Senior AI Systems Engineer — Impactful Biomed ML (Hybrid)

Pfizer Inc; Bothell (WA); Hybrid; USD 106,000 - 177,000; Full time

Benefits offered by this job

401(k) plan with matching

Paid vacation

Holidays and personal days

Parental and medical leave

Health benefits

Job summary

Pfizer Inc. is seeking a Senior AI Research Engineer to own end-to-end AI systems enabling scientific discovery across discovery, development, and translational science.

You will lead architecture, implementation, testing, deployment, and monitoring across multimodal models and intelligent agents. The role blends human expertise with AI to transform how scientific work is conducted, with hybrid on-site work expected roughly 2.5 days per week.

Qualifications

• PhD in Computer Science, Computer Engineering, Electrical Engineering, Applied Mathematics, or a related technical discipline with demonstrated experience building software, systems, or machine learning solutions; OR Master's degree with 2+ years of relevant experience; OR Bachelor's degree with 4+ years of relevant experience
• Proven experience designing and delivering production software or machine learning systems; owning technical solutions from architecture through deployment
• Experience building reliable systems in cloud, distributed computing, or HPC environments; developing maintainable, testable, and scalable software

Responsibilities

• Build the AI systems behind tomorrow's scientific breakthroughs.
• Design, develop, and deploy production-grade AI systems for multimodal models and intelligent agents.
• Engineer data pipelines, retrieval systems, evaluation frameworks, knowledge systems, inference services, and human-in-the-loop workflows.
• Create scalable software enabling AI capabilities to move from experimentation to everyday scientific use.
• Lead architecture, implementation, testing, deployment, monitoring, and continuous improvement for your area of ownership.
• Drive projects from concept through production and operational support.

Skills

Python

PyTorch

JAX

Software architecture

Distributed computing

APIs

CI/CD

Education

PhD in Computer Science, Computer Engineering, Electrical Engineering, Applied Mathematics, or related technical discipline

MS with 2+ years of relevant experience

BS with 4+ years of relevant experience

Tools

Containers

Kubernetes

Distributed GPU training

Model serving/inference

Job description

Pfizer Inc. is seeking a Senior AI Research Engineer to own end-to-end AI systems enabling scientific discovery across discovery, development, and translational science.

You will lead architecture, implementation, testing, deployment, and monitoring across multimodal models and intelligent agents. The role blends human expertise with AI to transform how scientific work is conducted, with hybrid on-site work expected roughly 2.5 days per week.