Application specialist (m/f)

Changing the future of digital payments takes a strong engineer.

You’ll take an active role in a fast-growing tech company in a high-paced, high-impact market. Here, it’s not just skills and ambition that gets the job done, it’s the full package that makes the difference. Together, we are making payment seamless and secure.

You’ll be part of an agile team within Product Stability and Security responsible for real-time, 24/7/365 payments platform. As Application Specialist, you’ll join an open and sharing community with highly skilled colleagues.

Together, we can power the future as a European payments champion.

Mercury Processing Services International (MPSI)is a part of Nets Group a Private Equity backed enterprise based in Copenhagen.  However, MPSI and this role are both located in Zagreb, Croatia.

Together we are a fast-growing tech company with the ambition of being European payment champion. We are already of substantial size, with 200+ Banks and Financial Services Clients across Europe.  To these Clients, we provide secure and critical payments infrastructure, whilst also innovating with biometrics, AI and voice assistants.


We are looking for an all-round engineer interested in delivering best-in-class service.  On this position, you will have an opportunity to release, test, deploy, configure and integrate distributed payment solution provided by the external vendor within our ecosystem. To make things more challenging, you will need to make sure that service is stable and secure for all those who are using it.

You will work closely with other internal agile teams and external suppliers whilst also having the ability to engage Clients.

Ideally, you have an IT or Computer science degree with a minimum of 2 years of experience with software integration.

You contribute with skills, ambitions and that little personal twist that makes us succeed.

It’s the full package that you bring to work every day that gets the job done. Your professional acumen and experience form most of your qualifications, but it’s your personality that makes the difference to succeed in this role. Especially the little twists we all have that makes us personalities instead of just a person.

Your professional qualifications include:

  • Understanding general IT domains (networking, virtualization, security, OSI layers),
  • Experience in Unix-based OS administration,
  • Knowledge of web and application servers (e.g. Tomcat, IBM Websphere),
  • Basic knowledge of SQL,
  • Basic knowledge of scripting language (e.g. Bash, Powershell, Perl, Ruby, JavaScript, Python),
  • High proficiency in English, both written and spoken as our Business language is English,
  • Agile software development methodology (ideally SAFe)


We understand that payments are a different kind of beast, so any experience in payment business technology and processes or running business-critical production systems is nice to have.

NOTE: This is a temporary replacement for maternity leave. 

If you are ready for new challenges, send us your CV on look forward to meeting you!


Privacy Notice

By submitting Your curriculum vitae You give us the right to process Your personal data in relation to vacant job positions.

The processing is based on point (f) of Article 6(1) of GDPR. The recipients of personal data are internal only. The period for which the personal data will be stored is 3 years. You have a right to request from Us access to and rectification or erasure of personal data or restriction of processing concerning Your data or to object to processing as well as the right to data portability. You have a right to lodge a complaint with a personal data protection authority in Croatia or Slovenia.

Controller details: Mercury Processing Services International Ltd. (Croatia & Slovenia), Radnička cesta 50, Zagreb, Croatia and Slovenčeva ulica 24, Ljubljana, Slovenia.

Contact details of data protection officer: dpo(at)mercury-processing(dot)com.

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