SentinelOne

Software Engineer Intern (React)

SentinelOne  •  Brno, CZ (Onsite)  •  4 hours ago
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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.

As an Software Engineer Intern, you will be tasked with building and testing React-based UI components at the platform level.

You will get hands-on exposure to industry-standard development workflows and tools, including GitHub, Jenkins, and GitHub Actions, working alongside experienced engineers to understand how production-grade frontend systems are built and maintained.

You will have the opportunity to contribute to highly scalable, maintainable, and robust codebases while leveraging modern AI-assisted development tools like Claude Code to grow your skills and productivity.

What Will You Do?

Primary responsibilities include

  • Help shape the InfraTable platform component by developing new features, addressing technical debt, and improving the developer experience.
  • Collaborate with Product Management, UX and other engineers on the strategic direction of the component.
  • Be accountable for features from the requirements refinement phase to the successful production deployment.
  • Provide constructive feedback during code reviews to support continuous improvement.
  • Develop React-based UI components for the platform, following existing design, code standards, unit tests, E2E tests, and documentation.
  • Write clean, well-structured code to implement responsive and accessible frontend interfaces.
  • Support the team in documenting and improving frontend workflows, flagging issues and suggesting small improvements as you learn the codebase.

What Skills and Knowledge Will You Bring?

Ideal candidates will have:

  • Hands-on familiarity with React and JavaScript/TypeScript through personal or academic projects.
  • Basic understanding of CSS and responsive design principles.
  • Comfort using Git and GitHub for version control (even at a basic level — commits, branches, pull requests).
  • A keen eye for UI quality and detail — able to spot visual inconsistencies and usability issues during testing.
  • Demonstrated problem-solving mindset — ability to break down issues methodically, debug independently, and seek help when genuinely stuck.
  • Basic awareness of AI-assisted development tools such as Claude Code, and openness to using them responsibly to improve productivity and code quality.

Our global internship program trains the next-generation of cybersecurity talent across a range of specializations, from threat intelligence to information security, engineering and marketing. Interns can learn about the network security industry from leading thinkers, grow their professional networks, and be part of a career-defining experience including:

  • 1:1 mentorship throughout your internship
  • Flexible working hours adjusted to your academic schedule (20 hours/week, 6-month program: October 5, 2026 – April 2, 2027)
  • Hands-on experience with challenging, meaningful projects
  • Access to training and professional development opportunities
  • Networking connections with recent graduates and employees across the company
  • Leadership speaker series featuring senior leaders and industry experts
  • A fun, engaging workplace with regular team events

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.

SentinelOne

About SentinelOne

SentinelOne is the world's leading AI-powered cybersecurity platform. The SentinelOne Singularity platform, built on the first unified Data Lake, is revolutionizing security operations, with AI, solving use cases across Endpoint Protection, SIEM, Cloud Security, Identity Threat Detection and 24x7 Managed Threat Services.

SentinelOne empowers the world to run securely by creating intelligent, data-driven systems that think for themselves, stay ahead of complexity and risk, and evolve on their own. Leading organizations—including Fortune 10, Fortune 500, and Global 2000 companies, as well as prominent governments – trust SentinelOne to Secure Tomorrow™. Learn more at sentinelone.com.

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We are recognized in leading 3rd party forums such as;

- Gartner Endpoint Protection Magic Quadrant as a Leader 2021, 2022, 2023, 2024, 2025

- Gartner Peer Insights Customer Choice for Endpoint Protection

- Gartner Peer Insights Customer Choice Managed Detection & Response

- Gartner Peer Insights Customer Choice Cloud-Native Application Protection Platform (CNAPP)

- G2 #1 Ranked Cloud Workload Protection Platform

- Mitre ATT&CK 100% Detections, No Delays 2020, 2021, 2022, 2023, 2024

- Mitre Managed Services 100% Major Step Detections

- Fortune Fifty 2024

- Deloitte Fast 500; 2019, 2020, 2021, 2022, 2023, 2024

- CRN Cloud & Security 100

- CRN Most Influential CEO's

- CRN Top 10 Coolest GenAI Products, PurpleAI

To learn more about our products and services, please visit our website at sentinelone.com to schedule a demo

Industry
IT & Software
Company Size
1,001-5,000 employees
Headquarters
Mountain View, California
Year Founded
2013
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