Frontend Staff Engineer UI Extensions

Join HubSpot as a Staff Software Engineer - Frontend, where you will play a pivotal role in expanding our highly extensible developer platform. As part of the Developer Product Group, you will empower external and internal developers to build powerful extensions and integrations on top of HubSpot's platform. This position offers the opportunity to shape product vision, drive technical strategy, and deliver high-impact solutions that enhance the flexibility and customizability of HubSpot's CRM and ecosystem.

Job Overview

We are looking for a hands-on, frontend-focused Staff Software Engineer with a passion for building robust developer tooling and UI extensions. In this role, you will architect, design, and implement frontend systems that allow developers to create sophisticated customizations and applications within HubSpot. You will also serve as a technical leader and subject matter expert, collaborating cross-functionally to drive innovation and ensure a seamless experience across our platforms.

Key Responsibilities

• Design, develop, and maintain extensible frontend systems and UI extensions using modern frameworks.
• Lead the architecture and implementation of developer-focused tooling and services.
• Deliver high-value, cross-team projects that drive business and platform growth.
• Provide strategic technical input and mentor engineers across teams.
• Stay current with industry trends, especially in AI and frontend technologies, to enhance platform capabilities.

Required Skills & Qualifications

• Extensive experience with React and TypeScript in large-scale applications.
• Proven track record of architecting and delivering impactful frontend solutions.
• Deep understanding of frontend architecture and browser-based systems.
• Experience building developer platforms, tools, or SDKs.
• Strong problem-solving skills with a pragmatic, technology-first approach.
• Effective cross-functional collaboration and technical leadership abilities.
• Demonstrated ability to drive technical strategy and mentor engineering teams.