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Senior Machine Learning Engineer

    • Boston, MA
  • Engineering
  • Full time
a man and woman sitting on a couch with laptops

About DraftKings

At DraftKings, AI is becoming an integral part of both our present and future, powering how work gets done today, guiding smarter decisions, and sparking bold ideas. It’s transforming how we enhance customer experiences, streamline operations, and unlock new possibilities. Our teams are energized by innovation and readily embrace emerging technology. We’re not waiting for the future to arrive. We’re shaping it, one bold step at a time. To those who see AI as a driver of progress, come build the future together.

The Crown Is Yours

As a Senior Machine Learning Engineer, you’ll design, implement, and scale production-grade data and machine learning pipelines that drive measurable business outcomes. You’ll partner closely with data scientists, engineers, and product managers to build systems that are well-structured, observable, and scalable. The Fintech Data Science team builds and maintains systems that protect DraftKings and its customers from fraud, payment risk, and abuse. Our mission is to enable explainable and reliable decision-making across all financial and operational flows — from registration and deposits, to gameplay and withdrawals.

What you’ll do

  • Design, build, and maintain ETL and feature engineering pipelines that power risk and payment applications.

  • Develop production ML systems, from training and evaluation through deployment and monitoring.

  • Partner with data scientists to productionize models that integrate into DK’s decisioning systems.

  • Build reliable, well-tested data workflows — from SQL-based feature transformations through model training and deployment.

  • Establish observability and monitoring for data quality, model drift, and service reliability.

  • Participate in code reviews, design discussions, and incident response, helping to maintain strong engineering practices.

  • Mentor junior engineers and contribute to shared tooling, documentation, and process improvements across the DS organization.

  • Support on-call rotations and post-incident reviews to ensure continuous system improvement.

What you’ll bring

  • 3+ years of experience writing production Python applications and working with structured data (SQL and data modeling).

  • Strong software engineering fundamentals — object-oriented design, testing, and version control.

  • Familiarity with ML Ops frameworks such as model registry, orchestrations, and feature stores.

  • Experience building or maintaining data and feature pipelines in a data-heavy environment.

  • Understanding of the ML lifecycle, including feature engineering, training, and model serving.

  • Ability to debug production issues across data, model, and infrastructure layers.

  • Strong collaboration and communication skills; able to translate technical solutions into operational outcomes.

  • Bachelor’s degree in Computer Science, Machine Learning, or a related technical field (Master’s preferred).

Join Our Team

We’re a publicly traded (NASDAQ: DKNG) technology company headquartered in Boston. As a regulated gaming company, you may be required to obtain a gaming license issued by the appropriate state agency as a condition of employment. Don’t worry, we’ll guide you through the process if this is relevant to your role.

The US base salary range for this full-time position is 134,400.00 USD - 168,000.00 USD, plus bonus, equity, and benefits as applicable. Our ranges are determined by role, level, and location. The compensation information displayed on each job posting reflects the range for new hire pay rates for the position across all US locations. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training. Your recruiter can share more about the specific pay range and how that was determined during the hiring process. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Ready to Own What's Next?

We know finding a new job can be intimidating. Don't let imposter syndrome stop you from applying! Even if you don't think you tick off every box in this job description, we'd still love for you to apply or join our Talent Community. 

DraftKings is proud to be an equal-opportunity employer. We do not tolerate discrimination of any kind and are committed to providing equal employment opportunities regardless of your gender identity, race, nationality, religion, sexual orientation, status as a protected veteran, or status as an individual with a disability.

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Your Benefits

In the US

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Health Benefits

We take your wellbeing and health seriously. DraftKings offers comprehensive health benefits, including various medical plans, dental, and vision.

Wellbeing Program

You’ll have free access to programs such as free therapy sessions with Lyra Mental Health Solution, Lyra Employee Assistance Program, the Calm App, Virtual Yoga Classes, and many more.

Parental Leave & Support

We are proud to give 14 weeks of 100% paid parental leave to all global team members and offer workplace lactation support. Additionally, we are pleased to partner with Care.com, a care finder and backup childcare partner for our U.S. employees. 

Family Planning

DraftKings is proud to offer a range of benefits that support family planning. We've got you covered whether you’re considering adoption, surrogacy, fertility treatments, or other family planning.

Flexible PTO

Go ahead and plan your next big getaway. When you join, you'll have flexible PTO if you work in the United States.

Pet Insurance

Your furry babies deserve the best care, too! We’ll help you save on vet expenses for accidents, illnesses, and more through our pet insurance benefit.

Gym Reimbursement

Whether it’s cardio, yoga, or training for a marathon, we’ll reimburse part of your gym membership once you enroll in a health insurance plan. All you need to do is find your favorite gym.

Financial Planning

We’ll help you plan for your financial future and success. From 401(k) matching to programs such as Origin Financial, we’ll set you up for future healthy financial habits and goals.

Commuter Benefits

No matter how you commute to and from the office, we want to help you lower costs. Once you join, you’ll have access to our commuter benefits to help you save money on your daily commute.

Tuition Reimbursement

We want you to expand your knowledge and continue learning within your career through our Tuition Reimbursement Program. Eligible team members can receive tuition reimbursement for educational courses related to their positions or another position at DraftKings.