Senior Software Engineer

MercadoLibre
Buenos Aires
Workplace: HybridFull timeFunction: Software EngineeringSkills: ["Collaboration","Continuous learning"]

Design and scale innovative, secure systems that deliver real, high-impact outcomes. Own the agent platform used to create, manage, and operate at scale, building capabilities for evaluation, testing, and observability. Turn evaluation results into actionable improvements for model selection, prompt tuning, conversational flows, and agent configuration. Collaborate with product, business, and engineering teams to translate needs into measurable solutions, while staying current with generative AI and agent best practices.

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FursaFursa
MercadoLibre
MercadoLibre
3 days ago

Senior Software Engineer

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Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 14 hours agoStatus: Live
Reposted: similar role first listed 1 month ago

Job Summary

Design and scale innovative, secure systems that deliver real, high-impact outcomes. Own the agent platform used to create, manage, and operate at scale, building capabilities for evaluation, testing, and observability. Turn evaluation results into actionable improvements for model selection, prompt tuning, conversational flows, and agent configuration. Collaborate with product, business, and engineering teams to translate needs into measurable solutions, while staying current with generative AI and agent best practices.
Location: Buenos Aires
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Evolve and maintain the agent platform to create, manage, and operate at scale.
  • •Build capabilities to improve agent quality, including evaluation, testing, and observability tools.
  • •Convert evaluation outputs into actionable improvements for model selection, prompt adjustments, conversational flows, and agent configuration.
  • •Collaborate with product, business, and technology teams to translate needs into measurable solutions and metrics.
  • •Stay up to date on generative AI and agent ecosystem trends, models, and best practices.

Key Requirements

  • •Knowledge of microservices architecture, distributed systems, and asynchronous processing.
  • •Experience integrating LLMs and their APIs (e.g., Anthropic, GPT, Gemini, DeepSeek).
  • •Proficiency in backend development languages such as Go, Java, or Python.
  • •Knowledge of RESTful API design and development practices like SOLID, Clean Architecture, and TDD.
  • •Experience with relational databases such as MySQL and building AI platforms or agents.
Experience:Generative AILLMsMicroservicesDistributed systemsAI agents
Skills:CollaborationContinuous learning
Tech Stack:MicroservicesDistributed systemsAsynchronous processingLLMsAnthropicGPTGeminiDeepSeekGoJavaPythonRESTful APIsSOLIDClean ArchitectureTDDMySQLObservabilityTestingPromptingConversational flows

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