Sr Software Engineer Backend- Search Ads Core

MercadoLibre
Buenos Aires
Workplace: HybridFull timeFunction: Software EngineeringSkills: ["Code reviews","Data-driven decision-making","Security and quality focus","Continuous learning"]

Design and scale secure, high-impact backend systems for Search Ads Core, applying solid engineering practices and continuous learning. You’ll write quality Kotlin/JVM code, support complex refactors, and lead code reviews. Build robust, scalable APIs, work with distributed systems patterns (async communication, resilience, clustering), and use observability dashboards to drive data-informed decisions. Improve automated testing, CI/CD, and monitoring for retrieval/ranking models.

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FursaFursa
MercadoLibre
MercadoLibre
2 days ago

Sr Software Engineer Backend- Search Ads Core

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Source: Company careers pageValidated by: Fursa AI
Last checked: 15 hours agoStatus: Live

Job Summary

Design and scale secure, high-impact backend systems for Search Ads Core, applying solid engineering practices and continuous learning. You’ll write quality Kotlin/JVM code, support complex refactors, and lead code reviews. Build robust, scalable APIs, work with distributed systems patterns (async communication, resilience, clustering), and use observability dashboards to drive data-informed decisions. Improve automated testing, CI/CD, and monitoring for retrieval/ranking models.
Location: Buenos Aires
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Sr. Manager level

Key Responsibilities

  • •Write high-quality Kotlin/JVM code, support complex refactors, and actively participate in code reviews
  • •Design and evolve robust, scalable APIs with attention to compatibility and modularity across services
  • •Work with distributed systems patterns including asynchronous communication, resilience, and cluster operations
  • •Make technical decisions backed by data using observability dashboards and collective team experience
  • •Evolve strategies for automated testing, CI/CD, and monitoring for retrieval and ranking models

Key Requirements

  • •Strong software engineering experience on JVM with proficiency in Kotlin and/or Java
  • •Experience with distributed system architectures and microservices
  • •Knowledge of relational and non-relational databases, plus distributed caching systems
  • •Experience applying engineering best practices (clean code, automated tests, code reviews, CI/CD) with focus on security and quality
  • •Valued: knowledge of embedding generation models
Skills:Code reviewsData-driven decision-makingSecurity and quality focusContinuous learning
Tech Stack:KotlinJVMJavaAPIsMicroservicesDistributed systemsCI/CDRetrievalRankingEmbeddingsObservability dashboards

Company Brief

MercadoLibre
Operates Latin America's leading e‑commerce marketplace and fintech ecosystem, offering online buying and selling, classifieds, payment processing, credit, and logistics services across multiple countries in the region.
Industry: Online Marketplaces
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: Buenos Aires, Argentina
Founded: 1999
Glassdoor
Glassdoor: 3.8
WebsiteLinkedIn