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Mellon Group of Companies

ATM Software Specialist

Athens , Greece
full-time

AI overview

This role involves developing and maintaining ATM software solutions, integrating with banking systems, and ensuring secure transaction processing for leading banks across Europe.

Mellon Technologies, the parent company of Mellon Group of Companies, was founded in 1994 in Athens. Our offering consists of specialized technology solutions, contact centre and business process outsourcing services, to serve the increasing needs of financial institutions and organizations with strong consumer transactions business, such as Retail Banks, Public Utilities, Telecommunications Providers and large Private Companies.

Position Overview

Mellon Technologies is seeking an ATM Software Specialist to join our FinTech team and work with leading banks across Southeastern and Central Europe. You will be responsible for developing, integrating, and maintaining modern ATM software solutions that ensure seamless customer service and secure transaction processing.

Key Responsibilities:

  • Develop and support ATM applications (NDC, KAL/K3A, ProCash).
  • Integrate ATM solutions with EMV and ISO8583 systems.
  • Monitor system performance and resolve operational issues promptly.
  • Perform software upgrades, patches, and quality testing to ensure system reliability and security.
  • Support the implementation, piloting, and rollout of ATM software solutions.
  • Troubleshoot complex incidents, conduct root-cause analysis, and provide effective resolutions.
  • Collaborate with internal teams and clients to customize ATM functionalities.
  • Ensure compliance with industry standards, security protocols, and client requirements.

Requirements

  • Education & Background:
    • Bachelor’s degree in Computer Science, Information Technology, or a related field.
    • Minimum 2 years of experience in ATM software development, integration, or technical support within banking or fintech environments.
  •  Technical Skills:
    • Hands-on experience with ATM applications (NDC, KAL/K3A, ProCash).
    • Understanding of EMV standards and ISO8583 transaction processing systems.
    • Strong troubleshooting, incident resolution, and root-cause analysis abilities.
    • Experience with software upgrades, patching, and testing procedures.
  •  Soft Skills & Competencies:
    • Strong analytical and problem-solving mindset.
    • Ability to work both independently and within cross-functional teams.
    • Customer-oriented approach with attention to quality and reliability.
  • Mobility:
    • Availability for international travel across Mellon subsidiaries
  • Languages:
      • Fluency in English (written and spoken).
  • Preferred / Nice-to-Have:
    • Experience working with regional or international banking projects.
    • Familiarity with regulatory and security compliance standards in financial environments.

Benefits

    • Competitive salary package & benefits.
    • Opportunity to work on international banking projects.
    • Continuous professional training & career development within a multinational environment.
    • A dynamic and supportive workplace where innovation is encouraged.
Mellon Group of Companies

Established in 1994, Mellon is a multinational group of companies operating in 11 countries within our corporate headquarters located in Piraeus, Greece. Our area of expertise expands on specialized technology solutions, software services, contact center and business process outsourcing enabling financial institutions and large organizations to transform their business ecosystems, empowering their digital journey, and greatly simplifying and facilitating transactions with other businesses and its customers. Our Mission is to empower today’s businesses and organizations with tomorrow’s technologies to deliver unique experiences to their own customers and become future proof. At Mellon, we cultivate a challenging, collaborative, and relationship-oriented working environment that offers development opportunities and exposure to international practices. We are proud of our people, and we believe that leveraging diverse cultures and backgrounds improves our everyday life and boosts innovation and efficiency. Join us to make a real impact, shape the industry, be part of an award-winning team of professionals, and experience a multinational culture.

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