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Lead Engineer, Internal Developer Platform
Posted Jul 14, 2026 · We last checked this listing on Sep 20, 2026
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Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
Behavioral
Walk me through a time you built or extended an internal developer portal, like Backstage. What problem were developers actually having, and how did you know your fix worked?
whether they've done real DevX work versus just standing up a default install, and whether they measure impact
Tell me about a GitLab CI/CD pipeline you built that other teams depended on. What broke, and how did you find out before they told you?
ownership of shared infrastructure and whether they build in observability for their own pipelines
Tell me about a time you used Datadog, or something like it, to catch a problem in a distributed system before developers noticed it. What did the dashboard or monitor actually look like?
proactive operational habits and specificity of observability experience
You're treating the internal platform as a product and developers as customers. How do you find out what they actually need instead of what you assume they need?
product mindset and stakeholder empathy versus a pure infrastructure-builder mentality
Technical
Tell me about a custom Backstage plugin or scaffolder template you built. What was in it, and what tech did you use to build it?
hands-on depth with TypeScript, Node.js, React, and the Scaffolder, not just familiarity
How would you use Crossplane to let application teams provision cloud infrastructure without giving them direct AWS or GCP console access?
real experience with composite resources and abstraction versus buzzword familiarity
We run workloads on both EKS and GKE. What's genuinely different about operating Kubernetes across those two, and where have you been burned by assuming they're the same?
multi-cloud depth versus single-cloud experience dressed up as multi-cloud
Describe how you'd structure Terraform modules so the same platform team can support teams on AWS and GCP without duplicating logic for every environment.
IaC design maturity: reusability, versioning, promotion strategy, not just writing Terraform
How do you use JFrog Artifactory in a pipeline to manage artifacts and dependencies across multiple teams' repos, and what happens when a bad artifact gets promoted?
concrete operational experience with artifact lifecycle and rollback, not just naming the tool
How would you build DevSecOps controls, like secrets management and vulnerability scanning, into a CI/CD pipeline without making every deploy painfully slow for developers?
balancing security requirements against developer experience, a core tension for this role
Situational
Say you're setting up the Backstage Software Catalog for a company with hundreds of services owned by different teams. How would you get accurate, up-to-date ownership and metadata without it rotting in a month?
practical understanding of catalog governance and adoption, not just the tool's features
Walk me through how you'd define SLOs and an error budget for a platform service, like the developer portal itself. What do you do when the error budget runs out mid-sprint?
whether SRE principles are internalized as decision-making tools, not slide-deck vocabulary
Imagine a developer's deployment silently fails in production, and the pipeline shows green. How do you debug across the CI/CD pipeline, the cluster, and the cloud provider to find where it actually broke?
methodical troubleshooting across a full stack of unfamiliar systems, and whether they can narrate a real diagnostic process
This job requires 10 days a month in Madison, Boston, or Denver, and heavy collaboration with distributed engineering teams. How have you kept a platform team aligned with product teams when you're not sitting next to them every day?
cross-team communication skills in a hybrid setup and realistic expectations about the role's collaboration demands
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