LaunchDarkly
Backend Software Engineer, SDK
$146K–$235K
Remote - US +1 · Remote · Full-time · Posted Oct 19, 2026
- Location
- Remote - US
Oakland, California, United States - Experience
- 5+ years with at least two of .NET/Go/Ruby/Python/NodeJS/Java.
About the job
Build and maintain LaunchDarkly’s developer-facing SDKs, improving their features, performance, resiliency, and release quality.
What you'll do
- Develop SDKs for supported platforms, including new features and performance and resiliency improvements.
- Collaborate with engineering and product teams on major features; maintain open-source repositories.
- Identify improvements, promote best practices, and contribute to technology and product decisions.
What they ask for
- Demonstrable experience building libraries and packages used by other developers.
- Polyglot background and ability to switch quickly between languages.
- 5+ years of experience with at least two of .NET/Go/Ruby/Python/NodeJS/Java.
- Strong testing background, including unit, integration, load tests, and benchmarks.
Nice to have
- Experience with C++/Erlang/Haskell/Lua, AI SDKs, observability SDKs, or mobile development.
- Experience contributing to open-source software.
Pay
$171,200 - $235,400 USD base salary; $154,100 - $211,860 USD base salary; $145,500 - $200,090 USD base salary
Tools
.NET, Go, Ruby, Python, NodeJS, Java, C++, Erlang
Model-written summary · the original posting is authoritative