Krakow, Poland Remote (Country)

Fluxon is hiring a Senior QA Engineer (Manual)

About the Role

Shape quality from the ground up as a Senior QA Engineer in a role that goes beyond test execution. You'll design and refine end-to-end QA strategies for complex products, focusing on manual and exploratory techniques that uncover issues automated systems might miss. Your work will ensure not only technical correctness but also a seamless, intuitive user experience.

What You’ll Do

  • Develop and lead manual testing strategies for full product lifecycles, adapting approaches to meet evolving technical and business needs
  • Conduct in-depth exploratory testing, probing edge cases and real-world usage patterns to expose hidden defects
  • Act as the primary advocate for quality, guiding teams to adopt best practices and embed quality early in the development process
  • Track, document, and report on key quality metrics, providing clear insights into product health for engineers, product managers, and clients
  • Collaborate with product and technical leads to define acceptance criteria and support release decisions
  • Lead investigations into critical quality issues, coordinating with cross-functional teams to identify root causes and implement lasting fixes

What We’re Looking For

  • At least 5 years of hands-on testing experience with web, mobile, and API-based systems
  • Proven ability to lead QA independently on complex projects, building strategy and process from the ground up
  • Strong technical intuition—comfortable using DevTools, Postman, and other API clients to investigate system behavior
  • Deep understanding of client-server interactions and modern software architectures
  • Experience integrating manual testing into CI/CD workflows and contributing to release cycles
  • Skill in maintaining clear, actionable test documentation and communicating results across technical and non-technical audiences
  • Ability to assess risk, articulate tradeoffs, and prioritize testing efforts based on impact
  • Self-driven, curious, and committed to continuous improvement in both testing methods and software quality
  • Fluency in written and spoken English at an upper-intermediate level or higher

How We Support You

  • Remote-first culture with flexibility to design your ideal work environment
  • Flexible paid time off—minimum of 3 weeks plus holidays
  • No internal meetings on Fridays, enabling deep, focused work
  • Professional development budget for courses, conferences, or skill-building of your choice
  • Monthly wellness allowance to support mental and physical health
  • Localized healthcare coverage for you and your family
  • Annual in-person gatherings to strengthen team connections
  • Competitive compensation, profit-sharing, and a paid sabbatical program for long-term renewal

Our Culture

We value curiosity, humility, and ownership. Our team takes pride in solving meaningful problems with integrity, while maintaining rich lives outside of work. We believe kindness and care should underpin every interaction—how we build software and how we support one another.

Required Skills
Manual TestingAPI TestingWeb TestingMobile TestingPostmanDevToolsCI/CDTesting StrategyClient-Server ArchitectureUser Experience manual testingAPI testingPostmanDevToolsCI/CDtest strategyclient-server architectureweb applicationsmobile applicationsbug detectionuser experiencerelease cyclestechnical auditsQA leadership
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10+ years experience
About company
Fluxon
A product development team founded by ex-Googlers and startup founders that offers full-cycle software development from ideation and design to build and go-to-market. We partner with visionary companies, ranging from fast-growing startups to tech leaders like Google and Stripe.
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Job Details
Category qa_testing
Posted 9 days ago