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- Tasks: Develop and deploy machine learning models to enhance ad conversions on Reddit.
- Company: Join Reddit, a vibrant community platform with millions of active users and diverse interests.
- Benefits: Enjoy flexible vacation, private medical care, and development funds to support your growth.
- Why this job: Be part of a team shaping the future of advertising through innovative ML solutions.
- Qualifications: 3+ years in machine learning with experience in TensorFlow or PyTorch; deep learning is a plus.
- Other info: Work in a collaborative environment that values inclusivity and creativity.
The predicted salary is between 36000 - 60000 £ per year.
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Machine Learning Engineer – Ads Conversion Modeling, London
Client: reddit
Location: London, United Kingdom
Job Category: Other
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EU work permit required: Yes
Job Reference: fc21dcf72dc2
Job Views: 23
Posted: 12.08.2025
Expiry Date: 26.09.2025
Job Description:
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 ,+ active communities and approximately M+ daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit .
As a company, Reddit primarily generates revenue through advertising, and we\’re working towards building a massive business to fund our mission. We distinguish ourselves from other digital ad platforms by attracting advertisers who want to connect with a specific target audience because of our passionate and engaged communities.
The Ads Conversions Modeling Team is entrusted with the development and maintenance of a diverse set of Machine Learning models that are responsible for predictions regarding user conversions after engaging with Reddit. The creation and enhancement of these models plays a crucial role in our organization\’s efforts to optimize advertising effectiveness and drive business growth. We are looking for a motivated engineer that will help us advance our vision. As a diverse group of software engineers, product managers, data scientists, and ads experts, we are excited for you to join our team!
As a machine learning engineer in the Ads Conversion Modeling Team, you will research, formulate, and execute projects, and actively participate in the end-to-end implementation process. You will collaborate with cross-functional teams to ensure successful product delivery. You will also be able to contribute your expertise and shape the future of ads ML at Reddit!
Your Responsibilities :
- Building industrial-level models for critical ML tasks with advanced modeling architectures and techniques
- Research, implement, test, and launch new model architectures including deep neural networks with advanced pooling and feature interaction architectures
- Systematic feature engineering works to convert all kinds of raw data in Reddit (dense & sparse, behavior & content, etc) into features with various FE technologies such as aggregation, embedding, sub-models, etc.
- Contribute meaningfully to team strategy. We give everyone a seat at the table and encourage active participation in planning for the future
Who You Might Be:
- Tracking records of consistently driving KPI wins through systematic works around model architecture and feature engineering
- + years of experience with industry-level Machine Learning models
- + years of experience with mainstream ML frameworks (such as Tensorflow and Pytorch)
- + years of end-to-end experience of training, evaluating, testing, and deploying industry-level models
- Deep learning experience is a strong plus
- Experience in orchestrating complicated data generation pipelines on large-scale dataset is a plus
- Experience with Ads domain is a plus
- Experience with Recommendation Systems is a plus
Benefits:
- Pension Scheme
- Private Medical and Dental Scheme
- Life Assurance, Income Protection
- Workspace benefit for your home office
- Personal & Professional development funds
- Family Planning Support
- Commuter Benefits
- Flexible Vacation & Reddit Global Days Off
Join us at Reddit, and help us build a community that is inclusive and empowering for everyone.
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Machine Learning Engineer - Ads Conversion Modeling employer: Reddit
Contact Detail:
Reddit Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Machine Learning Engineer - Ads Conversion Modeling
✨Tip Number 1
Familiarise yourself with Reddit's advertising model and how machine learning plays a role in it. Understanding their specific needs and challenges will help you tailor your discussions during interviews.
✨Tip Number 2
Engage with the Reddit community to gain insights into user behaviour and preferences. This knowledge can be invaluable when discussing feature engineering and model improvements.
✨Tip Number 3
Showcase your experience with TensorFlow and PyTorch by working on relevant projects or contributing to open-source initiatives. Having a portfolio that demonstrates your skills can set you apart from other candidates.
✨Tip Number 4
Network with current or former Reddit employees on platforms like LinkedIn. They can provide insider tips about the company culture and the specifics of the role, which can be beneficial during your application process.
We think you need these skills to ace Machine Learning Engineer - Ads Conversion Modeling
Some tips for your application 🫡
Understand the Role: Take time to thoroughly read the job description for the Machine Learning Engineer position at Reddit. Understand the key responsibilities and required skills, especially focusing on machine learning models and feature engineering.
Tailor Your CV: Customise your CV to highlight relevant experience in machine learning, particularly with frameworks like TensorFlow and PyTorch. Include specific projects where you've improved KPIs through model architecture and feature engineering.
Craft a Compelling Cover Letter: Write a cover letter that showcases your passion for machine learning and how your background aligns with Reddit's mission. Mention any experience you have with large-scale data pipelines or the Ads domain, as these are valuable for the role.
Proofread and Submit: Before submitting your application, proofread all documents for clarity and correctness. Ensure that your CV and cover letter are free from errors and that they effectively communicate your qualifications. Then, submit your application through our website.
How to prepare for a job interview at Reddit
✨Showcase Your Technical Skills
Be prepared to discuss your experience with machine learning frameworks like TensorFlow and PyTorch. Bring examples of past projects where you successfully implemented models, especially those that improved KPIs.
✨Understand the Company Culture
Reddit values community and authentic conversations. Familiarise yourself with their platform and be ready to discuss how your work can contribute to their mission of connecting advertisers with passionate communities.
✨Prepare for Problem-Solving Questions
Expect technical questions that assess your problem-solving skills. Practice explaining your thought process when tackling complex machine learning challenges, particularly in ads conversion modelling.
✨Highlight Collaboration Experience
Since the role involves working across teams, share examples of how you've successfully collaborated with others in previous roles. Emphasise your ability to contribute to team strategy and planning.
