Technical Ownership and Architectural Decisions Questions

This topic assesses a candidates ability to take technical ownership of systems and architecture and to drive high impact technical decisions from proposal through adoption and production. Candidates should be prepared to describe situations where they proposed and defended architectural changes or new frameworks, evaluated tradeoffs between competing approaches, prevented or remediated technical debt, and influenced technical strategy across teams or organizations. Include examples of leading projects end to end — designing solutions, guiding implementation, managing risks and tradeoffs (including between security and functionality), building consensus for controversial choices, and measuring the technical and business impact of those decisions. The description covers domain specific technical ownership such as security or cryptographic projects as well as broader system and platform architecture ownership.

HardTechnical

77 practiced

Create a 12-18 month strategic SRE roadmap aligned to business goals for reliability, cost optimization, and developer productivity. Include major initiatives, milestones, success metrics (MTTR, SLO attainment, cost savings, deployment frequency), resource estimates, and an approach for reprioritization if business priorities change.

HardSystem Design

85 practiced

How would you design SLOs for a service that depends on three upstream services, each with its own SLOs? Show how you would allocate error budget across layers, prevent alert storms, and handle correlated failures when multiple dependencies degrade simultaneously.

MediumTechnical

92 practiced

Your company must decide between adopting a hosted observability platform or building an in-house solution. Create a decision framework that covers total cost of ownership, feature parity (metrics/logs/traces), vendor lock-in, security and compliance, scalability, team capability, and migration risk. What would you evaluate first and why?

MediumSystem Design

83 practiced

You inherited a stateful monolith running on VMs that is hard to scale. Propose an incremental migration strategy to move to a containerized microservices platform (e.g., Kubernetes), minimizing user-visible downtime. Include steps for refactoring, data migration patterns, testing, and risk mitigation.

MediumTechnical

68 practiced

You are mentoring a junior SRE who avoids contributing to architecture discussions and lacks confidence proposing changes. Create a three-month coaching plan to help them take ownership, present technical proposals, and handle pushback from senior engineers. Include measurable milestones.

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