> Markdown version of [/jobs/ext/4202046-backend-software-engineer](https://www.wearedevelopers.com/jobs/ext/4202046-backend-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Software Engineer - **Company:** Greenhouse Software, Inc. - **Location:** San Francisco, CA, United States (Remote available) - **Experience:** Expert - **Salary:** $171,200.0 - $235,400.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, C++ (Programming Language), Mobile Application Development, Python (Programming Language), Lua (Scripting Language), Node.Js, Open Source Technology, Ruby, Erlang, Production Code, Free and Open-Source Software, Glasgow Haskell Compiler, Programming Languages - **Published:** October 20, 2026 - **Apply:** https://job-boards.greenhouse.io/launchdarkly/jobs/8015117003 ## About the Role * 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 ## Description * 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, * 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 open-source SDKs in public * LaunchDarkly uses our own SDKs. You will have opportunities working with the other teams within LaunchDarkly * In this role, you can learn about many programming languages and frameworks * You will have opportunities to strongly influence roadmap and prioritization