ICF is seeking a On-call Full-Stack Developer to provide support for a portfolio of provider search and discovery websites as well as e-commerce and rebate platforms. This role requires a flexible engineer who can work across multiple technology stacks-including Shopify/Liquid, Node.js/Express, PostgreSQL, and AWS, as well as Next.js (React), Azure-hosted APIs, and SQL Server-while delivering reliable, high-quality solutions that keep this portfolio of sites running effectively. The successful