[Quora is a privately held, "remote-first" company. This position can be performed remotely from multiple countries around the world. Please visit careers.quora.com/eligible-countries for details regarding employment eligibility by country.]About Quora:Quora’s mission is to grow the world's collective intelligence. To do so, we have two platforms:Quora: a global knowledge sharing platform with over 300M monthly unique visitors, bringing people together to share insights on various topics and providing a unique platform to learn and connect with others.Poe: a platform providing millions of global users with one place to chat, explore and build with a wide variety of AI language models (bots), including GPT-5.2, Claude Opus 4.5, Grok 4.1, Veo 3.1, Nano Banana Pro (Gemini 3 Pro Image), and more. As AI capabilities rapidly advance, Poe provides a single platform to instantly integrate and utilize these new models.Behind these products are passionate, collaborative, and high-performing global teams. We have a culture rooted in transparency, idea-sharing, and experimentation that allows us to celebrate success and grow together through meaningful work. Join us on this journey to create a positive impact and make a significant change in the world.This role will be working on our Quora product.About the Team and Role:Our small engineering team works on challenging problems every day. We have a culture that's rooted in constantly learning and improving, and our engineers are encouraged to think big and experiment with new ideas. Using continuous deployment, we quickly see our changes in the product and make fast iterations. Our engineers focus on creating polished products and writing high quality code by designing APIs and abstractions that are extensible and maintainable. Everyone on the engineering team has a huge impact on our product and our company.As a member on the Ads ML team, you'll build deep learning and transformer based model architectures for ad candidate retrieval and ranking within our advertising platform. Your work will involve developing sophisticated bidding algorithms, and creating scalable ML systems that optimize ad selection. You'll also leverage large language models for brand safety detection and ad quality assessment, ensuring advertisers maintain brand integrity while users experience ads that meet the same quality standards as our core content.Responsibilities:Improve our existing Ads Recommendation systems using your expertiseIdentify new opportunities to apply Machine Learning to different parts of the Quora Ads ProductWork with other engineers to implement algorithms and systems in an efficient wayTake end-to-end ownership of Machine Learning systems -- from data pipelines and training, to realtime prediction engineMinimum Requirements:Ability to be available for meetings and impromptu communication during Quora's “coordination hours" (Mon-Fri: 9am-3pm Pacific Time)A 2025 or Summer 2026 graduate with or pursuing a B.S., M.S., or Ph.D. in Computer Science, Engineering or a related technical fieldStrong understanding of mathematical foundations of Machine Learning algorithmsKnowledge of Python or C++, or the ability to learn them quicklyA passion for learning and always improving yourself and the team around youPreferred Requirements:Previous software engineering experience via an internship, work experience or coding competitionPassion for Quora's mission and goalsAt Quora, we value diversity and inclusivity and welcome individuals from all backgrounds, including marginalized or underrepresented groups in tech, to apply for our job openings. We encourage all candidates who share a passion for growing the world’s knowledge, even those who may not strictly meet all the preferred requirements, to apply, as we know that a diverse range of perspectives can have a significant impact on our products and our culture.Additional Information:We are accepting applications on an ongoing basis. This role is a backfill for an existing vacancy.Quora offers a wide range of benefits including medical/dental/vision coverage, equity refreshers, remote work reimbursement, paid time off, employee assistance programs, and more. Benefits are country-specific and may vary.There are many factors that will determine the starting pay, including but not limited to experience, location, education, and business needs.US candidates only: For US based applicants, the salary range is $107,360 - $152,900 USD + equity + benefits.Canada candidates only: For Toronto and Vancouver based applicants, the salary range is $140,796 - $160,415 CAD + equity + benefits. For all other locations in Canada, the salary range is $131,409 - $149,720 CAD + equity + benefits.We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.AI technology may assist in sorting applications and recording interview notes, but all decisions are made by a member of our team.To ensure a secure hiring process, all final candidates will undergo identity verification and a comprehensive background check prior to onboarding.Job Applicant Privacy Notice: https://www.careers.quora.com/pages/quora-global-job-applicant-privacy-notice#LI-RJ1#LI-REMOTE