Principal Software Engineer- CRM

About the Role
We are seeking a Principal Software Engineer to lead one of the most compelling product challenges in the CRM space right now: making HubSpot deeply, genuinely configurable for every customer- without sacrificing the reliability and consistency enterprise software demands.

The shift is already happening. Things that once required expensive custom engineering - personalizing workflows, building bespoke CRM applications, extending the product to fit a team's exact needs - are becoming dramatically more accessible with coding agents and AI. The question we're solving is: how do you productize that level of deep customization at scale? This person won't just follow a technical roadmap- they'll help define what's possible, build the custom workspaces and extensibility foundations that make it real, and raise the bar for how product-minded engineering gets done across a 100+ engineer org.

Key Expectations
Architectural Leadership for CRM Configurability: Define the technical patterns for how customers can deeply configure and extend HubSpot- from custom workspaces and no-code/low-code surfaces to AI-powered personalization that scales across millions of users.
Zero-to-One Product Building: Act as the technical anchor for a genuinely new problem space. You stay current with where AI and coding agents are heading, prototype rapidly, and turn early-stage ideas into production-grade product features- not just POCs.
Hands-On, High-Leverage Contributor: You ship production code at 75%+ of your time. You lead from the front - moving from architectural vision to working software, personally. If your preference is strategy with others implementing, this isn't the role. You architect by delivering.
Cross-Functional Influence at Scale: This work touches ~120+ engineers across multiple groups, plus Product and UX partners. You'll need to build alignment, communicate trade-offs clearly across all levels, and move a large org without steamrolling it.
Technical Mentorship & Multiplier: You elevate the engineers around you- raising the bar on full-stack product thinking, AI-enabled development, and what it means to build software that customers actually use and love.
Product & Customer Obsession: You understand the pain of a CRM customer who needs software to flex to their workflow, not the other way around. You bring that perspective into every technical decision you make.

What You Bring
Full-Stack Product Engineering Depth: You've delivered meaningful impact on both sides- backend systems and product-facing layers- and you own end-to-end. You're not purely infrastructure, and you're not purely UI. You span both because the best product outcomes require it.
AI Shipped to Production: You've gone beyond experimentation. You've delivered AI-powered product features with real user impact- ideally at the intersection of configurability, extensibility, or no-code/low-code tooling and AI capability.
A Product-First Mindset: You care deeply about the "why" behind the "what." You've built things people use every day, and you advocate for the customer experience in design reviews- even when it means rethinking the technical approach.
SaaS Product Background: You've operated inside a product-led SaaS company that moves fast and operates at scale. You understand the difference between building for enterprise customers and building for storefronts or one-off client engagements. (E-commerce, agency, and IT-cost-center experience tends not to translate to this environment.)
A Bias for Working Software: You prefer a working prototype over a 20-page design doc. You turn ambiguity into clarity through shipped code - and you're energized, not slowed down, by a problem that doesn't have a clear answer yet.