IaaC: Chef(current), Ansible(~5mo), Puppet(1yr)
AWS: EC2, ELB, R53, Redshift, VPC, extensive Opsworks, etc all via Cloudformation templates
Logging/Monitoring/Alerting: Nagios, DataDog, Logstash, Splunk, VictorOps, PagerDuty, Pingdom, Site 24x7
Performance Testing: Blazemeter(1yr), jmeter a long time ago
Cloud Cost Modeling: AWS, no GCE, Azure, or Openstack experience.
Proficient in BASH, Intermediate Python, beginner Ruby (am currently studying due to chef and stack_master/sparkleformation usage)
Database: MySQL, Postgres, Redis
Caching: Memcached
Containers: Docker, Docker Compose, some Swarm usage, AWS ECS/ECR, currently studying/ramping up on Kubernetes for orchestration purposes
Collaboration: I've always had to interact with a variety of teams across the board, marketing, QA, data science, dev, ops, PM's, the nature of the role requires an ability to dissect and disseminate information with a diverse audience in mind.