← All jobs in United States

Remote · Flexible hours · Security Engineer

Staff+ Application Security Engineer - M&A

Anthropic · San Francisco · United States

Remote USD 320k–485k / year Posted Open until 18 Oct 2026
  • Remote Remote-Friendly (Travel-Required) | San Francisco, CA | Seattle, WA | New York City, NY — job location

The job, in the employer's words

About Anthropic

Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems.

About the role

Anthropic's Application Security team secures the systems that build, serve, and increasingly are Claude — and as Anthropic's footprint grows, that mandate now extends to companies and codebases we bring in from outside. This role establishes that function.

You'll own security due diligence and secure integration for Anthropic's acquisitions — assessing a target's security posture pre-close, writing the security risk readout for leadership, and after close, bringing acquired systems up to Anthropic's bar. Security has been part of every deal to date, but this is the first dedicated role for it: you'll formalize the playbook, the risk model, and the tooling, and make them repeatable.

This is an AppSec role first. You'll be an active member of the Application Security team — same rituals, same on-run rotation, same tooling, working alongside engineers securing Anthropic's own agentic product surfaces. The expectation is the same too: we use Claude as our primary tool, and you're expected to automate the repeatable parts of diligence and integration as you go, so each acquisition is easier than the last. When deal flow is quiet, you'll pick up core AppSec project work; when it's active, M&A is your priority.

We're upfront that the center of gravity here is M&A rather than core product security. It's burstier, more assessment-heavy, and operates on confidential, time-sensitive work. If you like parachuting into an unfamiliar codebase under time pressure and turning it into a clear risk picture for leadership, this is that job.

Key responsibilities

  • Lead pre-close security due diligence on prospective acquisitions — coordinate external penetration testing, threat-model the target's architecture, assess security controls, and deliver the security risk readout for leadership ahead of close and integration planning
  • Drive post-close security integration — stand up static and dynamic analysis coverage on acquired codebases, track high- and critical-severity remediation to closure, fold acquired assets into bug bounty scope, and onboard repositories to Anthropic's automated vulnerability remediation and reporting systems
  • Coordinate adjacent security engineering teams (supply chain, cloud, corporate security, detection & response) on their portions of each integration
  • Work across a wide set of stakeholders on every deal — corporate development, legal, security leadership, and the engineering teams inheriting acquired systems internally; engineering and security counterparts at the target company externally — translating between them and keeping the security workstream legible to all of them
  • Formalize and scale Anthropic's M&A security playbook — risk-scoring model, diligence runbook, integration checklist — and turn as much of it as possible into Claude-powered tooling rather than manual process
  • Share the team's operational on-run rotation (bug bounty escalations, launch consults, incident response), swapping out during periods of active deal work
  • Contribute to core AppSec projects between deals — secure design reviews, threat modeling for agentic systems, and the team's security automation roadmap

Minimum qualifications

  • Hands-on application and infrastructure security experience, including cloud and containerized environments
  • Demonstrated ability to rapidly assess an unfamiliar codebase or architecture and produce a clear, prioritized risk assessment for a non-security audience
  • Production-quality coding ability in at least one of Python, Go, Rust, or TypeScript
  • Practical threat-modeling and vulnerability-identification skills — you've found and reasoned about real bugs in real systems
  • Comfort operating with high autonomy, ambiguity, and tightly-held confidential context
  • Clear written and verbal communication across varied audiences — executives, legal and corporate development partners, and engineering counterparts at an acquired company

Preferred qualifications

  • 7+ years in application security, security consulting, or security architecture
  • Prior M&A security due diligence, third-party security assessment, or technical due diligence experience
  • Experience standing up or scaling SAST/DAST, bug bounty, or vulnerability management coverage across multiple codebases
  • Track record of building security automation or tooling rather than relying solely on manual review
  • Familiarity with using LLMs as a core part of your security workflow
  • Experience securing agentic, code-execution, or LLM-integrated systems

Representative projects

  • Point Anthropic's internal LLM-driven code analysis and AI-assisted scanning at an acquired repository nobody here has seen, and turn the output into a prioritized remediation plan in days rather than weeks
  • Design the risk-scoring framework Anthropic uses to compare security posture across acquisitions of different shapes and sizes
  • Build the automation that onboards an acquired codebase to Anthropic's vulnerability dashboard, dependency auto-patching, and bounty scope without a human running a checklist
  • Write the security risk memo for a live deal and present it to corporate development and security leadership

The annual compensation range for this role is listed below. 

For sales roles, the range provided is the role’s On Target Earnings ("OTE") range, meaning that the range includes both the sales commissions/sales bonuses target and annual base salary for the role.

Annual Salary:
$320,000—$485,000 USD

Logistics

Minimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experience

Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience

Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position

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

Visa sponsorship: We do sponsor visas! However, we aren't able to successfully sponsor visas for every role and every candidate. But if we make you an offer, we will make every reasonable effort to get you a visa, and we retain an immigration lawyer to help with this.

We encourage you to apply even if you do not believe you meet every single qualification. Not all strong candidates will meet every single qualification as listed.  Research shows that people who identify as being from underrepresented groups are more prone to experiencing imposter syndrome and doubting the strength of their candidacy, so we urge you not to exclude yourself prematurely and to submit an application if you're interested in this work. We think AI systems like the ones we're building have enormous social and ethical implications. We think this makes representation even more important, and we strive to include a range of diverse perspectives on our team.

Your safety matters to us. To protect yourself from potential scams, remember that Anthropic recruiters only contact you from @anthropic.com email addresses. In some cases, we may partner with vetted recruiting agencies who will identify themselves as working on behalf of Anthropic. Be cautious of emails from other domains. Legitimate Anthropic recruiters will never ask for money, fees, or banking information before your first day. If you're ever unsure about a communication, don't click any links—visit anthropic.com/careers directly for confirmed position openings.

How we're different

We believe that the highest-impact AI research will be big science. At Anthropic we work as a single cohesive team on just a few large-scale research efforts. And we value impact — advancing our long-term goals of steerable, trustworthy AI — rather than work on smaller and more specific puzzles. We view AI research as an empirical science, which has as much in common with physics and biology as with traditional efforts in computer science. We're an extremely collaborative group, and we host frequent research discussions to ensure that we are pursuing the highest-impact work at any given time. As such, we greatly value communication skills.

The easiest way to understand our research directions is to read our recent research. This research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences.

Come work with us!

Anthropic is a public benefit corporation headquartered in San Francisco. We offer competitive compensation and benefits, optional equity donation matching, generous vacation and parental leave, flexible working hours, and a lovely office space in which to collaborate with colleagues. Guidance on Candidates' AI Usage: Learn about our policy for using AI in our application process.

Requirements mentioned

  • Hands-on application and infrastructure security experience, including cloud and containerized environments
  • Demonstrated ability to rapidly assess an unfamiliar codebase or architecture and produce a clear, prioritized risk assessment for a non-security audience
  • Production-quality coding ability in at least one of Python, Go, Rust, or TypeScript
  • Practical threat-modeling and vulnerability-identification skills — you've found and reasoned about real bugs in real systems
  • Comfort operating with high autonomy, ambiguity, and tightly-held confidential context
  • Clear written and verbal communication across varied audiences — executives, legal and corporate development partners, and engineering counterparts at an acquired company
  • 7+ years in application security, security consulting, or security architecture
  • Prior M&A security due diligence, third-party security assessment, or technical due diligence experience
  • Experience standing up or scaling SAST/DAST, bug bounty, or vulnerability management coverage across multiple codebases
  • Track record of building security automation or tooling rather than relying solely on manual review
  • Familiarity with using LLMs as a core part of your security workflow
  • Experience securing agentic, code-execution, or LLM-integrated systems
  • Not all strong candidates will meet every single qualification as listed. Research shows that people who identify as being from underrepresented groups are more prone to experiencing imposter syndrome and doubting the strength of their candidacy, so we urge you not to exclude yourself prematurely and to submit an application if you're interested in this work. We think AI systems like the ones we're building have enormous social and ethical implications. We think this makes representation even more important, and we strive to include a range of diverse perspectives on our team. Your safety matters to us. To protect yourself from potential scams, remember that Anthropic recruiters only contact you from @anthropic.com email addresses. In some cases, we may partner with vetted recruiting agencies who will identify themselves as working on behalf of Anthropic. Be cautious of emails from other domains. Legitimate Anthropic recruiters will never ask for money, fees, or banking information before your first day. If you're ever unsure about a communication, don't click any links—visit anthropic.com/careers directly for confirmed position openings.

No Mondays shows this listing as the employer published it. Check the details on the employer's site before you apply.

More remote jobs in United States

Rithum LinkedIn Board · United States - Remote · yesterday

Staff Information Security Engineer - AI First

Rithum™ is the world’s most trusted commerce network, accelerating how brands, suppliers, and retailers work together to deliver seamless e-commerce experiences. We provi…

RemoteUSD 170k–220k / year
DoorDash USA · United States - Remote · yesterday

Staff Security Engineer - Security Enablement

About the Role Global Safety and Security (GSS) protects our people, our sites, and the physical and logical systems that keep the business running. Our security and prot…

RemoteUSD 194k–285k / year
GuidePoint Security · Remote · 2 days ago

Security Engineer - SIEM/SOAR - Northeast region

GuidePoint Security provides trusted cybersecurity expertise, solutions and services that help organizations make better decisions and minimize risk. By taking a three-ti…

Remote
Harness · U.S. (Remote) · 2 days ago

Senior Product Security Engineer

Harness is the AI Software Delivery Platform company, led by technologist and entrepreneur Jyoti Bansal (founder of AppDynamics, acquired by Cisco for $3.7B). Harness has…

RemoteUSD 150k–200k / year
Innovaccer Analytics · United States · 3 days ago

4745-Security Engineer II - GRC

Engineering at Innovaccer With every line of code, we accelerate our customers' success, turning complex challenges into innovative solutions. Collaboratively, we transfo…

Remote
Databricks · Remote - California · 3 days ago

Sr. Security Engineer - Enterprise Security

RDQ427R608 While candidates in the listed location(s) are encouraged for this role, candidates in other US locations will be considered. --- About the Team The Enterprise…

RemoteUSD 168k–231k / year

22,719 live roles · See all →

Other roles at Anthropic

Anthropic · San Francisco · yesterday

Member of Editorial Staff - Economics & Policy

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as …

RemoteFlexible hoursUSD 265k–295k / year
Anthropic · Boston · 2 days ago

IT Systems Engineer - M&A

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as …

RemoteFlexible hoursUSD 325k–360k / year
Anthropic · Friendly · 6 days ago

Conceptual Reasoning Fellow

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as …

RemoteFlexible hoursUSD 100k–167k / year
Anthropic · San Francisco · 8 days ago

Staff+ Software Engineer - Research Systems Engineering

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as …

RemoteFlexible hoursUSD 320k–485k / year
Anthropic · Boston · 8 days ago

IT Systems Engineer - Client Platform Engineer - macOS

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as …

RemoteFlexible hoursUSD 285k–325k / year
Anthropic · Friendly · 15 days ago

Network Deployment and Maintenance Lead - Data Center Operations

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as …

RemoteFlexible hoursUSD 320k–405k / year

85 live roles · See all →

Remote share — Security Engineer jobs in United States

87% are remote

232 of 266 jobs we have listed

How long they stay open — Security Engineer jobs in United States

61 days median time open before the listing ended

Based on 21 ended listings

Advertised pay — Security Engineer jobs in United States

USD 196k median advertised pay / year

Middle half: USD 158k – USD 220k

From 185 listings that state pay