Backend Software Engineer, SDK
LaunchDarkly
Posted: 10/19/2026ErlangHaskellJavaLuaNode.jsPythonRubyC++Go+1 more
Project Developer – Residential Remodeling Sales
Murphy Bros. Design | Build | Remodel
Posted: 10/19/2026
Senior Analyst / Developer – Guidewire PolicyCenter
REVAU
Posted: 10/19/2026Guidewire
Senior Project Developer
UGE
Posted: 10/19/2026ERP
Scada Engineering Technician
Qualus
Posted: 10/19/2026FirewallsJavaScriptTCP/IP
Traffic Engineering Intern
STV
Posted: 10/19/2026
Manager – Industrial Engineering
DPR Construction
Posted: 10/19/2026Assembly
Deployment Lead, Forward Deployed Engineering – Platform
OpenAI
Posted: 10/19/2026
Engineering Quality Manager
Veoneer
Posted: 10/19/2026Cyber Security
Software Engineer
Akamai Technologies
Posted: 10/19/2026CloudJavaScriptPythonGo
Senior Pega Developer
Accenture Federal Services
Posted: 10/19/2026AWSCloud
Global Process Engineering Authority – Non traditional Machining, EDM, ECM, FHD
GE Vernova
Posted: 10/19/2026
Senior Routing Engine Developer – CX Platform
Miratech
Posted: 10/19/2026CloudDistributed SystemsJavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQ+3 more
Senior Routing Engine Developer – CX Platform
Miratech
Posted: 10/19/2026CloudDistributed SystemsJavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQ+3 more
Senior Routing Engine Developer, CX Platform
Miratech
Posted: 10/19/2026CloudDistributed SystemsJavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQ+3 more
Senior Routing Engine Developer – CX Platform
Miratech
Posted: 10/19/2026CloudDistributed SystemsJavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQ+3 more
Senior Routing Engine Developer – CX Platform
Miratech
Posted: 10/19/2026CloudDistributed SystemsJavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQ+3 more
Senior Routing Engine Developer – CX Platform
Miratech
Posted: 10/19/2026CloudDistributed SystemsJavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQ+3 more
Senior Routing Engine Developer – CX Platform
Miratech
Posted: 10/19/2026CloudDistributed SystemsJavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQ+3 more
Senior Routing Engine Developer – CX Platform
Miratech
Posted: 10/19/2026CloudDistributed SystemsJavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQ+3 more
Senior Routing Engine Developer – CX Platform
Miratech
Posted: 10/19/2026CloudDistributed SystemsJavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQ+3 more
Backend Software Engineer, SDK
LaunchDarklyPosted 10/19/2026full-timeRemote • California • United StatesMid-LevelSenior💰 $145,500 - $200,090 per yearWebsite
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in building and contributing to SDKs across multiple platforms, with a strong emphasis on performance, concurrency, and resiliency. Proficient in multiple programming languages and committed to maintaining high-quality, production-ready code while collaborating effectively with cross-functional teams.
Highest-signal resume keywords
SDK DevelopmentPolyglot ProgrammingUnit TestingOpen-Source ContributionProduction-Ready Code
Tech Stack
Tools & technologiesAbout the role
Key responsibilities & impact- Build and contribute to SDKs across 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 engineering and product teams to drive implementation and release of major features
- Actively maintain open-source repositories
- Identify areas of improvement and advocate for best practices
- Shape technology and product decisions
- Build feature-rich SDK agents emphasizing performance, concurrency, and resiliency
Requirements
What you’ll need- Demonstrable experience building libraries and packages used by other developers
- Polyglot background with ability to context switch between languages quickly
- 5+ years experience with at least two of: .NET, Go, Ruby, Python, NodeJS, Java
- Strong computer science fundamentals
- Strong testing background, including unit, integration, load tests, and benchmarks
- Experience writing production-ready code with emphasis on quality and maintainability
- Experience contributing to open-source software
- Experience with C++, Erlang, Haskell, or Lua is a plus
- Experience with AI SDKs is a plus
- Experience with observability SDKs is a plus
- Mobile development experience is a plus
- Committed to working in a communicative, collaborative environment
- Self-starter and problem solver, willing to solve difficult problems and work independently when necessary
Benefits
Comp & perks- Restricted Stock Units (RSUs)
- Health insurance
- Vision insurance
- Dental insurance
- Mental health benefits
- Opportunities to visit the office in Bay Area California
- Work collaboratively with highly experienced engineers
- Publicly visible contributions to open-source SDKs
- Opportunities to work with other LaunchDarkly teams
- Opportunities to learn many programming languages and frameworks
- Opportunities to influence roadmap and prioritization
ATS Keywords
✓ Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
.NETGoRubyPythonNodeJSJavaC++ErlangHaskellLua
Soft Skills
Problem SolvingCollaborationCommunicationSelf-Starter
Tools & Technologies
AI SDKsObservability SDKsMobile Development
Industry Keywords
Software DevelopmentPerformanceResiliencyTestingBest Practices