Senior Backend Developer - Freelance

About Twine
Twine is a leading platform connecting top-tier freelancers, consultants, and contractors with companies that need creative and tech expertise. Trusted by Fortune 500 companies and innovative startups alike, Twine is the go-to marketplace for mission-critical projects. With a network of over 500,000 freelancers and 35,000+ companies, we provide a comprehensive solution for businesses looking to build agile teams and for freelancers seeking opportunities to work on high-impact projects.

Our Mission
At Twine, our mission is to empower creators, whether they're businesses or individual freelancers, to grow and thrive. As automation and AI reshape the workforce, we’re driving the shift towards remote, freelance-driven work. We connect companies with top creative talent, enabling collaboration, innovation, and success on a global scale.

About the Role
An American production company is seeking a senior backend developer. You will be responsible for the server-side web application logic as well as for the integration of the front-end part to help them manage a growing variety of digital development needs—coding responsive and mobile-friendly emails, landing pages, and full-fledged websites.

Requirements

• Minimum of 5 years of hands-on web development experience.
• Ability to multi-task and comfortable juggling several projects at once.
• Outstanding attention to detail.
• Flexibility to adapt to design requirement changes.
• Proven ability to manage multiple, ongoing timelines, as well as daily rush asks.
• A core understanding of industry best practices across digital channels.
• Experience working in a fast-paced agency environment strongly preferred.
  

Required Skills:

• PHP/MySQL
• Javascript
• Custom APIs (CRM platforms, cloud-based media management)
• MAMP or local setup preference (must be able to set up local environments for all projects with multiple versions of PHP installed to work on sites with older versions).
• WordPress development (custom templates/post types/modifying custom plugins)
• WP Woocommerce/Payment Processing Platforms such as Paypal/Stripe
• Experience building responsive, cross-browser compatible websites.
• Experience with WordPress backend/theme development.
• Experience with PHP dependency/packaging managers (Composer).
• Experience with SASS and CSS/JS compiling tools (such as gulp.js or a GUI application of your choice).
• Experience with version control (GIT, Subversion).
• Familiarity with Photoshop and/or Sketch to export assets from creative layouts.
• Experience with setting up custom tags in Google Tag Manager via javascript functions.