A

Anthropic

Builds Claude AI models with a focus on safety

Security Software Engineer - Detection & Response Platform

Full-TimeUpdated on 10/23/2026
$320k - $405k/yr
Senior
Bachelor's
Seattle, WA, USA+3 moreMore locations: Washington, DC, USA | San Francisco, CA, USA | New York, NY, USA
HybridStaff are expected to work from an office at least 25% of the time; some roles may require more.
CybersecuritySecurity Operations & Incident Response
H1B Sponsorship Available

About the job

Requirements
  • Seven or more years of software engineering experience focused on security, infrastructure, and/or data pipelines.
  • A track record of building and maintaining internal developer tools or security platforms.
  • Strong understanding of data-processing pipelines and experience with large-scale logging systems.
  • Experience with test-driven software development and/or continuous integration and continuous delivery; direct experience with detection-as-code workflows is a plus.
  • Experience with infrastructure as code, such as Terraform or CloudFormation.
  • Experience optimizing queries for large datasets.
  • Experience building stable and scalable services on cloud infrastructure and serverless architectures.
  • Ability to write maintainable and secure code in Python.
  • Experience working with security teams and translating requirements into technical solutions.
  • Ability to lead technical projects with minimal guidance.
  • Track record of driving engineering excellence through high standards, constructive code reviews, and mentorship.
  • Proven ability to lead cross-functional security initiatives and navigate complex organizational dynamics.
  • Ability to communicate technical concepts effectively across organizational levels.
  • Demonstrated success bringing clarity and ownership to ambiguous technical problems.
  • Systems thinking and ability to identify and mitigate risks in complex environments.
  • A bachelor's degree or an equivalent combination of education, training, and/or experience; a relevant field of study may be demonstrated through coursework, training, or professional experience.
Responsibilities
  • Build an AI-powered platform covering detection and incident-response capabilities, from detection development through incident response.
  • Design and implement scalable data pipelines to ingest and process security telemetry across the infrastructure.
  • Architect solutions for storing and efficiently querying large volumes of security-relevant data.
  • Create rapid prototypes and proof-of-concepts for new security tooling and analytics capabilities.
  • Work with security and infrastructure teams to understand requirements and deliver solutions.
  • Mentor engineers and contribute to hiring and growth of the Security team.
  • Participate in on-call shifts.
Desired Qualifications
  • Experience building security tooling from the ground up.
  • Background implementing security monitoring solutions such as security information and event management (SIEM), log aggregation, or endpoint detection and response (EDR).
  • Background in detection engineering or security operations.
  • Experience developing security orchestration, automation, and response (SOAR) platforms or automation.
  • Experience with data lake or database architecture.
  • Experience with application programming interface (API) design and internal platform creation.
  • Track record of applying machine learning or artificial intelligence to security problems.
  • Experience scaling security operations in a high-growth environment.

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 Jobs

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.