newxel - Software Testing Engineer (NXJ-196)
Requirements
• Computer Science degree or equivalent demonstrated depth through complex side projects, hardware builds, or competitive programming • Advanced command-line proficiency (Linux CLI, SSH, process management, shell scripting, log analysis) • Solid comprehension of distributed web architecture, API contracts, client-server interactions, and database behavior • High degree of autonomy with a natural tendency toward systematic edge-case discovery • Fluent spoken and written English with overlap for UTC+2 working hours • Hands-on experience with AI-assisted software generation (Claude Code, Cursor) • Exposure to embedded Linux, Raspberry Pi, or home-lab infrastructure • Familiarity with test frameworks such as Pytest, Playwright, Vitest, or Cypress
Responsibilities
• Establish the release gatekeeping strategy to independently approve or block production deployments across all platforms • Convert manual hardware and software validation rules into automated regression suites using Claude Code • Engineer end-to-end UI automation across four web applications using modern execution frameworks like Playwright • Develop API integration tests validating real-time ad serving, playlist generation, and transactional event reporting • Expand Docker Compose test environments to automate real-time streaming validation for Raspberry Pi edge devices • Conduct physical edge-device testing to verify hardware power-loss recovery, local caching, and ad-insertion timing • Author structured, edge-case-driven test documentation and step-by-step verification protocols in Notion • Trace system failures directly through server logs, SSH sessions, and CLI diagnostics to deliver isolated bug reports
Benefits
• Full authority over the release decision pipeline—your sign-off directly controls what goes to production • Early adoption of modern AI-first engineering workflows where test generation is built via AI pair-programming tools • Direct ownership over end-to-end software and hardware execution loops, giving you broad operational reach across web, API, mobile, and IoT systems
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