---
title: 'Principal AI Platform Engineer (Lead Architect) at SentinelOne'
canonical: 'https://feeny.ai/job/principal-ai-platform-engineer-lead-architect-sentinelone-brno-s5hs1wzvptc5'
type: 'job'
last_seen: '2026-09-09'
---

# Principal AI Platform Engineer (Lead Architect) at SentinelOne

- **Company:** SentinelOne
- **Location:** Brno, Czech Republic
- **Posted:** 2026-08-07
- **Last confirmed live:** 2026-09-09
- **Apply:** https://www.sentinelone.com/jobs/?gh_jid=7824589003

## 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.

SentinelOne is building a new AI Platform team whose mission is to accelerate AI feature delivery across the company while ensuring every AI feature meets our security, cost, and quality standards. We are looking for a Principal AI Platform Engineer / Principal Software Engineer focusing on AI/ML, to be the founding technical leader of this team: you will partner directly with the team's engineering leader to define the technical vision and roadmap for the platform that every AI-powered capability at SentinelOne will build on. SentinelOne already ships AI at scale - from our patented detection models to [Purple AI](https://s1.ai/PurpleA), our award-winning generative AI security analyst - and your challenge is to turn these proven but distributed capabilities into one coherent platform: deciding what to reuse, what to rebuild, and what to create new. This role is as much about product as it is about platform: you should be able to build AI experiences customers love, and then platformize what was built into capabilities that every team can reuse. If you want your technical judgment to set the direction of AI at a leading cybersecurity company, this is a role for you.

What Will You Do?

Primary responsibilities include:

- Define the technical vision and multi-year roadmap for SentinelOne's AI Platform (model gateway/routing - using tools like e.g. Kong; agent/MCP infrastructure, evaluation pipelines, AI observability) in partnership with engineering leadership.
- Serve as the tech lead by owning architecture decisions, setting engineering standards, reviewing critical designs, and guiding implementation across the team without people management responsibilities.
- Support business-critical AI initiatives, partnering with product and engineering leaders to translate business strategy into platform capabilities and clear engineering priorities.
- Partner with product teams to build customer-facing AI experiences hands-on, then platformize what was built into shared, reusable capabilities.
- Drive technology selection and build-vs-buy decisions for the platform's core stack, weighing security, cost, scalability, and time-to-value.
- Mentor senior engineers across the organization and act as a recognized expert on AI infrastructure within and beyond the company.

What Skills and Knowledge Will You Bring?

Ideal candidates will have:

- 12+ years of experience building and operating large-scale distributed systems, including several years driving the architecture of platform or infrastructure products used by multiple teams.
- 2+ years hands-on experience taking LLM-based systems to production (e.g., model integration and routing, retrieval or agent architectures, evaluation harnesses, and cost/latency/quality optimization).
- Strong hands-on coding skills in a mainstream backend language (e.g., Python or Go) and deep experience with Kubernetes and cloud infrastructure (AWS and/or GCP).
- Strong product acumen with experience building world-class customer-facing products, translating customer needs into technical decisions, and engaging business stakeholders.
- Proven track record as a tech lead of cross-team initiatives with ambiguous requirements, turning vague business goals into a sequenced technical roadmap.

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)
- Performance-based bonus

Time Off & Wellbeing

- Flexible time off, on top of the standard 5 weeks PTO
- Paid company wellness days and fully paid short-term sick/nursing leave
- Gender-neutral parental leave

Insurance & Financial Security

- Private medical care benefit
- Life and disability insurance
- Pension Insurance contribution
- Global business travel medical insurance
- Employee Assistance Program (EAP)

Work Perks & Flexibility

- Global home office allowance
- Meal allowance
- Hybrid work in Prague (Karlin), Brno (Clubco) or remote in CZ/SK. Only Prague-based employees are required to work from the office at least 2 days//week.

Wellness & Lifestyle

- Wellbeing allowance
- MultiSport benefit program
- Wellness Coach app

SentinelOne is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

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

## About SentinelOne

## Company Overview
- **One-liner**: SentinelOne provides an AI-native autonomous security platform that unifies endpoint, cloud, and identity protection to help defenders stay ahead of cyber threats.
- **Entity Type**: Public (NYSE: S)
- **Headquarters**: Mountain View, California, USA
- **Founded**: 2013
- **Founders**: Tomer Weingarten (CEO, Co-Founder), Almog Cohen (Co-Founder)

## Core Business
- **Primary industry**: Cybersecurity (Endpoint Protection, Cloud Security, Identity Security, AI Security)
- **Target customers**: B2B, Global 2000 enterprises, including four of the Fortune 10 and hundreds of the Fortune 500
- **Mission or purpose statement**: “To give the advantage to those who secure our future” – with a vision of “A Safer Future for Humanity”

## Products & Services
- **[Singularity Platform]**: AI-driven autonomous security platform that unifies prevention, detection, response, remediation, and forensics across endpoint, cloud, and identity environments. Type: SaaS / Platform.
- **[Purple AI]**: Security AI assistant that helps analysts investigate, hunt threats, and automate workflows. Type: SaaS / AI tool.
- **[Cloud Security]**: Cloud workload protection, Cloud Detection and Response (CDR), and Kubernetes security. Type: SaaS.
- **[Identity Security]**: Protection against identity-based attacks, including AD forgery, lateral movement, and credential theft. Type: SaaS.

## Market Standing
- **Valuation/Market Cap**: Not provided in search results; refer to public financial data (NYSE: S).
- **Key Metric**: Annual revenue not stated in provided materials; latest known revenue (FY2025) ~$725M (source not in search results). Total employees: 2,830 (from Built In, 2025).
- **Notable Investors/Partners**: No specific investors listed (public company). Key partners include leading Global 2000 enterprises, Gartner (named a Leader in 2026 Magic Quadrant for Endpoint Protection Platforms for six consecutive years).
- **Growth Signals**: 12 offices worldwide; recognized as a Fortune Best Place to Work in Tech (2024, 2025); Fortune Future Fifty company; Great Place to Work certified in 17+ countries; growing remote and in-office headcount.

## Competitive Advantages
- **AI-native architecture**: Started with AI at the core, not bolted on – enables autonomous, machine-speed detection and response.
- **Unified platform**: Covers endpoint, cloud, identity, and AI security in a single agent and console, reducing complexity for security teams.
- **Industry validation**: Named a Leader in Gartner Magic Quadrant for six consecutive years; trusted by some of the world’s largest organizations.
- **Autonomous response**: Fully automated remediation, reducing manual intervention and mean time to respond (MTTR).

## Strategic Focus
- **Current priorities**: Expanding the Purple AI assistant, deepening cloud and identity protection, and enabling real-time, cross-platform autonomous defense at scale.
- **Direction**: Build the operating model for AI-era security – where machines scale and humans guide – to give defenders a persistent advantage.

## Why Work Here
- **Culture**: Core values – Accountability, Relentlessness, Ingenuity, Trust, Community, OneSentinel. Emphasizes inclusion, innovation, and customer-first mindset.
- **Work environment**: Flexible – many roles offer remote options (US-Remote listed), with physical offices in 12 locations globally for those who prefer on-site.
- **Perks & benefits**: Industry-leading compensation; 16 weeks gender-neutral parental leave; unlimited PTO; medical/dental/vision; gym reimbursement; mental health & mindfulness programs; stock programs (RSUs, ESPP); 401(k); legal assistance; apprenticeship programs.
- **Growth opportunities**: Job training, conferences, talent development; early-career internships and apprenticeship programs; diverse employee resource groups.
- **Recognition**: Fortune Best Places to Work in Tech (2024, 2025); Fortune Future Fifty; Best Place to Work for Parents; Great Place to Work certified across multiple countries.

## Sources
1. [SentinelOne Careers](https://www.sentinelone.com/careers/)
2. [SentinelOne Company Page](https://www.sentinelone.com/company/)
3. [SentinelOne Homepage](https://www.sentinelone.com/)
4. [SentinelOne Open Positions](https://www.sentinelone.com/jobs/)
5. [Built In – SentinelOne Profile](https://builtin.com/company/sentinelone)
6. [Greenhouse Careers Portal](https://job-boards.greenhouse.io/sentinellabs)

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