Senior Machine Learning Engineer – Responsible AI, Applied Research Science

Zigsaw

Senior Machine Learning Engineer at Pinterest focusing on responsible AI and mitigating bias in large-scale ML applications. Collaborating across teams and shaping technical strategy for responsible AI initiatives.

Posted 4/13/2026full-timeSan Francisco • California • 🇺🇸 United StatesSenior💰 $189,721 - $332,012 per yearWebsite

About the role

Key responsibilities & impact

Design and drive projects in the responsible AI frontier to identify, avoid, and mitigate bias across a wide range of ML applications
Collaborate with other engineering teams to leverage their platforms and signals
Mentor junior engineers on the Responsible AI team and across the company
Work with the team and senior leaders at the company to define and drive technical strategy in this area.

Requirements

What you’ll need

4+ years working experience in the engineering teams that build large-scale ML-driven user-facing products
1+ years experience leading cross-team engineering efforts
Extensive, real-world experience applying advanced ML methods to production systems, with a strong track record in responsible technology
Deep familiarity with cutting-edge ML architectures (e.g., transformer-based models, 2-tower architectures, LLMs and VLMS)
Proven ability to measure, deploy, and refine fairness interventions and broader Responsible AI solutions at scale
Masters or PhD in Comp Sci or related fields
Publications at top ML conferences (nice to have)

Benefits

Comp & perks

Health insurance
Paid time off
Flexible working arrangements
Professional development opportunities
Equity options

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

machine learningresponsible AIML architecturestransformer-based models2-tower architectureslarge-scale systemsfairness interventionsproduction systemsadvanced ML methodsdata analysis

Soft Skills

mentoringcollaborationleadershiptechnical strategycommunicationproblem-solvingteamworkproject managementcritical thinkingadaptability

Certifications

Masters in Computer SciencePhD in Computer Science