Principal Software Engineer

Responsibilities

• Architect the future of HubSpot's contract and monetization layer
• Lead the technical strategy for moving HubSpot from a fixed SaaS subscription model to a flexible contracting platform that supports usage-based, commit-based, and enterprise-grade pricing structures.
• Define and own the core architecture for contract lifecycle management, usage metering, entitlement enforcement, and pricing model extensibility — using our internal Corex contract orchestration framework as the foundation.
• Make principled tradeoffs between correctness, compliance, and product velocity in a system where the stakes are financial.
• Be a deeply hands-on, high-leverage builder
• Write production code regularly.
• Lead design reviews.
• Own large initiatives end-to-end, from architecture through rollout.
• Drive multi-team technical efforts that span the three squads within Adaptive Monetization and require coordination across the broader fintech organization.
• Turn ambiguity into clear technical direction and working software — and stay hands-on throughout.

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