Backend Software Engineer, SDK

About the Job

As a Software Engineer on LaunchDarkly’s SDK team, you will build the primary touchpoint that our customers interact with on a daily basis. You’ll work with multiple technologies across our 35+ SDKs while enabling customers of all kinds to feature flag their code. When working on our SDKs, you’d be contributing to much more than thin client wrappers. Our SDKs are feature-rich agents with strong emphases on performance, concurrency, and resiliency -- all while following idiomatic practices for their tech stack.

LaunchDarkly serves trillions of feature flags daily to customers all around the globe, and every flag is handled by our SDKs. This team has a major impact not only on our company, but on our customers (and their customers). We are growing fast and we need your help writing the next chapter in our story.

• Contribute to development for SDKs in supported platforms:

  • Implement new features and improvements to meet customer performance and resiliency requirements

  • Keep up to date with the latest development practices

• Collaborate with our engineering and product teams to drive the implementation and release of major features

• Actively maintain our open-source repositories

• Identify areas of improvement and advocate for best practices

• Have an active voice in shaping both technology and product decisions

• Demonstrable experience building libraries and packages used by other developers

• Polyglot background with an ability to context switch between languages quickly

• 5+ years experience with at least two of the following: .NET/Go/Ruby/Python/NodeJS/Java

• Experience with the following is a plus:

  • C++/Erlang/Haskell/Lua

  • AI SDKs

  • Observability SDKs

  • Mobile development

• Strong computer science fundamentals

• Committed to working in a communicative, collaborative environment

• Self‐starter and problem solver, willing to solve difficult problems and work independently when necessary

• Strong testing background: experience building unit, integration, load tests, and benchmarks

• Experience writing production-ready code with emphasis on quality and maintainability

• Experience contributing to open-source software

• This is a remote role, with opportunities to visit the office in the Bay Area, California, for team offsites

• The SDK team is spread between Eastern and Pacific time zones

• You will work collaboratively with a team of highly experienced engineers who are amazing at the craft of engineering and building SDKs

• Your contributions will be publicly visible as the SDK team develops LaunchDarkly’s o