Perplexity · 2 weeks ago
Software Engineer - Agent Infra
United States
Full-time
Remote
Senior Level
$200K/yr - $300K/yr
6+ years expPerplexity is looking for a Software Engineer to build the core infrastructure that powers agentic products across the company. The role involves designing and evolving systems for agent functionalities, ensuring reliability and scalability of the infrastructure.
Artificial Intelligence (AI)ChatbotMachine LearningNatural Language ProcessingSearch Engine
Responsibilities
Design and implement a highly reliable and scalable agent runtime: orchestration, shared state and memory, tool calling interfaces, and scheduling for cost, latency, and quality
Build secure sandboxed execution for agent actions and code. Optimize cold start, isolation, and observability
Ship unified interfaces for multiple model sizes and providers. Integrate with open tool ecosystems such as MCP style connectors for data and actions
Develop an evaluation platform for online and offline assessments, A/B tests, safety checks, and regression gates that improve agent reliability over time
Partner with Research, Inference, and Search to land new agent capabilities end to end, from prototype to production
Qualification
Required
6+ years of industry experience building large scale systems or platforms
Experience building agent applications with tool calling, context engineering, or open connector integrations
Strong coding skills in one or more of: Python, Java, Go. Comfortable with service design, APIs, and data models for high throughput systems
Working knowledge of containers, virtualization, and sandboxing. Familiar with metrics, tracing, on call, and incident practices
Bias to own problems across layers, collaborate in fast moving teams, and ship
Preferred
Prior work on agent orchestration pipelines: task routing, planning, memory graphs, vector search, or browser automation
Experience with evaluations, preference optimization, or RL to improve agent reliability
Exposure to MCP or similar open protocols for tool and data connectivity
Security hardening for multi tenant workloads, snapshotting, or untrusted code execution
Company
Perplexity
Perplexity is an AI-powered answer engine designed to provide accurate, real-time responses to user queries.
201-500 employees
H1B Sponsorship
Perplexity has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (12)
2024 (7)
2023 (2)
Funding
Current Stage
Late StageTotal Funding
$1.48BKey Investors
Cristiano RonaldoNuVenturesAccel
2025-12-05Undisclosed
2025-09-10Series Unknown· $200M
2025-08-15Secondary Market
Leadership Team
Aravind Srinivas
Cofounder, President, CEO
Denis Yarats
Co-Founder & CTO
Recent News
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2026-01-11
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Company data provided by crunchbase