Full-Time Senior Front-End Developer

Smartbugoperatingllc is hiring a remote Full-Time Senior Front-End Developer. The career level for this job opening is Experienced and is accepting USA based applicants remotely. Read complete job description before applying.

Smartbugoperatingllc

Job Title

Senior Front-End Developer

Posted

Career Level

Full-Time

Career Level

Experienced

Locations Accepted

USA

Job Details

Responsibilities
  • 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, utilizing modern frameworks such as React.
  • Lead technical scoping and implementation for website migrations and rebuilds on the HubSpot platform.
  • Ensure all front-end code is optimized for maximum speed, scalability, cross-browser compatibility, and search engine optimization (SEO).
  • Implement robust testing and quality assurance procedures for all developed assets.
  • 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.
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

FAQs

What is the last date for applying to the job?

The deadline to apply for Full-Time Senior Front-End Developer at Smartbugoperatingllc is 10th of December 2025 . We consider jobs older than one month to have expired.

Which countries are accepted for this remote job?

This job accepts [ USA ] applicants. .

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