Senior AI Engineer

At MyFitnessPal, our vision is to be the most trusted brand for improving your health through better food choices. We believe good health starts with what you eat. We provide the tools and resources to reach your weight management goals.

As a member of our MyFitnessPal Data Science team, you’ll have the opportunity to positively impact those users by creating the predictive models and AI that drives the MyFitnessPal ecosystem. In addition to technical expertise and passion, you’ll find that your teammates value collaboration, mentorship, and inclusive environments.

The Sr. AI Engineer is responsible for designing, fine-tuning, and deploying advanced AI models to solve real-world business challenges. You will focus on implementing scalable systems using large language models (LLMs) and vision-language models (VLMs), while optimizing pre-trained models for production use cases. In this role, you’ll collaborate closely with peers to build robust AI pipelines, perform model evaluation, and continuously improve system performance. You’ve taken ownership of technical solutions, mentored junior engineers, and delivered high-quality AI products in past roles. With a deep understanding of machine learning techniques, model optimization, and scalable AI infrastructure, you will contribute to creating innovative, reliable systems that drive business impact. Your passion for cutting-edge AI technologies and your commitment to ethical and responsible AI development will be key to succeeding in this role.

About our team:

MyFitnessPal encourages innovation and adoption of the latest technologies available to deliver an amazing experience for our members. Our diverse team of brilliant technologists builds and maintains native mobile applications, a web application, the world’s largest nutrition database, constantly evolving data science and AI/ML assets, the backend infrastructure and data platform required to support these applications and databases, as well as the business systems and data required to manage an awesome company. Technologies, services and/or languages we work with: MySQL, Snowflake, Databricks, Elasticsearch, Python, SQL, Kubernetes, Docker, Scale.ai, AWS Ground Truth, Doccano.

What you’ll be doing: 

• Lead the design, development, and deployment of large-scale production systems leveraging large language models (LLMs) and vision-language models (VLMs)
• Fine-tune and optimize pre-trained models such as GPT-4, OpenAI Whisper, CLIP, or similar for specific business needs
• Develop efficient pipelines for data preprocessing, model training, and deployment in production environments
• Design scalable APIs and infrastructure to integrate LLMs and VLMs into real-world applications
• Continuously monitor, evaluate, and improve model performance, ensuring alignment with business objectives and user needs
• Collaborate closely with cross-functional teams including product managers, data scientists, and software engineers to deliver AI-driven features and solutions
• Stay up to date with advancements in AI/ML, particularly in LLMs and VLMs, and identify opportunities for innovation and improvement
• Live our core values in all you do:
• Be Kind and Care
• Live Good Health
• Be Data-Inspired
• Champion Change
• Leave it Better than You Found It
• Make It Happen

Qualifications to be successful in this role: 

• Have 5+ years of experience in machine learning engineering, AI development, or a related field
• Have 3+ years of hands-on experience working with large language models (LLMs) and vision-language models (VLMs), including fine-tuning and deploying models such as GPT, BERT, CLIP, or ViT
• Have experience building scalable AI pipelines for training, evaluation, and deployment in production environments
• Are skilled in model optimization techniques such as quantization, pruning, and knowledge distillation to reduce latency and improve scalability
• Have a strong understanding of MLOps best practices, including CI/CD pipelines, model versioning, and deployment workflows
• Are comfortable conducting performance monitoring and using tools for logging, debugging, and evaluating AI models in production
• Possess strong analytical skills to assess model performance, interpret metrics, and recommend improvements
• Have a Bachelor’s, Master’s, or Ph.D. in Computer Science, Machine Learning, Artificial Intelligence, or a related field
• Stay up to date with advancements in AI research and technologies, applying the latest findings to improve existing systems

Please consider applying even if you don’t meet 100% of the qualifications. Research shows you can still be considered for a position if you meet some of the requirements. At MyFitnessPal, we’re building a fitness product for everyone and believe our team should reflect that. We encourage people of different backgrounds, experiences, abilities, and perspectives to apply.

The reasonably estimated salary for this role at MyFitnessPal ranges from $140,000 - $170,000. Actual compensation is based on factors such as the candidate’s skills, qualifications, and experience. In addition, MyFitnessPal offers a wide range of comprehensive and inclusive employee benefits for this role including healthcare, parental planning, mental health benefits, annual performance bonus, a 401(k) plan and match, responsible time off, monthly wellness and technology allowances, and others.