A

Anthropic

Builds Claude AI models with a focus on safety

Cyber Evaluations Engineer

Full-TimeUpdated on 10/23/2026
$300k - $405k/yr
Mid
Bachelor's
Remote in USA+2 moreMore locations: Washington, DC, USA | San Francisco, CA, USA
RemoteOffice attendance is expected at least 25% of the time for hybrid office options.
CybersecurityOffensive Security & Testing
H1B Sponsorship Available

About the job

Requirements
  • Experience building or running evaluations, benchmarks, or test suites for software or machine-learning systems, including delivering results on short, fixed timelines.
  • Hands-on cybersecurity experience, such as capture-the-flag participation, vulnerability research, exploit development, or security research.
  • Proficiency in Python.
  • Ability to communicate evaluation results to multiple cross-functional stakeholders or potential policy stakeholders.
  • Minimum education of a bachelor's degree or equivalent combination of education, training, and experience.
  • A field of study relevant to the role, demonstrated through coursework, training, or professional experience.
Responsibilities
  • Design and run capability, uplift, and safety evaluations to assess cyber-relevant risk in new models.
  • Execute per-release safeguard-robustness testing ahead of major model launches.
  • Analyze evaluation results and communicate findings clearly to the team and stakeholders.
  • Design, prototype, and tune detection probes for cyber misuse.
  • Work with the cyber policy team to translate policy lines into a layered, robust abuse-detection architecture, and measure its precision and coverage over time.
  • Build and maintain internal tooling used to run and score evaluations.
  • Collaborate with policy and engineering partners to translate evaluation findings into safeguard improvements.
Desired Qualifications
  • Deep offensive-security or security-research experience, including experience building AI security benchmarks.
  • Experience analyzing adversarial or abuse data, such as jailbreaks, prompt bypasses, intrusion telemetry, or fraud telemetry.
  • Experience working onsite with government partners on testing or evaluation engagements.
  • Experience with AI/ML evaluation frameworks.
  • Familiarity with coordinated vulnerability disclosure practices.
  • Experience testing pre-release or pre-deployment software or models under confidentiality constraints.
  • Experience authoring detection content, such as Sigma, YARA, Suricata, or SIEM rules, or building machine-learning-based abuse detection.
  • Active Secret security clearance or higher, or eligibility to obtain one.

About the company

Anthropic builds the Claude family of AI models and sells them to businesses, software developers, and consumers, with research on making AI safe and understandable at the center of its work. In 2024 it introduced the Model Context Protocol, an open standard for connecting AI assistants to outside apps and data that OpenAI and Google adopted the next year. People use the Claude app to write and analyze files, programmers hand coding tasks to Claude Code, and companies build Claude into their own products through its API. Anthropic earns money from subscriptions, business plans, and usage-based API fees. Siblings Dario and Daniela Amodei founded Anthropic in 2021 with other former OpenAI employees, and it is based in San Francisco.

Company Size

5,001-10,000

Company Stage

Debt Financing

Total Funding

$242.8B

Headquarters

San Francisco, California

Founded

2021

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Simplify's Take

What believers are saying

  • Sales are multiplying: Anthropic's yearly revenue pace topped $65 billion in July 2026, over sevenfold since December 2025.
  • IPO plans advanced: October 2026 reports describe investor meetings and a mid-November listing target; staff shares face lockups.
  • Lower office minimum: 627 of 646 Anthropic job posts in October 2026 require at least 25% office time.

What critics are saying

  • Job security rides on growth: Anthropic's IPO prospectus lists $518 billion in cloud and computing bills due in coming years.
  • Defense work stays off-limits: in September 2026, appeals judges voted 2-1 to let the Pentagon keep blacklisting Anthropic.
  • Growth is priced in: Anthropic's valuation reached $965 billion in May 2026, up from $380 billion in February.

What makes Anthropic unique

  • Investors don't control its board alone: Anthropic's independent Long-Term Benefit Trust elects a growing number of directors.
  • It isn't tied to one chipmaker: Claude runs on Nvidia GPUs plus custom AI chips designed by Google and Amazon.
  • It holds back its riskiest model: Claude Mythos 5.1, launched September 2026, goes only to vetted cyberdefenders and life scientists.

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Benefits

  • Flexible Work Hours
  • Paid Vacation
  • Parental Leave
  • Hybrid Work Options
  • Company Equity

Growth & Insights and Company News

6 month growth

-3%

1 year growth

2%

2 year growth

-3%
Bloomberg
Oct 23rd, 2026
UK commits $127M to AI biosecurity lab backed by OpenAI, Anthropic and Google DeepMind

The UK has announced £100 million ($134 million) for an AI Biosecurity Lab, which OpenAI, Anthropic, and Google DeepMind will support. The funding is part of a package of measures to help the government understand and tackle the risks posed by the technology.

DealStreetAsia
Oct 22nd, 2026
Blackstone eyes AI financing boom, with 7% of its $1.4T assets already exposed

Blackstone sees growing opportunities to finance artificial intelligence (AI) infrastructure, from chips and computing equipment to power generation and data centres. "The needs of capital here are so enormous. It's unprecedented in our lifetimes," President Jon Gray said on the firm's third-quarter earnings call. The firm is reportedly committing $9 billion to a junior-debt tranche in an $18 billion financing package for Anthropic's AI chips and computing infrastructure, part of a broader $60 billion arrangement. In June, its Credit & Insurance business joined a $35 billion financing launched by Apollo and Broadcom for Anthropic. Blackstone is also weighing dedicated investment vehicles alongside broader funds. About 7% of its $1.4 trillion in assets under management is exposed to AI infrastructure. Gray said the firm focuses on physical infrastructure and long-term contracted assets to manage risks such as technological obsolescence.

PR Newswire
Oct 22nd, 2026
Cube joins Claude's connector directory, bringing live, permissioned FP&A data to finance teams

Cube, an agentic financial planning and analysis (FP&A) platform, has partnered with Anthropic to make its financial model available inside Claude. Finance teams can now add Cube through Claude's connector directory. The connector gives Claude the chart of accounts, business logic, and enterprise permissions behind a company's numbers. Each user sees only the data they are authorised to access, and figures can be traced to the source transaction. Users sign in through a secure OAuth flow, with no API keys to manage. They can then ask questions in plain English, such as comparing actuals with forecast, or set up new scenarios. "Data tells AI what the numbers are. Financial context tells AI what the numbers mean," said Christina Ross, founder and chief executive officer of Cube. The Cube MCP Server is available now.

Associated Press
Oct 22nd, 2026
Qlik's MCP server joins Anthropic's Claude Directory, bringing governed data to Claude

Qlik has made its Model Context Protocol (MCP) server available through Anthropic's Claude Directory. Claude users can now connect governed Qlik data, analytical logic, and selected analytics workflows more easily. The server gives Claude access to data lineage, trust signals, and business metrics from Qlik Cloud. Users can search apps and datasets, ask questions in natural language, and create dashboards with prompts. Teams no longer need to rebuild business logic elsewhere. Access runs on OAuth-based authentication and existing Qlik Cloud permissions, so enterprise controls stay in place. "Customers adopting Claude want more than an LLM hooked to raw records," said Josh Good, vice president of corporate strategy at Qlik. The company announced the news on October 22, 2026.

CNBC
Oct 21st, 2026
Anthropic previews Claude Duet, a proactive AI agent rivalling Meta's Muse and OpenAI's Dots

Anthropic on Wednesday announced a preview of Claude Duet, an AI agent for small businesses and professionals. It can send daily briefs, keep tabs on connected apps, and carry out tasks such as building dashboards, scheduling meetings, and creating financial forecasts. The launch follows Meta's Muse, which topped Apple's App Store after its launch last month, and OpenAI's Dots. Meta chief executive officer Mark Zuckerberg said more than 10 million people in the US and Canada have set up Muse agents. Anthropic said Duet is still early and "might misread a thread or miscalibrate what's urgent." Personal errands, such as booking tickets, are not "quite as strong." A waitlist is open. Pro and Max subscribers can use the preview through a standalone app or the Claude website.