S

Senior QA Engineer

SevenPro • Ukraine

remote
Posted Oct 6, 2026
  • Role & seniority

    • Senior QA / Full-Stack QA (6–8+ years)

    • Technical problem-solver bridging QA and engineering teams

  • Stack/tools

    • Test/Tracking: Jira

    • Network/Debug: Wireshark, tcpdump

    • Automation/Scripting: Python, Bash, JavaScript

    • Environments/Infra: Windows & Linux, Docker, ESXi/virtualization

    • Security/Networking concepts: OSI model; HTTP, DNS, IP, Firewalls; encryption principles

  • Top 3 responsibilities

    • Deliver full-stack testing across backend, frontend, and low-level/system components in fast release cycles (≈80% manual / 20% automated)

    • Trace root causes and troubleshoot complex issues in system code and UI

    • Define testing strategy and own end-to-end testing for new features; collaborate with R&D in Agile

  • Must-have skills

    • Strong SDLC + Agile QA expertise

    • Advanced backend/frontend/client-server API testing

    • Deep Windows + Linux OS knowledge

    • Networking & cybersecurity fundamentals (OSI, protocols, encryption)

    • Infrastructure/virtualization experience (Docker, ESXi)

    • Proficiency with Wireshark/tcpdump and Jira

    • Automation/scripting ability (Python/Bash/JS)

  • Nice-to-haves

    • Higher automation depth beyond the stated baseline (more than the 20% target)

    • Additional security testing depth (beyond fundamentals) and/or broader infra tooling familiarity

  • Location & work type

    • Remote-first

    • English-required (at least B1) for technical collaboration

Full Description

About you You are a senior-level QA professional who excels in complex, fast-paced environments. You are a natural problem-solver who enjoys tracing root causes and investigating intricate system behaviors. You thrive on technical responsibility and acting as a bridge between diverse engineering teams. You are self-motivated, highly organized, and comfortable balancing high-level strategy with a hands-on approach to quality. About the project We are building a leading cybersecurity platform designed to protect and monitor digital environments across the entire development lifecycle. The system covers everything from low-level system engineering and backend to frontend UX/UI, operating in a technically diverse environment with rapid growth and high-frequency releases. We focus on a blend of 80% manual and 20% automated testing to ensure functional excellence, performance, and security across all components. With a fast-paced deployment cycle, maintaining high-speed integration and system reliability is critical to our mission. Your areas of responsibility

Full-Stack QA: Deliver high-quality testing for backend, frontend, and low-level system components at a fast deployment pace.

Problem Solving: Apply an "out-of-the-box" approach to trace and troubleshoot complex bugs in system code and user interfaces.

Strategic Testing: Define test strategies and handle end-to-end testing of new features.

Collaboration: Work closely with Research and Development engineers to ensure seamless feature integration in an Agile environment. Skills and requirements 6–8 years of professional experience as a QA Engineer with a deep understanding of the SDLC and Agile methodologies. Full-stack testing expertise, including advanced proficiency in backend, frontend, and client-server API testing. In-depth Operating System knowledge, with extensive experience in both Windows and Linux environments. Comprehensive Networking & Security acumen, including the OSI model, data protocols (HTTP, DNS, IP, FW), and encryption principles. Infrastructure & Virtualization experience, specifically with technologies such as ESXi and Docker. Expert command of industry tools, including Jira for bug tracking and Wireshark or tcpdump for network and application monitoring. Automation & Scripting capabilities, including test automation execution and proficiency in Python, Bash, or JavaScript. English proficiency (at least B1), ensuring effective communication within a technical team. We offer A real opportunity to influence the product, architecture, and technical decisions; Direct communication with C-level management, without unnecessary bureaucracy; Remote-first environment; Long-term and enjoyable cooperation; 20 paid working days of vacation per year; 5 paid undocumented sick days; Official public holidays as days off; Personal legal support; English classes; Team-building events and a friendly, supportive atmosphere.

Full-stack testingBackend testingFrontend testingAPI testingWindowsLinuxNetworkingSecurityOSI modelESXiDockerJiraWiresharkPythonBashJavaScript

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