Senior Full-Stack Web Developer - PHP, JavaScript

Industry: FinTech / Media / Stock Market Information Product: Ad-supported financial information platform and app for market data, news, and virtual portfolios Our client is a prominent financial information and media company in Germany. They operate a comprehensive financial portal, offering real-time and historical stock market data, news, and analytical tools for individual investors. This platform also features a vast database for certificates, leveraged products, and funds, alongside an active moderated forum for community interaction. Beyond their public portal, this client is a key provider of financial data and web services to third parties. They license a broad spectrum of financial data, including price data, master data, and fundamental figures, to a wide range of financial service providers, brokers, and asset managers. They also develop and integrate various financial tools like portfolio and charting widgets, making them a crucial technical partner for numerous institutions in the German financial sector. They are looking for a Senior Full-Stack Web Developer to join their dynamic team. Location: Berlin, Hybrid – up to 2 days/week remote Contract Type: Full-time, permanent (40h/week; part-time from 30h possible) Vacation: 30 days Key Responsibilities As a Senior Full-Stack Web Developer, you will: • Rebuild an existing legacy product from scratch ("greenfield") • Collaborate with designers, SEO experts, and leadership on product vision • Develop and maintain frontend and backend functionality • Write clean, scalable, and well-documented code • Implement features that directly impact user experience • Participate in sprints, code reviews, and agile ceremonies Must-Have Skills • 5+ years experience in full-stack development • Strong in: PHP 8.4, JavaScript, HTML/CSS, MySQL • Good command of both German (B2) and English (B2) . • Possess a confident, communicative, and team-oriented approach. Nice-to-Have Skills • Symfony, or similar: Laravel, Drupal • jQuery, Git • Financial markets/stock trading knowledge • Experience migrating legacy systems • Familiarity with building modular, scalable web apps