Replit
Staff Software Engineer, Agent Platform
$250K–$365K
Foster City, CA · Hybrid · Staff · Full-time · Posted Apr 14, 2026
- Experience
- 8+ years professional experience building backend services, systems and platforms.
About the job
Build backend services, infrastructure, and interfaces that help engineers improve Replit Agent and enable real-time collaboration between people and AI agents.
What you'll do
- Build high-throughput backend applications and services, including streaming chat between users and agents.
- Design a real-time collaborative environment for shared shells, filesystems, and state.
- Develop frontend and backend infrastructure and interfaces connecting Agent to internal and external agentic systems.
What they ask for
- 8+ years of professional experience building backend services, systems, and platforms.
- Pragmatic, self-directed, and comfortable working autonomously.
- Collaborative and team-oriented, with a strong sense of shared ownership.
Nice to have
- Full-stack experience or experience building AI-powered tools or products.
- Experience with Operational Transforms (OT), CRDTs, Git internals, or event sourcing systems.
Pay
$250K – $365K USD base salary
Tools
Operational Transforms (OT), CRDTs, Git, MCP
AI focus
Build tools that enhance the core AI Agent and interfaces to internal and external agentic systems; design real-time collaboration between humans and AI agents.
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