Agent Platform Engineer
Works on agentic and secure vibe coding—building tooling and systems to enable safer, collaborative vibe coding with AI agents.
About the Role
Build and maintain platform tools and high-throughput backend systems that enable product engineers and AI teams to iterate rapidly on Replit Agent experiences. This role combines systems engineering, developer experience, and product-minded thinking to power collaborative, real-time agentic workflows.
Job Description
Role
Replit seeks an Agent Platform Engineer to build tools and infrastructure that accelerate iteration on the Agent experience and improve the core Agent. The role bridges AI engineering and UX/product teams and covers work across browser-based interfaces, high-performance backends, and Linux systems engineering.
Key Responsibilities
- Build high-throughput backend applications and services (e.g., streaming chat between user and agent).
- Design a collaborative “Multiplayer Computer” enabling humans and AI agents to work together on shared shells, filesystems, and state in real time and conflict-free.
- Develop frontend and backend infrastructure to empower product engineers to ship user experiences quickly.
- Design and implement durable interfaces between the Agent and internal/external agentic systems (MCP).
Requirements
- 5+ years professional experience building backend services, systems, and platforms.
- Strong product sense with an emphasis on simplicity and pragmatic delivery.
- Self-directed and comfortable working autonomously.
- Collaborative, team-oriented, and accountable for shared ownership.
Preferred Qualifications
- Full-stack experience.
- Experience building AI-powered tooling or products.
- Experience with collaborative editing technologies such as Operational Transforms (OT), CRDTs, or deep knowledge of Git internals.
- Experience with event sourcing systems.
What We Value
- Problem-solving mindset and systematic approach to operational challenges.
- Strong communication skills for technical and non-technical audiences.
- Continuous learning and adoption of industry best practices.
- Focus on automation and building self-healing systems.
Location & Schedule
- Full-time role based in Foster City, CA. Hybrid in-office requirement: Monday, Wednesday, and Friday.
Compensation & Benefits
- Compensation range provided: $180,000 – $260,000 (USD).
- Benefits include competitive salary & equity, 401(k) program, health/dental/vision/life insurance, short-term and long-term disability, paid parental/medical/caregiver leave, commuter benefits, monthly wellness stipend, in-office setup reimbursement, flexible time off (FTO) and holidays, quarterly team gatherings, and in-office amenities.
Tech Stack
Skills
Experience Level
Salary
USD 180,000 - 260,000/year
Employment Type
Benefits
- •Competitive Salary & Equity
- •401(k) Program
- •Health Insurance
- •Dental Insurance
- •Vision Insurance
- •Life Insurance
- •Short Term Disability
- •Long Term Disability
- •Paid Parental Leave
- •Paid Medical Leave
- •Paid 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
- •Hybrid (Foster City, CA) — Mon/Wed/Fri in-office requirement