Backend Software Engineer - USA Remote
About LaunchDarkly LaunchDarkly helps engineering teams release software and AI features with greater speed, safety, and control. Its platform supports gradual rollouts, targeted user experiences, experimentation, production monitoring, and risk management. The company is expanding beyond feature management into experimentation, observability, and AgentControl. Its SDKs support systems that perform trillions of feature flag evaluations each day, making reliability, performance, and developer experience central to its engineering work.
About the Role
LaunchDarkly is seeking a Software Engineer to join its SDK team and help develop and maintain the software development kits that customers use to integrate feature management into their applications. The role involves working across multiple programming languages and more than 35 SDKs. These SDKs require careful attention to performance, concurrency, resiliency, and the conventions of each supported technology. You will collaborate with engineering and product teams, contribute to open-source projects, and help shape technical decisions and product improvements. Key Responsibilities ● Develop and maintain SDKs across supported platforms and programming languages. ● Implement new features and improvements to meet customer performance and resiliency requirements. ● Collaborate with engineering and product teams to plan, implement, and release major features. ● Maintain and contribute to LaunchDarkly's open-source repositories. ● Identify opportunities to improve code quality, performance, and development practices. ● Advocate for engineering best practices and maintain high standards for production code. ● Contribute to technology and product decisions, including roadmap planning and prioritization. ● Stay current with evolving software development practices. ● Build and maintain tests, including unit, integration, and load tests, as well as performance benchmarks. Required Qualifications ● At least 5 years of experience with at least two of the following technologies: .NET, Go, Ruby, Python, Node.js, or Java. ● Demonstrable experience building libraries and packages used by other developers. ● A polyglot programming background, with the ability to switch between programming languages efficiently. ● Strong computer science fundamentals. ● Experience writing production-ready code with an emphasis on quality and maintainability. ● A strong testing background, including experience with unit testing, integration testing, load testing, and benchmarking. ● Experience contributing to open-source software. ● Strong communication and collaboration skills. ● A self-directed approach to problem-solving, with the ability to work independently on complex technical challenges. Preferred Qualifications ● Experience with C++, Erlang, Haskell, or Lua. ● Experience working with AI SDKs. ● Experience working with observability SDKs. ● Experience in mobile development. Work Arrangement This is a remote position. Team members have opportunities to visit LaunchDarkly's Bay Area office for team offsites. The SDK team works across Eastern and Pacific time zones. Salary and Benefits The target annual base salary for Level 3 varies by U.S. geographic pay zone: ● Zone 1 — San Francisco/Bay Area, New York City metropolitan area, Boston, and Seattle: $171,200–$235,400. ● Zone 2 — Irvine, Los Angeles, Monterey, Santa Barbara, Santa Rosa, Austin, Portland, Philadelphia, and Chicago: $154,100–$211,860. ● Zone 3 — All other U.S. locations: $145,500–$200,090. Compensation may vary depending on skills, experience, and location. In addition to salary, the package includes restricted stock units (RSUs), health, vision, and dental insurance, and mental health benefits. What You Can Expect at LaunchDarkly ● Work alongside experienced engineers specializing in SDK development and software engineering. ● Contribute to publicly visible open-source SDKs. ● Collaborate with other teams that use LaunchDarkly's own SDKs. ● Build experience across a range of programming languages and frameworks. ● Influence engineering roadmaps and feature prioritization. Equal Employment Opportunity LaunchDarkly is an equal opportunity employer that values a respectful, inclusive, and collaborative workplace. The company does not discriminate on the basis of race, religion, color, national origin, gender, gender identity