engineering team regarding a deployment practice that didn't meet internal standards."
- "How do you approach multi-year planning and evaluating new tools or frameworks for your platform?"