Senior Infrastructure Engineer, SRE

Summary

Join Flex, a NYC-based FinTech company revolutionizing rent payments, as a Senior Infrastructure Engineer. You will be a key member of a small team responsible for building and maintaining a scalable and reliable infrastructure on AWS and GCP. This remote role requires at least 5 years of cloud infrastructure experience and proficiency in technologies like Terraform, Kubernetes, and CI/CD. You will collaborate with service engineering teams, automate processes, and ensure optimal system performance. Flex offers a competitive compensation package, including comprehensive health insurance, 401k, unlimited PTO, and parental leave.

Requirements

• Proven experience in building, scaling and monitoring cloud infrastructure on AWS, especially EKS, S3, RDS, API Gateway, Load Balancers, VPC, Lambdas, DocumentDB and DynamoDB
• Proven experience using Terraform to update and maintain cloud infrastructure
• Proven experience with containerized applications, kubernetes and microservice deployments
• Strong knowledge of GitHub Actions and CI/CD best practices
• Experience with developer productivity tools: designing CI/CD workflows, building internal tools, and creating self-service solutions to streamline software development
• Knowledge of monitoring and observability tools and frameworks, with working knowledge of Datadog being a plus
• Familiarity with networking concepts (DNS, load balancing, firewalls, VPNs)
• Strong collaboration skills with the ability to work effectively across teams and communicate technical ideas clearly
• Experience coding/reading in one of the industry standard language such as Java, Python, TypeScript
• Minimum of 5 years of cloud infrastructure experience

Responsibilities

• Collaborate with service engineering teams to design, implement, and maintain scalable and resilient infrastructure solutions optimizing for performance, resilience, and cost
• Ensure infrastructure aligns with business requirements and industry standards
• Leverage Terraform to automate infrastructure provisioning and configurations
• Implement SRE principles to improve system reliability and reduce downtime
• Improve developer workflows by creating self-service tools, optimizing CI/CD pipelines, and enhancing deployment processes to remove friction
• Develop and maintain robust monitoring and alerting systems to proactively identify and resolve issues
• Lead incident responses, manage on-call rotations, and facilitate post-incident reviews to drive continuous improvement and resilience
• Automate everything—drive adoption of Infrastructure as Code (IaC) and build automated pipelines for testing, monitoring, and deployments
• Leverage your excellent written and verbal communication skills, to create communications on upcoming changes and how they affect teams

Benefits

• Competitive pay
• 100% company-paid medical, dental, and vision
• 401(k) + company equity
• Unlimited paid time off with a PTO minimum + 13 company paid holidays
• Parental leave
• Flex Cares Program: Non-profit company match + pet adoption coverage
• Free Flex subscription
• Competitive Pay
• Company Equity
• Unlimited PTO