Staff Machine Learning Engineer, Ads Measurement

Reddit, Inc.; Ontario; Hybrid; CAD 120,000 - 160,000; Full time

Job summary

Reddit, Inc. is seeking a Staff Machine Learning Engineer to lead initiatives in Ads Measurement. The role involves driving architectural decisions, mentoring peers, and tackling complex challenges in a collaborative environment. Ideal candidates will have extensive experience in ML systems and a passion for building scalable solutions.

Benefits

Dynamic work environment

Opportunities for professional growth

Competitive salary and benefits

Flexible work arrangements

Comprehensive Healthcare Benefits

401k Match

Family Planning Support

Mental Health & Coaching Benefits

Flexible Vacation

Paid Volunteer time off

Qualifications

• 8+ years of professional software engineering experience, with 3+ years in ML-driven systems.
• Experience in identity resolution and device graphs using probabilistic techniques.
• Proficiency in ML frameworks and large-scale data processing.

Responsibilities

• Lead technical strategy for identity resolution system ensuring accuracy and compliance.
• Oversee end-to-end ML workflows from data ingestion to deployment.
• Establish engineering best practices and mentor junior engineers.

Skills

Probabilistic modeling

User matching

Machine learning frameworks

Large-scale data processing

Technical leadership

Communication skills

Tools

TensorFlow

PyTorch

Spark

Kafka

Beam

Flink

Job description

Staff Machine Learning Engineer, Ads Measurement

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 .

The Ads Measurement Org is dedicated to enhancing the efficiency and intelligence of Reddit’s advertising platform. We specialize in privacy-enhancing technologies, probabilistic user matching, and modeled conversions to enable measurement and delivery in a privacy-conscious world.

We’re looking for a hands-on Staff Machine Learning Engineer with deep expertise in probabilistic modeling and user matching who can lead end-to-end Ads initiatives across engineering and cross-functional teams. You will drive architectural decisions, mentor your peers, and dive into complex technical challenges directly when needed. Our diverse group of engineers, product managers, data scientists, and ads specialists is excited to welcome you on board!

Minimum Qualifications:

• 8+ years of professional software engineering experience, with at least 3+ years focused on ML-driven systems at scale
• Demonstrated experience architecting and building identity resolution, device graphs, or similar identity matching solutions leveraging probabilistic techniques
• Proficiency in machine learning frameworks (e.g., TensorFlow, PyTorch) and libraries for feature engineering, model training, and inference
• Solid understanding of large-scale data processing, distributed computing, and data infrastructure (e.g., Spark, Kafka, Beam, Flink)
• Proven technical leadership in cross-functional settings, driving architectural decisions and influencing stakeholders (product, data science, privacy, legal)
• Excellent communication, mentoring, and collaboration skills to align teams on a long-term vision for identity resolution

Responsibilities:

• Lead the technical strategy and architecture for our company’s identity resolution system, ensuring accuracy, scalability, and compliance with privacy requirements
• Oversee end-to-end ML workflows—from data ingestion and feature engineering to model training, evaluation, and deployment—optimizing for performance and cost
• Partner with cross-functional teams (e.g., product management, data science, platform engineering, privacy, legal) to define the roadmap and set long-term goals
• Establish engineering best practices, code quality standards, and data governance guidelines to ensure maintainability and trustworthiness of the identity resolution system
• Mentor and coach junior engineers, fostering a culture of innovation, technical excellence, and knowledge sharing across the organization

If you're a talented software engineer looking for a new challenge, and you're passionate about building scalable, reliable products, we encourage you to apply for this exciting opportunity!

What We Offer:

• A dynamic, supportive work environment with a diverse team of engineers and cross-functional partners
• Opportunities for professional growth and development, with a focus on continuous learning and skill-building
• A competitive salary and benefits package, with a focus on work-life balance and employee well-being
• Flexible work arrangements, including remote work options, to support your individual needs and preferences
• The chance to work on high-impact projects that drive real results for our users and advertisers
• Comprehensive Healthcare Benefits and Income Replacement Programs
• 401k Match
• Family Planning Support
• Mental Health & Coaching Benefits
• Flexible Vacation & Reddit Global Days Off
• Paid Volunteer time off

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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