Senior Data Scientist, Algorithm (Risk & Fraud)

Company: Airbnb, Inc. Role: Senior Data Scientist - Identity and Algorithms Location: United States About Airbnb Since 2007, Airbnb has connected millions of hosts and guests worldwide. With over 5 million hosts and more than 2 billion guest arrivals across nearly every country, Airbnb offers distinctive stays and experiences that help build authentic connections in communities. Building Trust at Scale Trust forms the foundation of Airbnb’s community. The Identity Data Science team works to ensure every user is authentic, supporting Airbnb’s mission to create the most trusted travel platform. This team partners closely with product, engineering, and operations to advance identity verification systems and strengthen defenses against new threats. “Our real innovation is not allowing people to book a home; it’s designing a framework to allow millions of people to trust one another. Trust is the real energy source that drives Airbnb…” - Brian Chesky, Co-Founder & CEO (2019) What You Will Do This senior data science role focuses on improving the safety and well-being of Airbnb’s users through algorithmic and data-driven solutions. The position calls for a "full-stack" data scientist with a broad methodological skillset, ready to lead high-impact projects such as: Raising identity verification standards using biometrics, NFC technology, and integrations with Apple and Google services. Building advanced statistical models to detect identity fraud, including computer vision models for altered images and large language models (LLMs) to evaluate suspicious account features. Automating and improving human-in-the-loop machine learning processes to classify fraud cases and generate training labels. Deploying real-time anomaly detection systems to quickly spot emerging threats across regions and platforms. Designing intelligent sampling strategies to estimate rare event rates and track critical metrics.

Founded in 2007, Airbnb began with the vision of connecting people through unique stays and experiences. Today, we boast over 5 million hosts worldwide who have welcomed more than 2 billion guests. Our mission is to foster authentic connections between travelers and local communities.Join Our Community:As part of a dynamic team of data scientists, analysts, engineers, product managers, and designers, you will focus on enhancing pricing products for our hosts. You will collaborate closely with fellow data scientists within the Guest & Host Data Science organization to create models and tools that elevate the Airbnb marketplace for both guests and hosts.Your Impact:Your work will be pivotal in developing a pricing guidance system aimed at assisting hosts, as well as establishing methods to evaluate the impact of pricing feature launches. Key responsibilities include (1) partnering with product teams to refine pricing strategies for hosts, (2) creating foundational models for pricing recommendations that align with market demand, and (3) effectively communicating insights through data narratives that aid cross-functional decision-making for future pricing innovations.A Day in Your Role:Fostering strong relationships with cross-functional partners in Product, Engineering, and Analytics.Utilizing programming skills (Python, SQL, R) to model, simulate, and assess the impact of new pricing features.Analyzing data creatively to discern the varying effects of pricing feature launches and translating findings into actionable insights.Communicating discoveries and insights to leadership and partners in a clear, concise manner.

About AirwallexAirwallex stands as the premier unified payments and financial platform for global enterprises. With our cutting-edge combination of proprietary infrastructure and innovative software, we empower over 200,000 businesses worldwide—including industry leaders like Brex, Rippling, Navan, Qantas, SHEIN, and many others—to manage everything from business accounts and payments to spend management and treasury solutions, all while facilitating embedded finance on a global scale.Founded in Melbourne, we are proud to have a dynamic team of over 2,000 talented and innovative professionals in technology, spread across 26 offices globally. With a valuation of $8 billion and support from top-tier investors such as T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, Airwallex is at the forefront of constructing the future of global payments and financial services. If you are prepared to embark on the most ambitious journey of your career, we invite you to join us.

Join Airwallex as a Staff Data ScientistAt Airwallex, we are revolutionizing the way global businesses manage their payments and finances. Our innovative platform empowers over 200,000 businesses worldwide, including esteemed names like Brex, Rippling, Navan, Qantas, and SHEIN, offering fully integrated solutions for business accounts, payments, spend management, treasury, and embedded finance.Founded in Melbourne, our talented team of over 2,000 professionals operates across 26 offices globally. With a valuation of US$8 billion and backing from top-tier investors like T. Rowe Price, Visa, and Mastercard, we are at the forefront of creating the financial platform of the future. If you're ready to embark on an extraordinary journey in your career, we invite you to join us.

Founded in 2007, Airbnb has transformed the travel landscape, growing from a humble start with three guests to a vibrant community of over 5 million hosts welcoming more than 2 billion guests worldwide. Every day, our hosts offer distinct stays and experiences, fostering authentic connections between travelers and local communities.Join Our Collaborative Team:You will be part of a dynamic group of data scientists, analysts, engineers, product managers, and designers dedicated to developing innovative pricing solutions for Airbnb hosts. Your primary team will include data scientists within the Guest & Host Data Science organization, who create models, essential tools, and insights to enhance the Airbnb marketplace for both guests and hosts. Your Impactful Contributions:Play a crucial role in shaping a pricing guidance system for our hosts and employ various methods (both experimental and observational) to evaluate the effectiveness of pricing feature launches. You will spearhead innovative pricing science initiatives, including pioneering 0-to-1 projects that require a blend of scientific rigor and creative business insights. Your most impactful work will involve:Working closely with product and cross-functional teams to develop and implement pricing strategies and guidance for hosts, translating sophisticated modeling into practical recommendations.Creating foundational models and experimental frameworks that balance marketplace supply and demand, using empirical methods to evaluate and enhance pricing feature impacts.Crafting engaging data narratives to reveal actionable insights, empower data-driven decision-making, and steer the future of Airbnb’s pricing ecosystem. A Day in Your Role:Gaining a comprehensive understanding of host perspectives on pricing and their interactions with our application through analysis and research.Building strong relationships with cross-functional partners in Product, Engineering, and Analytics.Coding in Python, SQL, and R to model, simulate, and measure the impact of new pricing features.Diving into data creatively to assess the varying effects of pricing feature launches, converting these insights into clear recommendations.Sharing findings and insights with leadership and partners in a straightforward and impactful manner.

At Lyft, we are driven by our mission to connect people and foster community. We strive to create an inclusive work environment where every team member feels valued and has the opportunity to excel.Lyft Ads, one of our most dynamic and rapidly expanding divisions, is dedicated to developing the world’s premier transportation media network. Our goal is to enable brands to engage with riders at pivotal moments throughout their journey—before, during, and after their rides—by delivering impactful, contextually relevant advertising experiences. We operate at the forefront of mobility data, real-time decision-making systems, and AI-driven personalization, empowering advertisers to execute high-impact campaigns with measurable success.We are currently in search of an Algorithms Scientist to spearhead the development of next-generation algorithms focused on ad relevance, targeting, optimization, and measurement that underpin the Lyft Ads platform. In this pivotal role, you will navigate large-scale datasets and intricate real-time systems to design, prototype, and deploy robust machine learning models. Your collaboration with cross-functional teams, including Engineering, Product, Data Science, and Sales, will be instrumental in translating complex business and advertiser needs into effective algorithmic solutions that enhance ad performance, optimize marketplace efficiency, and drive significant revenue growth.This is a high-impact, technically demanding position within a rapidly scaling business unit. The ideal candidate will possess a strong intuition for applied machine learning, extensive hands-on modeling experience, and the capability to write clean, efficient production code. You will play a crucial role in transforming how advertisers connect with Lyft riders, pushing the envelope on personalization, measurement, and real-time optimization in a fast-paced marketplace.

Join Airwallex as a Senior Data Scientist in Algorithms for Financial MarketsAt Airwallex, we are revolutionizing the financial landscape, providing a comprehensive payments and financial platform tailored for global businesses. Our innovative infrastructure and proprietary software empower over 200,000 businesses worldwide, including notable brands like Brex, Rippling, Navan, Qantas, and SHEIN. We offer fully integrated solutions that encompass business accounts, payments, spend management, treasury services, and embedded finance, all on a global scale.Founded in Melbourne, our talented team of over 2,000 innovative professionals operates across 26 offices worldwide. With a valuation of $8 billion and backing from industry-leading investors such as T. Rowe Price, Visa, Mastercard, and Sequoia, we are at the forefront of building the future of global payments. If you are eager to engage in groundbreaking work and make a significant impact, we invite you to join us.What We Look ForWe seek proactive builders with entrepreneurial spirit who are passionate about contributing to our mission and embody our operating principles. You should possess strong expertise relevant to your role, exhibit sharp analytical thinking, and be driven by curiosity. We value individuals who make informed decisions based on core principles, balancing speed with thoroughness.Collaboration and humility are key traits we admire. You should be capable of transforming innovative ideas into tangible products and possess a strong execution mindset. Leveraging AI to enhance efficiency and solve problems swiftly is essential. Here, you will confront complex, high-visibility challenges alongside exceptional colleagues, advancing your career as we shape the future of banking.About Our TeamOur global team extends across Australia, China, the USA, and Singapore, innovating in applied data science, data engineering, and platform solutions to support Airwallex's rapid growth. You will work closely with a diverse array of cross-functional partners, including Product, Engineering, Marketing, Sales, and Finance, to address intricate data challenges and influence the evolution of fintech.Discover more about our data science team in this blog.

Airbnb connects millions of hosts and guests worldwide, offering unique stays and experiences that help build genuine connections. Since 2007, the company has changed how people travel and interact with new places. Role overview This Senior Software Engineer position focuses on backend development for Airbnb’s core GraphQL platform, Viaduct. Viaduct acts as the main data access layer, handling over 70% of Airbnb’s API traffic. The team maintains a global schema and query system, aiming to simplify APIs and boost performance for app developers across the company. What you will do Work on Viaduct Modern, the next phase of Airbnb’s GraphQL platform, which has been running in production for more than six years. Enhance the developer experience for hundreds of engineers at Airbnb by improving platform capabilities and performance. Contribute to an open source project, extending your impact beyond Airbnb to the broader engineering community. Collaborate closely with infrastructure teams to deliver a reliable, effective development environment. Participate in coding, troubleshooting, and daily problem-solving to keep the platform innovative and dependable. How the team works The team sets industry best practices and explores new architectural approaches. Platform Engineering principles guide the work, treating the platform as a product and focusing on developer needs.

Join the dynamic Analytics team at DoorDash as a Data Scientist or Senior Data Scientist, where your expertise will directly influence strategic decisions and operational improvements. You will uncover valuable insights from vast datasets, transforming them into actionable recommendations that drive company-wide initiatives. Collaborate with diverse teams in areas like Consumer & Growth, Business Operations, and Customer Experience to elevate our analytics capabilities and impact our business in meaningful ways.

Role Overview Airbnb is hiring a Senior Programs & Business Operations Lead based in the United States. This position focuses on shaping operational strategies and leading initiatives that improve efficiency across the company. The role is central to aligning business operations with Airbnb's mission of helping anyone feel they can belong anywhere. What You Will Do Lead cross-functional projects that strengthen global operations Develop and implement strategies to improve efficiency Collaborate with teams across the organization to support key business goals Team & Impact This role joins a collaborative team focused on driving projects that make a tangible impact on Airbnb’s worldwide operations.

Founded in 2007, Airbnb began with two hosts welcoming three guests into their San Francisco home and has since evolved into a thriving community of over 5 million hosts who have welcomed more than 2 billion guests across nearly every country worldwide. Our platform enables hosts to provide unique stays and experiences that foster authentic connections within communities.The Community You Will Join: As part of the Payment Risk Operations team, you will play a crucial role in safeguarding trust within our global marketplace. Our mission is simple yet impactful: to protect our community while preserving the magic of travel. We are dedicated to enhancing user satisfaction by developing thoughtful policies, intelligent rules, and innovative systems that improve the quality of every interaction on our platform.Your Contributions Will Include: As a Senior Risk Functional Specialist, you will oversee operational procedures and escalations related to stored value payment products (such as gift cards) and analyze performance metrics based on business and vendor feedback. Collaborating closely with operational stakeholders and cross-functional partners, you will drive changes to enhance our products and processes. Your decision-making skills will be instrumental in resolving a variety of complex challenges, and you will embody Airbnb's core values in all aspects of your work.Your impact will encompass:Transaction security across all Airbnb products and servicesRisk policy support to foster trust in our platformUser verification and onboarding experiences that harmonize security with seamless user journeysFraud detection systems that adapt to emerging threatsOperational excellence that enhances our customer interactions and experiences

Airbnb started in 2007 when two hosts welcomed three guests into their San Francisco home. Since then, the platform has grown to over 5 million hosts and more than 2 billion guests worldwide. Hosts offer unique stays and experiences that connect travelers with local communities. Trust Engineering at Airbnb Trust sits at the heart of Airbnb’s platform. The Trust Engineering team builds technology to keep the community safe and uphold high standards for hosts, guests, homes, and experiences. Their work addresses both online risks, such as account compromise, fake listings, and financial loss, and offline concerns like theft, property damage, and personal safety. The team’s responsibilities include user onboarding, screening, identity, and reputation systems. Trust Engineering leads the technical vision for these systems and integrates them throughout Airbnb’s platform. Role overview The Senior Staff Software Engineer, Trust, is a senior individual contributor role. This engineer partners with technical leaders across Airbnb to shape, plan, and deliver a broad roadmap of Trust engineering projects. The position involves extensive collaboration with teams throughout the company. While highly senior, this is still a hands-on engineering role, every Airbnb software engineer, regardless of level, contributes code and development work. What you will do Define and drive the long-term vision and strategy for the Trust Platform, setting architectural direction for core systems that support scalable, high-quality fraud detection, safety, and trust decisions across Airbnb. Work deeply within Trust Platform components, developing system and performance tools, and identifying ways to improve technical quality, operational excellence, and developer experience. Promote an AI-first engineering approach, using LLM-powered agents to generate and refine code, so you can focus on problem-solving, system design, and quality oversight. Location This position is remote and based in the United States.

At Descript, we are on a mission to revolutionize the way audio and video content is created. Our innovative platform has earned the trust of renowned podcasters, influencers, and prestigious organizations like BBC, ESPN, HubSpot, Shopify, and The Washington Post. With $100M in funding from top investors, including the OpenAI Startup Fund, Andreessen Horowitz, Redpoint Ventures, and Spark Capital, we are poised for tremendous growth. We are seeking a proactive and analytical Senior Marketing Data Scientist to join our dynamic Growth team. In this role, you will collaborate with the Performance Marketing team to design and implement a comprehensive measurement framework, optimize marketing performance across the entire funnel, and drive data-informed business strategies. This crucial position will enable Descript to enhance its marketing capabilities across both B2C and B2B sectors. You will leverage AI-driven analytics tools to streamline decision-making processes and deliver scalable predictive insights. This position can be performed remotely within the United States or onsite in the San Francisco Bay Area.

Airbnb, founded in 2007, connects hosts and guests in more than 190 countries. With a network of over 5 million hosts, the company offers unique stays and experiences that help guests build connections around the world. About the Role The Programs & Business Operations Lead joins the Chief Business Officer organization. This team shapes Airbnb’s growth strategy, expanding business offerings beyond traditional accommodations and maintaining a high-quality supply of stays and services that elevate the guest experience. What You Will Do Analyze supply and demand across multiple markets and customer segments, surfacing insights that influence business, financial, and customer outcomes. Turn complex data into clear, actionable strategies that support the growth of Airbnb's Services division. Design and implement new metrics and key performance indicators to better track business trends. Develop operational plans using data-driven approaches to optimize the performance of the Services business. Location This position is based in the United States.

Join our innovative team at Pinterest as a Senior Data Scientist in the Core division. We're looking for a data-driven professional who is passionate about leveraging data analytics and machine learning to enhance user experience and drive business outcomes. At Pinterest, you will collaborate with cross-functional teams to develop data models and insights that influence strategic decisions.

About Matter IntelligenceMatter Intelligence is at the forefront of Vision AI innovation, developing a groundbreaking sensor capable of interpreting molecular chemistry, temperature, and 3D shapes, all powered by an advanced Large World Model. This revolutionary system not only captures visual data but comprehensively understands the nuances behind each pixel. We call it Superintelligent Vision.Join a remarkable team with a proven track record, having delivered technologies to NASA/JPL for Mars missions, co-founding and building infrastructure for OpenAI, crafting state-of-the-art sensors for U.S. Defense, and developing pivotal algorithms for spectral and 3D imaging. Together, we are laying the groundwork for the next generation of vision and intelligence in our physical world.About the RoleWe are seeking a passionate Junior Geospatial Data Scientist to design and sustain processing pipelines and algorithms that convert our satellite's raw hyperspectral imagery into high-quality scientific data products. This role is not solely research-oriented; you will be responsible for writing production-level code that operates at scale, and a solid understanding of the mathematics and physics behind each pipeline component is essential.In collaboration with experienced remote sensing scientists and software engineers, you will execute radiometric corrections, atmospheric compensation, spectral analysis algorithms, and geospatial data transformations. If you have the ability to derive a reflectance equation on a whiteboard and seamlessly translate it into a clean, tested Python module, this opportunity is perfect for you.

Founded in 2007, Airbnb has transformed the way people experience travel, connecting over 5 million hosts with more than 2 billion guests worldwide. Our platform enables unique stays and authentic experiences, fostering connections with local communities.The Team You Will Join:As a pivotal member of the Data Warehouse Infrastructure team, you will help shape the backbone of Airbnb's big data capabilities, enabling hundreds of engineers to efficiently collect, manage, and analyze vast amounts of data. We leverage cutting-edge open-source technologies such as Hadoop, Spark, Trino, Iceberg, and Airflow.Typical Responsibilities:Design and architect Airbnb's next-generation big data compute platform to enhance data ETL, analytics, and machine learning efforts.Oversee the platform's operations, focusing on improving reliability, performance, observability, and cost-effectiveness.Create high-quality, maintainable, and self-documenting code while engaging actively in code review processes.Contribute to open-source projects, making a significant impact on the industry.

About the Role Grow Therapy is hiring a Senior or Staff Data Scientist in San Francisco. This role focuses on using data to inform key decisions and improve therapy services.

About tvScientifictvScientific is the premier CTV advertising platform specifically designed for performance marketers. By harnessing extensive data and innovative science, we automate and enhance TV advertising to achieve tangible business results. Our integrated solution encompasses media buying, optimization, measurement, and attribution, all within a single, efficient platform. Developed by industry veterans with deep experience in programmatic advertising, digital media, and ad verification, our platform provides advertisers with the trust they need to scale their business.As a vital member of our Data Science team, you will transform data into actionable insights, influence business strategies, and lead analytics projects from start to finish. Your daily responsibilities will include crafting tailored reporting and analytics tools to address the specific needs of our clients.