Note: The job is a remote job and is open to candidates in USA. HubSpot is an AI-powered customer platform that connects marketing, sales, and service. They are seeking a Principal Software Engineer to shape the technical future of Revenue Hub, focusing on building a commerce platform and defining how external developers and AI agents interact with it.
Responsibilities
- Build a simple, consistent, extensible platform
- Shape the technical roadmap across CPQ, Billing, and Payments with strong, opinionated patterns
- Define and evolve core domain models so pricing, products, contracts, invoices, and payments behave predictably in the UI, over the API, and inside agent-driven workflows
- Design the API and platform contracts that let developers, partners, and AI agents extend Revenue Hub without coupling to internals
- Create frameworks that make the platform easy to extend without adding complexity
- Write code regularly. Lead design reviews and build high-impact systems end-to-end
- Own large multi-team initiatives that span CPQ, Billing, and Payments
- Take prototypes to production at scale
- Set patterns for extensibility, contract boundaries, financial correctness, event-driven consistency, and how AI agents safely interact with commerce objects
- Push for simplicity where the domain wants to get complicated, and consistency where surfaces can drift
- Influence product strategy across CPQ, Buyer Portal, and Revenue OS
- Help teams make clear tradeoffs between speed, correctness, compliance, and long-term platform health
- Mentor senior engineers and tech leads
- Drive thoughtful design decisions and guide learnings from incidents and large migrations
- Help teams align on patterns that reduce complexity and increase reliability
Skills
- Proven experience building and scaling distributed systems with strict correctness requirements
- Strong instincts for API and platform design. You've built things external teams depend on and know what that responsibility feels like
- Background working with complex state machines, financial flows, or high-integrity data models
- Familiarity with agentic systems and what it means for AI to safely act on structured data, not just read it
- The ability to work horizontally across many teams and get alignment on platform patterns
- A habit of turning ambiguity into clear plans and working software, and staying hands-on every step of the way
Benefits
- On-target commission for employees in eligible roles
- Annual bonus targets under HubSpot’s bonus plan for eligible roles
- Eligible to participate in HubSpot’s equity plan to receive restricted stock units (RSUs)
- Some roles may also be eligible for overtime pay
- Individual compensation packages are tailored to your skills, experience, qualifications, and other job-related reasons
- Explore the benefits and perks HubSpot offers to help employees grow better
- If you need accommodations or assistance due to a disability, please reach out to us using this form
- If you are joining our Engineering team, you will be required to attend a regional HubSpot office for in-person onboarding
- If you join our broader Product team, you’ll also attend other in-person events, such as your Product Group Summit and other gatherings, to continue building on those connections
- If you require an accommodation due to travel limitations or other reasons, please inform your recruiter during the hiring process. We are committed to supporting candidates who may need alternative arrangements
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