Full Stack Engineer - Observability

LaunchDarkly is looking for a Full Stack Engineer to help build and expand Vega, their AI-powered platform. The role involves designing and developing full-stack features across the Vega platform while collaborating with various teams to enhance customer activation and success.

Responsibilities:

• Design, build, and ship full-stack features across the Vega platform (UI, APIs, backend services, and agent infrastructure)
• Own features end-to-end: from prototype and API design through production rollout and iteration
• Collaborate cross-functionally with product managers, designers, and engineers across Observability and Feature Management
• Participate in architecture discussions and technical design reviews, contributing to sound trade-off decisions
• Write well-tested, maintainable code and promote best practices for quality, observability, and reliability
• Mentor teammates and contribute to a collaborative, high-trust engineering culture
• Participate in on-call rotations and take ownership of production reliability for your features

Requirements:

• 3+ years of professional software engineering experience, with a track record of shipping production-quality full-stack features
• Proficiency across the full stack—comfortable in TypeScript/React on the frontend and Go (or similar) on the backend
• Experience building or integrating LLM-powered features, agents, or AI-driven workflows
• Strong product instincts: you care about user experience and can translate ambiguous requirements into clean, well-scoped solutions
• Collaborative and communicative—you work well across teams and functions, and you're comfortable navigating ambiguity
• Familiarity with LaunchDarkly, feature flagging, or observability tooling is a plus
• Experience with usage-based product surfaces, experimentation platforms, or developer tooling is a plus