Senior Machine Learning Engineer, Ads Training Platform Remote - United Kingdom
Senior Machine Learning Engineer, Ads Training Platform Remote - United Kingdom

Senior Machine Learning Engineer, Ads Training Platform Remote - United Kingdom

Full-Time 43200 - 72000 ÂŁ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and maintain large-scale distributed training infrastructure for Ads ML models.
  • Company: Join Reddit, a vibrant community with over 101M daily active users, fostering open conversations.
  • Benefits: Enjoy flexible remote work, private medical care, pension scheme, and generous vacation policies.
  • Why this job: Be part of a cutting-edge team improving ad targeting and efficiency in a dynamic environment.
  • Qualifications: 5+ years in infrastructure engineering; experience with Ray platform and distributed systems required.
  • Other info: Reddit values diversity and offers accommodations for individuals with disabilities during the hiring process.

The predicted salary is between 43200 - 72000 ÂŁ per year.

Senior Machine Learning Engineer, Ads Training Platform

Remote – United Kingdom

Reddit is a community of communities. It’s built on shared interests, passion, and trust and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 101M+ daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit redditinc.com .

Reddit has a flexible first workforce! if you happen to live close to our physical office location our doors are open for you to come into the office as often as you\’d like. Don\’t live near one of our offices? No worries: You can apply to work remotely from the Netherlands or the United Kingdom.

Team OverviewThe Ads Training Platform pod builds and maintains the distributed training and data processing infrastructure that powers Reddit’s Ads machine learning models. We focus on enabling fast, reliable, and scalable model training across large datasets, supporting the Ads ML teams in improving ad targeting, conversion prediction, and advertiser value.

We are looking for an engineer with deep experience in infrastructure, distributed systems, and ML platform operations to help evolve and scale our training systems.

What You’ll Do

  • Design, build, and maintain large-scale distributed training infrastructure for Ads ML models.
  • Develop tools and frameworks on top of the Ray platform.
  • Build tools to debug, profile, and tune distributed training jobs for performance and reliability.
  • Integrate with object storage systems and improve data access patterns.
  • Collaborate with ML engineers to improve model training time, efficiency, and GPU training costs..
  • Drive improvements in scheduling, state management, and fault tolerance within the training platform to enhance overall performance.

What You Bring

  • 5+ years in infrastructure/platform engineering or large-scale distributed systems.
  • 2+ years hands-on experience with Ray platform.
  • Strong understanding of distributed computing principles (task scheduling, fault tolerance, state management).
  • Experience with distributed storage systems and large-scale data processing.
  • Proven ability to debug and profile distributed jobs.
  • Experience with deep learning frameworks (PyTorch, TensorFlow) is a big plus.
  • Bonus: model optimization for distributed training, Ads ML experience.
  • Pension Scheme
  • Private Medical and Dental Scheme
  • Life Assurance, Income Protection
  • Workspace benefit for your home office
  • Family Planning Support
  • Flexible Vacation & Reddit Global Days Off

In select roles and locations, the interviews will be recorded, and transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out recording, transcription and summarization prior to any scheduled interviews.

During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our Candidate Privacy Policy for Potential Employees and Contractors .

Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.

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Senior Machine Learning Engineer, Ads Training Platform Remote - United Kingdom employer: Reddit, Inc.

Reddit is an exceptional employer that fosters a flexible and inclusive work culture, allowing employees to thrive in a remote or hybrid environment. With a strong focus on employee growth, Reddit offers comprehensive benefits including a pension scheme, private medical and dental coverage, and generous vacation policies, ensuring that team members are well-supported both personally and professionally. Joining Reddit means being part of a dynamic team dedicated to innovation in machine learning, where your contributions directly impact the future of online communities.
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Contact Detail:

Reddit, Inc. Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Machine Learning Engineer, Ads Training Platform Remote - United Kingdom

✨Tip Number 1

Familiarise yourself with the Ray platform, as it's a key part of the role. Consider contributing to open-source projects or building your own small-scale applications using Ray to demonstrate your hands-on experience.

✨Tip Number 2

Network with professionals in the machine learning and distributed systems space. Join relevant online communities or attend meetups to connect with others who might have insights into the hiring process at Reddit.

✨Tip Number 3

Prepare to discuss your experience with debugging and profiling distributed jobs. Be ready to share specific examples of challenges you've faced and how you overcame them, as this will showcase your problem-solving skills.

✨Tip Number 4

Research Reddit's Ads ML models and their impact on ad targeting and conversion prediction. Understanding their current challenges and goals can help you tailor your discussions during interviews and show your genuine interest in the role.

We think you need these skills to ace Senior Machine Learning Engineer, Ads Training Platform Remote - United Kingdom

Infrastructure Engineering
Distributed Systems Design
Ray Platform Expertise
Large-Scale Data Processing
Debugging and Profiling Distributed Jobs
Deep Learning Frameworks (PyTorch, TensorFlow)
Task Scheduling
Fault Tolerance
State Management
Performance Tuning
Collaboration with ML Engineers
Data Access Pattern Improvement
Model Optimization for Distributed Training
Scalability Solutions

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights relevant experience in infrastructure and distributed systems, particularly with the Ray platform. Use specific examples that demonstrate your skills in building and maintaining large-scale systems.

Craft a Compelling Cover Letter: In your cover letter, express your passion for machine learning and how your background aligns with Reddit's mission. Mention any experience you have with ad targeting or conversion prediction to show your understanding of the role.

Showcase Technical Skills: Clearly outline your technical skills related to distributed computing principles, debugging, and profiling distributed jobs. If you have experience with deep learning frameworks like PyTorch or TensorFlow, make sure to include that as well.

Follow Application Instructions: Ensure you complete all required fields in the application form on our website. Double-check that your documents are in the accepted formats (pdf, doc, docx, txt, rtf) before submitting your application.

How to prepare for a job interview at Reddit, Inc.

✨Showcase Your Technical Expertise

Be prepared to discuss your experience with distributed systems and the Ray platform in detail. Highlight specific projects where you've designed or maintained large-scale infrastructure, as this will demonstrate your capability to handle the responsibilities of the role.

✨Understand the Ads ML Landscape

Familiarise yourself with Reddit's Ads machine learning models and how they operate. Being able to discuss how your work can improve ad targeting and conversion prediction will show that you understand the business context and are ready to contribute.

✨Prepare for Problem-Solving Questions

Expect technical questions that assess your problem-solving skills, especially around debugging and profiling distributed jobs. Practice explaining your thought process clearly, as this will help interviewers gauge your analytical abilities.

✨Emphasise Collaboration Skills

Since the role involves working closely with ML engineers, be ready to discuss your experience in collaborative environments. Share examples of how you've successfully worked in teams to enhance model training efficiency and performance.

Senior Machine Learning Engineer, Ads Training Platform Remote - United Kingdom
Reddit, Inc.
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  • Senior Machine Learning Engineer, Ads Training Platform Remote - United Kingdom

    Full-Time
    43200 - 72000 ÂŁ / year (est.)

    Application deadline: 2027-09-17

  • R

    Reddit, Inc.

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