Senior Software Engineer- Fraud Marketplace
Mercado Libre20 hours ago
Governador Valadares, BrazilSenior
Responsibilities
- Design and evolve architectures and services that protect users from security incidents.
- Develop low-latency, highly available fraud-detection services.
- Build and maintain the fraud rule engine and detection pipelines.
- Integrate entities, rules, and risk models into production decision flows.
- Ensure observability through effective alerts, monitoring dashboards, and automated tests.
- Lead incident resolution and root-cause analysis for highly critical services.
- Improve the quality, performance, security, and availability of applications.
Requirements
- Experience developing and operating backend systems in production as a Software Engineer.
- Strong proficiency in Java or other high-performance compiled languages.
- Experience designing low-latency distributed systems, microservices, and messaging patterns.
- Knowledge of data structures, concurrency, and performance optimization.
- Experience with streaming systems such as Kafka and in-memory databases such as Redis.
- Experience with cloud application monitoring and observability tools such as Datadog.
Benefits
- Hybrid work arrangement.
- Work location in Osasco, São Paulo, Brazil.
Tech Stack
Categories
About Mercado Libre
Mercado Libre builds an e-commerce marketplace and fintech infrastructure for consumers and merchants across Latin America. It monetizes through marketplace transaction fees, payment processing (Mercado Pago), logistics and fulfillment (Mercado Envíos), advertising, and credit products. Founded in 1999 and headquartered in Buenos Aires, it operates in 18 countries and is publicly traded on Nasdaq under the ticker MELI.