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Perplexity AI

Builds AI search and research tools

Member of Technical Staff - Software Engineer, Enterprise Knowledge Platform

Backend EngineeringConfirmed live in the last 24 hours
Full-time$220k - $405k /yrHybrid

About the Job

Requirements

  • 4+ years of software engineering experience, with a track record of owning complex backend systems from design through production operation.
  • Strong system design skills, including building reliable, scalable platforms that integrate heterogeneous APIs and services with clear security and isolation boundaries.
  • Strong proficiency in a backend language such as Python, Go, or Rust, and hands-on experience with cloud infrastructure such as AWS and Kubernetes.
  • Deep expertise in at least one of the following: connector runtimes, API platforms, or MCP servers, including authentication and authorization; schema design, semantic modeling, or knowledge systems that capture relationships and organizational context; search, ranking, recommendation, or tool discovery systems; marketplaces, developer platforms, or enterprise onboarding and activation experiences.
  • Ability to work across backend infrastructure and customer-facing product experiences, translating complex integration requirements into clear APIs, developer tools, and intuitive workflows.
  • Sound technical judgment in security-sensitive, distributed systems, balancing credential isolation, permission correctness, and failure behavior with performance, usability, and delivery speed.
  • A track record of leading ambiguous, cross-team initiatives from architecture through adoption, setting technical direction for shared platforms, and raising engineering quality through mentorship.

Responsibilities

  • Own the connector runtime that registers, hosts, and executes native connectors, hosted MCP servers, and CLI-backed tools through a consistent agent-facing interface.
  • Build the semantic and knowledge layer, including tool and entity schemas, capability metadata, relationships, organization-specific terminology, and reusable corrections, while preserving provenance and source-system permissions.
  • Design discovery, search, and recommendation systems that help agents find relevant tools and context and help users and organizations choose integrations that fit their work.
  • Build the marketplace and activation experience end to end, from browsing and recommendations to installation, configuration, admin enablement, and ongoing adoption.
  • Make connector execution reliable and observable, with structured results, retries, idempotency, pagination, rate-limit handling, and recovery from partial failures. Own reliability targets, production monitoring, and incident response.
  • Implement connector authentication, credential isolation, and permission enforcement, partnering with Trust & Governance, Security, and Backend Platform on shared policies and tenant boundaries.
  • Build the onboarding and publishing path for internal teams and external partners, including schemas, test fixtures, validation, review, and versioning.

About the Company

Perplexity AI

Builds AI search and research tools

Perplexity AI builds AI search and research tools for individuals and organizations, combining web retrieval with written answers that link to their sources. Users ask questions in its website or apps, upload files for analysis, and follow up in a conversation, while its Comet browser brings an AI assistant into everyday browsing. Enterprise accounts connect internal files and applications with web research, and developers use its search and agent APIs to add these capabilities to their own software. The company earns money from paid personal and business subscriptions and usage charges for its APIs, alongside free consumer access. Perplexity AI was founded in 2022 and is headquartered in San Francisco, California.

Company size
201-500
Company stage
Private
Total funding
$1.7B
Headquarters
San Francisco, CA
Founded
2022

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