How do you handle conflicts within a team? Provide an example.

Situation: Two senior engineers disagreed on architecture: one advocated a single monolithic pipeline; the other wanted domain-split micro-pipelines. The debate stalled delivery and created tension. Task: Resolve the conflict with a data-driven decision that both could support. Action: I facilitated a structured session. I asked each to state their success criteria (maintainability, SLA, cost). I framed the choice as a trade-off: we ran benchmarks on a representative subset—monolith vs. split—and measured build time, test isolation, and failure blast radius. I proposed a hybrid: shared core pipeline for common transforms, domain-specific pipelines for business logic. We piloted for 2 sprints with agreed metrics. I documented the decision in an ADR (Architecture Decision Record) with rationale. Result: Both engineers contributed to the hybrid design. Merge conflicts dropped 50%; incident MTTR improved. We established ADRs as standard for future disagreements.