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Senior Software Engineer in Test - Test Platform

SentinelOne
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Hybrid (CZ/SK)Full-timePosted 5d ago

About the role

Senior role responsible for ensuring quality, reliability, and performance of SentinelOne's backend test frameworks and tooling within the Test Platform Services team, defining test strategies, building tools, and collaborating with backend development and quality teams to deliver high-quality SaaS services.

Responsibilities

  • Lead the design, development, and improvements of standards, test frameworks, and tools used in validation of backend SaaS services
  • Collaborate with development, quality and other stakeholders to understand requirements and translate them into effective tooling
  • Design, develop, and maintain automated test frameworks in Python (Pytest) and TypeScript (Playwright)
  • Integrate AI powered tools and workflows into the software development lifecycle (Generative AI and LLMs) to automate quality processes
  • Utilize Docker for containerization and manage test platform services in cloud environments
  • Continuously enhance test strategies to improve coverage, efficiency, and effectiveness of backend test harnesses and infrastructure
  • Mentor junior engineers and contribute to testing standards and processes
  • Stay up to date with industry best practices and emerging technologies in AI, tooling and QA
  • Work hands-on with development and validation teams to push consistency across codebases and tooling adoption

Qualifications

  • Bachelor's degree in Computer Science, Software Engineering, or related field
  • 5+ years of experience in tooling development, software quality assurance or validation engineering with SaaS focus
  • Proven experience leading test frameworks and defining comprehensive test strategies
  • Experience developing/maintaining automated test frameworks in Python (Playwright) and TypeScript or similar (Java)
  • Hands-on experience integrating AI tools/LLMs into QA workflows and CI/CD pipelines, including prompt engineering
  • Strong understanding of SDLC and Agile methodologies
  • Experience with AWS or GCP, Docker, Kubernetes; event-driven architectures (Kafka or similar); familiarity with CI/CD tools (Jenkins, GitHub, GitLab)
  • Excellent analytical and problem-solving skills
  • Ability to work independently and with distributed teams
  • Strong technical background in software automation development and a big-picture, can-do approach

Skills

Required:PythonTypeScriptPlaywrightDockerAWS or GCP
Nice to have:KubernetesCI/CD

Benefits

  • Restricted Stock Units (RSUs)
  • Employee Stock Purchase Plan (ESPP)
  • Performance-based bonus
  • Flexible time off (5 weeks PTO)
  • Paid wellness days and paid sick/nursing leave
  • Gender-neutral parental leave
  • Private medical care benefit
  • Life and disability insurance
  • Pension insurance contribution
  • Global travel medical insurance
  • Employee Assistance Program (EAP)
  • Global home office allowance
  • Meal allowance
  • Hybrid work in Prague (Karlin), Brno (Clubco) or remote in CZ/SK; Prague office requirement 2 days/week for Prague-based employees
  • Wellbeing allowance
  • MultiSport benefit program
  • Wellness Coach app
Last updated Oct 22, 2026. Interested? Apply on the company site.
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About SentinelOne

AI-Powered Enterprise Cybersecurity Platform

SentinelOne unifies AI-powered endpoint, cloud, identity, and data protection—enhanced by our Security Data Lake for seamless and efficient cybersecurity.

CybersecurityAI SecurityEndpoint SecurityCloud SecurityAI-SIEMIdentity SecurityEDRXDR
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