Senior Security Engineer - Antiscraping

MercadoLibre
Medellín
Workplace: HybridFull timeFunction: CybersecuritySkills: ["Learning Agility"]

Design and scale secure systems that detect and mitigate malicious automation in real time. Build high-performance Go microservices focused on scalable architecture, resilience, and observability. Research new evasion techniques and translate traffic abuse patterns into automated security controls. Partner with security, platform, and infrastructure teams to incorporate new signals and respond quickly to threats, driving technical design, code reviews, and continuous improvement.

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MercadoLibre
MercadoLibre
2 days ago

Senior Security Engineer - Antiscraping

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Last checked: 6 minutes agoStatus: Live

Job Summary

Design and scale secure systems that detect and mitigate malicious automation in real time. Build high-performance Go microservices focused on scalable architecture, resilience, and observability. Research new evasion techniques and translate traffic abuse patterns into automated security controls. Partner with security, platform, and infrastructure teams to incorporate new signals and respond quickly to threats, driving technical design, code reviews, and continuous improvement.
Location: Medellín
Workplace: Hybrid
Employment Type: Full time
Job Function: Cybersecurity
Seniority: Mid level

Key Responsibilities

  • •Design, develop, and evolve detection and mitigation mechanisms to identify and stop malicious automation in real time.
  • •Develop high-performance Go microservices using scalable architecture, resilience, and observability principles.
  • •Research new evasion techniques used by automation tools and design controls to detect and mitigate sophisticated behaviors.
  • •Analyze large volumes of traffic to discover abuse patterns and convert findings into automated security controls.
  • •Collaborate with security, platform, and infrastructure teams to add new signals, strengthen protection mechanisms, and respond quickly to threats, including technical design and code reviews.

Key Requirements

  • •Solid backend development experience using Go and microservices architecture design.
  • •Strong software engineering practices including automated testing, observability, error handling, and performance optimization.
  • •Experience processing large volumes of data or building real-time systems.
  • •Ability to design and evolve mechanisms to detect and mitigate malicious automations in real time.
  • •Experience investigating and addressing sophisticated evasion behaviors used by automation tools.
Experience:E-commerceFinancial servicesReal-time systemsMicroservices
Skills:Learning Agility
Tech Stack:Go

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