Backend Engineer (Flag Delivery)

Join LaunchDarkly as a Backend Software Engineer on the Flag Delivery team. In this role, you will build and improve backend services that power LaunchDarkly's Flag Delivery systems, debug production issues, and collaborate closely with partner teams. You should have 5+ years of backend software engineering experience, strong programming skills in Go, Java, Rust, or a similar backend language, and a willingness to participate in on-call and production support.

• Construire, améliorer et exploiter les services backend qui alimentent les systèmes de livraison de drapeaux de LaunchDarkly.
• Contribuer aux systèmes qui prennent en charge les modèles de livraison en streaming et de polling pour les SDK de LaunchDarkly.
• Déboguer les problèmes de production, améliorer la fiabilité du service et aider l'équipe à maintenir des normes élevées en matière de latence, de disponibilité, d'observabilité et d'opérabilité.
• Ability to reason clearly about code, architecture, and system behavior
• Familiarity with distributed systems fundamentals such as caching, concurrency, failure modes, and reliability
• Clear, existing AI usage in engineering work
• Strong programming skills in Go, Java, Rust, or a similar backend language; today the team primarily uses Go, with some Rust in the broader environment
• Ability to use AI without surrendering technical judgment
• 5+ years of backend software engineering experience
• Strong collaboration and communication skills, with the ability to work well across engineering teams
• Willingness to participate in on-call and production support
• Strong learning orientation and comfort working with senior engineers
• Experience building or operating production backend systems
• Experience debugging production issues and using observability to understand system behavior
• You are energized by debugging, tradeoffs, and steadily improving systems over time
• You enjoy understanding how real systems behave in production, not just how they are supposed to work on paper
• You care about writing software that is maintainable, observable, and dependable
• You are curious about scale, failure, caching, delivery, and operability
• You already use AI regularly in your engineering work and can explain how, when, and why
• You are kind, coachable, and excited to learn from senior engineers
• You bring real backend or infrastructure ownership, not just feature implementation