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Senior Software Engineer in Test - Test Platform

SentinelOne
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Hybrid (Prague (Karlin), Brno (Clubco), remote in SK)€4.1k/mo - €0/moFull-timePosted 5d ago

About the role

Senior Software Engineer in Test focused on backend test frameworks and tooling for SentinelOne's Test Platform Services, responsible for design, implementation, and maintenance of backend test frameworks and tooling 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) to enhance testing efficiency and coverage, working closely with the development and validation teams.
  • Integrate AI powered tools and workflows into the software development lifecycle, leveraging Generative AI and LLMs to automate quality processes and boost developer and validation productivity.
  • 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 the continuous improvement of testing standards, processes and methodologies.
  • Stay up to date with industry best practices and emerging technologies in AI, tooling and quality assurance.
  • Work hands-on with development and validation teams to push consistency across codebases and shepherd adoption of tooling.

Qualifications

  • A bachelor's degree in Computer Science, Software Engineering, or a related field, with 5 or more years of experience in tooling development, software quality assurance or validation engineering, with a strong focus on SaaS products.
  • Proven experience in leading test frameworks and defining comprehensive test strategies.
  • Experience developing and maintaining automated test frameworks in Python, using Playwright, TypeScript, or similar tools in other programming languages such as Java.
  • Hands-on experience integrating AI tools, LLMs, or AI-driven testing methodologies into daily QA workflows and CI/CD pipelines, including familiarity with prompt engineering and using AI assistants to streamline testing processes and automate repetitive tasks.
  • Strong understanding of software development lifecycle (SDLC) and agile methodologies.
  • Proven experience with AWS or GCP, and with Docker, Kubernetes, plus event-driven architectures using Kafka or similar tools; familiarity with CI/CD tools such as Jenkins, GitHub, or GitLab.
  • Excellent analytical and problem-solving skills.
  • Ability to work independently and collaboratively in a fast-paced environment with globally distributed teams, with a strong technical background in software automation development and a big-picture, can-do approach.

Skills

Required:PythonTypeScriptPlaywrightDockerAWS/GCPCI/CD
Nice to have:KubernetesAI in QA

Benefits

  • Salary starting from 4100 EUR/month.
  • Annual bonus based on company performance, paid in two installments.
  • Equity & Rewards: RSUs, ESPP, Performance-based bonus
  • Time Off & Wellbeing: Flexible time off, 5 weeks PTO, wellness days, paid sick/nursing leave, gender-neutral parental leave
  • Insurance & Financial Security: Life and disability insurance, Pension insurance contribution, global travel medical insurance, EAP
  • Work Perks & Flexibility: Global home office allowance, meal allowance, hybrid work in Prague or Brno or remote in SK; Prague-based employees must come to office at least 2 days/week
  • Wellness & Lifestyle: Wellbeing allowance, MultiSport, 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.

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