# Backend Engineer, Flag Delivery

**Company:** [Launchdarkly](https://hotfix.jobs/companies/launchdarkly)
**Location:** Remote
**Role:** Backend Engineering
**Salary:** $146k – $235k/yr
**Experience:** 5+ years
**Skills:** Go, Java, Rust, Distributed Systems, Caching, Concurrency, Observability, Debugging, Cloud Infrastructure, On-Call
**Posted:** 2026-06-22

> Backend engineer building and operating real-time flag delivery services at scale. Requires 5+ years production backend experience, strong Go/Java/Rust skills, distributed systems knowledge, and demonstrated AI fluency in engineering work.

## Job Description

## Responsibilities
- Build, improve, and operate backend services that power LaunchDarkly’s Flag Delivery systems.
- Contribute to systems that support streaming and polling delivery models for LaunchDarkly SDKs.
- Debug production issues, improve service reliability, and help the team maintain strong standards around latency, availability, observability, and operability.
- Work with technologies and patterns common to modern distributed backend systems, including caching layers, network services, concurrency, failure handling, and cloud infrastructure.
- Collaborate closely with partner teams including SDK, Platform, SRE, Security, and Enterprise to deliver improvements across the broader platform.
- Participate in the on-call rotation and take ownership of the systems you help build.
- Learn the existing architecture deeply and make pragmatic improvements that increase system clarity, performance, and maintainability.
- Use AI as part of your engineering workflow with sound judgment, including knowing when to use it, how to direct it effectively, and how to verify or reject its output.
- Reason clearly about code, architecture, and whole-system behavior even when AI is in the loop.

## Requirements
- 5+ years of backend software engineering experience.
- Experience building or operating production backend systems.
- Strong programming skills in Go, Java, Rust, or a similar backend language (team primarily uses Go, with some Rust).
- Clear, existing AI usage in engineering work.
- Ability to use AI without surrendering technical judgment.
- Familiarity with distributed systems fundamentals such as caching, concurrency, failure modes, and reliability.
- Experience debugging production issues and using observability to understand system behavior.
- Ability to reason clearly about code, architecture, and system behavior.
- Strong learning orientation and comfort working with senior engineers.
- Strong collaboration and communication skills, with the ability to work well across engineering teams.
- Willingness to participate in on-call and production support.

## Nice-to-Haves
- Kind, coachable, and excited to learn from senior engineers.
- Enjoy understanding how real systems behave in production.
- Curious about scale, failure, caching, delivery, and operability.
- Energized by debugging, tradeoffs, and steadily improving systems over time.
- Bring real backend or infrastructure ownership, not just feature implementation.
- Care about writing software that is maintainable, observable, and dependable.

## Similar roles

- [SDK Software Engineer, AI](https://hotfix.jobs/jobs/484646ed-e853-4d64-8e96-f26a192b2834) - Launchdarkly - Remote - $146k – $235k/yr
- [Software Engineer II](https://hotfix.jobs/jobs/90cfe9ff-18f1-44a0-a211-bfb22850eb96) - Pinterest - Palo Alto, CA - $146k – $255k/yr
- [Software Engineer - Ride and Fleet Services](https://hotfix.jobs/jobs/9d55a5ad-b759-4262-a06a-ae5c2979e5dd) - Zoox - San Diego, CA - $145k – $219k/yr
- [Software Engineer III (Ruby on Rails) (Marketing Technology)](https://hotfix.jobs/jobs/2ed23761-e89b-47e0-ba46-0dbd575f67e6) - PrizePicks - Remote - $145k – $155k/yr
- [CAD Graphics Engine Software Engineer](https://hotfix.jobs/jobs/667dbfa5-2cae-49f1-b7c1-998fecae016f) - Zoo - Remote - $145k – $195k/yr

**Apply:** https://hotfix.jobs/jobs/a0500e3d-c1e4-4688-9c81-82813bc25817
**Canonical:** https://hotfix.jobs/jobs/a0500e3d-c1e4-4688-9c81-82813bc25817