Senior SDK Software Engineer

About the Job: 

LaunchDarkly is the industry leader in Feature Flagging, and our mission is to empower teams with advanced functionalities like Experimentation, Migration Support, and Release Guardian through our expertly designed SDKs.

As a Senior Software Engineer on LaunchDarkly’s SDK team, you will play a pivotal role as a key contributor to the SDKs that serve as the backbone of our customers' experiences. With over 20 SDKs spanning diverse technologies, you will ensure they deliver unparalleled performance, resilience, and reliability. 

Our SDKs are more than just lightweight client libraries; they are feature-rich components optimized for performance, concurrency, and resiliency while adhering to idiomatic best practices for their respective platforms. By joining this team, you will contribute to shaping SDKs that power trillions of feature flags daily, driving meaningful and impactful outcomes for our customers and their users worldwide.

Responsibilities:

• Drive the design, development, and release of multiple LaunchDarkly’s SDKs across various programing languages and technology platforms
• Contribute to our open-source SDK projects, ensuring alignment with ecosystem best practices and organizational goals.
• Contribute to our Relay Proxy project, an important piece of performance enhancing software, to provide more efficient data transfer and flag availability for LaunchDarkly’s customer
• Identify and implement improvements in architecture, tooling, and processes to enhance SDK performance and maintainability.
• Stay at the forefront of technology trends, leveraging your deep expertise to advocate for and implement innovative solutions.
• Contribute to architectural decisions and collaborate with stakeholders across engineering and product teams to design scalable, innovative SDK features and functionalities that align with LaunchDarkly's long-term technical strategy, addressing complex integration challenges and ensuring seamless solutions for diverse developer use cases.

Qualifications:

• Polyglot background— fluent in 3 or more programming languages, preferably have experience with Go, with the ability to context switch between languages quickly.
• 8+ years of experience delivering production-grade, maintainable code.
• Strong foundation in computer science principles, including algorithms, data structures, and software design patterns.
• Excellent written communication skills with the ability to work across teams and advocate for technical solutions.
• Self‐starter and problem solver, willing to solve hard problems and work independently
• 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.

About LaunchDarkly:

Modern software delivery was supposed to be the foundation for a thriving digital business but reality has proven otherwise. Slow, inefficient development cycles, costly outages, and fragmented customer experiences are preventing developers from building their best software. The LaunchDarkly platform helps developers innovate on new features faster while protecting them with a safety valve to instantly rewind when things go wrong. Developers can target product experiences to any customer segment and maximize the business impact of every feature. And by gradually rolling out new application components, they escape nightmare "big-bang" technology migrations. 

The LaunchDarkly platform was built to guide engineers to the next frontier of DevOps by:

• Improving the velocity and stability of software releases, without the fear of end customer outages
• Delivering targeted experiences by easily personalizing features to customer cohorts
• Maximizing the business impact of every feature through the ability to experiment and optimize
• Coordinating the release and optimization of software to provide consistent experiences across mobile platforms and device types
• Improving the effectiveness and productivity of engineering teams, by providing insights into engineering cadence and stability

At LaunchDarkly, we believe in the power of teams. We're building a team that is humble, open, collaborative, respectful and kind. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity, sexual orientation, age, marital status, veteran status, or disability status. LD invites any applicant to review our written Affirmative Action Plan. To do so, contact People Ops at hr@launchdarkly.com. 

Learn more about the interview process & what it’s like to work with LaunchDarkly's Product Delivery team!

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