Web Developer II

About the Company

Catalyst Mobility (formerly CALSTART) is a mission-driven industry organization dedicated to transportation decarbonization and clean air for all. For over 30 years, they've been developing, assessing, and implementing large-scale zero-emission transportation solutions to mitigate climate change and support economic growth. Catalyst Mobility works with businesses, organizations, governments, and communities to provide scientific, technical, and policy support for regulatory development and clean technology acceleration.

About the Role

We're hiring a Web Developer II to support the development, maintenance, and continuous improvement of Catalyst Mobility's portfolio of websites. This role offers an opportunity to advance our clean transportation mission through accessible, reliable, and engaging digital experiences. Working within the Marketing Department's Web Team and reporting to the Senior Website Manager, you'll collaborate with marketing, design, communications, and program teams to build high-impact websites and campaigns while supporting an organization creating healthier communities. This United States-based position is ideal for an experienced developer comfortable with WordPress, PHP, and modern web technologies who wants to make a tangible difference.

Responsibilities

• Develop, maintain, and enhance websites, landing pages, and web applications using WordPress, PHP, HTML, CSS, JavaScript, and MySQL
• Independently manage assigned web properties, including routine maintenance, technical troubleshooting, testing, deployments, and post-launch support
• Build and modify WordPress themes, templates, reusable components, blocks, plugins, and custom functionality
• Translate approved designs and business requirements into responsive, accessible, and user-friendly web experiences that meet WCAG 2.2 AA standards
• Support website launches, redesigns, migrations, integrations, and strategic projects, including rebrand and rebuild initiatives
• Develop and maintain integrations with REST APIs, forms, analytics platforms, CRM systems, Salesforce, and other third-party services
• Monitor and improve website performance, security, accessibility, uptime, scalability, and Core Web Vitals across the web portfolio
• Maintain technical documentation and contribute to development standards, reusable components, testing practices, and Web Team workflows

Requirements

• Bachelor's degree in computer science, web development, software engineering, or a related field, or equivalent professional experience
• Five or more years of professional web development experience, including developing and maintaining WordPress websites
• Strong proficiency in HTML5, CSS3, responsive design, modern JavaScript, and building or modifying WordPress themes, templates, blocks, plugins, or custom functionality
• Working knowledge of PHP, MySQL, REST APIs, third-party web services, and Git-based development workflows
• Experience applying web accessibility standards (preferably WCAG 2.1 or newer) and understanding of website security, privacy, performance optimization, cross-browser compatibility, and testing practices
• Ability to independently troubleshoot issues across front-end, back-end, CMS, database, integration, and hosting environments
• Strong organizational, communication, collaboration, and problem-solving skills with the ability to manage multiple assignments and explain technical information to non-technical stakeholders

Nice to Have

• Experience with hosting and infrastructure platforms such as WP Engine, GoDaddy, Cloudflare, AWS, Azure, or Google Cloud
• Experience with Advanced Custom Fields, Gutenberg, WPBakery, or similar WordPress development tools
• Experience with CI/CD pipelines, multi-environment deployment workflows, Docker, or containerized local development
• Familiarity with Salesforce, HubSpot, marketing automation platforms, CRM integrations, Google Analytics, Google Tag Manager, or consent-management tools

Catalyst Mobility (formerly CALSTART) is a mission-driven industry organization focused on transportation decarbonization and clean air solutions, providing scientific, technical, and policy support for clean technology and infrastructure acceleration.