HubSpot is looking for a Frontend Engineer to join as a Senior Software Engineer II. In this role, you’ll focus on building scalable frontend applications that power critical customer onboarding and activation experiences. You will lead technical direction for UI systems and collaborate closely with product, design, and AI teams to deliver intelligent, data-driven user experiences.

What You'll Do

Design and build scalable, high-quality frontend applications that power onboarding and activation experiences.
Lead the technical direction for complex UI systems, ensuring performance, accessibility, and maintainability at scale.
Partner closely with product, design, AI, and backend teams to deliver intelligent, data-driven user experiences.
Translate customer problems into elegant frontend solutions that reduce friction and accelerate time-to-value.
Contribute to shared component libraries and internal tooling that enable consistent, product-led growth patterns across HubSpot.
Improve performance, reliability, and observability of frontend systems in a fast-moving environment.
Mentor other engineers and contribute to the long-term technical strategy of the Activate product area.

What We're Looking For

Strong frontend engineering experience, ideally with modern JavaScript frameworks (e.g., React) and TypeScript.
Experience building and maintaining complex, user-facing applications at scale.
Strong product mindset — balancing technical excellence with customer empathy.
Experience designing reusable component systems or working within a design system.
Thoughtful about performance, accessibility, and UX quality.
Comfortable collaborating across disciplines in ambiguous, evolving product spaces.
Makes pragmatic, data-informed decisions in fast-paced environments.