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

SentinelOne; New York (NY); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Medical, dental, and vision

Unlimited Time Off

RSU Program

401K

Gym reimbursement

Volunteer Time Off

Paid Holidays

Parental Leave

Life Insurance

Short and Long Term Disability

Job summary

SentinelOne is seeking a Staff Endpoint Software Engineer to build lightweight security sensors and enforcement across endpoints, browsers, and workloads to deliver real-time GenAI protection.

You will own your work end-to-end, engage with customer deployments, diagnose and fix issues quickly, and collaborate with security engineers, QA, product, and customer-facing teams to advance the roadmap and protect customers.

Qualifications

• At least 6 years of experience in Python, Node.js, or a comparable language.
• Proficiency in OS architecture and internals.
• Proficiency in browser extension development (Chrome, Firefox, etc.) - Advantage.
• Experience with macOS and Windows Endpoint Security.
• Strong problem-solving skills and customer orientation.

Responsibilities

• Own customer-facing technical problems end-to-end and fix them under real-world pressure.
• Translate business and roadmap context into engineering decisions to move the product forward.
• Collaborate across security engineering, QA, product, and customer-facing teams to hit customer and business goals.

Skills

Python

Node.js

OS architecture

Browser extension development

Endpoint security

Customer orientation

Job description

• 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
• 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

Benefits

• Medical, dental, and vision coverage
• Employee assistance program
• Gym reimbursement
• Incentive-based challenges
• Mental health and mindfulness
• Unlimited Time Off
• Grandparent Leave
• Volunteer Time Off
• Paid Sick Time
• Paid Holidays
• 16 weeks Gender-Neutral Parental Leave
• Restricted Stock Unit Program
• Flexible Spending Accounts
• Life Insurance
• Short and Long Term Disability Insurance
• 401K
• Team building activities
• Celebrations and social gatherings
• Community volunteering events
• Global all hands and local town hall events

• We’re looking for people who are relentlessly curious and committed to continuous learning
• Those who thrive here actively seek out new solutions, experiment thoughtfully, and apply what they learn to drive better, faster, smarter outcomes
• Proficiency in OS architecture and internals
• At least 6 years of experience in Python, Node.js, or a comparable language
• 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
• Proficiency in browser extension development (Chrome, Firefox, etc.) - Advantage
• Experience with macOS and Windows Endpoint Security
• Excellent problem-solving skills and attention to detail
• Strong customer orientation - you take ownership of customer problems and can diagnose and fix issues on the fly in real-world conditions