Senior Software Engineer (Java) - Scalable Columnar Database

What are we looking for?

We're excited to expand our team with passionate and skilled backend engineers, who are interested in solving non-trivial scale and data problems with a unique blending of cloud, distributed systems, and software optimization techniques and services. The EventDB team, as part of the Singularity Data Lake product line, is responsible for SentinelOne's highly scalable columnar database, which ingests Petabytes of data & hundreds of billions of events per day. Born from our acquisition of Scalyr/DataSet in 2021, EventDB is not just a regular database; it is engineered to efficiently scale to exabytes, serving as a critical component in our security and data infrastructure.

We're seeking a seasoned colleague able to collaborate effectively and lead features/epics and inspire others as a Senior Software Engineer. You will interact with engineers in and across the org, tech leads, architects, product management, sales, and marketing. Because our team’s work is closely tied to the user’s experience of our platform, your work will have an outsized impact on the company, on future customer-facing features, and on how customers leverage our platform in order to protect their business. If you thrive in an environment where collaboration, creativity, and technical excellence are valued, we're looking for you!

You will be joining one of the fastest growing publicly-traded SaaS companies, with a mission of ‘Empowering the World to Run Securely’. Together through our SW, we will serve thousands of users from security teams at enterprise & government customers across the globe (incl. 4 of Fortune 10 and hundreds of Global 2000), and protect tens of millions of endpoints, clouds & identities.

What will you do?

• Software Development (70-80% of your time; primarily Java) - Dive deep into coding, turning innovative specs into reality. Write robust tests, tackle bugs with finesse, and ensure top-notch security in your code.
• Understand architecture of the EventDB solution and connected features;
• Document trade-offs in solutions/implementations; Document critical implementation details/data structures; Review and provide feedback on other specs
• Provide guidance and meaningful feedback, understanding broader patterns and downstream and upstream dependencies
• Collaboration with cross-functional teams.
• Champion code quality, security, and efficiency. Your keen eye for detail will guide you in reviewing and elevating our codebase.
• Support and On-Call Rotation, be a problem-solver. Respond to and troubleshoot outage incidents, and address security issues promptly
• Team Collaboration - Be a team player. Assist your colleagues, share constructive feedback, and contribute to our weekly syncs and daily Slack standups.

Tools
Primarily modern Java; AWS & GCP, Kubernetes, Docker, Kafka, Redis, Ansible, Jenkins, GitHub, and DataSet (we love to dogfood our own product and are very vocal customers of it)

What skills and knowledge should you bring?

We do not require a perfect match with everything below; however, the more this describes you, the better of a fit you will be for this role!

• Solid computer science background with 4+ years of engineering experience.
• Proven expertise in designing and operating distributed systems.
• Strong proficiency in Java (3+ years of experience), you value elegant code that is concise and readable.
• Have you used tools like Jenkins, Helm, and Docker? Do you have infrastructure experience with AWS, GCP, K8s, etc? Experience with DynamoDB, Redis, or Druid? Great, that helps!
• A Collaborative, Curious, and Practical Mindset

If this sounds like you, we should talk:

• You are excited about opportunities to serve as a mentor and to play a pivotal role in fostering both technical excellence and team unity.
• You enjoy writing modern Java (we love lambdas) and prefer composition to inheritance.
• You can identify relevant algorithms in the literature & bring them into production when they fit.
• Your passion for understanding and solving complex engineering challenges is matched by your pragmatic approach to problem-solving.
• You're comfortable weighing in on CAP theorem considerations and are energized by selecting the data structure with the perfect trade-offs for a problem at hand.
• You believe that honing ideas and technical designs with other engineers is crucial for achieving an optimal solution.
• You’re looking for a challenge that doesn’t just require you to use technologies like Kafka and Cassandra, but requires you to rebuild them because they didn’t meet the project requirements.
• Garbage collection doesn’t faze you because you know the JVM like the back of your hand. You can rattle off the available garbage collectors and their tuning parameters.
• You value asking good questions because you believe “a problem well-stated is half-solved.”

Why us?

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!