Principal Site Reliability Engineer
Sigma Software GroupSão Paulo, Brazil
Posted February 23, 2026
Full Time
About the Company
Sigma Software is partnering with a fast-growing AI-driven SaaS platform serving finance and accounting teams in high-growth businesses.
Job Description
We are looking for a Principal Site Reliability Engineer to lead infrastructure strategy for a cutting-edge AI-driven SaaS platform. This senior role offers the opportunity to shape the reliability and performance of a platform used by finance teams worldwide.
Requirements
- At least 8 years of experience in Site Reliability Engineering or DevOps roles
- 2+ years in a Principal or Lead position
- Proven experience in infrastructure modernization and scaling initiatives for high-growth environments
- Strong proficiency in Python
- Deep expertise in cloud platforms and container orchestration tools such as AWS ECS and EKS
- Solid experience in CI/CD pipeline design and optimization using tools like GitHub Actions and Buildkite
- Proficiency in infrastructure-as-code tools such as Terraform
- Strong knowledge of monitoring, observability, and performance optimization practices
- Upper-Intermediate level of spoken and written English