Full Stack Engineer, Experimentation

LaunchDarkly is seeking a skilled Full-Stack Engineer to join our Experimentation team. In this role, you’ll collaborate closely with a cross-functional team to help build an experimentation platform that balances power and accessibility, contributing to the design, development, and maintenance of scalable services.

Responsibilities:

• Contribute to the design, development, and maintenance of scalable and performant solutions for experimentation and data-driven products, with attention to usability and maintainability
• Collaborate with senior engineers on architectural decisions that impact system scalability and performance
• Lead limited scope features from definition to deployment
• Help identify and troubleshoot performance issues and participate in efforts to optimize service reliability
• Work closely with product managers, engineers, data scientists, and designers to implement new features and iterate on existing functionality
• Participate in code reviews to support code quality and share constructive feedback with teammates
• Write clean, maintainable, and well-tested code that enhances the reusability and readability of team systems
• Contribute to the team’s efforts to improve observability, monitoring, and operational excellence
• Help investigate and resolve production issues, occasionally partnering with customer support or other teams as needed
• Collaborate across functions to align on priorities, surface blockers, and improve team workflows
• Learn from and support more senior engineers, and contribute to a culture of growth, inclusion, and continuous improvement
• Stay current with industry trends related to software development, experimentation, and backend technologies
• Demonstrate curiosity, creative thinking, and a proactive mindset in problem-solving

Requirements:

• 4+ years of hands-on experience building full stack web applications
• Solid grasp of software engineering principles, design patterns, and coding best practices
• Exposure to building or maintaining scalable, production-grade systems
• Familiarity with observability practices and tools (e.g., logging, metrics, monitoring)
• Strong collaboration and communication skills with a team-oriented mindset
• Comfortable working in Agile development environments
• Experience with CI/CD practices and tools
• Passion for writing high-quality code and continuously improving engineering practices
• A self-motivated approach and willingness to take initiative
• Ability to thrive in a fast-paced, evolving environment
• Familiarity with Typescript, React, Node, and Go is preferred but not required
• Experience working with cloud platforms (AWS, GCP, or Azure) is a plus
• Prior experience working with or contributing to distributed teams is a plus