Amazon

Sr. Machine Learning Engineer, PXT EXR-Ops Tech

Amazon • $168K — $227K *
Enterprise Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of professional software development experience
  • 5+ years of programming in at least one language
  • 5+ years leading design or architecture of systems
  • Experience mentoring or leading an engineering team
  • Experience deploying machine learning systems for large-scale optimizations
  • Experience building large-scale ML and AI solutions
  • 4+ years of distributed systems experience or relevant degree
  • Familiarity with ML and LLM fundamentals, including architecture and optimization

Responsibilities

  • Define and drive ML technical strategy and architecture
  • Design and implement complex, multi-model ML systems
  • Architect ML platforms for rapid experimentation and deployment
  • Lead design of real-time and batch ML serving infrastructure
  • Drive adoption of ML best practices and model governance
  • Evaluate and introduce new ML technologies and methodologies
  • Lead cross-functional initiatives across teams
  • Influence technical decisions through design and architecture reviews
  • Mentor and develop ML engineers, raising the hiring bar
  • Drive operational excellence through defined SLAs and automation

Benefits

  • Comprehensive health insurance (medical, dental, vision)
  • 401(k) matching
  • Paid time off and parental leave
  • Flexible Spending Accounts
  • Adoption and Surrogacy Reimbursement coverage
  • Mental Health Support and EAP services
Full Job Description
We are looking for a Senior Machine Learning Engineer who will serve as a technical leader, driving the design and delivery of complex, large-scale ML systems that have significant business impact. In this role, you will define the ML architecture and technical strategy for your team, influence cross-organizational ML platform decisions, and raise the bar for ML engineering excellence. You will build super-intelligent AI systems, lead the development of production-grade AI services including generative AI and LLMs, and mentor a team of ML engineers. This is a high-impact role requiring deep technical expertise, strong judgment, and the ability to operate in ambiguous problem spaces.

Key job responsibilities
• Define and drive the ML technical strategy and architecture for your team and adjacent teams
• Design and lead the implementation of complex, multi-model ML systems at Amazon scale
• Architect ML platforms and frameworks that enable rapid experimentation and deployment across the organization
• Lead the design of real-time and batch ML serving infrastructure with high availability and low latency
• Drive adoption of ML best practices including MLOps, model governance, responsible AI, and cost optimization
• Evaluate and introduce new ML technologies, frameworks, and methodologies (e.g., foundation models, RAG, fine-tuning, RLHF)
• Lead cross-functional initiatives spanning science, engineering, product, and business teams
• Influence org-wide technical decisions through design reviews, architecture reviews, and technical writing (design documents, white papers)
• Mentor and develop L4 and L5 ML engineers; raise the hiring bar as a bar raiser or interviewer
• Drive operational excellence: define SLAs, build dashboards, automate incident response, and reduce operational burden

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

- Experience in technical support, or experience with training and deploying machine learning systems to solve large-scale optimizations

- Experience building large-scale machine learning and AI solutions at Internet scale

- Experience in creating and managing complex, cross-team project plans

- 4+ years of distributed systems experience, or Bachelor's degree in engineering, technology, computer science, machine learning, robotics, operations research, statistics, mathematics or equivalent quantitative field

- Experience with Machine Learning and Large Language Model fundamentals, including architecture, training/inference lifecycles, and optimization of model execution, or experience building complex software systems that have been successfully delivered to customers

PREFERRED QUALIFICATIONS

- 5+ 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

- Experience leading engineering discussions around technology decisions and strategy related to a product

- • Experience defining ML platform strategy and building reusable ML infrastructure

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, WA, Bellevue - 168,100.00 - 227,400.00 USD annually

About Amazon

Audible is a provider of spoken audio information and entertainment , on the Internet. They provide premium spoken audio content, such as audio versions of books and newspapers and radio programs, that is delivered over the Internet and played back on personal computers and hand-held electronic devices. The Audible service allows consumers to purchase and download their content from their Website, store it in digital files and play it back on personal computers and electronic devices. More than 15,000 hours of audio content are available on their Web site, including audio versions of books, periodicals and radio programs. Several manufacturers have agreed to support and promote the playback of their content on their hand-held audio-enabled electronic devices.

Amazon Careers

Joining Amazon presents an unparalleled opportunity to become part of a vibrant team pushing the boundaries of innovation and growth in the global marketplace. As a leader in e-commerce, technology, and logistics, Amazon offers a variety of job opportunities that cater to a range of skills and professional interests. Work You’ll Do At Amazon, every day is an opportunity to collaborate with the brightest minds in technology and business to redefine what’s possible. Whether you’re interested in software development, marketing, human resources, or customer service, Amazon has a position waiting for you. Transform the way the world shops and innovates with our diverse and inclusive team. Amazon is not just a company; it’s a community where you can drive real change and contribute to projects impacting millions globally. Lead with Innovation and Leadership Amazon is the perfect place to enhance your leadership and innovation skills. Our culture encourages pushing the envelope and imagining the unimaginable. Here, you will lead projects that challenge the status quo and define new industry standards. Work with a team that values diversity and is committed to creating an inclusive environment. Our leadership is focused on harnessing the collective power of unique perspectives to foster growth and innovation. Explore Amazon’s Employment Benefits Amazon’s commitment to its employees extends beyond just career growth. We offer competitive benefits, including health care, parental leave, and diversity training, ensuring that our team not only excels professionally but also enjoys well-being and security. Internship and Networking Opportunities Start your career with an Amazon internship and gain hands-on experience that matters. Our internships provide a gateway to full-time employment and an opportunity to network with professionals across various sectors of the company. Future-Proof Your Career With Amazon, your career path is filled with numerous opportunities for advancement. Our learning and development programs are designed to nurture your professional growth and keep you at the forefront of industry trends. Stay Connected Join Our Team Discover the job opportunities at Amazon that match your skills and interests. We are constantly on the lookout for passionate, curious, and innovative team players ready to make a difference. Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. Job Alert Emails Customize your subscription to receive job alerts, the latest news, and insider tips tailored to your preferences. Explore the exciting and rewarding career opportunities that await at Amazon. Amazon is more than just a company—it’s a platform for building a promising future. Whether you’re starting or looking to advance your career, Amazon offers the resources, support, and network you need to succeed. Join us, and be a part of our continuing mission to be Earth's most customer-centric company.
Learn more about Amazon
Size
1,608 employees
Market Cap
$832.6 billion
Industry
Net Income
$21.3 billion
Founded
1994
5 Year Trend
+28.1%
Revenue
$386 billion
NASDAQ

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