Senior JavaScript / React Developer (HubSpot)

Position: Senior JavaScript / React Developer (HubSpot) Salary: NZD 2,500 to 4,500 per month (depending on skills and experience) Working Hours & Conditions: Monday to Friday, 6:00 am to 3:00 pm fixed start time; should complete nine (9) hours work ROLE OVERVIEW The company is looking for a Senior JavaScript / React Developer to join the team in a remote capacity. This is a hands-on development role centred on strong JavaScript and React fundamentals, HubSpot-specific experience is valued but secondary to core coding ability. The right candidate builds and reviews code with genuine technical depth, can identify what is wrong in code they did not write, and is straightforward about the limits of their own knowledge. You will design and build Content Hub modules, themes, and templates from Figma files and Asana briefs, working alongside a backend developer to deliver frontend functionality for eCommerce, checkout flows, and membership self-service within the HubSpot ecosystem. RESPONSIBILITIES Development & Build Develop Content Hub modules, themes, and templates working from Figma design files and development notes in Asana. Build dynamic pages powered by HubDB tables, ensuring content is accurately structured and rendered. Collaborate with the backend developer to implement frontend functionality for eCommerce, checkout flows, and membership self-service features. Apply responsive design principles and SEO best practices across all development work. Code Review & Quality Review AI-generated and team-produced code critically, identify errors, logic issues, and gaps before anything ships. QA your own development output to a high standard before handoff. Document work accurately and report progress across multiple concurrent projects. Continuous Improvement Stay current with evolving HubSpot platform capabilities, React patterns, and frontend best practices. Contribute to improving development efficiency and code quality standards within the team. Accurately track time across projects and flag risks or blockers early. Requirements MUST HAVES: 6+ years of experience working in a front-end web development role 3+ years experience customising and implementing websites and functionality in HubSpot Content Hub React and TypeScript experience Current HubSpot Content Hub Developer certification Advanced experience with HubSpot Themes, Templates, Modules, and HubDB, hubl Understanding of HubSpot standard object structure, associations, fields, and custom objects Experience with mobile development, including responsive design, content management, and SEO best practices Experience working in an agency environment with cross-functional teams PREFERRED SKILLS (nice to have) Experience with code collaboration in Git Experience of HubSpot serverless functionality Understanding of HubSpot REST API Understanding of React and TypeScript Understanding of API endpoint usage and OAuth authentication High-level understanding of AWS tools, AWS experience (read-only, no coding required)