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Posted via Amazon Jobs

Sr. Machine Learning Engineer, Amazon FAI

Posted Oct 16, 2026

Role at a glance

Job function
AI & Data Machine Learning Engineering
Salary
Not yet verified Check the description for pay details; an amount or pay period has not been verified.
Location
Boston, Massachusetts, United States
Work arrangement
On-site
Experience
Senior Level Basic Qualifications - 5+ years of non-internship professional software development experience - 5+ years of programming with at least one software programming language experience - 5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience - Experience as a mentor, tech lead or leading an engineering team Preferred Qualifications - 8+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience - Bachelor's degree in computer science or equivalent
Education
Bachelor's degree in computer science or equivalent

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Role Summary

AI-generated

The Sr. Machine Learning Engineer designs, builds, and maintains systems and tooling for creating assets used to train and evaluate GenAI models. The role partners with product teams and Applied Scientists on agentic pipelines, model evaluation, experiments, and emerging research capabilities.

What You'll Do

  • Develop and maintain tooling for agentic pipelines that create frontier-level assets, such as RL gyms.
  • Work with product teams and scientists on techniques and tools for emerging research capabilities and model evaluation.
  • Manage project priorities, deliverables, timelines, and stakeholder communication.
  • Advise the team on trade-offs and best practices, and influence technical strategy.
  • Collaborate with Applied Scientists to plan experiments, prototype technology, and evaluate technical feasibility.
  • Deliver high-quality software on tight schedules in a dynamic environment.

Generated from the employer's posting. Verify important details before applying.

View full posting

Qualifications

Basic qualifications include 5+ years of non-internship professional software development experience; 5+ years programming with at least one software programming language; 5+ years leading design or architecture of new and existing systems; and experience as a mentor, tech lead, or engineering team lead.

Preferred

  • 8+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes,...
  • Bachelor's degree in computer science or equivalent

Original job description

Content provided by the employer

As an Sr. MLE on our team, you will design, build, and maintain systems for building frontier quality assets to train and evaluate our GenAI models. You’ll also work closely with our Applied Scientists to develop tools that support our modeling and evaluation team.

We operate at Amazon's large scale with the energy of a nimble start-up. If you have a learner's mindset, enjoy solving challenging problems, and value an inclusive team culture, you will thrive in this role, and we hope to hear from you.


Key job responsibilities
• Develop and maintain key tooling for building agentic pipelines to create frontier-level assets, such as RL gyms.
• Work closely with product teams, and scientists to create new techniques and tooling around emerging research capabilities and evaluating models to meet customer needs.
• Manage project prioritization, deliverables, timelines, and stakeholder communication.
• Illuminate trade-offs, educate the team on best practices, and influence technical strategy.
• Collaborate closely with Applied Scientists to investigate and plan experiments, prototype new technology, and evaluate technical feasibility.
• Operate in a dynamic environment to deliver high-quality software against tight schedules.


About the team
The FAI team has the mission to push the envelope in GenAI with LLMs, in order to provide the best-possible experience for our customers.

Basic Qualifications

- 5+ years of non-internship professional software development experience
- 5+ years of programming with at least one software programming language experience
- 5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- Experience as a mentor, tech lead or leading an engineering team

Preferred Qualifications

- 8+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
- Bachelor's degree in computer science or equivalent

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits.



USA, MA, Boston - 168,100.00 - 227,400.00 USD annually
amazon

About the company

amazon

Large Enterprise

Amazon is a global leader in e-commerce and cloud computing, founded in 1994 by Jeff Bezos. Initially starting as an online bookstore, it has since expanded its offerings to include a vast range of products and services, including electronics, fashion, and digital content. With Amazon Web Services (AWS), the company also provides powerful cloud solutions to businesses around the world. Known for its innovation, customer-centric approach, and commitment to operational efficiency, Amazon continues to shape the future of retail and technology, consistently seeking new ways to enhance customer experiences.