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Mid-Level Full Stack Developer - Fullstack Developer at Oppizi. Job type. - Full-time . Work type. - Remote (candidate must be located within Europe due to time zone). Schedule . - Monday to Friday, fixed hours (9:00 - 18:00). Expected start date. - ASAP. Salary (yearly) gross. - 35-000 - 40,000 EUR. Seniority level. - Mid-level. We're looking for an ambitious and enthusiastic Mid-Level Full Stack Developer to join our Marketing team. This role offers a unique opportunity to blend web development, business intelligence, and automation within a rapidly growing global tech company. . About Oppizi. Oppizi is a leading innovator in offline performance marketing, offering sophisticated technology to track, scale, and optimize flyer and direct mail campaigns. We provide targeted marketing solutions across three channels:. . Hand-to-Hand: Flyers delivered directly to consumers.. . Door-to-Door: Flyers distributed into residential mailboxes.. . Direct Mail: Personalized mail via national postal services.. . Operating in over 10 countries—including Australia, New Zealand, France, the UK, the US, and Canada—we partner with global brands such as UberEats, DoorDash, Getaround, DiDi, and Deliveroo.. Role Overview. As a Mid-Level Full Stack Developer, you'll be a pivotal link between our Marketing and Tech teams. Your role involves creating engaging digital experiences, automating critical business workflows, and delivering technical solutions that drive both marketing effectiveness and product enhancement.. If you thrive in a diverse role that combines creativity, technical challenge, and strategic thinking, we want to meet you!. Responsibilities. Web Development & Internal Tools. . Develop and maintain internal web applications (e.g., meeting booking platforms).. . Build interactive digital elements for marketing initiatives (calculators, microsites, interactive forms).. . Manage and enhance the company website, including new page creation, domain management, and server configurations.. . Business Intelligence & Automation. . Design and automate data workflows between Google Sheets, internal products, and external platforms.. . Implement automation scripts to streamline operational processes.. . Maintain and optimize reporting systems to ensure robust campaign tracking and analytics.. . Product Collaboration. . Collaborate closely with the Tech team to integrate backend systems with marketing initiatives.. . Provide technical insights and solutions aligning product capabilities with marketing requirements.. . Technical Skills. Front-End:. . React.js (including Hooks, Context API, and advanced state management).. . Strong expertise in HTML5, CSS3, JavaScript (ES6+).. . Nice to have: Experience with Lighthouse and performance optimization techniques.. . Back-End:. . Node.js and Express.js for robust and scalable web applications.. . RESTful API design and scheduled job automation.. . Databases:. . Proficient in SQL databases (PostgreSQL/MySQL), including schema design and optimization.. . Practical experience with NoSQL databases (MongoDB).. . CMS:. Experience in WordPress development (custom themes and plugins).. Cloud:. Hands-on knowledge of core AWS services (EC2, S3, RDS, Lambda, API Gateway).. Basic Requirements. . Proficient in English (both written and spoken). . Proficiency in React.js, including Hooks and Context API. . Strong command of HTML5, CSS3, and modern JavaScript (ES6+). . Experience with Node.js and Express.js for backend development. . Solid understanding of SQL (PostgreSQL or MySQL). . Experience with WordPress, including custom themes and plugins. . Experience with AWS services (EC2, S3, RDS, Lambda, API Gateway). . Desirables. . Experience with performance optimization tools like Lighthouse. . Hands-on experience with MongoDB. . Familiarity with building marketing-focused microsites or interactive tools. . Knowledge of RESTful API design and integration. . Understanding of automation tools and scripting (e.g., Python, Zapier, Make). . Experience with analytics and tracking frameworks (e.g., Google Tag Manager, GA4). . Basic UI/UX design sensibility. . Experience working in a startup or high-growth environment. . Company Location: Spain.