Wellhub (formerly Gympass) is seeking a Senior Backend Software Engineer to join their CARE team in Portugal. This role focuses on building next-generation AI-powered solutions, specifically working with generative AI, Retrieval-Augmented Generation (RAG), and LLMs fine-tuning. The position offers an exciting opportunity to work at the intersection of wellness and technology, developing innovative solutions that impact millions of users worldwide. The ideal candidate will have strong backend development experience and a passion for AI technologies. The company offers a flexible-first work environment, comprehensive benefits package, and a culture that genuinely prioritizes employee wellbeing. As part of a high-growth tech company that's transforming corporate wellness, you'll have the opportunity to work with global teams and contribute to making every company a wellness company. The role combines technical expertise with the company's mission to improve people's lives through better health and wellness solutions.