Senior Applied AI Scientist - Production ML & LLMs

Lumen; Hartford (CT); On-site; USD 167,000 - 279,000; Full time

Job summary

Lumen is seeking a highly technical, product-minded Senior Lead Applied AI Scientist to design, build, deploy, and continuously improve production-scale AI solutions of all varieties: agents, generative, ML, etc. In this role, you will partner with business, product, engineering, and technology leaders to translate high-value opportunities into AI-powered solutions that deliver measurable business impact.

You will combine deep expertise in AI and machine learning with strong software

Qualifications

• Seven Plus years of experience in applied AI, machine learning, or data science, including production AI deployments.
• Proven track record of delivering AI solutions that drive measurable business outcomes.
• Deep expertise in machine learning, statistics, experimentation, predictive analytics, and modern AI techniques.
• Hands-on experience building LLM, RAG, agentic, and machine learning solutions.
• Strong experience with AI evaluation, model performance optimization, responsible AI, and production monitoring.
• Proficiency in Python and modern AI/ML frameworks such as PyTorch, TensorFlow, Hugging Face, MLflow, or similar technologies.
• Experience with MLOps, LLMOps, cloud AI platforms, APIs, and software engineering best practices.
• Strong product mindset, problem-solving skills, and ability to communicate complex concepts with technical and business stakeholders.

Responsibilities

• Design, build, and optimize AI solutions from concept through production deployment.
• Partner with business and product teams to identify opportunities, define success metrics, and validate value through rapid experimentation.
• Develop advanced AI systems leveraging machine learning, generative AI, retrieval, predictive modeling, and agentic architectures.
• Define evaluation frameworks and continuously improve quality, reliability, safety, performance, and cost.
• Partner with Engineering to deliver scalable, production-ready solutions using MLOps and LLMOps best practices.
• Contribute reusable frameworks, evaluation assets, and technical standards that accelerate AI adoption across the enterprise.
• Provide technical leadership, mentorship, and guidance on complex AI initiatives.

Skills

Applied AI

Machine learning

Python

MLOps

LLMOps

Product mindset

Leadership

Education

Master's degree or PhD in CS/AI/ML/Statistics

Tools

PyTorch

TensorFlow

Hugging Face

MLflow

Job description

Lumen is seeking a highly technical, product-minded Senior Lead Applied AI Scientist to design, build, deploy, and continuously improve production-scale AI solutions of all varieties: agents, generative, ML, etc. In this role, you will partner with business, product, engineering, and technology leaders to translate high-value opportunities into AI-powered solutions that deliver measurable business impact.

You will combine deep expertise in AI and machine learning with strong software