Senior Staff Software Engineer (Go/Java + React) - Agent Platform team

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.

As a Senior Staff Software Engineer on the Agent Platform Detection team, you will be the technical visionary responsible for defining and evolving the architecture of our detection, triage, and response platform. You will lead the design and execution of backend systems and SaaS services that power alert propagation, alert lifecycle management, and response capabilities at extraordinary scale. Your technical leadership will bridge the gap between long-term architectural strategy and high-velocity product delivery, influencing how detection and response workflows are built and operated across SentinelOne's platform.

What Will You Do?

Primary responsibilities include:

• Architectural Vision: Define and drive the long-term technical roadmap for the Agent Platform Detection domain, owning the architecture of backend systems that power alert ingestion, triage, lifecycle management, and response workflows across SentinelOne's SaaS platform.
• System Design at Scale: Lead the design and implementation of highly available, cloud-native services that process billions of security events daily, ensuring alerts move reliably and efficiently from ingestion through investigation and action for the world's largest enterprises.
• Technical Leadership & Influence: Act as a key stakeholder in cross-organizational architectural reviews, ensuring the Detection platform provides the extensibility, reliability, and observability that other product teams depend on. Drive alignment across engineering, product, and design on the technical direction of the team's feature area.
• Full-Stack Depth: While backend-oriented, bring practical depth across the stack - owning and evolving frontend components in the SentinelOne console built in React and TypeScript, and ensuring complex detection and response workflows are exposed in a clean, usable, and performant way.
• Operational Excellence: Champion engineering best practices across the team, including advanced observability, alert health reporting, performance optimization, and the continuous improvement of runbooks, diagnostics, and incident response processes.
• Mentorship & Growth: Elevate the engineering bar by mentoring Staff and Senior engineers, fostering a culture of technical excellence, accountability, and proactive problem-solving across the team.

What Skills and Knowledge Will You Bring?

Ideal candidates will have:

• Extensive Backend Expertise: 12+ years of professional experience in backend development, with deep production-level mastery of Golang, Java, Python, or similar languages, and a strong track record of building and operating high-scale distributed services.
• Platform Thinking: Proven experience building and evolving platforms - not just features - with a focus on API design (gRPC, REST), service boundaries, multi-tenancy, and shared infrastructure in a high-scale SaaS environment.
• Full-Stack Capability: Practical frontend experience with React and TypeScript, with the ability to own production UI components and lead the frontend direction for a backend-heavy product area.
• Data & Distributed Systems: Expert-level knowledge of RDBMS (PostgreSQL), query optimization, and extensive experience with high-throughput messaging systems such as Kafka and distributed caches such as Redis.
• Cloud-Native Proficiency: Deep experience with AWS/GCP, Kubernetes, Docker, and modern CI/CD patterns in a hyper-scale SaaS environment.
• Strategic Communication: Ability to articulate complex technical trade-offs to both technical and non-technical stakeholders, including Product Management, Directors, and VPs.
• Cybersecurity Context: (Bonus) Familiarity with security event processing, alerting systems, detection and response workflows, or endpoint and security products in a high-growth cybersecurity context.

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

• Competitive leave benefits
• Gender-neutral parental leave
• Employee Assistant Program
• Workout sessions and a Wellness App

Insurance & Financial Security

• Medical and insurance benefits
• Pension
• Employee Assistance Program (EAP)

Work Perks & Flexibility

• Global home office allowance
• Mobile phone reimbursement
• Study Fund

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.