Fullstack Engineer, Mobile Observability

Summary

Join LaunchDarkly's Observability team as an experienced Full Stack Engineer to build intuitive interfaces and robust instrumentation systems for mobile application monitoring, analysis, and debugging. You will develop user-friendly UIs for visualizing telemetry data, build and maintain React Native SDKs for efficient data collection, and collaborate with cross-functional teams. The role involves prototyping, optimizing APIs, and participating in architecture planning and code reviews. You will contribute to improving engineering standards and mobile performance metrics. This position offers the opportunity to work on cutting-edge telemetry solutions and contribute to a team focused on enhancing mobile observability.

Requirements

• 5+ years of experience developing full stack web applications
• Familiarity with telemetry frameworks (OpenTelemetry, Firebase Performance Monitoring, Sentry, Datadog Mobile) and integrating observability features in mobile apps
• Strong experience developing performant mobile APIs, network optimizations, and efficient client-server data exchange techniques
• Experience utilizing AI tooling to enhance daily engineering efficiency
• Ability to design robust, scalable systems and deep familiarity with algorithms, data structures, and concurrency principles specific to mobile environments
• Strong collaboration, communication, and problem-solving skills; committed to continuous learning about emerging technologies and mobile best practices

Responsibilities

• Design and implement mobile telemetry SDKs, instrumentation libraries, and developer tools in React Native or similar frameworks
• Develop performant, scalable mobile applications for visualizing and interacting with real-time telemetry data
• Collaborate cross-functionally with UX designers, product managers, backend engineers, and native mobile developers to create cohesive, end-to-end observability experiences
• Prototype, build, and optimize APIs and mobile-specific data pipelines to handle high-volume data ingestion efficiently and reliably
• Participate actively in architecture planning, code reviews, and mentoring peers in mobile full-stack best practices
• Drive improvements in engineering standards, tooling, and mobile performance metrics across LaunchDarkly

Preferred Qualifications

• Familiarity with React Native (or similar cross-platform frameworks such as Flutter or Xamarin) is a plus
• Familiarity with the LaunchDarkly product and SDKs is a plus

Benefits

Restricted Stock Units (RSUs), health, vision, and dental insurance, and mental health benefits in addition to salary