Java Backend Engineer with Security best practices knowledge

Our Customer is a leading global provider of cutting-edge payments technology solutions, dedicated to shaping the future of financial transactions worldwide. With a commitment to innovation and excellence, we connect consumers, businesses, financial institutions, and governments in over 200 countries and territories through our advanced processing networks.

We currently have several gaps in our defenses against enumeration attacks on the 3DS rails and need a seasoned Java engineer with Security best practices to improve the following areas:

•Detection: our ability to detect enumeration attacks on the 3DS rails in real-time is virtually non-existent.

•Intervention: we currently don’t have the technical ability to block enumerations in real time

•Remediation: there is no team that can block transactions and engage with clients to remediate (ROCC/PFD fulfills that function for the authorization rails).

As of today, our main mitigation approach is to block merchants that suffer extreme, unmitigated attacks. This approach only solves for the most extreme of cases and is not preventative, it is a reactive approach that is applied after the attack has done significant damage. Enumeration attacks (and our lack of defenses) has been an intense source of client frustration and complaints, which we want to mitigate. Thus this recruitment was opened.

Additional note:

This is a hybrid work opportunity, requiring attendance at the customer's office in Warsaw twice a week for team relationship-building purposes.

Due to the nature of our work in the financial market, candidates will be subject to detailed background screening including education, employment history, and criminal record.


Must Have

  • Proficiency in Java is a must
  • Back End - Proficient in implementing design patterns
  • Hands on knowledge of Spring,
  • Hibernate
  • RDBMS technologies like PostgreSQL,
  • Experience with web service standards and related patterns (REST, JSON)
Additional Information_

What can you expect from us?

  • We Learn by doing; you will collaborate with industry experts willing to share their knowledge, passion and experience.

  • We invest in improving your skills by participating in training and mentoring programs.

  • You can advance your career with us by choosing from different career paths (technical, management).

  • We’ll help to broaden your horizons by working in an open and supportive multicultural environment.

  • Commercial projects from the domain.

  • Great atmosphere and supportive environment.

  • You will work in a friendly, relaxed atmosphere created by many bonding events and activities.

What do we offer?

  • Competitive salary adequate to your skills and performance.

  • Flexible working hours.

  • Training programs.

  • Private medical insurance.

  • Multisport program.

  • English lessons.

  • Company social events.

  • Relocation assistance.

Diversity and Inclusion Statement

We aim to recruit, develop and retain the most talented people we can find from various backgrounds and cultures. Inclusivity and equality are cornerstones of our Mobica community and a big part of what makes us so brilliant to work with. Here, dedication and performance are valued and rewarded regardless of nationality, gender, age, religious beliefs or other personal characteristics. Here, diversity is celebrated, and everyone belongs.

“The benefits of having a diverse workforce from different backgrounds, recruited and developed only on the basis of ability, is a core personal belief for me - so I join with other members of Mobica’s leadership in promoting a commitment to recognise equal opportunities and rights for our talented individuals. Every Mobican can expect to be treated with dignity and respect regardless of personal characteristics or beliefs.”

Gary Butters

Job Reference: ref816o

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