IST Switch Senior Developer (Cards)

About Commercial Bank Of Qatar

Job Summary

Key Responsibilities

• Work with the Cards team to build and maintain the technical aspects of Services.
• Design and Development of solutions around Cards Domain and more specifically around IST Switch
• Executing Projects implementation and Compliance items
• Following Corporate standards and practices.
• Support and major issue investigation and resolution, concluded in comprehensive RCA report.
• Assessment and propose redesign of the Cards systems setup to meet new Payment industry trends and Business requirements
• Review and assessment of Vendors proposed solution in the scope of the projects and requirements in relation to Business demands
• Collaborative design of the Cards solution with vendors (PDP/SOW)
• Design and execution of data migrations, ensuring the highest levels data integrity and accuracy, and best possible performance.
• Implementation of new technologies around Acquiring and Issuing for Cards Domain

Atm (Mandatory)

• Experience of ATM state programming in IST compiler
• Ability to enhance the existing code to support new transaction types flow.
• Ability to add new services based on business requirement
• Good understanding of NDC and DDC protocols.

Ist And Switch (Mandatory)

• IST/Switch architecture knowledge
• Experience of development to integrate site specific message protocol with IST code Module
• Experience in ATM/POS acquiring experience
• Ability to identify the root cause from the log warning/error message to isolate the issue
• Ability to resolve the issue by using the ATM/POS utility
• Expertise in IST/Switch parameters setup
• Knowledge of Data consistency and purging processes
• Knowledge of Tokenization configuration
• Should have good knowledge in ATM/POS configuration and impact
• Should have good knowledge in routing the transaction to various issuers Knowledge in IST SDK API handling
• Should have strong knowledge of various IST/Switch interfaces and be capable of developing new in-house interfaces.

Keys And Simulators

• Well versed with Visa, MasterCard, FIME, ATM test simulators and able to manage End to End testing.
• Good Understanding of Encryption Keys Methodologies and Algorithms
• Strong knowledge of HSM it’s configurations and commands
• Strong knowledge of EMV and its data attributes and processes involved in personalization and authorization.
• Experience in implementing Encryption Keys on Hosts, POS Terminals & Payment Schemes ( Visa / MasterCard /Diners)

Good To Have

• New Payment schemes launch experience
• Completed migration project to/from IST/Switch, development and design of the migration
• System Data integrity validation and fixing
• Qatar national switch experience Issuing Acquiring certification (is a Plus)
• Global Payment Schemes Issuing and Acquiring certification
• Chip Cards personalization and requirement of Payment schemes
• Cards financials disputes investigations.
• Implementation of PCI-DSS
• Managing planning, Development System Migration with minimum BAU interruption.
• Cards Domain accounting, reconciliation and settlement knowledge
• Ability to work in a team environment, independently, take direction, detail-oriented approach.
• Data analytic skills Strong verbal and written skills.
• Knowledge in software development, lifecycle methodology and support documentation

Qualifications, Expereinces

• Minimum 7 years of experience IST Switch as a developer.
• Minimum 5 years of experience in ATM/POS Switches Environment.
• Minimum 5 years of experience in Credit/Debit Card Systems.
• Full knowledge of Payment Schemes regulation and standard on transactions processing and Cards issuance
• Experience of Host and Terminal certification.
• Tokenization implementation and technology understanding

Why Commercial Bank

• Best Performing Bank in Qatar in The Banker’s prestigious Top 1000 World Banks Rankings 2025.
• Best Digital Bank in the Middle East 2024 by World Finance and Best Mobile Banking App in the Middle East 2024 by Global Finance.
• An Innovation-Driven, Digital-First Environment where employees work with the latest tools and technologies to redefine banking
• Opportunities for Global Partnerships & International Exposure, connecting employees with global networks and perspectives.
• A focus on Employee Well-being & Work-Life Balance, ensuring a healthy and supportive environment for all team members
• Competitive Compensation & Benefits that ensure our employees are rewarded for their dedication and performance
• A strong Commitment to Diversity, Equity & Inclusion, fostering a culture that values every individual’s unique perspective
• At Commercial Bank, we don’t just offer careers, We shape futures by pioneering
• digital transformation
• in Qatar’s banking sector,
• blending digital-first
• approach to redefine banking through
• innovative solutions.

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