Fraud Senior Director Jobs

About Ramp Ramp is building the smart infrastructure for finance teams, embedded in the transaction flow of every dollar a business spends. We automate how over $200B in annualized spend flows in and out of 70,000+ companies: authorizing payments, flagging risk, categorizing spend, and closing books. The problems are high-stakes, data-dense, and unforgiving. We hire people with high agency and high urgency. We look for slope over intercept. We care less about where you trained and more about what you’ve built. At Ramp, everyone is a builder who owns problems end to end and makes consequential decisions that shape the outcome. The median Ramp customer saves 5% and grows revenue 16% in their first year – far in excess of businesses operating without Ramp. We believe every ambitious company deserves the same. If you want to build systems that directly shape how companies move and manage billions, Ramp is the place to do it. About the Role We’re seeking someone to lead the future of fraud machine learning at Ramp. In this role, you will help build core machine learning models, design data architectures, and set strategic roadmaps to help Ramp mitigate fraud-related threats while minimizing the friction experience by legitimate users. You will partner closely with product and engineering counterparts across model design, implementation, execution, and analysis. What You’ll Do Employ statistical and machine learning techniques on large datasets to discover patterns of fraud, platform abuse, and identity theft Prototype and productionize machine learning models and rules-based systems to protect Ramp and its users from fraud Partner closely with Fraud Engineering and Data Platform teams to augment and leverage data across first and third party sources, ensuring we’ve added as much context as possible to every decision we make Contribute to the culture of Ramp’s machine learning team by influencing processes, tools, and systems that will allow us to make better decisions in

About us Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia. We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do. Our co-founders are Bret Taylor and Clay Bavor . Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace. About the Public Sector team Sierra recently received FedRAMP High certification, enabling us to bring our industry-leading technology to partners in the US public sector. We’re now building our founding public sector team to redefine the relationship between the government and its citizenry. Today, our agents already enable citizens to access social services, report fraud, and understand complex government systems. Simultaneously, they empower government officials to better hear the concerns and inquiries of their constituencies. We are explicitly nonpartisan and committed to empowering public servants to leverage AI to advance their important missions. In our journey, we are guided by a set of values that are at the core of our actions and define our cult

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies, from the world’s largest enterprises to the most ambitious startups, use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a significant amount of work ahead. This is an opportunity to put the global economy within everyone’s reach while doing the most important work of your career. About the team Technical Account Managers work cross-functionally to support Stripe’s largest and most complex users. Through trusted relationships, we offer customized, strategic consultation and proactively identify opportunities to help businesses deliver more value to their customers, optimize their technical operations, and accelerate global growth with Stripe. What you’ll do Strategically support Stripe’s largest and most complex users. Responsibilities Provide a Gold Standard Experience to key stakeholders at your assigned accounts. Work with the broader Operations team to share current-state context, resources, and knowledge that support a Gold Standard Experience across teams that interact directly with users through support channels, external documentation, product feedback, and product development. Build long-term user relationships that increase loyalty to Stripe and its products. Work cross-functionally, both internally and within users’ organizations, to provide and implement operational solutions across areas including fraud and disputes, declines, product adoption, and global expansion. Partner with Account Management and other user-facing teams as part of a broader effort to support Stripe users. Lead user-facing meetings in person and by video. Contribute to the continued design of this support offering. Create user-facing content that provides long-term solutions. Who you are We're looking for someone who meets the minimum requirements for the role. If you mee

About us Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia. We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do. Our co-founders are Bret Taylor and Clay Bavor . Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace. About the Public Sector team Sierra recently received FedRAMP High certification, enabling us to bring our industry-leading technology to partners in the US public sector. We’re now building our founding public sector team to redefine the relationship between the government and its citizenry. Today, our agents already enable citizens to access social services, report fraud, and understand complex government systems. Simultaneously, they empower government officials to better hear the concerns and inquiries of their constituencies. We are explicitly nonpartisan and committed to empowering public servants to leverage AI to advance their important missions. In our journey, we are guided by a set of values that are at the core of our actions and define our cult

Who we are About Stripe Stripe is a technology company focused on improving the conditions for economic growth and prosperity. We build programmable financial infrastructure, rethinking from first principles how financial services should work, to make it easier and cheaper for any business to start and scale. More than 10 million businesses build on Stripe, spanning the economic frontier—from solo founders to established enterprises—united by a practical focus on growth. The most ambitious companies in the world use Stripe as core infrastructure to grow faster. They process trillions of dollars a year on Stripe, equivalent to around 1.6% of global GDP. While economic growth makes everyone better off, open markets also enable greater variety. When any business can easily serve a global customer base, the quality and diversity of products in the world increase, and craft and creativity are unleashed into the smallest niches. Our own growth is wholly contingent on the success of the businesses building on Stripe. We therefore invest back into our technology at an unusual rate. We make upgrades to our products every single day to deliver compounding gains to our customers. We maintain some of the most reliable APIs on the internet. We build entirely new pieces of financial infrastructure to enable new ideas. And our significant advances in risk and fraud infrastructure over many years are making the internet economy safer and more accessible. Though people at Stripe don’t tend to take themselves seriously, Stripe is a fairly serious place: our customers are depending on us for their livelihoods. We admire ambition, intensity, curiosity, humility, and rigor. The most effective people become knowledgeable about many domains besides their own. Any company is an applied exercise in understanding some aspect of society or the market. In working with so many (especially the new and innovative ones), we think that Stripe is one of the very best places to learn about how

Who we are About Stripe Stripe is a technology company focused on improving the conditions for economic growth and prosperity. We build programmable financial infrastructure, rethinking from first principles how financial services should work, to make it easier and cheaper for any business to start and scale. More than 10 million businesses build on Stripe, spanning the economic frontier—from solo founders to established enterprises—united by a practical focus on growth. The most ambitious companies in the world use Stripe as core infrastructure to grow faster. They process trillions of dollars a year on Stripe, equivalent to around 1.6% of global GDP. While economic growth makes everyone better off, open markets also enable greater variety. When any business can easily serve a global customer base, the quality and diversity of products in the world increase, and craft and creativity are unleashed into the smallest niches. Our own growth is wholly contingent on the success of the businesses building on Stripe. We therefore invest back into our technology at an unusual rate. We make upgrades to our products every single day to deliver compounding gains to our customers. We maintain some of the most reliable APIs on the internet. We build entirely new pieces of financial infrastructure to enable new ideas. And our significant advances in risk and fraud infrastructure over many years are making the internet economy safer and more accessible. Though people at Stripe don’t tend to take themselves seriously, Stripe is a fairly serious place: our customers are depending on us for their livelihoods. We admire ambition, intensity, curiosity, humility, and rigor. The most effective people become knowledgeable about many domains besides their own. Any company is an applied exercise in understanding some aspect of society or the market. In working with so many (especially the new and innovative ones), we think that Stripe is one of the very best places to learn about how

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. Operations at Brex Operations is the backbone of Brex’s mission to power businesses through our Intelligent Finance Platform. We own credit, fraud, money movement, and payments, protecting our customers and our company. From product operations that ensure flawless launches to scalable systems that drive innovation and precision, we operate at the intersection of product, design, engineering, and customer success. If you want to work at the heart of the business, Operations is where you belong. What you’ll Do: Brex extends credit to businesses, and Collections helps customers resolve past-due balances while managing credit losses and preserving customer relationships wherever possible. The team manages accounts from failed payments and early delinquency through payment plans, workouts, charge-off, and legal recovery. Our portfolio consists of unsecured business credit, requiring sound commercial judgment and an understanding of busines

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Director, Customer Performance Who is Mastercard? Mastercard is a global technology company in the payments industry, operating as the world’s fastest payment processing network. Our mission is to connect and power an inclusive, digital economy that benefits consumers, financial institutions, merchants, governments and businesses in more than 210 countries and territories. Safety and security are top priorities and we continually find opportunities to make transactions safe, simple, smart, and accessible. Overview: Franchise is core to all Mastercard business. Franchise enables business growth and value, fostering interactions with customers which provides ongoing trust and confidence in the evolving payments and data driven ecosystem. This role enables high-risk acquirers to participate in the Mastercard global ecosystem by engaging directly with customers to improve ecosystem performance and strengthen participants’ understanding of business requirements. About the Role: With the growth of merchant fraud, acquirers must strengthen their screening of new merchants, as well as closely monitor new risk signals in transaction data, while ensuring their merchants remain compliant with local laws and Mastercard standards. To help acquirers achieve this, the Franchise team is looking for a fraud

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Principal Product Architect Mastercard powers economies and empowers people in more than 200 countries and territories worldwide. Together with our customers, we are building a sustainable economy where everyone can prosper. Through secure, simple and accessible digital payments, our technology, partnerships and networks help people, businesses and governments reach their full potential. A2A Risk Solutions: Principal Product Architect We are seeking a Principal Product Architect to join our award-winning Account-to-Account (A2A) Risk Solutions team. Our products combine advanced data science and payments expertise to help financial institutions combat fraud and financial crime. This role will be central to designing and scaling Mastercard's global A2A Risk Solutions. Working closely with product, engineering, data science, customers, financial institutions and technology partners, you will define scalable architecture patterns, shape technology strategy and support expansion into new markets. Responsibilities Define and maintain solution architectures that align with business objectives, product requirements and architectural principles. Translate business, customer and market requirements into scalable, secure and resilient technical designs. Lead architecture for A2A fraud and f

The Starting Hourly Rate / Salario por Hora Inicial is $18.50 USD per hour. The Pay Range / Rango salarial is $18.50 USD - $27.75 USD per hour. ALL ABOUT TARGET As a Fortune 50 company with more than 350,000 team members worldwide, Target is an iconic brand and one of America's leading retailers. Working at Target means the opportunity to help all families discover the joy of everyday life. Caring for our communities is woven into who we are, and we invest in the places we collectively live, work and play. We prioritize relationships, fuel and develop talent by creating growth opportunities, and succeed as one Target team. At our core, our purpose is ingrained in who we are, what we value, and how we work. It's how we care, grow, and win together. ALL ABOUT ASSETS PROTECTION Assets Protection (AP) teams function to keep our guests, team and brand safe and secure and lead through crisis events. They protect profitable sales by mitigating shortage risks, preventing, investigating and resolving theft and fraud to ensure product is available for our guest. At Target, we believe in our team members having meaningful experiences that help them build and develop skills for a career. The role of a Target Security Specialist can provide you with the: Skills using intelligence-led tactics to keep team members and guests safe and secure Experience in crisis response, safety and crowd management; providing support to both guests and team members Skills in de-escalation as well as experience with recovering stolen merchandise to prevent shortage Ability to utilize Target's video surveillance system Ability to properly document cases using industry case management systems As a Target Security Specialist, no two days are ever the same, but a typical day will most l

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Director, Mastercard Transaction Services, Compliance Officer and Money Laundering Reporting Officer (MLRO) Mastercard Transaction Services (MTS) and its subsidiaries are the legal entities under which all Mastercard's licensed money transfer and payment initiation services will be conducted, reporting into the Commercial and New Payments Platform (CNPF) division. The MTS business unit and the MTS shared services functions are housed under the umbrella of MTS and are comprised of components central to the activities of a licensed payment services firm. These components include: • Payment/Money transmitter licenses for operating payments business in defined jurisdictions • Contract definition (associated T&Cs) specific to the MTS entity and its umbrella geographies • Associated settlement accounts and other services for the relevant MTS entity • Compliance services including, but not limited to, due diligence, real-time sanctions screening/AML/fraud management, etc. • Regulatory reporting to the relevant regulators on behalf of the regulated business and its subsequent activities MTS LAC (MTS Mexico) is the authorized and regulated licensed entity within Mastercard Transaction Services (MTS) in Mexico through which regulated payments activity is undertaken for our Mexico-based customers and other

Our Compliance Governance team is responsible for ensuring that our organization complies with applicable laws, regulations, and industry standards. You will be part of the core compliance team in establishing policies & advisory, procedures, and controls to monitor and enforce compliance, and play a critical role to mitigate regulatory risks. About the Role The Blockchain Investigator, Financial Crimes role will be hybrid if in one of our hub-cities or remote and report to the VP of Compliance. This role focuses on executing advanced and specialized on-chain investigations, mitigating regulatory risk, and preparing SAR filings to identify, report and prevent financial crimes within the cryptocurrency ecosystem. As a core member of the compliance organization, this investigator will leverage blockchain analytics and threat intelligence to identify, assess, and disrupt sophisticated illicit network typologies and support global MLRO teams with an emphasis on North America clients (US & Canada). Responsibilities In this role, you will: Proactive Typology/Risk Identification : Be at the forefront of risk identification by proactively identifying exposure to illicit typologies, such as potential sanctions evasion, money laundering and scams. Evaluate external threat intelligence referrals. Advanced Blockchain Investigations: Document and map complex illicit networks and trace illicit funds through blockchain networks by using blockchain analytics tools like Chainalysis or TRM Labs. Global Risk Management: Work with global MLROs to provide investigative support and relevant insights to ensure case completion. Interdiction: Evaluate suspected wallet addresses against established fraud typologies to make data-driven blacklisting decisions and maintain interdiction controls. Transaction Monitoring Con

This role is for applicants actively looking to start before December 1, 2026. Who we are About Stripe Stripe is a technology company focused on improving the conditions for economic growth and prosperity. We build programmable financial infrastructure, rethinking from first principles how financial services should work, to make it easier and cheaper for any business to start and scale. More than 10 million businesses build on Stripe, spanning the economic frontier—from solo founders to established enterprises—united by a practical focus on growth. The most ambitious companies in the world use Stripe as core infrastructure to grow faster. They process trillions of dollars a year on Stripe, equivalent to around 1.6% of global GDP. While economic growth makes everyone better off, open markets also enable greater variety. When any business can easily serve a global customer base, the quality and diversity of products in the world increase, and craft and creativity are unleashed into the smallest niches. Our own growth is wholly contingent on the success of the businesses building on Stripe. We therefore invest back into our technology at an unusual rate. We make upgrades to our products every single day to deliver compounding gains to our customers. We maintain some of the most reliable APIs on the internet. We build entirely new pieces of financial infrastructure to enable new ideas. And our significant advances in risk and fraud infrastructure over many years are making the internet economy safer and more accessible. Though people at Stripe don’t tend to take themselves seriously, Stripe is a fairly serious place: our customers are depending on us for their livelihoods. We admire ambition, intensity, curiosity, humility, and rigor. The most effective people become knowledgeable about many domains besides their own. Any company is an applied exercise in understanding some aspect of society or the market. In working with so many (especially the new and innovative

This role is for applicants actively looking to start before December 1, 2026. Who we are About Stripe Stripe is a technology company focused on improving the conditions for economic growth and prosperity. We build programmable financial infrastructure, rethinking from first principles how financial services should work, to make it easier and cheaper for any business to start and scale. More than 10 million businesses build on Stripe, spanning the economic frontier—from solo founders to established enterprises—united by a practical focus on growth. The most ambitious companies in the world use Stripe as core infrastructure to grow faster. They process trillions of dollars a year on Stripe, equivalent to around 1.6% of global GDP. While economic growth makes everyone better off, open markets also enable greater variety. When any business can easily serve a global customer base, the quality and diversity of products in the world increase, and craft and creativity are unleashed into the smallest niches. Our own growth is wholly contingent on the success of the businesses building on Stripe. We therefore invest back into our technology at an unusual rate. We make upgrades to our products every single day to deliver compounding gains to our customers. We maintain some of the most reliable APIs on the internet. We build entirely new pieces of financial infrastructure to enable new ideas. And our significant advances in risk and fraud infrastructure over many years are making the internet economy safer and more accessible. Though people at Stripe don’t tend to take themselves seriously, Stripe is a fairly serious place: our customers are depending on us for their livelihoods. We admire ambition, intensity, curiosity, humility, and rigor. The most effective people become knowledgeable about many domains besides their own. Any company is an applied exercise in understanding some aspect of society or the market. In working with so many (especially the new and inno

Ready to do the most impactful work of your career? At Coinbase , we are uncompromising on our mission to increase economic freedom. The bar is high, the environment is intense, and we like it that way. This isn't a place for complacency, it’s a place to be pushed past your perceived limits. If you're ready to build the future of finance alongside people who refuse to settle for "good enough," you belong here. Coinbase is a remote-first, but not remote-only company. Expect to get together quarterly for intense in-person working sessions called “surges.” learn more about working at Coinbase . Staff Machine Learning Engineer, Identity Verification As a Staff Machine Learning Engineer on the Identity Verification team within the Platform group, you'll own the ML systems that determine whether a person, document, and capture session are legitimate. Every signup, account recovery, and high-risk action at Coinbase depends on these models. You'll lead the technical strategy for IDV ML end-to-end, from architecture through production enforcement, protecting the integrity of millions of accounts. What you'll do: Own the full IDV ML stack, including document authenticity models, 1:1 and 1:N face-match, liveness detection, presentation-attack detection, and deepfake/injection detection from feature pipeline through threshold tuning and production enforcement. Build identity-graph systems using GNNs that cluster accounts sharing biometric, device, and document signals to detect synthetic-identity rings and coordinated fraud at onboarding. Develop behavioral and device-intelligence models for capture-session anomaly detection, bot-vs-human classification, and device-fingerprint-based risk scoring at real-time latency. Drive vendor ML strategy by benchmarking external models against a Coinbase-owned evaluation set, designing dynamic routing logic across providers and geographies, and building the in-house evaluation layer that catches regressions befo