Sr. Site Reliability Engineer (38660)

The next generation of our products are delivering engaging, adaptive, and personalized learning experiences to optimally support every learner. We are hiring a Sr. Site Reliability Engineer who will work with system and software engineers to build reliable, high capacity and high-performance systems in support of our mission to reimagine learning for millions of students and learners worldwide. If you understand the infrastructure in the AWS inside out, have significant Linux admin and networking experience, and love solving problems by writing code, you will thrive in this position. This position will be located at our Boston, MA .

As a Sr. Site Reliability Engineer, you will help design, analyze and resolve issues with infrastructure in collaboration with product development teams; you will design, deploy and manage automation tools that increase predictability as well as time to market while reducing cost.

Your contribution to the team includes:

● Hands-on design, analysis and troubleshooting of highly-distributed large-scale production systems;

● Ownership of reliability, uptime, capacity, and performance analysis thereof

● Ensuring the repeatability, traceability, and transparency of our infrastructure automation

● Identifying highest-impact opportunities to optimize existing systems

● System design consulting for teams seeking to leverage or improve their production infrastructure

● Anticipate, build and plan capacity for upcoming product/feature launches

What you’ll need to be successful:

● Strong skills in reading, understanding and writing code in Javascript, Python, PHP, Go, or Ruby;

● Strong network engineering skills;

● Mastery of infrastructure automation technologies (like Terraform, CodeDeploy, Puppet, Ansible, Chef)

● Expertise in container/container-fleet-orchestration technologies (like Docker, Vagrant, Mesosphere, etcd, Zookeeper);

● Cloud and container native Linux administration/build/management skills (AWS AMIs, Packer, etc.);

● Significant experience troubleshooting concurrent and distributed system interactions;

● Expertise with continuous-deployment software development lifecycles in the Cloud (e.g. CI/CD);

● Cloud database operations and deployment experience (RDS MySQL/Postgres/Aurora), caching operations & deployments (Memcache, Redis);

● Expertise with Lean/Agile deployment processes (Blue/Green, ZDT, Canary, load balancers/DNS strategies);

● Ability to design and manage escalation response plans from monitoring, react, respond, remediate and retrospect in culturally aligned (proactive, customer focused, collaborative, data-driven) ways;

● Familiarity with site and infrastructure monitoring systems (like Datadog, New Relic, Sumologic);

● Strong problem solving, root cause analysis and systems engineering skills;

● Excellent presentation and communication skills;

● Demonstrated expertise building and managing highly scaled production infrastructure in the cloud (AWS required; GCP, Azure, OpenStack a plus);

● Mastery of AWS services (IAM, EC2, S3, EBS/EFS, ELB/ALB, AutoScaling, RDS and replication techniques, VPC, Subnets, Elastic IP, Route53, CloudWatch, CloudFront, Lambda, CloudFormation, ECS, SNS, ElastiCache);

● Expertise with SDLC branching, SCM, and code deployment systems (Git/Gitflow, Jenkins, CircleCI, TravisCI, etc.);

● BS Degree in Computer Science (or related technical field and/or equivalent industry experience).