Source Job

$165,789–$205,915/yr
North America

  • Own high-impact ranking models powering personalized feeds and digest emails.
  • Work across the full ML lifecycle, from data pipelines to production deployment.
  • Collaborate with a distributed engineering team on modern recommendation techniques.

Python C++ Machine Learning Recommendation Systems

20 jobs similar to Senior Machine Learning Engineer, Ranking

Jobs ranked by similarity.

$189,507–$274,604/yr
Global

  • Improve existing machine learning ranking models using core coding skills and ML knowledge.
  • Take end-to-end ownership of machine learning systems from data pipelines to production integration.
  • Identify new opportunities to apply machine learning to different parts of the Quora product.

Quora is a global knowledge sharing platform and Poe, a cloud workspace for AI agents. It is a privately held, remote-first company with a culture rooted in transparency, idea-sharing, and experimentation.

US

  • Develop advanced ML models and agentic workflows to accelerate model development.
  • Use AI-assisted tools like Claude and Cursor to investigate model behavior and automate analysis.
  • Set technical direction, mentor engineers, and raise the bar for modeling rigor.

Reddit is a community of communities, built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information.

United States

  • Design and train advanced ML models (e.g., DNNs, transformers) to power Reddit Ads Ranking.
  • Develop and optimize features including embeddings, contextual signals, and cross-session behavior.
  • Mentor other MLEs and contribute to modeling best practices across the organization.

Reddit is a community of communities built on shared interests, passion, and trust. With over 100,000 active communities and approximately 130 million daily active unique visitors, it is one of the internet's largest sources of information and employs a flexible first workforce.

$180,000–$270,000/yr
US

  • Build and operate production ML systems for recommendations, ranking, and personalized action selection across Stripe's Growth Platform.
  • Improve contextual bandit and policy-learning approaches, including exploration, reward design, and adaptive user feedback.
  • Develop reliable data and feature pipelines, reusable tooling, and online experiments to drive measurable business outcomes.

Stripe is a financial infrastructure platform for businesses of all sizes, enabling payments and revenue growth. With millions of companies as customers, Stripe fosters a culture of passion, grit, and integrity while working to increase the GDP of the internet.

Global Unlimited PTO

  • Design, build, and maintain scalable real-time ML services for ranking and personalization.
  • Analyze user behavior and run A/B tests to improve product discovery and engagement.
  • Collaborate with engineers, data specialists, and business stakeholders to drive measurable outcomes.

The company is an AI-driven e-commerce platform that uses machine learning to power smarter search, discovery, and shopping experiences. It maintains a collaborative, remote-first culture that values ownership, inclusion, and meaningful impact.

$246,916–$332,012/yr
US

  • Build cutting-edge deep learning and machine learning models to personalize the Pinterest experience.
  • Partner with cross-functional teams to improve ML models for products like Homefeed, Ads, and Search.
  • Use data-driven methods to enhance candidate retrieval and stay current with trends in recommendation systems.

Pinterest is a visual discovery platform where millions find inspiration to create a life they love. It is a large, publicly traded technology company with a culture of innovation, inclusion, and flexibility.

North America

  • Design and build systems that improve the efficiency of ML training and inference workloads.
  • Develop tooling and benchmarking frameworks to help ML engineers debug, profile, optimize, and monitor model performance.
  • Partner with ML teams to optimize distributed training, reduce costs, and drive technical strategy for scalability and reliability.

Reddit is a community of communities where users share interests and authentic conversations. With 100,000+ communities and ~130 million daily visitors, it has a flexible-first culture supporting remote work.

$250,000–$250,000/yr
US

  • Lead technical design and architecture for Medium's ML recommendation backend.
  • Build and scale feature store, recommender systems, and ML Ops.
  • Mentor engineers and drive cross-functional technical direction.

Medium is an online publishing platform that connects millions of readers with ideas and stories. The company values engineering excellence, collaboration, and a culture of mentorship and continuous improvement.

$175,000–$218,000/yr
US

  • Lead hands-on data science to turn revenue opportunities into production ML systems.
  • Apply causal inference, experimentation, and advanced analytics to guide product decisions.
  • Mentor data scientists and set technical best practices in a collaborative, remote-first environment.

This company builds consumer technology products serving over 100 million monthly active users, focusing on revenue growth through personalization, experimentation, and subscriptions. It operates with a remote-first, AI-native culture that values direct communication, integrity, and high-impact execution.

$230,000–$322,000/yr
US

  • Define technical direction and multi-year roadmap for ads retrieval modeling.
  • Design, develop, and launch candidate-generation and retrieval models for campaigns and ads.
  • Apply modern approaches like two-tower architectures, representation learning, and deep learning techniques.

Reddit is a community of communities, built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information.

$97,600–$139,000/yr
United States Canada

  • Build and maintain core infrastructure for Quora's ML platform, ensuring high availability, scalability, and performance.
  • Build and improve distributed systems serving ML models in production, from Large Recommendation Models to Large Language Models.
  • Work on GPU model serving, optimizing latency, throughput, and cost to support larger and more capable models.

Quora's mission is to grow the world's collective intelligence through two platforms: Quora for global knowledge sharing and Poe for AI agent collaboration. We are a remote-first company with passionate, collaborative, and high-performing global teams, rooted in transparency and experimentation.

$171,063–$269,075/yr
US

  • Drive development and implementation of advanced machine-learning algorithms for business-critical applications.
  • Build scalable forecasting models, including deep-learning-based approaches, to predict company top-line metrics.
  • Lead the end-to-end ML lifecycle from problem definition through deployment and iteration.

Atlassian builds software products that help teams all over the planet collaborate and work together. With a distributed-first culture, Atlassians have flexibility in where they work, and the company is motivated by unleashing the potential of every team.

$215,250–$285,982/yr
US

  • Build cutting-edge personalization technology using deep learning and machine learning.
  • Partner across teams to improve ML models for Homefeed, Ads, Growth, Shopping, and Search.
  • Use data-driven methods and LLMs to enhance content understanding and candidate retrieval.

Pinterest is a visual discovery platform where millions of people find creative ideas and plan for memories. Its culture emphasizes inclusion, flexibility, and innovation, and it values bringing everyone the inspiration to create a life they love.

$175,000–$218,000/yr
North America Unlimited PTO

  • Lead deep investigations into revenue opportunities and production ML systems for personalization, experimentation, and automation.
  • Partner with Product, Engineering, and Data teams to integrate ML features and ensure their performance is measured.
  • Mentor data scientists and drive best practices for advanced analytics and ML development.

Life360 is a mobile app and device company helping families protect loved ones, pets, and valuables via location sharing and safety features. With over 102 million users and 500+ remote-first employees, its culture is mission-driven and AI-native.

Global Unlimited PTO

  • Define the technical roadmap for Growth and Engagement ML systems, ensuring scalability and business impact.
  • Architect and deploy production-grade ML pipelines and real-time decisioning systems for personalization and onboarding.
  • Mentor senior engineers and collaborate with Product, Data Science, and Marketing leadership to drive core metrics.

Phantom is on a mission to connect the world to the freedom of open markets, providing access to global markets that never close. With around 180 fully remote employees and backed by a $150M Series C investment from a16z, Sequoia Capital, and Paradigm, we foster a culture of innovation and inclusivity.

Global Unlimited PTO

  • Build and operate real search infrastructure for ranking and multi-modal search across Nivoda's marketplace.
  • Own the full lifecycle of ranking and recommendation models, from features and training through deployment and monitoring.
  • Build context-aware and conversational search using LLMs, embedding-based retrieval, and image embeddings.

Nivoda is the operating system for the global jewellery industry, connecting diamond and gemstone suppliers directly with retailers across more than 70 countries. We're a small, high-ownership team with a remote-first culture, powering over $300M in annual transactions.

India

  • Build new functionality within a fast-moving product, taking ambiguous ideas from design to rigorous experimentation within weeks.
  • Conduct deep-dive research into state-of-the-art LLM orchestration, retrieval strategies, and data-driven personalization.
  • Build production-grade ML systems at Twilio scale, leveraging the latest AI development stacks to focus on core differentiation.

Twilio is a cloud communications platform that enables businesses to create personalized customer experiences through APIs and AI-driven solutions. The company is remote-first, serving hundreds of thousands of businesses, and fosters a culture of connection, inclusion, and innovation.

North America Unlimited PTO

  • Lead exploration and application of Large Language Models and Generative AI into core product lines.
  • Translate the latest research into high-performing systems that enhance customer experiences.
  • Collaborate with cross-functional teams to set strategy and deploy ML solutions with real business impact.

Replicant is the industry leader in voice AI for customer service, providing automated phone bots for enterprises like AAA and Fanatics. Founded in 2017, the company is backed by top-tier Silicon Valley investors, has offices in the SF Bay Area, Toronto, and New York, and maintains a distributed team across the US and Canada.

$230,000–$400,000/yr
Global

  • Lead the team in roadmapping and executing machine learning features and products.
  • Improve team pace through technical expertise and pragmatic tradeoffs.
  • Drive recruiting, reliability, and growth of team members.

Hightouch helps companies sync data into their SaaS systems to automate and improve operations. They are a remote-first company with hundreds of customers and a culture focused on engineering excellence.

$143,659–$179,574/yr
North America 5w PTO

  • Lead end-to-end program management for large-scale ML and personalisation initiatives, uniting engineering, data science, product, and design.
  • Drive delivery of recommendation systems and personalization models, owning roadmaps, milestones, dependencies, and risk plans.
  • Orchestrate ML development workflows from training pipelines to production deployment, and keep leadership informed with clear metrics and reporting.

Spotify is a global audio streaming service that helps millions of listeners discover music, podcasts, and audiobooks through personalized recommendations. The company is a large, inclusive workplace that values diverse perspectives and offers flexible work arrangements.