Senior Platform Engineer (Developer Experience)

What Are We Looking For?

We are seeking an experienced Senior Infrastructure Engineer / Platform Engineer who will serve as a technical leader with dozens of engineering teams. You are someone who enjoys bridging the gap between software engineering and systems architecture, and not just managing infra, but building Internal Developer Platforms (IDP) and APIs that enable scalability, efficiency, productivity, and developer joy. You are a "doer" who can pivot from writing high-quality production code to influencing the architectural direction of our CI/CD pipelines and service catalogs (e.g., Backstage).

About the Team

The Developer Experience (DevEx) organization’s mission is to partner with SentinelOne engineering teams to accelerate the velocity of software delivery through continuous innovation and standardization. We are building the platform that serves nearly 1,000 engineers to release services and features to our customers, making it easy to move from POC to production safely and quickly.

You will deal with global scale: our security SW products protect 15,000 enterprise and government clients across the globe, incl. 4 of Fortune 10, and process 9+ Petabytes of data daily and 3+ Trillion security events across multiple AWS/GCP regions and GovCloud, supported by a large Kubernetes control plane with 80+clusters and tens of thousands of nodes.

What Will You Do?

• Partner to Engineers: The engineering teams are our primary customers. You will be working with them to understand their pain points and find long term solutions. You will be building tools that improve the quality of life and streamlining the development process for the teams so that they can build without having to worry about the underlying infrastructure.
• Build & Automate: You will be building tools that improve the quality of life and streamlining the development process for the teams so that they can build without having to worry about the underlying infrastructure. Building scalable solutions in collaboration with other infrastructure teams
• Modernize the Stack: Collaborate with architects to evaluate and implement modern tools (e.g., ArgoCD, GitHub Actions) and deployment strategies (Canary, Blue/Green).
• Operational Ownership: Identify causes of toil across engineering orgs and eliminate them through automation, enhancing overall system reliability and developer satisfaction.
• Cross-Functional Influence: Partner with Product, Security, and Finance teams to align technical roadmaps with business value and customer needs. 
• Impact: You will participate in the full software development lifecycle, including requirements analysis, architecture design, coding, testing, and deployment. 

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

What skills and experience you should bring:

• Demonstrated proficiency in Go or Python. Experience in the full SDLC, from requirements to production-ready code.
• Experience with AWS and/or GCP. Knowledge of Kubernetes or similar orchestration systems.
• Experience with CI/CD tooling at scale (e.g., GitHub Actions, ArgoCD, Jenkins etc.) and GitOps approach.
• Strong experience with Terraform, Pulumi, or similar IaC frameworks.
• Familiarity with DevEx fundamentals, including Service Catalogs (Backstage), REST APIs, or gRPC.
• Familiarity with both SQL (Postgres) and NoSQL (MongoDB, ClickHouse, or Redis).
• Excellent problem-solving skills
• Strong ownership and accountability
• Strong communication skills and ability to articulate technical concepts and influence engineering direction across teams, departments, and stakeholders in multiple time zones

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!