Sr DBA for our San Francisco or Chicago office

I’m looking for a good DBA, preferably with strong Postgresql, but solid experience in other RDBMS and desire to learn Postgresql may be a good substitute.
The position is a production Sr DBA with operational as well as development responsibilities. Strong skills in AWS are desirable.
Below is the job description. Please note that it is not a purely Postgres position. We also use Redshift, DynamoDB, and very little MySQL.
We are looking for somebody authorized to work in the USA.
If interested, please respond directly to my e-mail.

Thank you
Igor Polishchuk
Database Architect
PowerReviews

PowerReviews delivers software that more than 1,000 brands and retailers utilize to collect, display, and syndicate reviews on more than 5,000 websites. An essential resource for consumers as they search and shop online and in-store, reviews drive traffic, increase sales, and create actionable insights to improve products and services. With a syndication network that reaches more than 500 million in-market shoppers each month, PowerReviews delivers more reviews to more consumers. And we make it easier than anyone else.
We are growing our database operations team and looking for a Database Administrator to manage, optimize, and scale multiple database instances within our infrastructure. You should have experience planning and configuring production databases for mid and large-scale enterprise systems. You must be passionate about automation, testing, and ensuring the quality and timely delivery of your work. This position requires regular on-site interaction with the engineering team in our Chicago and San Francisco offices.
The position involves managing Postgresql, Redshift, and some MySQL and DynamoDB databases in a datacenter and cloud. Eventually the responsibilities may extends to managing other SQL and NoSQL based solutions.

Key Accountabilities:
Application support - execute database changes as requested by the Engineering or Customer Success organizations, participate in release and maintenance events, respond for pages triggered by monitoring
Planning and configuration - pro-actively manage database instances to accommodate for growth and scale
System Optimization - monitor and optimize system performance, schema change management, query analysis, authoring tools for databases automated deployment and management
Availability - proactively ensure maximum uptime and implement proper safeguards for backup, replication, and recovery
Security - define and implement user privileges and data access controls
Leadership - make suggestions on optimizing the database architecture and database related processes, creating and documenting best database practices, knowledge sharing with other DBAs
Evangelism - help engineers efficiently utilize the database using best practices
Documenting daily operational processes
Requirements
A Bachelor's degree in Computer Science or equivalent experience
Demonstrable senior level experience managing Postgres, Oracle or MySQL
Experience with high throughput databases 1TB+ in size
Solid experience with shell in addition to Ruby or Python, SQL query writing and strong database performance optimization skills
Solid experience with Unix environments, understanding of Unix performance and system capacity metrics, Unix and I/O system configuration for the best performance, understanding of networking
Strong attention to detail, good communications skills, and a positive attitude
Self motivation and delivering projects on time with minimal or no supervision
Ability to learn quickly
Must be authorized to work in the U.S.
Preferred Skills
Experience with Postgresql replication solutions, trigger based and streaming
Amazon AWS: Ec2, S3, CloudFormation, Redshift
Puppet, git
Experience with MySQL, AWS RDS, DynamoDB, AWS EMR, Redshift.