Senior Backend/Infrastructure Engineer, Perplexity AI

Search

Salary not provided

AWS

Python

Java

Linux

C++

Rust

Senior and Expert level

London

In office M-W-F

3 days a week in office

Conversational AI-powered search tool

Open for applications

Conversational AI-powered search tool

21-100 employees

B2CArtificial IntelligenceDeep TechMachine Learning

Open for applications

Salary not provided

AWS

Python

Java

Linux

C++

Rust

Senior and Expert level

London

In office M-W-F

3 days a week in office

21-100 employees

B2CArtificial IntelligenceDeep TechMachine Learning

Company mission

To advance the way people discover and share information.

Job

Company

Role

Who you are

Strong background in cloud infrastructure (AWS preferred), systems design, and automation
Deep understanding of Linux internals, performance tuning, and debugging
Experience building or maintaining CI/CD systems and tooling
Strong Python skills and fluency in at least one systems language (Go, Rust, C/C++, or Java)
Comfort working across both infrastructure and application-level code
A proactive learner who thrives in a fast-paced, innovative environment

What the job involves

Perplexity is looking for a Senior Infrastructure Engineer to join our small team revolutionizing the way people search and interact with the internet
Your passion and diligence will be critical to ensure a high quality product
This role blends infrastructure expertise with software engineering -- you'll own core systems that power our products and development workflows
Build and maintain robust, scalable infrastructure to support high-performance search systems
Develop internal tools and automation to streamline developer workflows and operational efficiency
Design, deploy, and operate cloud-native systems, primarily on AWS
Improve and support CI/CD pipelines, testing infrastructure, and release processes
Debug and optimize Linux systems, containers, and backend services
Contribute directly to product codebases, working across Python, Go, and other systems languages

Salary benchmarks

Our take

As artificial intelligence continues to drive changes in both business operations and day-to-day lives, Perplexity AI delivers an intelligent search engine powered by conversational AI, to improve search outcomes and "unlock the power of knowledge" for all.

Reaching impressive heights of 10 million monthly visits, Perplexity's "ask anything" method of search is clearly a popular one. What sets it apart from other search engines is in its answers, which are concise and fully cited, responding to the user query rather than simply providing a place in which they can scroll to find it themselves.

The company has raised substantial funding, with contributions from former execs at companies like OpenAI, Meta, and Quora, demonstrating the interest that it has drummed up in the space. Having doubled its annual recurring revenue between 2023 and 24, this investment will allow Perplexity AI to continue building out its product, and accelerate growth into the future.

Kirsty

Company Specialist at Welcome to the Jungle

Insights

Top investors

Glassdoor (4.5)

Trustpilot (1.7)

Company

Funding (last 2 of 8 rounds)

Jul 2025

$100m

LATE VC

May 2025

$500m

LATE VC

Total funding: $1.5bn

Company benefits

Equity
Comprehensive health, dental, and vision insurance for you and your dependents
401(k)
Generous home-office stipend

Company HQ

Financial District, San Francisco, CA

Leadership

Aravind Srinivas

(Co-Founder & CEO)

Former Research Scientist at OpenAI, who has interned in Research at Google and Deep Mind. Obtained a PhD in Computer Science from the University of California, Berkeley.

Denis Yarats

(Co-Founder & CTO)

PhD Student in AI at NYU. Former AI Research Scientist at Facebook AI Research, and Staff ML Engineer at Quora.

Johnny Ho

(Co-Founder & CSO)

Previously a Quantitative Trader at Tower Research Capital, and Engineer at Quora.

Andy Konwinski

(Co-Founder)

Co-Founder and Advisor at Databricks. Co-Founder and General Partner at CS Graduate Ventures, and Instructor at the University of California, Berkeley.

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