Full-Time

Research Engineer

Knowledge Team

Posted on 2/12/2025

Anthropic

Anthropic

1,001-5,000 employees

Develops reliable and interpretable AI systems

Compensation Overview

£250k - £410k/yr

Senior, Expert

H1B Sponsorship Available

London, UK

Location-based hybrid policy: Currently, we expect all staff to be in one of our offices at least 25% of the time.

Category
Applied Machine Learning
Natural Language Processing (NLP)
AI & Machine Learning
Required Skills
LLM
Python
Machine Learning
Information Architecture
Reinforcement Learning
Requirements
  • Are a very experienced Python programmer who can quickly produce reliable, high quality code that your teammates love using
  • Have good machine learning research experience
  • Have experience developing software that utilizes Large Language Models such as Claude
  • Are results-oriented, with a bias towards flexibility and impact
  • Have clear written and verbal communication
Responsibilities
  • Designing and implementing from scratch new information architecture strategies
  • Performing finetuning and reinforcement learning to teach language models how to interact with new information architectures
  • Building “hard” knowledge base eval sets to help identify failure modes of how language models work with external data
  • Designing and evaluating advanced agentic search capabilities.
Desired Qualifications
  • Collaborating with product teams to quickly prototype and deliver innovative solutions
  • Building complex agentic systems that utilize LLMs
  • Developing scalable distributed information retrieval systems, such as search engines, knowledge graphs, RAG, indexing, ranking, query understanding, and distributed data processing

Anthropic focuses on creating reliable and interpretable AI systems. Its main product, Claude, is an AI assistant that can perform a variety of tasks for clients across different industries. Claude uses advanced techniques in natural language processing, reinforcement learning, and human feedback to understand and respond to user requests effectively. What sets Anthropic apart from its competitors is its emphasis on making AI systems that are not only powerful but also easy to understand and control. The company's goal is to enhance operational efficiency and decision-making for its clients by providing AI-driven solutions that can be tailored to specific needs.

Company Size

1,001-5,000

Company Stage

Series E

Total Funding

$16.8B

Headquarters

San Francisco, California

Founded

2021

Simplify Jobs

Simplify's Take

What believers are saying

  • Claude 3.7 Sonnet sets new benchmarks in AI-driven code generation.
  • Real-time web search in Claude boosts accuracy and user satisfaction.
  • Anthropic's enterprise focus opens new revenue streams and market opportunities.

What critics are saying

  • Competition from OpenAI and Google threatens Anthropic's market share.
  • AI advancements may lead to a skills gap in software development.
  • Reliance on major backers like Google and Amazon could cause strategic conflicts.

What makes Anthropic unique

  • Anthropic focuses on AI safety, transparency, and alignment with human values.
  • Claude's real-time web search enhances its utility and competitive edge.
  • Anthropic targets enterprise customers, offering tailored AI solutions for business needs.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Flexible Work Hours

Paid Vacation

Parental Leave

Hybrid Work Options

Company Equity

Growth & Insights and Company News

Headcount

6 month growth

2%

1 year growth

8%

2 year growth

3%
Tech Startups
Mar 21st, 2025
Ai Is The New Electricity: Stop Branding Your Startup As An Ai Company. Start Creating Real Value

When OpenAI launched ChatGPT in late 2022, everything shifted. AI wasn’t just another emerging technology—it became a household topic. Investors scrambled to fund AI startups, founders rushed to attach “AI” to their branding, and suddenly, it seemed like every company was an “AI company.” Domains with .AI became trendy, and the phrase “powered by AI” started popping up everywhere, from pitch decks to product descriptions.But here’s the problem: branding your startup around AI is shortsighted. If history is any guide, AI—like electricity and the internet—will become so fundamental that it will fade into the background. It won’t be a differentiator; it will be an expectation. The companies that thrive won’t be the ones leading with “AI-first” messaging but the ones that deliver real, lasting value.1

VentureBeat
Mar 20th, 2025
Anthropic Just Gave Claude A Superpower: Real-Time Web Search. Here’S Why It Changes Everything

Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn More. Anthropic announced today that its AI assistant Claude can now search and process information from the internet in real time, addressing one of users’ most requested features and closing a critical competitive gap with OpenAI’s ChatGPT.The new web search capability, available immediately for paid Claude users in the United States, transforms the AI assistant from a tool limited by its training data cutoff to one that can access and synthesize the latest information across the web.“With web search, Claude has access to the latest events and information, boosting its accuracy on tasks that benefit from the most recent data,” Anthropic said in its announcement. The company emphasized that Claude will provide direct citations to sources, allowing users to fact-check information— a direct response to growing concerns about AI hallucinations and misinformation.AI arms race intensifies as Anthropic secures billions in fundingThis launch comes at an important moment in the rapidly evolving AI sector. Just three weeks ago, Anthropic secured $3.5 billion in Series E funding at a post-money valuation of $61.5 billion, underscoring the high stakes in the AI race. Major backers include Lightspeed Venture Partners, Google (which holds a 14% stake), and Amazon, which has integrated Claude into its Alexa+ service.The web search rollout also follows Anthropic’s recent release of Claude 3.7 Sonnet, which the company claims has set “a new high-water mark in coding abilities.” This focus on programming proficiency appears strategic, especially in light of CEO Dario Amodei’s recent prediction at a Council on Foreign Relations event that “in three to six months, AI will be writing 90% of the code” that software developers currently produce.The timing of this feature launch reveals Anthropic’s determination to challenge OpenAI’s dominance in the consumer AI assistant market

Analytics India Magazine
Mar 18th, 2025
Anthropic to Launch Voice Mode Soon, More Features Incoming for Business Users

Anthropic to launch voice mode soon, more features incoming for business users.

TechCrunch
Mar 18th, 2025
Anthropic-backed AI-powered code review platform Graphite raises cash | TechCrunch

Graphite, an AI-powered code review platform backed by Anthropic, has raised cash in a new fundraising round.

PYMNTS
Mar 18th, 2025
Anthropic Eyes Customers Who ‘Spend All Day In Meetings’

Anthropic is reportedly readying new artificial intelligence (AI) products aimed at business users. According to a Financial Times (FT) report Tuesday (March 18), the startup is focusing on enterprise customers rather than trying to compete against OpenAI and Google in their efforts to develop AI chatbots and agents designed for wider use. The company is concentrating on how its technology could “help with knowledge work” for “people who spend all day in meetings or in Excel or Google Docs,” Mike Krieger, Anthropic’s chief product officer, told the FT

INACTIVE