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Criteo

Senior Software Development Engineer - Security - IDAM

seniorsoftware developmentsecurityIDAMidentity and access managementPythonJavaC#GoActive DirectoryKerberosOIDCDockerKubernetesCI/CDTerraformPrometheusGrafanaELK stackSentryinfrastructureSREbackendREST APIdistributed systemsLinuxnetworkingmonitoringautomationmentorshiphybrid

Key details

Salary

Not specified

Employment type

Permanent Full Time

Seniority

Senior

Years experience

5-10

Location

Paris, Île-de-France, France

Full job description

Senior Software Development Engineer role in Security - IDAM team at Criteo. The team builds authentication and access management foundations for internal R&D platforms and services, including browser-based and server-to-server authentication flows, identity lifecycle management, token exchange, and secure access for user and service accounts. Technologies include Active Directory, Kerberos, OIDC, and internal solutions. Responsibilities include end-to-end feature delivery, software design and development, production system operation focusing on availability, performance, observability, and security, CI/CD pipeline and infrastructure automation, system reliability improvements, collaboration with engineering and product teams, architecture contributions, and mentoring. Requirements include 5+ years in software engineering or related roles, strong development skills in Python, Java, C#, Go or similar, experience with backend services, REST APIs, distributed systems, Linux, networking fundamentals, Docker, Kubernetes, CI/CD, Terraform, monitoring tools like Prometheus, Grafana, ELK, Sentry, strong troubleshooting and problem-solving skills, and fluent English. The position is full-time, hybrid based in Paris, France. Benefits include hybrid work model, learning and career development programs, health and wellness support, inclusive team environment, competitive salary with performance rewards, and potential equity.

What you'll do

  • Own feature delivery end-to-end, including requirements clarification, design, implementation, deployment, and operational support
  • Design, develop, review, test, and maintain scalable and reliable software services
  • Build and operate production systems with strong focus on availability, performance, observability, and security
  • Develop and maintain CI/CD pipelines, deployment automation, and Infrastructure as Code solutions
  • Improve system reliability through monitoring, automation, troubleshooting, incident management, and root cause analysis
  • Collaborate closely with engineering, infrastructure, and product teams to deliver resilient and maintainable solutions
  • Contribute to architecture decisions, operational excellence, and continuous improvement of development and infrastructure practices
  • Support and mentor team members by sharing knowledge and engineering best practices

Requirements

  • 5+ years of experience in software engineering, infrastructure, SRE, or related engineering roles
  • Strong software development skills using languages such as Python, Java, C#, Go, or similar
  • Experience building backend services, REST APIs, and distributed systems
  • Solid understanding of Linux systems, networking fundamentals (TCP/IP, HTTP, DNS), and production environments
  • Hands-on experience with Docker, Kubernetes, CI/CD pipelines, and Infrastructure as Code tools such as Terraform
  • Experience with monitoring and observability tools such as Prometheus, Grafana, ELK stack, Sentry, or similar
  • Good understanding of system reliability, scalability, automation, and operational best practices
  • Strong troubleshooting, debugging, and problem-solving skills with ownership mindset
  • Collaborative, proactive, and comfortable working independently in cross-functional environments
  • Fluent spoken and written English

Tech stack

PythonJavaC#GoActive DirectoryKerberosOIDCDockerKubernetesCI/CD pipelinesTerraformPrometheusGrafanaELK stackSentry

Benefits

Hybrid work model blending home and in-office experiencesLearning, mentorship & career development programsHealth benefits, wellness perks & mental health supportDiverse, inclusive, and globally connected teamAttractive salary with performance-based rewards and family-friendly policiesPotential for equity depending on role and level

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