Senior Lead Applied AI Scientist — Production ML & LLMs

Lumen; Hartford (CT); Remote; USD 194,000 - 242,000; Full time

Job summary

Lumen seeks a Senior Lead Applied AI Scientist to design, build, deploy, and continuously improve production-scale AI solutions across agents, generative AI, ML, and more. You will partner with business, product, and engineering leaders to translate opportunities into high-impact AI outcomes.

The role requires hands-on, practical expertise in AI, ML, and software engineering, with a focus on rapid prototyping, evaluation, and scale, while navigating technical and business tradeoffs for

Qualifications

• 7+ years of experience in applied AI, ML, or data science, including production AI deployments.
• Proven track record delivering AI solutions with measurable business impact.
• Deep expertise in machine learning, statistics, experimentation, and modern AI techniques.
• Hands-on experience building LLM, RAG, agentic, and machine learning solutions.

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

LLM/RAG/Agentic

MLOps/LLMOps

Model Evaluation

Product Mindset

Stakeholder Communication

Education

Master's degree or PhD in CS/AI

Tools

PyTorch

TensorFlow

Hugging Face

MLflow

APIs

Cloud AI platforms

Job description

Lumen seeks a Senior Lead Applied AI Scientist to design, build, deploy, and continuously improve production-scale AI solutions across agents, generative AI, ML, and more. You will partner with business, product, and engineering leaders to translate opportunities into high-impact AI outcomes.

The role requires hands-on, practical expertise in AI, ML, and software engineering, with a focus on rapid prototyping, evaluation, and scale, while navigating technical and business tradeoffs for