Is the Backend Software Engineer, SDK role remote?

Yes — LaunchDarkly lists this as a fully remote position.

What's the salary range?

LaunchDarkly lists $145,500–$200,090 for this role.

How much experience is required?

At least 5 years of relevant experience for this Backend Software Engineer, SDK role.

What's the tech stack?

Joblaze extracted these technologies from the posting: .NET, AI SDKs, C++, Erlang, Go, Haskell.

What seniority level is this role?

LaunchDarkly targets senior candidates for this position.

Is this full-time or contract?

Full-time for this Backend Software Engineer, SDK role at LaunchDarkly.

Backend Software Engineer, SDK at LaunchDarkly

Joblaze summary

In the role of Backend Software Engineer on the SDK team at LaunchDarkly, the engineer will focus on developing and enhancing SDKs that serve as critical interfaces for customers managing feature flags. Proficiency in multiple programming languages, particularly .NET, Go, Ruby, Python, NodeJS, or Java, is essential, along with a strong foundation in software development practices. This position is well-suited for experienced engineers with a background in building libraries and a commitment to collaborative problem-solving. The team operates in a fast-growing environment, emphasizing open-source contributions and cross-team collaboration.

Joblaze insights

Listed today — first seen on Joblaze October 20, 2026. Last confirmed on LaunchDarkly's careers page October 20, 2026.
Salary band is below the typical range for Backend roles (median ~$180,000).
Starts above 10% of 146 comparable senior backend roles in United States that list Python we track (median $175,000 across 58 companies). See Python salary trends
Python appears in 40.4% of 493 comparable senior backend roles in United States; Node.js appears in 0.2% of 493 comparable senior backend roles in United States.

Quick facts

Is the Backend Software Engineer, SDK role remote?: Yes — LaunchDarkly lists this as a fully remote position.
What's the salary range?: LaunchDarkly lists $145,500–$200,090 for this role.
How much experience is required?: At least 5 years of relevant experience for this Backend Software Engineer, SDK role.
What's the tech stack?: Joblaze extracted these technologies from the posting: .NET, AI SDKs, C++, Erlang, Go, Haskell.
What seniority level is this role?: LaunchDarkly targets senior candidates for this position.
Is this full-time or contract?: Full-time for this Backend Software Engineer, SDK role at LaunchDarkly.

From the original posting

About LaunchDarkly Engineering

LaunchDarkly helps engineering organizations ship software and AI with speed, safety, and control. Our platform gives teams the confidence to release gradually, target experiences to the right audiences, learn through experimentation, understand what is happening in production, and respond quickly when risk appears.

Our engineers build the systems, services, SDKs, developer tools, cloud infrastructure, and product experiences that make this possible. The work spans high-scale distributed systems, reliable data and event pipelines, intuitive enterprise workflows, and AI-powered capabilities that help teams manage the next generation of software delivery.

LaunchDarkly’s SDKs are used in systems that perform trillions of feature flag evaluations each day, giving our engineering work a direct connection to the reliability and customer experience of software around the world. As the company grows, we are expanding beyond traditional feature management into experimentation, observability, and AgentControl—helping customers control more of the software and AI lifecycle. That creates an unusually broad set of technical challenges, visible customer impact, and room for engineers to shape what comes next.

We believe in the power of teams. We work with humility, openness, curiosity, and care; we value clear communication, thoughtful technical judgment, inclusive collaboration, and a strong sense of ownership. We encourage people to apply even when they do not meet every qualification listed below. We are interested in the experience, perspective, and potential you would bring to the role.

About the Job

As a Software Engineer on LaunchDarkly’s SDK team, you will build the primary touchpoint that our customers interact with on a daily basis. You’ll work with multiple technologies across our 35+ SDKs while enabling customers of all kinds to feature flag their code. When working on our SDKs, you’d be contributing to much more than thin client wrappers. Our SDKs are feature-rich agents with strong emphases on performance, concurrency, and resiliency -- all while following idiomatic practices for their tech stack.

LaunchDarkly serves trillions of feature flags daily to customers all around the globe, and every flag is handled by our SDKs. This team has a major impact not only on our company, but on our customers (and their customers). We are growing fast and we need your help writing the next chapter in our story.

Responsibilities:

Contribute to development for SDKs in supported platforms:
- Implement new features and improvements to meet customer performance and resiliency requirements
- Keep up to date with the latest development practices
Collaborate with our engineering and product teams to drive the implementation and release of major features
Actively maintain our open-source repositories
Identify areas of improvement and advocate for best practices
Have an active voice in shaping both technology and product decisions

Basic Qualifications:

Demonstrable experience building libraries and packages used by other developers
Polyglot background with an ability to context switch between languages quickly
5+ years experience with at least two of the following: .NET/Go/Ruby/Python/NodeJS/Java
Experience with the following is a plus:
- C++/Erlang/Haskell/Lua
- AI SDKs
- Observability SDKs
- Mobile development
Strong computer science fundamentals
Committed to working in a communicative, collaborative environment
Self‐starter and problem solver, willing to solve difficult problems and work independently when necessary
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

Logistics:

This is a remote role, with opportunities to visit the office in the Bay Area, California, for team offsites
The SDK team is spread between Eastern and Pacific time zones

Highlights:

You will work collaboratively with a team of highly experienced engineers who are amazing at the craft of engineering and building SDKs
Your contributions will be publicly visible as the SDK team develops LaunchDarkly’s open-source SDKs in public
LaunchDarkly uses our own SDKs. You will have opportunities working with the other teams within LaunchDarkly
In this role, you can learn about many programming languages and frameworks
You will have opportunities to strongly influence roadmap and prioritization

Pay:

Target pay ranges based on Geographic Zones* for Level 3:

Zone 1: San Francisco/Bay Area or NYC Metropolitan Area, Boston, Seattle - $171,200 - $235,400**
Zone 2: Irvine, LA, Monterey, Santa Barbara, Santa Rosa, Austin, Portland, Philadelphia, Chicago - $154,100 - $211,860 **
Zone 3: All other US locations - $145,500 - $200,090 **

Do you need a disability accommodation?

Your safety matters to us. To protect yourself from potential scams, LaunchDarkly recruiters will only contact you from @launchdarkly.com email addresses or via LinkedIn from "Verified Recruiter" accounts. Be cautious of emails from other domains. Legitimate LaunchDarkly recruiters will never ask for money, fees, or banking information before making a job offer. LaunchDarkly will never make a job offer without conducting a formal interview process. Our interview process does not involve asking detailed questions by email. If you are ever unsure about a communication that you receive, don't click any links—visit Careers | LaunchDarkly directly for confirmed job openings and links to apply.

Standard company text repeated across LaunchDarkly's postings is omitted here.