Staff Platform Engineer

About Us:

SentinelOne is defining the future of cybersecurity through our XDR platform that automatically prevents, detects, and responds to threats in real-time. Singularity XDR ingests data and leverages our patented AI models to deliver autonomous protection. With SentinelOne, organizations gain full transparency into everything happening across the network at machine speed – to defeat every attack, at every stage of the threat lifecycle.

We are a values-driven team where names are known, results are rewarded, and friendships are formed. Trust, accountability, relentlessness, ingenuity, and OneSentinel define the pillars of our collaborative and unified global culture. We're looking for people that will drive team success and collaboration across SentinelOne. If you're enthusiastic about innovative approaches to problem-solving, we would love to speak with you about joining our team

Join us as a Staff Platform Engineer and play a crucial role in designing and building our cloud-native data & caching infrastructure, serving hundreds of engineers in dozens of product/engineering teams at S1

SentinelOne's vision of one autonomous cybersecurity platform depends on our ability to collect, store, and analyse data efficiently. If you are interested in building infrastructure for data platforms that run reliably with 99.99% uptime, can scale to over 9 Petabytes of data ingested every day (and 3+ Trillion events processed), and return queries with p95 latencies less than 5 seconds, you will love this opportunity.

• Lead the design & operation, and own end-to-end platform experience of mission-critical distributed data services - such as Kafka, Redis or others - running at massive scale across Kubernetes clusters (EKS, GKE) and multi-cloud environments
• • This will involve e.g. managing the data & caching infrastructure of SentinelOne, supporting Petabytes/day ingestion, ensuring low-latency, high-throughput, and cost-effective operation at a global scale; consolidating and optimizing multi-tenant Kafka clusters to reduce cost, improve resilience, and streamline operations, and more
• Unlock complete cloud portability for SentinelOne's services by building a highly automated, self-service infrastructure that can run seamlessly across AWS, GCP, and air-gapped on-prem environments
• Drive lifecycle automation for the owned distributed data services, using GitOps principles and tools (GitHub Actions, ArgoCD, Terraform), reducing operational toil and minimizing pager fatigue
• Define and implement standards for observability, HA, backup, and DR of workloads in Kubernetes
• Partner with FinOps and engineering stakeholders to continuously optimize performance, cost, and operational overhead across data platform components

• Multiple years of experience in infrastructure/platform/DevOps engineering, with a proven track record of operating distributed systems at scale
• Solid understanding of Kubernetes, and best practices for managing both stateless and stateful workloads in production environments
• Exposure to multi-cloud environments with strong expertise in at least one major provider: AWS, GCP, or Azure
• Experience with IaC and GitOps practices and tools (Terraform, ArgoCD etc.), solid understanding of CI/CD pipelines and workflow automation (GitHub Actions, Argo Workflows, etc.)
• Familiarity with advanced deployment strategies (blue-green, canary, rolling)
• Strong scripting or development skills (e.g., Python, Go, or similar)
• Nice to have (or you'd learn and gain with us): Experience with self-hosted Kafka and/or Redis running in Kubernetes (including performance tuning, scaling, partitioning, persistence, and operator-based lifecycle management); experience with other messaging systems or data stores (e.g. Cassandra, ClickHouse) and with providing Database- or Messaging-as-a-Service (DBaaS/PaaS) for internal development teams or external customers

Join a cutting-edge company tackling extraordinary challenges alongside top industry talent. Enjoy flexible hybrid work in Prague (Karlin), Brno (Clubco), or remotely across CZ/SK. Only Prague-based employees are required to work from the office at least two days per week.

Competitive Benefits Package:

• Stock & Bonuses: Grant of Restricted Stock Units with a 4-year vesting plan, annual performance-based bonuses, and an employee stock purchase plan.
• Time Off & Well-being: Flexible Time Off, on top of the standard 5 weeks vacation, flexible paid sick days, fully paid Short Term Sick/Nursing Leave, 16-week parental leave, grandparent leave, and additional company holidays.
• Insurance & Health: Pension Insurance Contribution, Premium life insurance, Private medical care (for you and +1), and a Global Employee Assistance Program.
• Work Perks: Monthly meal and well-being allowance, high-end MacBook/Windows laptop, work-from-home support, and in-office refreshments.
• Growth & Community: LinkedIn Learning, internal mentoring, educational support, generous referral bonuses, and optional company events (sports, BBQs, charity).

Be part of an inclusive, innovative workplace that values belonging, flexibility, and growth