Staff Software Engineer

Details

At SentinelOne, we’re redefining cybersecurity by pushing the limits of what’s possible—leveraging AI-powered, data-driven innovation to stay ahead of tomorrow’s threats.

The EventDB team is responsible for SentinelOne's highly scalable columnar database which ingests petabytes of data and trillions of events per day. EventDB (born from the acquisition of Scalyr/DataSet) is engineered to efficiently scale to exabytes and is a critical component of our security and data infrastructure.

Responsibilities

• Implement and maintain high-quality production code (70–80% of time; primarily Java). Write robust tests and ensure secure code.
• Lead features and epics; architect end-to-end solutions for complex, loosely defined problems.
• Document design trade-offs, critical implementation details, and data structures.
• Review technical specifications and provide meaningful feedback to peers; mentor and inspire other engineers.
• Champion code quality, security, and efficiency through thorough code reviews.
• Participate in support and on-call rotation to troubleshoot outages and handle security incidents.
• Collaborate cross-functionally with engineers, tech leads, architects, product management, sales, and marketing.

Requirements

• Multiple years of practical software engineering experience with a solid computer science background.
• Proven expertise designing and operating distributed systems at scale.
• Strong proficiency in Java (multiple years of hands-on experience). Deep familiarity with the JVM and garbage collection tuning.
• Experience or familiarity with cloud platforms (AWS, GCP) and cloud security (FedRAMP referenced).
• Experience with container orchestration and tooling: Kubernetes, Docker, Helm.
• Familiarity with streaming and caching technologies such as Kafka and Redis.
• Experience with CI/CD tooling such as Jenkins and code hosting like GitHub.
• Experience with columnar databases, large-scale data ingestion, and working with products like DataSet; familiarity with databases such as Cassandra is a plus.
• Strong system design, algorithms, and data-structure skills; comfort reasoning about CAP theorem and trade-offs.
• Collaborative mindset, mentoring experience, and pragmatic problem-solving approach.

Tools & Technologies Mentioned

• Java, JVM (garbage collection tuning)
• AWS, GCP, FedRAMP
• Kubernetes, Docker, Helm
• Kafka, Redis
• Jenkins, GitHub
• DataSet / EventDB
• Cassandra (mentioned as a technology referenced in context)

Compensation & Relocation

• Yearly total compensation starting from approximately 2,440,000 CZK (equivalent to ~100,000 EUR/year). Final base salary will be adjusted based on skills and experience. Total compensation includes annual performance bonus (paid in two instalments) and Restricted Stock Units with a 4-year vesting schedule (1-year cliff, then quarterly), plus annual stock refresh opportunities.
• Relocation assistance (financial & administrative) is provided for candidates willing to relocate to Prague. Note: relocation assistance is available only for candidates who are already eligible to work in the EU at the time of applying.

Work Location & Policy

• Flexible hybrid work in Prague (Karlin) and Brno (Clubco), or remote across Czech Republic and Slovakia. Prague-based employees are required to work from the office at least two days per week.

Benefits

• Restricted Stock Units (4-year vesting), annual performance bonuses, employee stock purchase plan.
• Flexible Time Off plus standard 5 weeks vacation, flexible paid sick days, short term sick/nursing leave, parental leave, grandparent leave, and additional company holidays.
• Private medical care (English-speaking) for employee and +1, pension insurance contribution, premium life insurance, global employee assistance program.
• Monthly meal and well-being allowance, high-end MacBook/Windows laptop, work-from-home support, in-office refreshments.
• Learning and growth support: LinkedIn Learning, internal mentoring, educational support, generous referral bonuses, and optional company events.

SentinelOne is an Equal Employment Opportunity and Affirmative Action employer. The company participates in the E-Verify Program for all U.S.-based roles.