Company profile

Perplexity Tech Stack

AI answer engine grounding responses in live web sources

Software Development San Francisco, California 201–500 employees Founded 2022 Privately Held

Perplexity runs an AI answer engine on a GPU-heavy stack: CUDA, Triton, NCCL, NVLink, InfiniBand and RDMA alongside PyTorch and JAX point to in-house model serving and training at the hardware level. Now adopting RAG and dbt, it is building retrieval pipelines for answer grounding while scaling its search index toward billions of pages. Senior-weighted, engineering-led hiring is accelerating, with a notable security push around AI/ML pipelines.

Tech Stack 145 technologies

Core StackSalesforce Rust Python PyTorch TensorFlow Kubernetes Go C++ Java AWS Kafka Hadoop Google Analytics Terraform Ansible JavaScript Apache Spark Databricks CUDA NVIDIA Triton NCCL NVLink InfiniBand RDMA JAX NVIDIA Nsight Compute ONNX Slurm API Platform+113 more

Adoptingdbt RAG

What Perplexity Is BuildingChallenges and projects from their job posts

◆Challenges

Scaling search index to billions of pages
Delivering low-latency AI workloads
Vulnerability remediation and infrastructure hardening
Building secure isolated environments
Maintaining consistency across platforms
Filling hard-to-fill roles

▲Active Projects

RAG pipelines for grounding and answer generation
Multi-region availability and failover
Agent-driven cloud infrastructure management
AI/ML pipeline security assessment and protection
Mission-critical APIs
Cloud infrastructure red team operations

Hiring Activity

Accelerating130 roles · 130 in 30d

Department

Engineering

Sales

Marketing

Design

Product

Legal

Security

Seniority

Senior

Mid

Lead

Manager

Staff

Intern

Junior

Director

Notable leadership hires: Site Lead

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About Perplexity

Perplexity is a privately held company founded in 2022 and headquartered in San Francisco, California. It builds an answer engine that responds to user questions with answers tied to current sources. The company employs 201–500 people and hires across the United States, United Kingdom, Serbia and Germany. Alongside its engineering core, it is building out sales, marketing, design, product, legal and security functions.

HeadquartersSan Francisco, California

Company Size201–500 employees

Founded2022

Hiring MarketsUnited States, United Kingdom, Serbia, Germany

Frequently Asked Questions

What tech stack does Perplexity use?

Perplexity uses Python, Rust, Go, C++ and Java, with PyTorch, JAX, CUDA, Triton and NCCL for AI workloads, plus Kubernetes, AWS, Terraform, Kafka, Spark and Databricks. It is adopting dbt and RAG.

Is Perplexity hiring engineers?

Yes. Engineering is Perplexity's largest hiring area, skewed toward senior roles, with accelerating hiring across the United States, United Kingdom, Serbia and Germany.

What is Perplexity working on?

Perplexity is building RAG pipelines for answer grounding, mission-critical APIs, multi-region failover, agent-driven cloud infrastructure management and security assessments of its AI/ML pipelines.

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How this profile is built

Perplexity's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.