Help shape the future of grocery shopping by building AI systems that connect people with the food they love. At Instacart, you’ll design, scale, and deploy cutting-edge LLM-driven models that power search, recommendations, and personalized shopping experiences for millions of users.
About Instacart
Instacart is transforming the grocery industry with a mission to give everyone access to the food they love and more time to enjoy it together. Serving millions of households, Instacart is more than grocery delivery—it’s about building a smarter, more connected marketplace with opportunities for both customers and personal shoppers. Our Flex First approach gives employees the freedom to choose where they work best while fostering community through in-person collaboration.
Schedule
- Full-time position
- Flex First remote policy (work from home, office, or hybrid)
- U.S. based role with competitive salary ranges depending on location
What You’ll Do
- Architect and scale LLM systems that unify search, personalization, ranking, ads, and merchandising
- Develop agentic workflows for cart starters, thematic bundles, and dynamic storefronts
- Fine-tune large language models (SFT, DPO, GRPO) on behavioral feedback signals
- Design discovery pipelines from semantic retrieval to multi-objective optimization
- Collaborate with product, design, infra, and ads teams to deliver measurable business impact
- Mentor and coach ML engineers to grow technical expertise and leadership
What You Need
- 5+ years of industry ML experience, with at least 3 in technical leadership
- Proven record deploying large-scale ML/AI systems in production
- Proficiency in Python, SQL, Pandas, scikit-learn, XGBoost, TensorFlow/Keras
- Strong communication skills and ability to work across diverse teams
Preferred Skills
- Deep expertise with PyTorch, TensorFlow, JAX, and transformer-based LLM architectures
- Hands-on experience with fine-tuning, prompt engineering, and RLHF methods
- Strong foundation in neural networks, generative models, and multimodal AI
- Experience optimizing inference at scale across architecture, training, and infrastructure
- Passion for applying cutting-edge AI research to real-world systems
Benefits
- Highly competitive compensation with equity grants and annual refreshes
- Comprehensive health, dental, and vision coverage
- Paid time off, parental leave, and wellness programs
- Flexible work arrangements with regular in-person team events
Join Instacart and help redefine how the world discovers, shops, and shares food through the power of AI.
Do the best work of your life with a company shaping the future of grocery.
Happy Hunting,
~Two Chicks…