Technical Vision and Infrastructure Roadmap Questions

This topic assesses a candidate's ability to define a multi year technical vision for infrastructure, platform, and systems and to translate that vision into a practical execution roadmap. Core skills include evaluating technology choices and architecture evolution, planning migration and modernization paths, anticipating scalability and capacity needs, and balancing cost performance with resilience and operational reliability. Candidates should demonstrate approaches to managing technical debt, sequencing investments across quarters and releases, estimating resources and timelines, establishing measurable infrastructure goals and key performance indicators, and implementing governance and standards. Discussion may also cover reliability and observability, security and compliance considerations, trade offs between short term stability and long term rearchitecture, prioritization to enable business outcomes, and communicating technical trade offs to both technical and non technical stakeholders.

EasyTechnical

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You are asked to create a 3-year technical vision for SRE infrastructure for a mid-size SaaS company. What high-level components should this vision include (for example: observability, SLOs and error budgets, automation and runbooks, platform architecture, security and compliance, cost optimization, technical-debt reduction, and team model)? Provide a prioritized list of 6-8 components, explain why each item is important to business outcomes, and propose one measurable success metric per component.

MediumTechnical

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Forty percent of your cloud spend is traced to inefficient resource usage identified by rightsizing reports. Outline an initiative to reduce spend by 25% without impacting availability. Include measurement strategy, automation steps, pilot scope, timeline, stakeholder incentives, and risk mitigation.

MediumTechnical

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Explain technical debt from an infrastructure perspective. How do you identify and quantify infrastructure technical debt, how do you prioritize what to pay down, and what approaches do you use to balance paying technical debt versus delivering features in the roadmap?

HardTechnical

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You need to migrate a single large monolithic database to a sharded architecture without downtime. Describe the migration strategy: how to pick shard keys, how to route queries during migration (proxy vs application changes), data synchronization approach, schema evolution plan, rebalancing strategy, and rollback considerations.

MediumTechnical

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System reliability drops during peak traffic because of noisy neighbor effects in a shared cloud account. Propose both technical and governance mitigations: isolation strategies, scheduling and quota approaches, detection and alerting, cost implications, and a rollout plan that minimizes disruption.

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