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Slim Souissi
FinOps Lead
đź“§ slim.souissi.pro@gmail.com
📍 Paris, Ile de France, FR
đź”— https://www.linkedin.com/in/slim-souissi-a54aa510b/
Professional Summary

I am a FinOps Lead & Cloud Engineer passionate about driving cost optimization, scalable cloud transformations, and technical excellence.
With 6+ years of experience, I help teams design and operate resilient, high-performing infrastructure while embedding a strong FinOps culture. I lead initiatives to optimize cloud spend, implement governance and automation, and mentor teams to become autonomous and efficient.
My focus is on bridging technical execution and financial accountability, ensuring innovation, performance, and cost efficiency go hand in hand.

Work Experience
Tech Lead | FinOps Lead
Société Générale | GCOO/RBS | January 2023 - Present
  • Led the cloud transformation of applications within the agencies’ perimeter, ensuring scalability, cost efficiency, and performance optimization.
  • Defined and executed FinOps strategy: rightsizing resources, tagging, implementing start/stop automation, and optimizing spend through Savings Plans and Reserved Instances.
  • Built cloud cost governance processes and dashboards for budgeting, forecasting, and variance tracking.
  • Drove adoption of FinOps culture by organizing awareness sessions, trainings, and enabling teams to take ownership of their cloud costs.
  • Implemented application and infrastructure observability: CloudWatch, Grafana, Prometheus, improving mean time to resolution (MTTR).
  • Conducted Infrastructure Resilience Exercises to meet DORA compliance requirements.
  • Automated infrastructure provisioning using Terraform, Vault, and Kubernetes, reducing deployment times and human error.
  • Mentored and coached interns and new hires, fostering a culture of technical excellence and autonomy.

Software Engineer
Société Générale | ITIM/CSR | March 2019 - December 2022
  • Designed and implemented an event-driven architecture on a hybrid infrastructure (AWS + On-Premises), ensuring scalability, reliability, and cost efficiency.
  • Developed REST APIs using Java & Spring Boot to support critical business services.
  • Automated infrastructure provisioning with Terraform, Jenkins, and Packer, reducing deployment times and operational costs.
  • Collaborated with AWS Support to select optimal services and configurations, enabling performant cloud solutions.
  • Built and maintained monitoring and alerting systems using Grafana, Prometheus, Spring Actuator, and CloudWatch to improve operational visibility and incident response.
  • Contributed to FinOps initiatives by tracking resource usage, optimizing infrastructure costs, and promoting efficient cloud practices within the team.
Data Engineer Intern
Société Générale | GTS | January 2016 - February 2017
  • Implemented a reporting dashboaard for infrastructure predictive maintenance.
  • Quering Datalake to extract data with pyhton and PySpark
  • Displayed data in an angular application
Certifications
  • HashiCorp Certified: Terraform Associate - 2025
  • FinOps Certified Engineer - 2024
  • Professional Scrum Master - PSM1 - 2022
  • AWS Certified Solutions Architect – Associate - 2021
Technical Skills
Programming Languages
Java 11+
TypeScript
SQL
HCL
Groovy
Technologies & Frameworks
Spring Boot
Kubernetes
Terraform
Vault
Node.js
Docker
AWS
Grafana
Prometheus
MongoDB
Helm
Redis
PostgreSQL


Usine de développement
Maven
NPM
Jenkins Pipelines
GitHub Actions
Nexus
Sonar
Méthodologies & Outils
Agile/Scrum
CI/CD
Git/Github
Jenkins
JIRA
DDD/Hexagonal