Site Reliability Engineer - SRE - Lille

About the company

Sopra Steria, a major player in Tech in Europe, with 51,000 employees in nearly 30 countries, is recognized for its consulting, services, and digital solutions activities. It helps its clients lead their digital transformation and achieve concrete and lasting benefits. The Group provides a global response to the competitiveness challenges of large companies and organizations, by combining deep knowledge of business sectors and technologies with a collaborative approach. Sopra Steria places people at the heart of its actions and is committed to its clients to make the most of digital technology to build a positive future. In 2025, the Group achieved a turnover of 5.6 billion euros.

Within the Digital Platform Services entity, you will join the Lille agency composed of 75 employees as well as a team at a major client in a stimulating environment.

Your tasks

You will join a team of Cloud & Platform Engineering experts within a major client in the Retail sector. In a context of strong growth in digital usage and very high-volume environments, you will intervene at the heart of the challenges of reliability, performance, automation, and observability of critical platforms.

You are joining a modern organization oriented towards Cloud Native, where the SRE culture is fully integrated into the infrastructure, platform, and development teams in order to guarantee the availability and resilience of services.

Within a dynamic and multidisciplinary team, you will participate in the construction and continuous improvement of the technical platforms that support millions of transactions and users.

You will be supported by a dynamic team that will involve you actively in the project as a whole.

Your role and missions You are part of an SRE team in charge of the reliability, performance, and observability of Cloud platforms.

You guarantee the availability and resilience of the platforms:

• You ensure the maintenance of critical infrastructures in operational conditions.
• You define and implement SRE best practices to improve service availability.
• You participate in major incident management, post-mortem analyses, and the reduction of operational risks.
• You contribute to the definition and monitoring of SLI, SLO, and SLA.

You develop system observability

• You design and improve monitoring and observability solutions.
• You operate and optimize Datadog platforms in very high-volume environments.
• You implement OpenTelemetry standards to improve the collection and analysis of metrics, logs, and traces.
• You support project teams in the industrialization of their supervision practices.

You automate and industrialize infrastructures

• You develop and maintain Infrastructure as Code through Terraform.
• You automate deployments and recurring operations with Ansible, AWX, and associated tools.
• You participate in the continuous improvement of deployment pipelines and operational processes.
• You are a source of proposals on automation and operational optimization topics.

You support technical teams

• You work in close collaboration with development, operations, and architecture teams.
• You participate in technical choices related to the platform and service reliability.
• You contribute to the dissemination of SRE culture within the teams.
• You perform continuous technological monitoring around Cloud Native and Observability practices.

Requirements

Cloud & Infrastructure

• Google Cloud Platform (GCP)
• Kubernetes (advanced level)
• Terraform
• Ansible
• AWX / Automation Platform

Observability

• Datadog
• OpenTelemetry

Development & Automation

• Python
• Go (appreciated)

Methodologies

• SRE
• Agile / Scrum
• DevOps
• Infrastructure as Code

Your profile With higher education in computer science, you have solid experience in Cloud and SRE environments.

You notably possess

• At least 6 years of experience in Cloud and infrastructure environments.
• Significant experience as a Site Reliability Engineer.
• At least 3 years of experience in observability and monitoring topics.
• Advanced expertise in Kubernetes.
• Excellent mastery of GCP.
• Strong Datadog experience in high-traffic environments.
• Good mastery of OpenTelemetry.
• Solid skills in Terraform and Ansible/AWX.
• Development or scripting skills (Python indispensable, Go appreciated).

You have an excellent analytical mind, are problem-solving oriented, and appreciate demanding environments with high availability stakes.

Fluent English is indispensable to evolve in an international context.

Solid SRE experience is the true entry ticket for this post

What we offer

What we offer you

• A teleworking agreement to telework up to 2 days per week depending on your missions.
• An attractive benefits package: health insurance, a CSE, restaurant vouchers, profit-sharing, holiday and referral bonuses.
• Multiple career opportunities: more than 30 job families, as many gateways to imagine together.
• Hundreds of training courses to develop your skills and evolve within the Group.
• Self-paced training platforms to prepare for your certifications and support your personal development.
• The possibility to get involved with our foundation or our partner "Vendredi".
• The opportunity to join the Tech'Me UP collective (training, conferences, monitoring, and much more...)

Other

The world is how we shape it For more information, find us at www.soprasteria.com/fr Sopra Steria Infrastructure & Security Services is the Sopra Steria subsidiary dedicated to infrastructure, cloud, and cybersecurity activities. It is a key player in Sopra Steria's end-to-end offering. With its 3,000 employees, Sopra Steria I2S distinguishes itself by the flexibility of its delivery model, which combines client proximity from our 8 agencies with the advanced industrial capabilities of our offshore service centers. Ready to take on the challenge with us?

Job description The opportunity to seize!

Additional information An inclusive and committed employer, our company works every day to fight against all forms of discrimination and promote a respectful working environment. This is why, committed to diversity and inclusion, we encourage all applications and all profiles.