Principal Machine Learning Engineer, Matching & Recommendations

Required

• Typically requires 10–15 years of experience, though we welcome candidates with alternative backgrounds that demonstrate equivalent skills.
• Deep expertise in machine learning, with hands-on experience building and deploying large-scale systems in production environments
• Strong proficiency in Python and at least one major ML framework (e.g., PyTorch, TensorFlow), with experience in areas such as recommendation systems, ranking models, or NLP
• Expertise in prompting and fine-tuning Large Language Models (LLMs) and building production AI Agents
• Proven experience designing scalable data and ML pipelines using tools such as Spark, Airflow, or similar distributed systems
• Demonstrated ability to operate as a senior individual contributor, influencing technical strategy and decision-making without direct authority
• Experience partnering effectively across functions, collaborating with purpose, and taking ownership of outcomes in complex organizational environments
• A track record of mentoring and uplifting others, role modeling Respect and Excellence while building inclusive, high-performing teams
• Strong AI fluency, with the ability to independently design, evaluate, and optimize ML systems, and guide others in the responsible and effective application of AI
• Bumble Inc. is the parent company of Bumble Date, BFF, and Badoo. The Bumble platform enables people to build healthy and equitable relationships, through Kind Connections. Founded by Whitney Wolfe Herd in 2014, Bumble was one of the first dating apps built with women at the center and connects people across dating (Bumble Date) and friendship (BFF). BFF is a friendship app where people in all stages of life can meet people nearby and create meaningful platonic connections and community based on shared interests. Badoo, which was founded in 2006, is one of the pioneers of web and mobile dating products.
• AI is important to us. We’re excited by people who are curious and experimental, and who think thoughtfully about how AI can amplify their impact and outcomes.
• We encourage you to use AI responsibly as you prepare your application. Please don’t use it to fabricate experiences or answer questions live in interviews. We care deeply about authenticity and want to understand your real skills, judgment and voice, because building a meaningful, genuine connection with you matters to us.