AI Researcher - Foundation Models & Generative AI - Base44

Job description

We are seeking a highly accomplished AI Researcher to be part of the development of next-generation Foundation Models and Generative AI systems. In this role, you will bridge the gap between cutting-edge academic research and production-grade AI infrastructure. You will build, design, and fine-tune large-scale architectures (including LLMs, Multimodal, and Tabular Foundation Models) while applying them to complex, real-world domains like agentic behavior, coding and decision making. In your day-to-day, you will: Conduct pioneering research in deep learning and generative AI, specializing in Foundation Models, NLP, alignment, and multimodal learning Deal with the impact of the models on production traffic, cost quality and latency Train and scale state-of-the-art architectures using techniques like Post-Training SFT, Knowledge Distillation, LoRA, and sparse/hybrid model architectures Own the AI lifecycle—from algorithmic prototyping and synthetic data generation to deploying production-grade AI features in fast-paced or big-data environments Drive research initiatives, author publications/patents, and collaborate with other research teams to integrate intelligent capabilities into core products 5+ years of experience as a Research Scientist or Algorithm Developer within world-class AI labs or high-growth GenAI startups Ph.D. or Master’s degree with honors in computer science, data science, statistics, or a highly quantitative field from a top-tier institution Expert-level proficiency in PyTorch and deep learning training/inference optimization Hands-on experience training, fine-tuning, or optimizing large-scale LLMs in research or production environments Advanced programming skills in Python and/or C/C++ with experience in production-grade code and big data infrastructure A portfolio of peer-reviewed publications in top-tier AI/ML venues or granted patents in advanced machine learning systems We're Base44, a newly acquired part of Wix, on a mission to redefine how software is built. Our AI-powered platform enables anyone to create custom software applications using natural language—no coding required. Operating like a startup within Wix, we're fast, collaborative, and focused on solving complex problems with simple, powerful solutions. We exist to empower creators, solo founders, startups, entrepreneurs, and side hustlers to bring their ideas to life. Whether you're launching a product, validating a concept, or exploring a new idea, Base44 is here to help you build it. We're growing rapidly, the potential is immense, and with your expertise, we can drive user-driven growth to new heights.