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Technology and IT

Senior Frontend Developer – Payment Solutions Full Time

Summary:

OnPay, part of team.blue, is seeking a Senior Frontend Developer to join a new team focused on expanding payment solutions across Europe. Operating remotely or from offices in Denmark, the Netherlands, the UK, Belgium, or Germany, this role drives the development of a JavaScript SDK for secure, seamless transactions, supporting millions of monthly merchant transactions in a dynamic, agile environment.

Responsibilities:

  • Take technical ownership of the new frontend growth strategy by ensuring a high quality user experience while working closely with backend colleagues.
  • Work on a new JavaScript SDK that will impact all team.blue brands as well as merchants across Europe and their millions of transactions.
  • Collaborate on the entire software development lifecycle where security and compliance are fundamental to OnPay’s success.
  • Ensure high attention to detail to maintain secure and seamless processing of millions of monthly transactions.

Requirements:

  • Experience building lightweight, client-side JavaScript libraries with minimal dependencies and broad distribution.
  • Well versed in object-oriented code, and willingness to work with PHP and Symfony.
  • Interest in user experience best practices.
  • Great communication skills (our team language is English).
  • Structured, proactive, and with an eye for detail.
  • Knowledgeable about security as it relates to software.
  • Passionate about technology and staying up to date.
  • Linux and command line experience.
  • Version control workflows (we use Git & GitLab).
  • Resident of the EU or UK.
  • Ability to travel to Denmark a few times a year.
  • Payment industry experience (nice to have).
  • E-commerce experience (WooCommerce, Shopify, Magento, etc) (nice to have).
  • Experience working within the PCI-DSS or another audited environment (nice to have).
  • Knowledge of Scrum (nice to have).

Benefits:

  • A safe and flexible working environment.
  • Professional development opportunities, including courses and certifications.
  • Collaboration with skilled colleagues in the industry.
  • A healthy work-life balance.
  • Possibility to work either remote or from our offices in Europe.

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