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QA Automation Engineer – Web3 (Europe)

Braintrust is hiring an experienced QA Automation Engineer to lead testing initiatives for advanced Web3 protocols and blockchain integrations.

This role involves performing functional and automated testing while ensuring seamless transaction workflows across decentralized applications and wallet connections in a fast-paced environment.

Candidates will gain valuable experience within a cutting-edge technological landscape, focusing on smart contract verification and cross-platform mobile and web application testing.

We offer professional growth opportunities for engineers proficient in TypeScript, JavaScript, or Python who thrive on solving complex technical challenges.

Private
full-time
Spain

Jobs Date Posted: 03 November, 2026
Jobs Last Date to Apply: 18 December, 2026
Industry: Information Technology
Jobs Industry Type: Private
Job Hiring Organization: Braintrust
Experience Required (In months): 36
Occupational Category: Software Engineer
Employment Type: full-time
Advertisement Source: Eurojobs
Job Location: Euskadi
Address Region: Basque Country
Country of Appointment: Spain
Postal Code: 48001
Employer Department: Quality Engineering
Employer Contact Phone: 92209423233
Employer Address: Euskadi, Spain
Street Address: Euskadi
Work Hours: Standard Business Hours
🎓 Qualifications Required
BA
📌 Job Positions:

Further Details

Join Braintrust as a QA Automation Engineer to drive innovation in blockchain technology through robust automated testing frameworks. We are seeking technical experts to manage end-to-end integration testing for decentralized finance platforms, ensuring high-quality performance in the evolving Web3 ecosystem. Explore these high salary jobs with competitive benefits. This position requires expertise in smart contract testing, CI/CD pipelines, and modern scripting languages like TypeScript or Python. Applicants will benefit from international collaboration and exposure to state-of-the-art AI development tools while maintaining rigorous regression testing standards.

Senior QA Automation Engineer – Web3 Career Opportunities

Braintrust is currently seeking a highly skilled Software Engineer specializing in Quality Assurance for their Web3 initiatives. This role is perfect for professionals looking for challenging work in the decentralized technology sector, offering significant opportunities for professional growth in the European market.

  • Focus: QA Automation for Web3, Smart Contracts, and Blockchain flows.
  • Technical Stack: Playwright, Cypress, TypeScript, Python, and CI/CD pipelines.
  • Benefits: International collaboration, career development in cutting-edge tech, and fast-paced environment.
Sr.#Job TitleQualificationLocationExperience
1QA Automation EngineerBachelorSpain3-5 Years

Skills

  • Proficiency in automated testing tools like Playwright or Cypress
  • Scripting expertise in TypeScript, JavaScript, or Python
  • Deep understanding of Web3 protocols, smart contracts, and wallet integrations
  • Experience in manual and functional testing of web and mobile applications
  • Ability to manage bug reporting in Jira or Linear effectively
  • Familiarity with CI/CD workflows and blockchain state verification

Duties and Responsibilities:

  • Design and execute comprehensive test plans for decentralized applications
  • Perform routine regression testing to ensure software stability
  • Collaborate with international teams across various time zones
  • Manage and configure test environments for CEX integration testing
  • Utilize AI development tools to optimize test authoring speed
  • Verify on-chain behavior and transaction signing workflows

How to apply

  • 👉 Click the 'Apply Now' link provided below to visit the official portal.
  • 📝 Prepare your updated technical CV highlighting your experience with blockchain, Web3, and automated testing tools.
  • 🌐 Ensure your portfolio includes past projects involving smart contract verification or mobile/web automation.
  • ⏳ Submit your application before the deadline of 18 December, 2026.
  • 📢 Successful candidates will be contacted for technical evaluation and interviews.



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