Senior Website (Backend) Developer (Freelance / Remote)

Clay
Remote Serbia Full-time 🌐 English
CL
Experience: Senior
Added to JobCollate: February 16, 2026

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Clay is seeking an experienced Freelance Senior Backend Developer to build and refine CMS-driven websites and digital products. The role requires extensive backend experience with various CMS, strong database knowledge, and proficiency with Git, with opportunities to work on high-profile international projects.

Job Description

Clay is a global design agency creating world-class digital products and brands. Our clients include Meta, Slack, Google, Snapchat, Amazon, Coinbase, and a range of innovative startups.We’re looking for an experienced Freelance Backend Developer with a strong background in CMS-driven websites and digital products. In this role, you’ll collaborate closely with our development team to build out new site admin panels and refine our existing administrative tools—both for our internal projects and for our clients.RequirementsYou are a perfect fit if you have:Extensive experience in backend development for corporate websites and digital products.Hands-on experience with multiple CMS, including Headless CMS (Sanity, Contentful, Strapi, Payload) and traditional CMS such as WordPress and Drupal.Strong understanding of databases, including PostgreSQL; experience with Redis is a plus.Proficiency with Git and modern version control workflows.Proven ability to take ownership of backend architecture and deliver high-quality results independently.Good command of written English.Availability to work within the CET timezone.Nice to have:Solid knowledge of TypeScript and JavaScript.Familiarity with Webflow and website builders / no-code or low-code platforms is a plus.BenefitsFlexible remote work from anywhere in the world.Opportunities to work on high-profile projects with international clients.Collaboration with a talented, award-winning team of designers and developers.Originally posted on Himalayas

Full Description

Clay is a global design agency creating world-class digital products and brands. Our clients include Meta, Slack, Google, Snapchat, Amazon, Coinbase, and a range of innovative startups.We’re looking for an experienced Freelance Backend Developer with a strong background in CMS-driven websites and digital products. In this role, you’ll collaborate closely with our development team to build out new site admin panels and refine our existing administrative tools—both for our internal projects and for our clients.RequirementsYou are a perfect fit if you have:Extensive experience in backend development for corporate websites and digital products.Hands-on experience with multiple CMS, including Headless CMS (Sanity, Contentful, Strapi, Payload) and traditional CMS such as WordPress and Drupal.Strong understanding of databases, including PostgreSQL; experience with Redis is a plus.Proficiency with Git and modern version control workflows.Proven ability to take ownership of backend architecture and deliver high-quality results independently.Good command of written English.Availability to work within the CET timezone.Nice to have:Solid knowledge of TypeScript and JavaScript.Familiarity with Webflow and website builders / no-code or low-code platforms is a plus.BenefitsFlexible remote work from anywhere in the world.Opportunities to work on high-profile projects with international clients.Collaboration with a talented, award-winning team of designers and developers.Originally posted on Himalayas

Required Skills

Development &-Design Senior-Backend-Developer Senior-Web-Developer Backend-Web-Developer Remote-Senior-Backend-Engineer Senior-Backend-Engineer-(Node.Js)