Senior Software Engineer, Anthropic

Search

$300-320k

Plus optional equity donation matching

Python

Java

Senior and Expert level

New York

San Francisco Bay Area

More information about location

AI safety and research company

Open for applications

AI safety and research company

1001+ employees

B2BArtificial IntelligenceDeep TechMachine LearningSaaS

Open for applications

$300-320k

Plus optional equity donation matching

Python

Java

Senior and Expert level

New York

San Francisco Bay Area

More information about location

1001+ employees

B2BArtificial IntelligenceDeep TechMachine LearningSaaS

Company mission

To create reliable, interpretable, and steerable AI systems.

Job

Company

Role

Who you are

5+ years building complex distributed systems in production
Solid grasp of search fundamentals: indexing, retrieval, ranking
Strong coding skills in Python, Go, Java, or similar languages
Hands-on experience with high-volume data processing architectures
Education requirements: We require at least a Bachelor's degree in a related field or equivalent experience

What the job involves

We're building Anthropic's search platform team to create scalable, efficient search capabilities that power Claude's ability to access and retrieve information. In this role, you'll design and implement core search systems from the ground up
Work with a small, senior team of engineers and researchers to build Anthropic’s search platform from scratch
Establish metrics and tooling to measure and improve search quality
Enhance search algorithms and indexing mechanisms to boost search accuracy and efficiency

Our take

Funded by Google and founded by ex-OpenAI employees, Anthropic is an AI company focused on building a reliable, innovative AI system. While the company is relatively new to the market it has already launched a highly anticipated AI chat assistant called Claude which is set to rival OpenAI's ChatGPT.

Similar to other chatbots, Claude is accessible through a chat interface and can provide a number of conversation and text-processing tasks. A key point of differentiation is that Claude is designed to produce less harmful outputs than that of the other chatbots that came before it.

While there is much praise for the chat assistant, there is still room for improvement with feedback reporting that Claude is worse at maths and grammar compared to its rival. However, with industry giants like Google backing this company from an early stage, and a monumental Series F round of $13 billion awarded in 2025, the company is planning to enhance Claude and expand its presence in Europe. What's more, Anthropic's commitment to "Constitutional AI" positions it as a leader in the responsible development of artificial intelligence.

Freddie

Company Specialist at Welcome to the Jungle

Insights

Top investors

190% employee growth in 12 months

Glassdoor (4.5)

Trustpilot (1.5)

Company

Funding (last 2 of 13 rounds)

Sep 2025

$13bn

SERIES F

Mar 2025

$3.5bn

SERIES E

Total funding: $29.3bn

Company benefits

Comprehensive health, dental, and vision insurance for you and your dependents
Inclusive fertility benefits via Carrot Fertility
Generous subsidy for OneMedical
21 weeks of paid parental leave
Unlimited PTO
Optional equity donation matching at a 3:1 ratio, up to 50% of your equity grant
401(k) plan with 4% matching
$500/month flexible wellness stipend
Commuter coverage
Annual education stipend
A home office improvement stipend when you first join
Relocation support for those moving to the Bay Area

Company HQ

SoMa, San Francisco, CA

Leadership

Dario Amodei

(Co-Founder & CEO)

Spent almost 5 years at OpenAI as a Team Lead for AI safety and as the Vice President of Research. Also worked as a Research Scientist at Google.

Jared Kaplan

(Co-Founder & Chief Science Officer)

Has been a Professor at John Hopkins University for the past 10 years. Also an experienced researcher having worked previously at OpenAI and the SLAC National Accelerator Laboratory.

Jack Clark

(Co-Founder)

Experienced reporter having worked previously at the Register and Bloomberg. Also worked for OpenAI in Strategy and Communications and as a Policy Director.

Sam McCandlish

(Co-Founder & CTO)

Graduated from Stanford University with a PhD in Theoretical Physics. Previously worked as a Research Lead at OpenAI.

Tom Brown

(Co-Founder)

Previously worked as a Member of the Technical Staff for both OpenAI and Google Brain.

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