Parser

Technical Lead (Java)

Company
Location
London Area, United Kingdom
Posted At
8/20/2025
Description

This position offers you the opportunity to join a fast-growing technology organization that is redefining productivity paradigms in the software engineering industry. Thanks to our flexible, distributed model of global operation and the high caliber of our experts, we have enjoyed triple digit growth over the past five years, creating amazing career opportunities for our people.

We are looking for a highly skilled and hands-on Lead Java Engineer to lead a focused engineering initiative centered on payment gateway integration. This role combines technical leadership with active coding responsibilities, working within a semi-autonomous structure to ensure fast, efficient delivery. You will be expected to guide implementation best practices, support junior engineers when needed, and take ownership of solution design and code quality.


Key Responsibilities:

  • Lead the technical design and development of integrations with multiple payment gateways (preference for Worldpay).
  • Own and implement encryption/decryption logic using industry-standard security protocols.
  • Translate and transform data formats for reliable communication with payment services.
  • Interpret, navigate, and apply complex API documentation with minimal support.
  • Troubleshoot systems at the network level to ensure robust and secure integrations.
  • Contribute directly to coding, code reviews, and architectural decisions.
  • Operate confidently in a cloud-hosted environment (primarily Azure).
  • Support light administrative tasks related to project ramp-up, where needed.


Must-Have Skills:

  • Expert-level proficiency in Java.
  • Proven experience integrating with payment gateways.
  • Strong understanding of encryption/decryption techniques and secure coding standards.
  • Experience resolving low-level systems and networking challenges.
  • Ability to work independently and make sound technical decisions.
  • Comfortable translating product needs into scalable technical solutions.
  • Cloud experience in Azure and AWS


Nice to Have:

  • Experience using observability tools like Grafana or OpenTelemetry.
  • Familiarity with agile delivery in lean, distributed team environments.

Team & Collaboration:

  • Lead a small, semi-independent engineering initiative.
  • Report to a Product Leader.
  • Collaborate with other senior engineers based in the UK and Hungary.


Location: Spain, Portugal, or UK, Central London or Hertfordshire (hybrid). The position requires travel to the UK for project-related activities.


This position offers a chance to lead a dynamic, growing team, collaborate with external partners, and shape the future of our identity and authentication services. If you are passionate about driving technical excellence and championing team success, we’d love to hear from you.


Some of the benefits you’ll enjoy working with us:


  • The chance to join an organisation with triple-digit growth that is changing the paradigm on how software products are built.
  • The opportunity to form part of an amazing, multicultural community of tech experts.
  • A highly competitive compensation package.
  • Medical insurance.


Come and join our #ParserCommunity.

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Technical Lead (Java) | Parser | Hunt UK Visa Sponsors