Sr Backend Engineer, Flag Delivery
LaunchDarklyFeature Management company
Remote$163,000 - $263,670Senior
Bessemer Venture Partners
Redpoint
Uncork Capital
Insight Partners
Lead Edge Capital
Threshold
Software Engineering
About the role
TL;DR
Senior Backend Engineer to own critical-path systems for global feature-flag delivery.
- •As a Senior Software Engineer on the Flag Delivery team, you will own the critical-path systems that stream feature-flag configuration to every connected SDK globally, in near real time.
- •These systems run at high scale and have to stay reliable, low-latency, and correct.
- •Key Responsibilities Design, build, and operate the distributed systems that deliver feature-flag configuration to LaunchDarkly SDKs.
- •Own and improve the reliability, latency, and scalability of our streaming and polling infrastructure.
- •Debug and resolve complex production issues, sharing the team’s on-call rotation.
- •Drive architectural decisions, trading off performance, cost, and operability.
- •Requirements 6+ years of professional backend engineering, with significant work on distributed or high-throughput production systems.
- •Strong production ownership, including on-call experience and a focus on reliability and observability.
- •Proficient in at least one backend language (Go, Rust, Python) and comfortable on a cloud platform (AWS or equivalent).
- •Deep grasp of distributed-systems fundamentals: concurrency, partitioning, retries, idempotency, backpressure, and failure handling.
Required skills
GoAWSTerraformDatadogRustPythongRPCWebSocketsREST APIMicroservices
Nice-to-have skills
PrometheusNew Relic
Domain expertise
developer-tools
Benefits & perks
Restricted Stock Units (RSUs), health insurance, vision insurance, dental insurance, mental health benefits
Tech stack
GoAWSTerraformDatadogRustPythonPrometheusNew RelicgRPCWebSocketsREST API