Senior Software Engineer, Database Infrastructure

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Slack enables people all over the world to communicate and collaborate together. Teams of all scales — from the world’s largest public companies to the smallest of startups — use Slack to get work done, so we take performance and reliability very seriously.

A taste of our scale:  5 billion+ messages are sent per week, half of those outside the United States    Every day we see over 10M+ daily active users, 30+ billion web requests, and 200+ billion database queries.

For millions of people, Slack is the primary communication tool they use at work all day long. They expect it to be exceptionally reliable and fast, all the time.

Core Infrastructure at Slack We operate at tremendous scale with systems that process millions of events per second. Teams in our group maintain and build the lower levels of our stack,including:  Edge services    Data Stores and Caches     Real-time messaging    Asynchronous background job processing

Slack's API and web backend is built onPHP/Hack, our backend services are written in Java and Go, and we use Vitess as our storage engine. Our architecture is constantly evolving to handle millions more users. You can read about how we scaled our data stores with Vitess, how we respond to incidents, and much more on our blog.

If you were to join Slack, here the types of things you would do over the course of a typical week:  Operate and enhance our large, highly-available database infrastructure, utilizing technologies such as MySQL and Vitess.
Develop tools to enable self-service and self-managing capabilities of our database infrastructure so that other teams can operate full-stack while rapidly building new features for our customers.
Collaborate with engineering teams on their database storage needs, and advise them throughout the development lifecycle.
Write code to capture database performance, and create tools and dashboards to provide actionable insight into that data.
Participate in our on-call rotation and collaborate with our operations team to triage and resolve production issues.
Support FedRAMP and DoD SRG activities.

You may be a fit for this role if you:  Have been working in data storage, core infrastructure, or distributed system-owning teams with increasing responsibilities for 5+ years.
Have professional experience using Go, PHP/Hacklang, Python, Ruby, or Java.
Write code that can be easily understood by others with an eye towards clarity and maintainability. Collaborate with other teams to integrate new features of your platform or adopt self-service features.
Operated at least one distributed system, at scale and in a team environment. Some examples include: a relational database like MySQL/Postgres, or systems like Kafka, Cassandra, or Elastic Search.
Deployed server software on Linux, and then operated it ’ve debugged its problems, and analyzed and optimized its performance.
Have experience operating cloud infrastructure, especially AWS.
Are familiar with deployment automation/configuration management tools like Chef, Terraform, Ansible, or Puppet.
Are a very strong communicator. You’re excited to explain complex technical concepts and share your knowledge with different audiences.

Core Infrastructure is a diverse and inclusive team that treats their colleagues exceptionally well. We are happy to help you learn what you need to know; we encourage and support each other’s growth and thus it’s not expected that you would have expertise across all of these areas.

Come join us!

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