✦ Luna Orbit — AI & Machine Learning

Senior AI Research Scientist, Explainable Artificial Intelligence

at Merck

📍 USA - Massachusetts - Cambridge (320 Bent Street) Hybrid 💰 $144K – $227K USD / year Posted April 15, 2026
Salary $144K – $227K USD / year
Type Not Specified
Experience senior
Exp. Years 0-3+ years of full-time experience (with PhD), 4+ years of experience (with MS), or 7+ years of experience (with BS)
Education PhD, MS, or BS in Computer Science, Statistics, Physics, Engineering, Mathematics, Data Science, AI/Machine Learning, Computational Biology, Bioinformatics, or related STEM field
Category AI & Machine Learning

This role focuses on developing explainable AI methods for foundation models used on biological and omics data. You will build benchmarks and evaluations, create fit-for-purpose datasets, and publish research while working cross-functionally with computational biology, data science, and engineering teams.

  • Extract biological insights from foundation models and omics data
  • Develop post-hoc and intrinsic explainability methods
  • Build rigorous benchmarks and evaluation tasks
  • Fine-tune, evaluate, and debug AI models and data at scale
  • Publish in relevant conferences and journals

You will work with transformer-based and related state-space foundation models for -omics data, developing both post-hoc and intrinsic explainability techniques. The role emphasizes graph neural networks, large-scale model fine-tuning/evaluation/debugging, and implementing rigorous benchmark-driven assessment using Python with the PyTorch ecosystem.

The ideal candidate is a senior-level AI researcher with a PhD (or equivalent MS/BS experience) in a STEM field and strong experience applying foundation models to bioinformatics and omics data. They have hands-on expertise in explainable AI, including post-hoc and intrinsic explainability, and can build rigorous benchmarks and evaluation pipelines using Python and the PyTorch ecosystem.

PythonPyTorch ecosystemgraph neural networksfine-tuningevaluatingand debugging modern AI models and data at scaledeep learning frameworks like the PyTorch ecosystemdemonstrated expertise in classical machine learning and modern deep learning approachesexperience extracting biological insights from foundation modelsPhDMSor BS in a related STEM field
models that require multiple GPUs for inferencerelevant publications in scientific journalsexperience contributing to research communities
PythonPyTorchNeurIPSICML
foundation modelstransformer-based modelsstate-space modelspost-hoc explainabilityintrinsic explainabilitybenchmarksevaluation tasksfine-tuningdebuggingPythonPyTorchgraph neural networksomics databioinformaticscomputational biologyNeurIPSICML
foundation modelstransformer-based modelsstate-space modelspost-hoc explainabilityintrinsic explainabilitybenchmarksevaluation tasksfine-tuningevaluatingdebugging modern AI modelsdata at scalePythondeep learning frameworksPyTorch ecosystemgraph neural networksgraph neural networks (GNNs)omics dataclassical bioinformatics tasksbioinformaticsbioinformatics taskscomputational biologybioinformaticsstatistical machine learningmachine learningpublish research findingsNeurIPSICML
cross-functional collaborationcommunication skillscollaborative multi-disciplinary teamworkknowledge sharingcollaborations with scientific communitystay up to date with latest advancementsproblem-solving
Industry Healthcare IT
Job Function Develop explainable AI foundation-model methods for bioinformatics and omics-driven biological discovery
Role Subtype AI Researcher
Tech Domains Python, AI & Machine Learning
Senior AI Research ScientistExplainable Artificial IntelligenceExplainable AIAI/ML-firstfoundation modelstransformer-basedstate-space modelspost-hoc explainabilityintrinsic explainabilitybenchmarksevaluation tasksfine-tuningdebuggingPythonPyTorchPyTorch ecosystemgraph neural networksGNNomics databioinformaticscomputational biologyNeurIPSICML

Must have PhD, MS, or BS in a related STEM field (as specified), Must have proven experience with Python and the PyTorch ecosystem, Must have expertise with graph neural networks

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