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Senior Software Engineer (.NET Performance & Reliability)

Criteo - Company

1er Arrondissement, Paris, ๐Ÿ‡ซ๐Ÿ‡ท FranceFull-time - Senior (4-7 years)0 applicantsCloses Jun 15, 2026

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Job description

Role overview

Criteo seeks a Senior Software Engineer to enhance platform reliability and performance within their R&D department. This role bridges product engineering, platform engineering, and infrastructure teams to design, build, and operate large-scale distributed systems in the AdTech industry.

The position focuses on optimizing system reliability, ensuring efficient operations, and driving innovation in performance-critical environments.

Responsibilities

  • Design and implement high-performance, scalable distributed systems
  • Collaborate with cross-functional teams to resolve system reliability challenges
  • Optimize platform architecture for reliability and operational efficiency

Requirements

  • 5+ years of .NET development experience
  • Proven expertise in distributed systems architecture
  • Strong understanding of reliability engineering principles

Benefits

  • Work in Paris' tech innovation hub
  • Professional growth in cutting-edge AdTech solutions

Keywords

.NETC#distributed systemsreliability engineeringperformance optimizationAdTechcloud infrastructuremicroservices