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Senior Backend Developer

Spain, Barcelona · Job Posted February 16, 2026
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Job Description

BioCatch is the leader in Behavioral Biometrics, a technology that leverages machine learning to analyze an online user’s physical and cognitive digital behavior to protect individuals online. BioCatch’s mission is to unlock the power of behavior and deliver actionable insights to create a digital world where identity, trust, and ease coexist.Today, 34 of the world's largest 100 banks and 210 total financial institutions rely on BioCatch Connect™ to combat fraud, facilitate digital transformation, and grow customer relationships.. BioCatch’s Client Innovation Board, an industry-led initiative including American Express, Barclays, Citi Ventures, and National Australia Bank, helps BioCatch to identify creative and cutting-edge ways to leverage the unique attributes of behavior for fraud prevention. With over a decade of analyzing data, more than 80 registered patents, and unparalleled experience, BioCatch continues to innovate to solve tomorrow’s problems. For more information, please visit www.biocatch.com.

Job Responsibility

  • Building core services and APIs that can handle high volumes of real-time traffic and meet strict SLA response times
  • Handling complex scenarios involving the collection, aggregation, and research of big data

Requirements

  • At least 5 years of experience in developing software for large-scale systems
  • At least 3 years of experience with Python or equivalent backend development experience, with a strong focus on building scalable and maintainable APIs and services
  • Experience in cloud architecture and microservices
  • Experience working on a CI/CD dockerized environment – Advantage
  • Leading technical projects - advantage
  • Responsible, well-organized, self-learning, and a team player
  • Capable of leading large tasks
  • Self & fast learning capabilities
  • Independence and persistence
  • Willing to handle a variety of unfamiliar tasks
  • Hebrew Proficiency - an advantage

Nice to have

  • Experience working on a CI/CD dockerized environment
  • Leading technical projects
  • Hebrew Proficiency

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