Senior Cloud Engineer

• Design and manage AWS cloud infrastructure with a focus on reliability, security, and performance.
• Write and maintain infrastructure as code using Terraform, ensuring environments are reproducible, version-controlled, and well-documented.
• Own and improve GitLab CI/CD pipelines, working closely with development teams to streamline build, test, and deployment workflows.
• Drive cloud cost optimization initiatives and establish best practices across the organization.
• Mentor junior engineers and contribute to architectural decisions.
• Proactively identify and resolve infrastructure bottlenecks and security gaps.
• 5+ years of experience in cloud engineering or a related infrastructure role.
• Deep hands-on expertise in AWS – including EC2, ECS/EKS, RDS, S3, IAM, VPC, CloudWatch, and Lambda.
• Proficiency in Terraform, including module design, state management, and environment promotion.
• Solid experience building and maintaining CI/CD pipelines with GitLab.
• Strong scripting skills in Bash or Python.
• Familiarity with containerization using Docker and Kubernetes.
• Strong communication skills with the ability to work autonomously and take ownership of complex problems.
• Ability to work on shift.
• Experience with AWS security tooling: GuardDuty, Security Hub, AWS Config.
• Knowledge of observability stacks such as Prometheus, Grafana, or Datadog.
• AWS Solutions Architect or HashiCorp Terraform Associate certification.
• Experience with multi-account AWS Organizations setups.
• Knowledge of Azure

For information

• Start date : 01/09/2026
• Location : Lausanne - CH
• Duration : permanent contract
• Language : fluent in English, German or French are a plus

At SII Switzerland, we stand out for our strong collaborative culture and recognized expertise in IT consulting and engineering services, supporting our clients in their digital transformation and innovation projects.

With a presence across three offices in Geneva, Lausanne, and Zurich, and a workforce of around 70 consultants, our teams contribute every day to creating a work environment that is stimulating and development-oriented, where expertise, teamwork, and initiative are valued.

For the third consecutive year, SII Switzerland has been certified Great Place To Work and ranked among the Best Workplaces in "Suisse Romande", demonstrating our strong commitment to our employees and the quality of our practices.

True to our human-centered values, we are committed to supporting continuous learning and building strong relationships with our local ecosystem and partners.

Joining SII Switzerland means taking part in a collective adventure guided by our promise “Let’s Tech Together,” and helping to build a technological future that is innovative, sustainable, and responsible, at the heart of an environment that values autonomy, collaboration, and professional growth.

At SII Switzerland, we stand out for our strong collaborative culture and recognized expertise in IT consulting and engineering services, supporting our clients in their digital transformation and innovation projects.

With a presence across three offices in Geneva, Lausanne, and Zurich, and a workforce of around 70 consultants, our teams contribute every day to creating a stimulating, development-oriented work environment where expertise, teamwork, and initiative are valued.

For the third consecutive year, SII Switzerland has been certified as a Great Place To Work and ranked among the Best Workplaces in "Suisse Romande", demonstrating our strong commitment to our employees and the quality of our practices.

True to our human-centered values, we are committed to supporting continuous learning and building strong relationships with our local ecosystem and partners.

Joining SII Switzerland means taking part in a collective adventure guided by our promise “Let’s Tech Together,” and helping to build a technological future that is innovative, sustainable, and responsible, at the heart of an environment that values autonomy, collaboration, and professional growth.