# Software Testing Engineer \(NXJ-196\) - Company: [Newxel]() - Location: Ukraine - Remote: Yes - Team: Newxel - Employment type: Full Time - Posted: September 3, 2026 ## Job description ## The Role You will take complete ownership of quality across an ecosystem that serves real-time retail audio, ad campaigns, and IoT hardware streams daily. The core technical challenge is ensuring absolute reliability across a fragmented architecture—spanning four web apps, Python services, edge devices, and mobile platforms. You will establish the testing framework from scratch, migrating manual verification into *AI*-assisted test automation that dictates production releases. ## About the Product The product is an in-store *AI* audio and ad-tech platform that streams dynamic music, live announcements, and location-targeted campaigns to physical retail spaces. It runs on a distributed architecture handling multi-tenant web portals, complex ad-auction engines, mobile interfaces, and custom hardware playback devices operating in low-reliability network environments. **Technology Stack:** The backend is built in Python, while the web interfaces use React and TypeScript alongside a React Native mobile player. Infrastructure and edge environments rely on Raspberry Pi running embedded Linux, orchestrated via Docker Compose, git, and GitHub Actions for CI/CD. Test engineering leverages Claude Code and Cursor for *AI*-generated automation across Playwright, Pytest, and custom CLI/Bash tooling. ## What You’ll Be Doing * 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 ## What We Expect ### **Must-have** * 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 ### **Nice-to-have** * 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 ## Why This Role Is Worth Your Time * 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 ## Apply [Apply on Newxel]() Canonical job page: