Principal Architect, SentinelOne
AI Developer Experience Platform
$216-300k
+ RSUs and ESPP
AI-powered enterprise cybersecurity platform
Open for applications
AI-powered enterprise cybersecurity platform
1001+ employees
Open for applications
$216-300k
+ RSUs and ESPP
1001+ employees
Company mission
To give the advantage to those who secure our future.
Role
Who you are
- 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
- 10+ years in software engineering, platform/dev tools, or infrastructure engineering, including significant experience operating at Staff/Principal level in a 300+ engineer product organization
- 3+ years designing and shipping LLM‑powered developer tools or workflows in production environments
- Proven track record of architecting developer platforms or large‑scale internal tooling used by hundreds of engineers
- Deep understanding of LLM context window design, retrieval strategies, prompt engineering at scale, and how they interact with large polyglot codebases
- Hands-on experience integrating at least one enterprise AI coding assistant into IDEs and Git hosting platforms
- Strong background in AST-based code analysis, static/dynamic analysis, and policy-as-code for automated PR review
- Solid understanding of CI/CD systems and progressive delivery and how to embed AI in those pipelines
- Strong grounding in security and compliance for SaaS and AI/ML systems
- Experience acting as a cross‑org technical leader: aligning Staff/Principal engineers, EMs, and PMs around a shared architecture and standard
- Comfortable presenting technical tradeoffs and ROI to senior leadership, and defending architecture choices with data
- Proven ability to mentor and partner with the entire Product and Technology organization to deliver complex multi‑quarter programs
- Excellent written and verbal communication skills; able to produce clear design docs, evaluation criteria, and developer‑facing guidance that drive alignment at scale
What the job involves
- 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
- As a Principal AI Developer Experience Architect, you will serve as the technical authority for the AI engineering layer at SentinelOne, designing how enterprise-grade AI coding assistants and LLM platforms integrate into our engineering workflows
- You will own the strategy and architecture that ensures AI-generated code is trustworthy, performant, and reliable by default for an 800+ developer organization
- Your work will ensure our AI tooling investment is secure, governed, and measurably impactful across context management, prompt design, and AI-driven code review
- Architect the AI Engineering Layer:
- Define the end‑to‑end architecture for AI-augmented development at SentinelOne, centered on enterprise-grade AI coding assistants and LLM platforms integrated with our IDEs, CI/CD pipelines, and internal platforms
- Design how large-context LLMs consume our codebase and documentation context so that AI assistance scales safely across hundreds of repos
- Establish reusable patterns for agentic workflows with clear rollback and validation strategies
- Own AI Guardrails, Skills, and Standards:
- Define and maintain SentinelOne AI Coding Standards and a global skills & requirements framework that all AI coding tools (our chosen AI coding assistants, PR bots, agents) must enforce, including language, framework, security, performance, and reliability patterns
- Translate these standards into prompt templates, tool configurations, and policy‑as‑code so they are enforced automatically rather than via documentation alone
- Partner with InfoSec, Data Governance, and Legal to ensure all AI tooling adheres to SentinelOne’s AI Policies, data residency, and FedRAMP compliance requirements
- Implement AI-Driven Code Review and Safety as Code:
- Lead the integration of AI-powered code review tools that use AST analysis and static/dynamic checks to enforce style, security, performance, and reliability standards before human review
- Integrate AI review signals with our SRE observability stack (logs, metrics, traces) to correlate code changes with incidents and anomalies, closing the loop from PR to production behavior
- Encode “safety as code” by integrating test coverage, performance scans, and progressive delivery patterns (canaries, blue/green) into AI‑authored change flows
- Lead Vendor Evaluation and Integration:
- Serve as the principal technical owner for AI developer tooling evaluations using structured evaluation criteria and data-driven analysis
- Work closely with the DevEx leadership and TPM to design and run POCs, define technical success criteria, and produce executive‑ready recommendations
- Ensure all vendors meet SentinelOne’s security, privacy, and data governance standards
- Drive Developer Adoption and Experience:
- Act as the technical face of AI DevEx to engineering: publish guidance, patterns, and internal frameworks that make AI tooling a seamless part of everyday work rather than a side experiment
- Partner with the AI Champions Network and Learning & Development to define curricula, hands-on labs, and “day‑in‑the‑life” workflows that level up prompt engineering and AI‑assisted development skills across developer organizations
- Collaborate across the SentinelOne developer community to translate adoption and productivity signals into DORA metrics and ROI narratives that are credible to Engineering Leadership, Finance, and the CFO
- Partner on Reliability, Metrics, and Governance:
- Work with SRE and Reliability Engineering to ensure AI‑accelerated delivery improves MTTR, CFR, and SLO performance
- Participate in the DevEx governance model to prioritize initiatives, manage risk, and align AI DevEx roadmaps with company objectives
- Own the engineering intelligence dashboards and leadership reports to surface the impact of AI tooling on developer productivity metrics
Our take
Cybercriminals are now leveraging the power of automation to make the current threat landscape too advanced for a lot of traditional antivirus software. SentinelOne is a cybersecurity company that matches this automation with machine learning-focused software designed to help businesses defend against online attacks.
The company has expanded beyond endpoint security into a broader AI-powered cybersecurity platform spanning endpoint, cloud, identity, and IT operations. This gives SentinelOne access to a larger enterprise market, although it also it also places the company in direct competitions with established cybersecurity leaders, including its biggest rival, CrowdStrike.
As cyberattacks become increasingly automated, the company is expanding its capabilities beyond detection to include AI-driven threat response, helping security teams contain attacks more quickly. While it still trails larger rival CrowdStrike in scale, SentinelOne is investing in platform expansion and automation to compete for enterprises looking to consolidate their cybersecurity into a single solution.
Steph
Company Specialist at Welcome to the Jungle
Insights
61% employee growth in 12 months
Company
Funding (last 2 of 9 rounds)
Feb 2021
$100m
LATE VC
Nov 2020
$267m
LATE VC
Total funding: $800.8m
Company 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
- Team building activities
- Celebrations and social gatherings
- Community volunteering events
- Global all hands and local town hall events
- 401K
Company HQ
Old Mountain View, Mountain View, CA
Leadership
Tomer Weingarten
(Co-Founder & CEO)Tomer began their career in Software Development at Mckit Systems prior to co-founding dPolls and Carambola Media. They left their position as VP of Products at Toluna in December 2012 to found SentinelOne in January 2013, where they have served as the CEO since.
Sonalee Parekh
(CFO)Prior to joining SentinelOne in 2026, Sonalee was the CFO at Asana and RingCentral. They also held senior roles at Hewlett Packard Enterprise, Jefferies, RBC Capital, Markets, Barclays Capital and Goldman Sachs.
Barry Padgett
(COO & President)Barry joined SentinelOne in 2025 as CGO before briefly serving as the CFO then moving into their current role as COO. Previously they spent 4 years at Amperity as COO and CEO and 1 year at Stripe as CRO.
Share this job
View 47 more jobs at SentinelOne