Data Scientist - Fraud Prevention Specialist

Join the dynamic team behind the Protect360 BetterBid product as an accomplished Data Engineer. BetterBid is a cutting-edge, real-time decision engine that operates at the forefront of large ad platforms, delivering fraud and optimization signals before budgets are committed and downstream systems are activated. Our system processes billions of bid requests daily (over 5 million per second at peak), returning decisions in approximately 10 milliseconds end-to-end. Behind this technology is a robust data platform that ingests around 500 billion events daily (approximately 465 terabytes) from global mobile activities. We specialize in building large-scale ETL (Extract, Transform, Load) and feature pipelines utilizing tools such as BigQuery, Dataflow (Apache Beam), Dataform, and Airflow. Our team trains machine learning models and generates statistical signals from massive historical datasets. The real-time component leverages these artifacts through ultra-low-latency services powered by Bigtable, deployed across multiple regions to meet our aggressive latency and availability targets. As a part of AppsFlyer, the leading mobile measurement and attribution platform worldwide, you will be engaged in a greenfield initiative with new architecture and infrastructure, allowing you to directly influence product and business decisions. You will have ownership of the system from end to end, encompassing Kubernetes and OpenTelemetry-based observability, through data pipelines and model serving, to high-performance backend services.

Role Overview AppsFlyer is looking for a Backend Engineer to help build and improve scalable backend systems. This role focuses on developing solutions that support the performance and reliability of our platform for mobile marketing. What You Will Do Design and implement backend components that handle large-scale data and traffic Work closely with other engineers to deliver features and enhancements Contribute to the stability and efficiency of core services Location This position is based in Herzliya.

Join AppsFlyer, a leader in mobile attribution and marketing analytics, as a Backend Engineer in our innovative Measurements Unit. This unit serves as the heartbeat of our technology, processing vast amounts of real-time data across billions of daily events, encompassing mobile, web, CTV, gaming platforms, and more.Our team is responsible for crafting advanced attribution logic which is integral to our industry-leading solutions, significantly impacting partnerships with major players like Meta, Google, TikTok, and others.We pride ourselves on our rapid deployment culture, ensuring that code is released into production swiftly after development, all while maintaining a focus on safety, robustness, and architectural integrity. Our backend systems handle over a hundred billion events daily at remarkable speed.As a Backend Engineer at AppsFlyer, you will enhance and refine our microservices architecture to deliver the leading mobile analytics solution. We utilize cutting-edge technologies including Clojure, Go, Kafka, Redis, BigQuery, GraphQL, SQL, and NoSQL databases, alongside cloud solutions from AWS and GCP.We are committed to engineering excellence and are looking for talented backend developers who are eager to tackle technical challenges at scale while growing their skills in a supportive environment.At AppsFlyer, personal growth is key. You will have opportunities to expand your technical expertise by working with innovative technologies and participating in various training programs.

Role Overview Appsflyer is looking for a Full Stack Engineer in Herzliya. This position works closely with teams across the company to build and improve applications that serve our users. The role covers both front-end and back-end development, focusing on smooth integration and reliable performance.

Become a pivotal member of the Business Data & Development Group at AppsFlyer! As a leading mobile attribution and marketing analytics platform, AppsFlyer is experiencing rapid growth. Our expanding customer base leverages our diverse product offerings to generate valuable data, which we process and analyze to deliver actionable insights that empower our clients to make optimal decisions. The Business Data & Development team is crucial to the SaaS infrastructure at AppsFlyer, playing a vital role in designing and developing the core business workflows and services that drive our growth and help us expand our customer reach and product range. We invite an experienced Backend Engineer to join our core model team! This team's mission is to manage and maintain the services and workflows that oversee the lifecycle of AppsFlyer accounts, ensuring our clients enjoy a seamless and dependable user experience. We seek a seasoned backend engineer with expertise in crafting resilient and robust production services. You should have a solid understanding of modern microservices architecture, related technologies, and best practices. Your strong problem-solving skills, sense of accountability, teamwork, independence, and passion for continuous improvement are essential attributes we value. Our work involves developing event-driven systems and real-time APIs, predominantly utilizing Node.js, Go, and Python. We work with various technologies, including Apache Kafka, Kubernetes (K8S), managed AWS services (like RDS, CloudFront, Athena, ElastiCache), DataDog, and GraphQL. What you'll be doing: Design and develop end-to-end services and features, including requirement gathering, research, implementation, deployment, and monitoring. Integrate and implement AI flows and solutions within the team and broader department. Enhance quality and identify weaknesses in existing processes and services. Engage in brainstorming sessions and contribute to early-stage design discussions. Mentor and collaborate with team members, other development teams, and business units across the organization. Commit to continuous learning and staying updated on new technologies to ensure informed technology decisions.

Join our dedicated team at AppsFlyer, where we strive to combat marketing fraud with innovative and effective solutions. Our product, Protect360, employs real-time, multi-layered strategies to prevent and detect fraudulent activities.As a Senior Backend Engineer, you will play a crucial role in developing and optimizing our algorithms. Your work will enable our solutions to process large-scale data with exceptional speed and low latency, ensuring that our clients' advertising budgets are protected.You will take ownership of product features from conception to production, solve complex problems, collaborate with cross-functional teams, and continuously explore new technologies to keep our systems at the forefront of the industry. Your mentorship and leadership will help foster a culture of excellence within our team.

AppsFlyer is looking for an IT Service Desk Specialist to join the team in Herzliya. This frontline role supports employees worldwide, ensuring daily technology operations run smoothly and service experiences meet a high standard. As part of a global IT group that values AI-driven operations and automation, the position involves both hands-on technical troubleshooting and contributing to smarter, more efficient support solutions. The team welcomes candidates who combine strong technical knowledge with a service-focused approach and an interest in AI and automation. What you will do Technical Support & Troubleshooting Deliver technical support across all AppsFlyer offices, with a primary focus on the EMEA region. Identify and resolve hardware, software, and connectivity issues in both macOS and Windows environments. Troubleshoot Tier 1 office network and connection problems; escalate complex issues as needed. Install, configure, and troubleshoot end-user devices, software, and peripherals. Support video conferencing (Google Meet, Zoom, Zoom Rooms, Neat), audio/visual setups, and corporate events. Service Management Manage and respond to service requests using the IT ticketing system, documenting all interactions. Prioritize incidents and requests according to Service Level Agreements (SLAs). Guide colleagues through problem-solving and provide clear direction on IT products and services. Escalate unresolved issues to higher support tiers with full context and documentation. Operations & Continuous Improvement Oversee IT onboarding and offboarding to ensure a smooth employee experience. Maintain accurate IT asset inventory and support asset lifecycle management. Create and update knowledge base articles and technical documentation for team and self-service use. Identify and suggest improvements to IT procedures, workflows, and automation. Use AI tools and automation to boost support efficiency, reduce resolution times, and improve the employee experience.

At AppsFlyer, we pride ourselves on our robust backend infrastructure, processing over 200 billion mobile app events daily. Our systems leverage cutting-edge technologies such as Node.js, Go, Kafka, GraphQL, Neo4j, Redis, BigQuery, and AWS to deliver seamless service to our users on a global scale. The SaasLab group, a vital part of the AppsFlyer Operating System (AFOS) unit, oversees the SaaS platform and control plane. This foundational layer is crucial for managing users, accounts, billing, API gateway, authentication, permissions, and business integrations. Our systems support millions of API calls daily, catering to thousands of enterprise customers worldwide. We are seeking a dynamic R&D Group Lead to oversee the SaasLab group, guiding multiple engineering teams responsible for the essential platform services that underpin every AppsFlyer product. In this role, you will lead the technical vision and architectural transformation, ensuring the reliability and scalability of our SaaS infrastructure. The ideal candidate will possess a strong architectural mindset, experience in platform and infrastructure leadership, and the ability to align long-term technical strategies with the continuous delivery of business value.

The Web Attribution group at AppsFlyer designs and operates the data infrastructure that tracks web user journeys from the first click through to conversion. Managing over 150 billion events, this team expands AppsFlyer’s analytics beyond mobile, providing advertisers and marketers with real-time, accurate insights. Role overview This Data Engineer position centers on building and maintaining large-scale data pipelines. The work supports client dashboards and APIs, enabling customers to measure and optimize their web performance. The team’s efforts directly impact product features that clients use daily. What you will do Manage the entire data pipeline, from ingesting raw web events to distributed data processing and delivery. Develop and support the data layer that powers dashboards and APIs for clients. Shape product features that help customers track and improve web results. Integrate AI and large language model (LLM) features into data workflows, including intelligent validation, anomaly detection, and AI-driven analytics interfaces. Requirements Background in building and maintaining large-scale data pipelines. Experience working across the full data lifecycle, from ingestion to serving. Interest in applying AI and machine learning to data processing and analytics. Strong sense of ownership and motivation to shape product features, not just internal systems. Location This position is based in Herzliya.

Join AppsFlyer, a global SaaS leader trusted by industry giants like Meta, TikTok, Nike, and eBay to enhance their growth through precise measurement, analysis, and optimization. Our platform processes billions of events daily, and as a Product Designer, you will be pivotal in transforming complex data into user-friendly solutions. We are seeking a passionate and experienced Product Designer to help us shape the innovative future of our B2B platform. In this role, you'll be part of the Creative unit, collaborating closely with a diverse squad of product managers, engineers, data scientists, and analysts. At Creative, we harness cutting-edge AI-powered tools designed to address any creative production and optimization challenges, empowering advertisers to amplify their marketing campaign performance and meet their business goals. You will take complete ownership of the design process—from identifying user needs and uncovering hidden opportunities to ideating, prototyping, and crafting visually stunning solutions. Your contributions will also include establishing feedback loops that enable our products to evolve meaningfully.

Role Overview Shift4 Payments, Inc. is hiring a Senior Data Engineer to join the Data Infrastructure team in Herzliya. This team builds and maintains the data systems that support Shift4’s payment processing and technology products. What You Will Do Design, build, and maintain scalable data pipelines Work closely with data scientists and analysts to improve data workflows Ensure data integrity across systems and processes Impact and Collaboration This role shapes the backbone of Shift4’s data capabilities. Senior Data Engineers here help strengthen the company’s data infrastructure, supporting both current needs and future growth.

AppsFlyer, a global leader in marketing measurement, attribution, and data collaboration, empowers brands to make informed business decisions with privacy-focused technologies at scale. Our platform handles hundreds of billions of data points daily, supporting mission-critical products with an emphasis on scalability, reliability, and trust.The Collab Unit is on the lookout for a talented Team Leader to head the Audience Team. This team is crucial for developing the products and infrastructure that enable customers to create, manage, and activate high-value audiences across various channels and marketing scenarios. As the leader of this strategic domain, you will guide a multidisciplinary engineering team in shaping the future of audience building and activation.In this role, you will collaborate closely with product managers, architects, data teams, and other engineering teams to deliver scalable, dependable, and user-centric solutions. We seek a strong engineering leader who is enthusiastic about building exceptional teams, tackling complex data and backend challenges, and effectively driving execution in a dynamic environment.

Join the dynamic Finance team at AppsFlyer as an Accounts Receivable Specialist! We are seeking a diligent and results-oriented professional who thrives in a collaborative environment and is eager to contribute to our company's success. This is a full-time position within our Accounts Receivable team. As an Accounts Receivable Specialist, you will be responsible for managing collection processes, monitoring overdue accounts, and liaising with clients regarding their payments. Your role will involve both following established procedures and exercising your excellent communication skills to resolve account-related queries efficiently. Key Responsibilities: Oversee overdue accounts, effectively communicating with customers to address payment issues and updating accounts receivable records. Reconcile accounts and payment records across various providers. Ensure timely and precise cash application. Generate customer statements and recommend necessary escalations or write-offs. Manage account adjustments and handle billing/payment inquiries. Apply appropriate tax regulations and forecast collections on a weekly/monthly basis. Analyze billing data to prevent errors and delays. Qualifications: Bachelor’s degree in Business, Accounting, Finance, or a related field. A minimum of 2 years of practical experience in Accounts Receivable and Collections. Familiarity with ERP and CRM systems, such as NetSuite or Salesforce. Strong organizational and analytical skills with a process-oriented mindset. Ability to work independently with minimal supervision. Excellent time management, prioritization, and interpersonal communication skills. Proficient in Microsoft Office, particularly Excel. Fluency in English, both verbal and written. Bonus Points: Experience in the tech industry. Multi-lingual abilities. Referral from an AppsFlyer employee. At AppsFlyer, we pride ourselves on our diverse and inclusive workplace, reflecting the rich tapestry of our global community. We are committed to equal opportunities for all and encourage a wide range of talents to join our global teams, regardless of race, gender, culture, or sexual orientation. Curiosity, diversity, and innovation are core values we cherish in our employees and partners.

Role OverviewAs the Partner Development Manager at AppsFlyer, you will serve as the key strategic liaison between our organization and our most significant ecosystem partners, including but not limited to media partners and original equipment manufacturers (OEMs). Your primary role will involve crafting and executing partnership strategies that foster shared business growth and innovation. This position demands an autonomous professional with outstanding communication abilities and cross-functional collaboration skills, capable of aligning global stakeholders around common objectives.Key ResponsibilitiesFormulate a strategy with leading partners to ensure collective success.Gain in-depth knowledge of each partner’s business, identifying unique challenges and opportunities.Identify and map stakeholders, effectively navigating partner organizations to achieve our shared goals.Utilize critical thinking and evaluation skills to reinforce and enhance relationships.Demonstrate strong planning and prioritization abilities to manage various partner relationships simultaneously.Promote, facilitate, and enhance the adoption of AppsFlyer products among shared customers.Spot and actualize collaborative opportunities, such as joint marketing campaigns and shared research and development efforts.Facilitate strong internal communication to ensure company-wide support for partnership initiatives.

Role overview AppsFlyer is looking for a Senior Product Designer in Herzliya. This role focuses on designing products that improve the usability and functionality of the AppsFlyer platform. What you will do Work closely with cross-functional teams to create user-focused product experiences Apply strong design principles to influence product vision and strategy Ensure designs align with user needs and help shape the direction of the platform What we look for Experience designing digital products with a focus on usability Ability to collaborate across teams and disciplines Strong grasp of design principles and user-centered thinking

Role Overview AppsFlyer is seeking a Global Tax Manager to join the finance team in Herzliya. This position shapes the company’s tax strategy across Israel, the U.S., Europe, APAC, and other international regions. The role calls for deep expertise in international taxation, tax planning, and transfer pricing, gained through hands-on work within multinational organizations. What You Will Do Lead global corporate tax compliance for multiple jurisdictions. Oversee preparation and review of tax returns, provisions, and filings worldwide. Develop and implement international tax planning strategies to optimize the group’s effective tax rate. Manage transfer pricing policies, documentation, and intercompany agreements. Advise on cross-border transactions, restructurings, and M&A activities. Work closely with external advisors, including Big 4 firms and consultants, on complex tax matters. Lead tax audits and interact with tax authorities in various countries. Monitor changes in global tax regulations (including OECD, BEPS, Pillar 2, and others). Partner with finance, legal, and business teams to provide tax guidance. Maintain strong internal controls and tax reporting processes. Promote collaboration across functions to integrate tax considerations into business planning. Educate internal stakeholders on tax implications to build organizational understanding. Simplify tax-related processes to improve efficiency. Translate complex tax concepts into practical business insights, ensuring tax strategies align with company goals. Who We’re Looking For The right candidate brings significant experience in international tax, tax planning, and transfer pricing, ideally within a global business setting. Strong communication skills and the ability to work with teams across finance, legal, and business functions are important for success in this role.

About PayoneerEstablished in 2005, Payoneer is a leading global financial platform dedicated to simplifying cross-border business transactions. Our mission is to connect underserved businesses with the burgeoning global economy. Our diverse community comprises over 2,500 professionals working tirelessly to support customers and partners across more than 190 countries and territories.By streamlining financial workflows—ranging from global payments and compliance to multi-currency management, workforce optimization, and business intelligence—we equip businesses with the necessary tools to operate efficiently on a global scale and foster growth with confidence.We are seeking a collaborative team player who excels in interpersonal communication and possesses a service-oriented mindset. An innovative thinker who embraces creativity and adaptability, you should be self-motivated, quick to learn, and accountable.In your role as a Senior DevSecOps Engineer at Payoneer, you will be pivotal in integrating security throughout the software development lifecycle (SDLC). Your responsibilities will include designing, implementing, and maintaining security controls and automation across our CI/CD pipelines, infrastructure, and application stack.Key Responsibilities:Integrate and manage security tools within the CI/CD pipeline, including:SAST (e.g., SonarQube)SCA / Dependency Scanning (e.g., Snyk, Trivy, GitHub Dependabot)Secret Detection (e.g., Gitleaks, HashiCorp Vault)Container/Image Scanning (e.g., Aqua, Prisma Cloud, Trivy)Drive security automation and enforcement for:Infrastructure as Code (e.g., Terraform)Configuration Management (e.g., Ansible, Chef)GitOps workflows (e.g., ArgoCD)Implement security guardrails and best practices throughout the SDLCAutomate compliance checks (e.g., OWASP Top 10, CIS Benchmarks) within development workflowsIntegrate with observability and monitoring systems (e.g., Prometheus, Grafana, ELK, Coralogix)Collaborate with cross-functional teams including Product, QA, Development, and IT/Ops to enhance overall security postureParticipate in on-call rotations for production systems as requiredYour Profile:Minimum 3 years of experience in DevOps, DevSecOps, or Security Engineering...

Join AppsFlyer’s dedicated Security team as a Senior Application Security Engineer, where you'll play a pivotal role in safeguarding our products and applications. In this influential position, you will spearhead our security design initiatives, champion secure coding practices, and rigorously validate our services against established security standards.Collaborating closely with our Research and Development (R&D) and Product teams, you’ll proactively identify, mitigate, and prevent security risks throughout the software development lifecycle (SDLC). As a seasoned engineer, you will take charge of security initiatives, mentor developers in security best practices, and significantly contribute to enhancing the security posture of AppsFlyer’s offerings.The perfect candidate will be highly motivated, eager to learn, and possess a strong “security by design” mindset. This role offers exciting career development opportunities, allowing you to expand your expertise in Application Security (AppSec), DevSecOps, and cloud security.

Team Overview The Site Reliability Engineering (SRE) team at Pendo plays a crucial role in provisioning and overseeing cloud infrastructure throughout the development and production lifecycle for all product initiatives. We collaborate closely with developers and product managers to guarantee that our products are not only reliable and high-performing but also cost-efficient. Our platform leverages Google Kubernetes Engine (GKE) alongside various Google technologies including Memorystore, Cloud Datastore, PubSub, Cloud Functions, BigQuery, and Vertex AI, in addition to services from vendors like Amazon SES. In the development phase, SREs ensure that developers have stable and efficient continuous integration and release pipelines, as well as development environments enabling swift delivery of new features. In production, SREs handle Tier 1 on-call duties and incident management, supporting a high-throughput platform that processes over 35 billion events daily. To maintain reliability for our customers, SREs work in tandem with developers and product managers to define service level objectives, analyze failure scenarios, and design systems that effectively balance cost with reliability. Additionally, SREs partner with the Information Security team to secure our cloud infrastructure, ensuring compliance with industry standards like SOC 2. Key Responsibilities Develop high-quality infrastructure-as-code that automates the provisioning, deployment, scaling, and monitoring of Pendo’s infrastructure to ensure reliability and performance. Create maintainable code focused on product functionality, with an emphasis on operations, scalability, resilience, and monitoring. Collaborate with fellow engineers to ensure that new services are well-designed, properly monitored, and accompanied by clear SLIs and achievable SLOs. Troubleshoot production issues, quickly identify mitigation strategies, and implement preventive measures. Maintain and automate runbooks for manual tasks wherever feasible. Proactively monitor our capacity, quotas, and other performance limits to plan for growth effectively. Engage in a 24x7 on-call rotation to manage product availability issues and urgent customer support escalations.