[S3NS] Finops Engineer GCP (H/F)

About the Role

This role sits within S3NS’s FinOps function and is focused on controlling internal cloud spend while providing financial support for customer accounts. It supports a cloud offering equivalent to Google Cloud Platform services, including IaaS and PaaS, and aligned with SecNumCloud requirements. The work is structured around the three core FinOps pillars: Information, Optimization and Industrialization. A maturity framework is also part of the scope, with the goal of driving continuous improvement across cost visibility, optimization and governance. You will work closely with Finance, Tech, architects and Business Units to strengthen cloud cost control, improve reporting and support better financial decision-making.

Key Responsibilities

• Implement rigorous tagging and labelling practices to ensure full visibility into cloud spend.
• Build and maintain Looker dashboards for different Business Units.
• Track cost movements and identify consumption anomalies in real time.
• Detect underused or orphaned resources, such as idle instances and unattached storage volumes.
• Recommend purchasing strategies including Reserved Instances, Savings Plans and Spot instances.
• Partner with architects to improve resource sizing through rightsizing.
• Lead steering committees between Finance and Tech.
• Define KPIs such as unit cloud cost per transaction or per user.
• Set budgets and alerting mechanisms to support accountability for application owners.
• Support internal spend control and financial support for customer accounts.
• Contribute to the deployment of a maturity framework and continuous improvement plans.

Required Skills

• Bac+5 degree from an engineering or computer science school.
• Strong interest in financial management.
• At least 5 years of experience in a similar role.
• Strong command of raw GCP billing data analysis using BigQuery and SQL.
• Experience working with data in a web environment using visualization and data manipulation modules with Node.js and React.

Preferred Skills

• FinOps certification.

Cloud Platforms & Technologies

Cloud Providers

• Google Cloud Platform (GCP)
• Google Cloud Platform services (IaaS and PaaS)

Data & Analytics

• BigQuery
• Looker

Programming Languages / Web Technologies

• SQL
• Node.js
• React

FinOps Responsibilities

• Improve cloud spend visibility through tagging and labelling.
• Produce cost reporting dashboards for business stakeholders.
• Analyze cost variations and identify usage anomalies.
• Identify optimization opportunities across idle, unused or orphaned resources.
• Recommend commitment-based purchasing options, including Reserved Instances and Savings Plans.
• Use Spot instances where appropriate.
• Work with architects on rightsizing and resource optimization.
• Run governance reviews between Finance and Tech.
• Define unit cost KPIs and implement budgets and alerting.
• Support both internal cloud spend management and customer account financial support.
• Drive continuous improvement through a maturity framework.

Why You Might Be Interested

This role combines FinOps, cloud governance and financial analysis in an environment tied to Google Cloud Platform services and SecNumCloud requirements. It offers responsibility for both internal spend control and customer account support, with direct collaboration across Finance, Tech and architecture teams. The position also provides hands‑on work with GCP billing data, BigQuery, SQL, Looker, Node.js and React.