Senior Software Engineer - Realtime Infrastructure

The Realtime Infrastructure team is responsible for building and maintaining some of Discord’s highest scale and most critical services. Those systems are at the core of our text chat infrastructure and facilitate the dispatching of every update to our users sessions. This role will have a significant impact on Discord’s overall reliability and performance. It will also help our product teams build new features on top of our infrastructure. This team is small but critical, and its work has a direct impact on Discord's success and ability to scale. This role reports to the Senior Engineering Manager of Realtime Infrastructure.

Examples of technical challenges that this team has encountered in the past include supporting the dispatch of more than 30 million messages per second, or building the infrastructure that allows Discord Servers to grow their communities to more than 20 million users, such as Midjourney.

You will

• Build and operate large-scale, reliable and performant distributed systems.
• Collaborate with product teams to create new features.
• Ensure Discord “ just works” .
• Write code but also manage our infrastructure.
• Work with a talented team of engineers who have built one of the largest communication platforms in the world.

You have

• 5+ years of experience writing and designing backend systems.
• Experience solving complex distributed system problems.
• Experience operating and maintaining critical tier 0 services.
• Knowledge of monitoring and alerting best practices.
• Familiar with open source software, and not afraid to dig into the source code of a library to find the answer you’re looking for.
• Led complex projects in a team of junior and senior engineers.

Bonus Points

• Experience with Elixir.
• Experience working with systems deployed in a cloud environment (GCP, AWS, etc.)
• Knowledge of devops tools like Salt,Terraform or k8s.
• You have built or contributed to open source projects.
• You are a Discord power user and have built bots or apps interacting with our platform.

Things that may interest you

• Our tech stack is Elixir, Python and Rust.
• Our systems are deployed in Google Cloud.
• Our team uses a lot of open source technologies, and contributes back too:
  - sempahore
  - instruments
  - sorted_set_nif
  - dispenser
  - erlpack
• Being one of Discord’s oldest teams, we’ve written quite a few blog posts through the years:
  - How Discord reduced websocket traffic by 40%
  - Maxjourney: Pushing Discord’s Limits with a Million+ Online Users in a Single Server
  - Why and How Discord Uses Patch to Test Elixir
  - Using Rust to Scale Elixir for 11 Million Concurrent Users
  - How Discord Scaled Elixir to 5,000,000 Concurrent Users
  - How Discord handles push request bursts of over a million per minute with Elixir’s GenStage

#LI-Remote

The US base salary range for this full-time position is $183,000 to $201,500 + equity + benefits. Our salary ranges are determined by role and level. Within the range, individual pay is determined by additional factors, including job-related skills, experience, and relevant education or training. Please note that the compensation details listed in US role postings reflect the base salary only, and do not include equity, or benefits.