Senior Staff Software Engineer - Saas Platform

What are we looking for?

At SentinelOne, we’re transforming one of our core systems into a scalable modern microservices architecture. To help us achieve that, we’re seeking a Senior Staff Software Engineer (senior tech lead / architect) colleague for a new key role to drive this transformation and define the next generation of our platform.

• This is a high-visibility, high-impact role, where you’ll undertake an ambitious initiative to break down a complex monolithic system written primarily in Python into a scalable, multi-tenant, cloud-native set of services, built using modern technologies and approaches. The system is part of our flagship Endpoint productline (empowering and protecting our customers, and recognized 4 times in a row as Gartner Magic Quadrant Leader).

• In this role, you will work across SentinelOne engineering organization on this re-architecture with multiple engineering and PM leaders and teams. In our area, we value collaboration, innovation, creativity, and technical excellence.
• You’ll deal with the scale of globally deployed SaaS product across 6 AWS/GCP regions, that altogether process daily petabytes of data ingested and hundreds of billions of events from tens of millions of endpoints we protect at our enterprise & public sector clients across the globe, incl. 4 of Fortune 10 & hundreds of Global 2000 companies.

If you are passionate about impactful, high-stakes projects, this is your opportunity to shine!

What will you do?

• Architect the Future: You’ll dive deep into our current monolithic architecture, identify pain points, and design innovative solutions to address them in an iterative way. You’ll lead the design and development of a new microservices architecture that supports scalability, maintainability, and operational excellence.
• Modernize the Stack: You’ll collaborate with teams to evaluate and implement the right tools, frameworks, and methodologies for building a robust microservices ecosystem.
• Hands-on Development: You’ll write high-quality, production-ready code.
• Mentor and Lead: You’ll guide and mentor other engineers, contribute to their professional growth, share best practices and architectural insights, and foster a culture of engineering excellence.
• Collaborate Across Teams and Orgs: You’ll partner with other engineering, product, design, quality, DevOps/Infra teams and leadership to align on objectives, design, timelines, and execution strategies.

Our stack: Java, Go; Kubernetes, Docker, AWS, GCP, FedRAMP; GitHub Actions, ArgoCD; GitHub Enterprise; depending on requirements of the service for communication we use Kafka, REST API, GraphQL, gRPC etc.; Postgres, MongoDB, Redis, ClickHouse; Prometheus/Thanos, Grafana

What experience or knowledge should you bring?

• Multiple years of extensive software engineering experience, including proven expertise in architecting large-scale distributed systems and microservices architecture, with a focus on performance, scalability and reliability
• Experience in leading the transition from monolith to microservices is highly desirable.
• Proficiency in Java and/or Go, experience with Python is a plus
• Extensive experience with cloud platforms (AWS and/or GCP) and Kubernetes
• Excellent problem-solving skills
• Strong communication skills and ability to articulate technical concepts and influence engineering direction across teams, departments and stakeholders

Why Us? 

You will work on real-world problems and make an impact by protecting our customers from cyber threats. You will be joining a cutting-edge project and will be able to influence the architecture, design, and structure of our core platform. You will tackle extraordinary challenges and work with the very BEST in the industry.

On top of that we offer you

• Flexible working hours, In Prague & nearby we're working in a hybrid model with offices in Karlin (brand new Missouri Park), remotely in the rest of CZ or SK, with optional Brno offices (Clubco Vlněna) for those who like to meet
• Generous employee stock plan in the form of RSUs (restricted stock units) grant not options; 4 years vesting with 1-year cliff and then quarterly
• Yearly bonus depending on the performance of the company, paid out in 2 installments
• Flexible Time Off (on top of the standard 5 weeks of vacation)
• Flexible Paid Sick Days
• Fully Paid Short Term Sick/Short Term Nursing Leave
• Global gender-neutral Parental Leave (16 weeks, beyond the leave provided by the local laws) & Grandparent Leave
• Volunteering paid day off & Additional paid Company holidays off 
• Pension insurance contribution
• Premium Life Insurance covered by S1
• Monthly Meal & Wellbeing Allowance
• Private medical care membership (English speaking) for you and your +1
• Global Employee Assistance Program (confidential counseling related to both personal and work life matters), Wellness Coach:Mind Body Sleep app company access (sessions, audiobooks, classes, private coaching etc.)
• High-end MacBook or Windows laptop, Home-office-setup gear & on top of that additional WFH Allowance
• LinkedIn Learning platform for Hard/Soft skills Training, internal mentoring 'MentorOne' & Support for your further educational activities/trainings
• Above-standard referral bonus
• On top of RSUs, you can benefit also from our attractive ESPP (employee stock purchase plan)
• Refreshments and snacks at the offices
• Optional company events for those who like to meet outside of work too (sport, BBQ, charity etc.)