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Build and scale backend services in Java/Kotlin for Airwallex’s growth initiatives, enabling data-driven user acquisition and global market expansion through A/B testing, analytics pipelines, and secure microservices.
Roles & Responsibilities Translate application storyboards and use cases into functional applications Design, build, and maintain efficient, reusable, and reliable Java code Ensure the best possible performance,…
Senior Backend Engineer designs, builds, and deploys scalable financial-services systems for North American clients, using Java, Kubernetes, CI/CD, and cloud platforms.
Build and prototype AI-driven algorithms for fraud detection and AML compliance using large financial datasets, Scala/Python, Spark, and Kafka.
Build and maintain Tookitaki's cloud-native platform on AWS EKS using GitOps (Argo), Terraform, and Kubernetes operators, enabling self-service infrastructure for application teams.
Senior Software Engineer applying ML/AI to fintech problems like fraud detection, user conversion, and transaction processing using Java, Scala, and GCP.
Builds and maintains backend services for a consumer fintech app serving 6M+ users, using Java, Scala, and Google Cloud tools like Kubernetes, Spanner, and Pub/Sub.
Build and improve Nextdoor’s backend services using Python/Django, Kotlin/JVM, and cloud tools like AWS, Kafka, and Postgres to power a neighborhood-focused social platform.
Build and scale Nextdoor’s backend services using Python/Django, Go, Kotlin/JVM, and cloud tools like AWS, Kafka, and Postgres while collaborating with cross-functional teams to deliver features that strengthen local communities.
Principal Software Engineer at eBay Ads leads architecture and modernization of large-scale distributed systems for ad serving, targeting, and reporting, using Java/Scala and cloud-native tech.
Build and scale automated business onboarding and verification systems for Wise, using Java/Spring and ML basics to reduce friction while ensuring compliance across Europe and the UK.
Build and refine agentic tooling for autonomous code-modification agents, including orchestration, verification, and evaluation systems, while contributing to SonarQube’s Java/Spring codebase.
Builds and maintains ICE's Omega framework, a high-throughput data distribution system, using Java and JVM tuning; designs agentic tooling for developer teams.
Lead a team building a real-time FX risk valuation platform in Java, integrating Apache Ignite, Kafka/Solace, and Oracle/MongoDB while optimizing JVM performance and cloud deployments.
Builds and maintains backend systems in Scala/Java for ARM’s developer tools, focusing on distributed systems, concurrency, and clean code practices.
Senior Java developer building distributed systems with Kafka, Kubernetes, and event-streaming frameworks like Flink or Spark.
Build and scale core payment services using Java/Spring Boot on AWS, focusing on high-traffic systems and microservices architecture for PayPay Card’s credit platform.
Build and scale Wise’s backend systems that detect financial crime and automate customer verification, using Java/Spring and distributed architectures to reduce operational costs and improve user experience.
Senior Data Engineer builds and optimizes enterprise-scale data pipelines using Spark, Scala, and Microsoft Fabric to integrate and process large datasets for analytics and decision-making.
Designs and builds scalable data pipelines and microservices using Spark, Scala/Java, and JVM tools to integrate enterprise data systems.
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