Sr. Site Reliability Engineer

Sr. Site Reliability EngineerLength: 12+ Month contractLocation: 6380 S Fiddlers Green Cir, Greenwood Village, CO 80111Onsite Requirements: while on contract – a few times a week until ramped up then can do once or twice a monthProject Scope/Roadmap:Configuration Management Team is an internal experimentation and A/B testing platform that is implemented across all of Charter’s customer platforms and tools. This tool helps teams validate their releases so it doesn’t impact the customer experience negatively, and also ensures that enhancements being made to the products are truly moving the needle in a positive direction for the customer.This team also owns all the back end for TDCS (Targeted Delivery Client Services) Platform which is a real time configuration management tool used throughout all of Charter’s client facing platforms (streaming apps, customer web portals, etc.). All applications use this tool to deliver client specific experiences. The platform can target specific customers, markets, etc. to run experiments or conduct testing in order to control variants.This role specifically will be focused on supporting TDCS. They're moving everything to their own AWS account to help better manage their own releases and must maintain the availability and latency. This platform is crucial to all customers' ability to access streaming/video as it's called on at least twice a day from every application.Must Haves:6+ years of DevOps experience within large, complex environments. Ideally comes from a development background (able to read code and work alongside the developers).AWS and TerraformKubernetesGitlab or similar CI/CD tools for pipeline deploymentDatadog or similar monitoring toolsTeam/Environment:Team of 7 engineers and 1 leadJob Description:The applied AI and data science program at Charter brings together data scientists, data engineers, and software engineers in close collaboration to empower Spectrum employees to safely release and test product changes and understand the impact on customers. Join us to build technology that enables Charter’s product teams to deliver high-quality experiences across streaming video, broadband internet, and mobile services.As a Senior SRE Engineer in the applied AI and data science program, you’ll help deploy, monitor, support, and optimize software solutions that expand Charter’s custom experimentation and configuration management platforms. You’ll work with cloud-based applications and resources hosted in AWS. The applications and services are written using Node.js, React, and Python, the infrastructure uses Terraform, and GitLab is used to manage the deployment pipelines.The CMX team is responsible for enhancing and supporting Charter’s custom, enterprise-level experimentation and configuration management platforms. We facilitate experimentation and configuration management through web-based UIs and supporting services that enable users to draft and deploy A/B tests, progressive deployments, and JSON configuration changes.Responsibilities:Release Management Build and deploy application, service, and infrastructure releasesValidate system operation and integrity post-deploymentDocument release notesProduction Support Maintain 99.999% availability of critical production systemsEnsure infrastructure and applications run smoothlyKeep infrastructure resources updatedOn-call for production outage and incident responsePerform root cause analysis for all production outages and incidentsMonitoring and Alerting Apply monitoring and alerting policies to every system and provide recommendationsBuild and expand monitoring dashboardsMonitor and log errors, bugs, and unexpectant behaviorMonitor system efficiency including latency and resource consumptionMonitor for system degradation, pre-empt or mitigate as possibleAlert the appropriate people when monitoring detects operations outside of expected SLAsOptimization Manage resource scaling to align with project goalsOptimize resource usage and system behaviorTeam Participation Assist with user supportBecome the resident expert of the system architecture, deployment pipelines, and resource utilizationCoordinate efforts with onshore and offshore teammatesDevelop bug fixesPrimary Qualifications:Expertise using monitoring tools such as DataDog and/or SplunkExperience with AWS infrastructure and services (e.g. EKS, S3, DocumentDB)Experience working with containerized microservice and web-based applicationsProficient with the AWS console and Infrastructure as Code (e.g. Terraform)Experience benchmarking and performance testingExperience deploying cloud-based applicationsFamiliarity with Git-based source control and branch management (e.g. GitLab)Bachelor’s degree in a related field or equivalent experienceSecondary Qualifications:6 or more years of professional experience with the software development lifecycleFamiliarity with Python, Node.js, React, TypeScript, and GraphQL