Staff Endpoint Software Engineer, Prompt (Python & OS Internals)

Socket.dev; United States; On-site; USD 156,000 - 215,000; Full time

Benefits offered by this job

Restricted Stock Units (RSUs)

Employee Stock Purchase Plan (ESPP)

Flexible time off

Paid holidays and sick time

Parental leave (gender-neutral)

401(k) retirement plan with company 匹

Medical, dental, and vision coverage

Home office allowance

Wellness and gym reimbursement

Job summary

SentinelOne is seeking a Staff Endpoint Software Engineer in the United States to design and build the core sensors powering our Generative AI Security platform across endpoints, browsers, and production workloads. You’ll own your work end-to-end and collaborate with security engineers to deliver robust solutions in a fast-moving environment.

You will translate customer needs into engineering decisions, stay current with GenAI security advances, and help shape the roadmap while delivering

Qualifications

• At least 6 years of experience in Python, Node.js, or a comparable language.
• Experience with macOS and Windows Endpoint Security.
• Proficiency in OS architecture and internals.
• Strong customer orientation and ability to diagnose and fix issues in real-world conditions.
• Understanding of GenAI risks and security implications for customers.

Responsibilities

• Build and optimize sensor components for minimal system footprint, high performance, and reliability.
• Evolve Agentic AI capabilities by designing adaptive policy logic and expanding platform coverage.
• Build endpoint and browser security components for real-time GenAI threat detection and data protection.
• Own customer-facing technical problems end-to-end and unblock customers under real-world pressure.
• Translate business and roadmap context into engineering decisions aligned with customer needs.
• Collaborate across security engineering, QA, product, and customer-facing teams to hit goals.
• Stay current with GenAI security advances and apply relevant findings to sensors and extensions.

Skills

Python / Node.js

Endpoint security

OS architecture

Customer focus

Browser extension development

Job description

Our Purpose

At SentinelOne, we are driven by a clear purpose: to give the advantage to those who secure our future. As AI reshapes how organizations build, operate, and innovate, the responsibility to protect them becomes more critical than ever. When you join SentinelOne, your work helps protect global enterprises, critical infrastructure, and the technologies shaping tomorrow. If you are motivated by meaningful challenges and want your impact to be real, measurable, and global, you will find purpose here.

About Us

SentinelOne is a company at the intersection of AI and security, pioneering a new operating model for cybersecurity. Our AI-native platform unifies protection across endpoint, cloud, identity, data, and AI systems to deliver autonomous detection and response with clarity and speed. By combining real-time analytics, intelligent automation, and a unified data foundation, we reduce noise, simplify complexity, and empower security teams to focus on what truly matters.

Our teams are builders, problem-solvers, and innovators committed to shaping the future of security. If you are excited to solve hard problems alongside talented, mission-driven people, we invite you to help us build a safer future for humanity.

What Are We Looking For?

We’re looking for people who are relentlessly curious and committed to continuous learning. AI is reshaping every function across our business, and we enable every team member, regardless of role or level, to build fluency in AI tools and concepts. Those who thrive here actively seek out new solutions, experiment thoughtfully, and apply what they learn to drive better, faster, smarter outcomes.

At Prompt Security, our mission is to empower organizations to safely harness the transformative power of Generative AI. As a one-stop security platform, we provide visibility, governance, and real-time protection against all Generative AI concerns, enabling organizations to innovate and prosper in the age of AI without compromising on security.

As a Staff Endpoint Software Engineer, you'll build the lightweight security components that power our Generative AI Security platform - the core sensors and enforcement mechanisms that operate across endpoints, browsers, and production workloads to deliver real-time, adaptive protection. But building the technology is only half the job. We're looking for an engineer who understands why we're building it: someone fluent in our product, our roadmap, and the real GenAI risks our customers face every day - and who treats a customer problem as their own until it's solved.

You’ll own your work end-to-end, engage directly with the realities of how customers deploy and rely on our sensors, and diagnose and fix issues on the fly when it matters. You'll collaborate with expert engineers on high-impact GenAI security challenges while growing your expertise and your influence on where the product goes next.

What Will You Do?

Primary responsibilities include:

• Build and optimize sensor components for minimal system footprint - high performance, low resource consumption, and maximum reliability across diverse customer environments.
• Evolve our Agentic AI capabilities by helping design adaptive policy logic, improving decision engines, and expanding coverage across platforms - grounded in real customer use cases and roadmap priorities.
• Build endpoint and browser security components and integrate them into the platform for real-time GenAI threat detection and data protection (prompt injection, sensitive-data leakage, shadow AI, and more).
• Own customer-facing technical problems end-to-end - investigate production issues, reproduce and fix them quickly under real-world pressure, and follow through until the customer is unblocked.
• Translate business and roadmap context into engineering decisions - understand what customers need, where the product is heading, and why, so your technical choices move the business forward.
• Collaborate across security engineering, QA, product, and customer-facing teams to hit customer and business goals - not just ship code.
• Stay current with GenAI and platform security and fold relevant advances into our sensors, agents, and extensions.

What Skills and Knowledge Will You Bring?

Ideal candidates will have:

• At least 6 years of experience in Python, Node.js, or a comparable language
• Experience with macOS and Windows Endpoint Security
• Proficiency in OS architecture and internals
• Strong customer orientation - you take ownership of customer problems and can diagnose and fix issues on the fly in real-world conditions
• Business and product awareness - genuine interest in the roadmap, the market, and the customers we serve, and the judgment to weigh technical decisions against business impact
• Accountability and growth mindset - you own your outcomes, hold yourself to a high bar, and actively invest in your own and the team's growth
• Excellent problem-solving skills and attention to detail
• Proficiency in browser extension development (Chrome, Firefox, etc.) - Advantage

Why SentinelOne?

AI is redefining how the world operates and rewriting the rules of security in real time, and SentinelOne was built for this moment. From day one, we architected an AI-native platform designed to operate at machine speed, not as an add-on to legacy systems but as the foundation itself. If you want to build where innovation and impact move together, this is that place.

We invest in our Sentinels with comprehensive, competitive benefits designed to support you and your family:

Equity & Rewards

• Restricted Stock Units (RSUs)
• Employee Stock Purchase Plan (ESPP)

Time Off & Wellbeing

• Flexible time off
• Paid company holidays and paid sick time
• Gender-neutral parental leave
• Grandparent leave

Insurance & Financial Security

• Medical, dental, and vision coverage
• 401(k) retirement plan with company match
• Life and disability insurance
• Health and dependent care FSA
• Voluntary benefits (hospital, accident, critical illness)
• Employee Assistance Program (EAP)
• ARAG pre-paid legal
• Nationwide pet insurance
• Cancer Care program
• Global business travel medical insurance

Work Perks & Flexibility

• Home office allowance
• Mobile phone reimbursement

Wellness & Lifestyle

• Wellness coach
• Wellness/gym reimbursement
• Fertility coverage
• Adoption & surrogacy reimbursement

This U.S. role has a base pay range that will vary based on the location of the candidate. For some locations, a different pay range may apply. If so, this range will be provided to you during the recruiting process.

Base Salary Range

$156,000 - $215,000 USD

SentinelOne is proud to be an Equal Employment Opportunity and

SentinelOne participates in the E-Verify Program for all U.S. based roles.