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Replit

Staff Software Engineer, Agent Platform

Replit

Engineer developing backend applications and collaborative tools for AI Agent at Replit. Bridging gaps between AI logic and UX design to enhance product experiences.

Posted 4/15/2026full-timeFoster City • California • 🇺🇸 United StatesLead💰 $250,000 - $365,000 per yearWebsite

About the role

Key responsibilities & impact
  • Build high-throughput backend applications and services, like streaming chat between user and agent.
  • Design a collaborative "Multiplayer Computer" that lets humans and AI agents work together on shared shells, filesystems, and state—conflict-free and in real time.
  • Develop infrastructure (frontend & backend) that empowers product engineers to rapidly ship delightful user experiences.
  • Design and build durable, well-crafted interfaces between the Agent and internal systems, as well as external agentic systems (MCP)

Requirements

What you’ll need
  • 5+ years professional experience in building backend services, systems and platforms
  • Someone who values simplicity and pragmatism—you think radically but ship incrementally.
  • Self-directed and comfortable working autonomously.
  • Collaborative and team-oriented with a strong sense of shared ownership.
  • Experience across the full-stack.
  • Experience building AI powered tooling or products.
  • Experience with collaborative editing technologies such as Operational Transforms (OT), CRDTs, or the inner workings of Git.
  • Experience with event sourcing systems.

Benefits

Comp & perks
  • Competitive Salary & Equity
  • 401(k) Program with a 4% match
  • Health, Dental, Vision and Life Insurance
  • Short Term and Long Term Disability
  • Paid Parental, Medical, Caregiver Leave
  • Commuter Benefits
  • Monthly Wellness Stipend
  • Autonomous Work Environment
  • In Office Set-Up Reimbursement
  • Flexible Time Off (FTO) + Holidays
  • Quarterly Team Gatherings
  • In Office Amenities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
backend developmentfull-stack developmentAI powered toolingcollaborative editing technologiesOperational TransformsCRDTsevent sourcing systems
Soft Skills
self-directedcollaborativeteam-orientedshared ownershipsimplicitypragmatism