About SmartBug Media

SmartBug Media is a full-service digital agency focused on creating resilient growth across the customer lifecycle, with a strong emphasis on the HubSpot ecosystem. We integrate marketing, sales, revenue operations, customer success, e-commerce, and integrations, combining strategy, technology, and talent to drive client success. Recognized globally, we have been named to the Inc. 5000 list seven times, Adweek 100 for four consecutive years, and have received numerous Comparably awards for our culture and leadership. We are HubSpot's highest-rated partner worldwide, a two-time HubSpot North American Partner of the Year, and a proud Elite Partner. SmartBug is also a Google Premier Partner.

Senior Front-End Developer - HubSpot CMS Specialist

We are seeking a Senior Front-End Developer specializing in building and maintaining highly performant, scalable websites and digital experiences within the HubSpot CMS (Content Hub). This role demands deep expertise in front-end architecture, mastery of HUBL (HubSpot's templating language), and experience integrating modern frameworks like React for dynamic module creation. You will lead technical implementation and collaborate closely with design and marketing teams to deliver complex, best-in-class solutions.

Responsibilities

• Development & Architecture: Design, develop, and maintain high-quality, reusable HubSpot CMS themes, templates, and custom modules using HUBL, HTML5, CSS3, and JavaScript/ES6+.
• Implement dynamic front-end features and components using modern frameworks such as React.
• Lead technical scoping and implementation for website migrations and rebuilds on the HubSpot platform.
• Optimize all front-end code for maximum speed, scalability, cross-browser compatibility, and search engine optimization (SEO).
• Implement robust testing and quality assurance procedures for all developed assets.
• Collaboration & Leadership: Collaborate with UI/UX designers to translate wireframes and mockups into functional, pixel-perfect user interfaces.
• Serve as a technical mentor to junior developers, providing code reviews, guidance, and best practices for HubSpot development.
• Interface with the back-end development team to define API requirements and integrate data sources.
• Stay current with HubSpot product updates and the evolving front-end technology landscape.

Supervisory Responsibilities

This position may provide mentorship and technical guidance to junior developers but does not typically have direct supervisory responsibilities.

Requirements

• Expertise in HubSpot CMS development, including dynamic pages, blogs, and landing pages.
• Ability to clearly communicate technical concepts to both team members and non-technical stakeholders.
• Advanced proficiency in HUBL and the HubSpot Design Manager.
• Strong written and verbal communication skills.
• Demonstrated ability to deliver performant and semantic code.
• Excellent organization and time management skills with a high degree of attention to detail.
• Deep understanding of responsive design principles and mobile-first development.

Education and Experience

• Minimum of 5+ years of professional front-end development experience.
• Minimum of 2+ years of hands-on experience developing within the HubSpot CMS.
• Proven experience working with modern JavaScript frameworks, specifically React.
• Experience partnering with cross-functional teams (e.g., strategy, creative, dev).
• A Bachelor's degree in Computer Science, or a related technical field is required.
• Experience leading the full website development lifecycle.

Computer and Software Skills

• Expert-level proficiency in HTML5, CSS3/Sass/Less, and modern JavaScript/ES6+.
• Deep experience with version control (Git) and command-line tools.
• Experience with build tools (e.g., Webpack, Babel).
• Knowledge of HubSpot APIs and integrations.
• Back-end development experience (e.g., Node.js, Python, PHP) is a significant plus.
• Proficiency in Microsoft Office and Google Suite.

Certificates

• HubSpot CMS Developer Certification is required.
• Other relevant front-end development certifications (e.g., React Specialist) are a plus.

Other Qualifications

• Experience with Agile development methodologies (Scrum/Kanban).
• Experience with B2B and B2C website marketing and optimization.
• Portfolio of live HubSpot CMS projects is highly desirable.
• Knowledge of quality assurance and cross-browser testing processes.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.