ROBERT JEEN
United Overseas Bank (UOB), Singapore
Singapore
20
years of professional experience
Technical Delivery Manager with 22+ years of experience delivering enterprise-scale Cards & Payments solutions for leading financial institutions including UOB Singapore and Citibank Singapore. Proven expertise in VisionPLUS, IBM Mainframe technologies, API integration, digital banking, payment processing and large-scale modernization initiatives. Extensive experience leading cross-functional teams, managing end-to-end software delivery, driving production stability and partnering with business stakeholders, Visa, Mastercard and technology teams across Asia, EMEA and LATAM. Strong background in modernizing legacy mainframe applications through z/OS Connect APIs while maintaining high availability and enterprise-grade security.
Work History
Technical Delivery Manager
3 Years 4 Months- Lead delivery of digital banking and cards modernization initiatives supporting UOB's retail banking platforms.
- Key Responsibilities
- Lead end-to-end delivery of enterprise card services.
- Manage technical design, development, testing and production implementation.
- Drive performance optimization for high-volume card transaction processing.
- Collaborate with business, architecture, infrastructure and vendor teams.
- Lead technical governance and code quality reviews.
- Mentor development teams across multiple projects.
- Major Projects
- Self-Service Dispute
- Designed and delivered customer self-service dispute functionality.
- Developed APIs for dispute creation, fulfilment and enquiry.
- Integrated Visa and Mastercard dispute processing.
- Digital Banking
- Delivered multiple customer-facing services including
- Click-for-Cash
- Balance Transfer
- Reverse IPP
- SmartPay
- Repayment Schedule
- Credit Limit Increase
- Debit/Credit Card Replacement
- EStatements
- EAdvice
- Splunk Monitoring
- Designed centralized logging framework.
- Implemented reusable monitoring framework across online services.
- Developed dashboards for response time, success rate and timeout monitoring.
- Key Achievements
- Successfully modernized multiple legacy card services.
- Improved operational monitoring through centralized logging.
- Delivered high-quality releases with strong production stability.
- Led performance optimization for high-volume batch processing.
Application Development Manager
14 Years 3 Months- Led application development and delivery for Consumer and Commercial Cards supporting Asia, EMEA, LATAM and Central America.
- Leadership
- Managed complete SDLC.
- Led distributed development teams.
- Conducted architecture reviews.
- Managed quarterly and monthly production releases.
- Coordinated business, infrastructure and regional technology teams.
- Major Deliveries
- Mainframe Modernization
- Led adoption of z/OS Connect APIs.
- Developed secure REST APIs.
- Implemented OAuth and APIKEY authentication.
- Integrated enterprise API Gateway.
- Modernized legacy MQ services without changing business logic.
- Mobile Wallet
- Successfully delivered
- Apple Pay
- Google Pay
- Samsung Pay
- Key capabilities
- Tokenization
- Marqeta Integration
- Token Lifecycle Management
- Card Eligibility
- Token Authorization
- Lost/Stolen Card Migration
- Digital Wallet Lifecycle
- Interest Processing
- Recognized SME responsible for
- Interest Engine
- Billing
- Grace Period
- Payment Reversal
- Regulatory Enhancements
- Country Launches
- Supported
- Asia
- Japan
- LATAM
- EMEA
- Central America
- Payment Processing
- Delivered enhancements for
- Real-Time Payments
- Payment Allocation
- Temporary Credit Limit
- Late Fee
- Minimum Due
- Installment Plans
- Multi-Currency Cards
- Country Launches
- Security Modernization
- Delivered enterprise security initiatives including
- CVV Encryption
- PIN Block Migration
- No-Export Key Migration
- HSM Integration
- PGP Encryption
- EMV Migration
- Selected Achievements
- Delivered major modernization initiatives across global card platforms.
- Successfully launched multiple country implementations.
- Led enterprise API modernization strategy.
- Reduced production incidents through improved engineering practices.
- Mentored development teams across multiple regions.
- Delivered secure payment solutions supporting millions of cardholders.
Senior Software Engineer
1 Year 10 Months- Mainframe application development
- Production support
- Client delivery
- VisionPLUS development
Education
Master of Computer Applications - MCA
Skills
Technology Leadership
Technical Delivery Management
Engineering Leadership
Solution Architecture
Project Delivery
Production Support
Stakeholder Management
Agile Delivery
SDLC
Cards & Payments
VisionPLUS
Consumer Cards
Commercial Cards
Mobile Wallet
Tokenization
Visa
Mastercard
Card Issuance
Interest Processing
Installment Plans
Digital Banking
Mainframe Technologies
COBOL
CICS
JCL
DB2
VSAM
MQ
Easytrieve
Endevor
File-AID
CA7
CA View
API & Integration
Z/OS Connect
REST APIs
OAuth
APIKEY
JSON
XML
Swagger
YAML
TLS
API Security
DevOps & Tools
IBM RDz
IBM Explorer
JIRA
Splunk
CI/CD
Git
Programming
SQL
Mainframe
API
REST
Security
CVV
PIN Block
HSM
SSL
Encryption
Payments
AWARDS
UOB – Silver Award – Delivers with Pride, UOB – Copper Award – Succeeds Together, UOB – Bronze Award – Drives Value for Clients, Citi Applause – Takes Ownership, Citi Applause – Works as a Partner, Citi Applause – Succeeds Together, Citi Gratitude Award
Timeline
Technical Delivery Manager
United Overseas Bank (UOB), Singapore
04.2023 - CurrentRead More
Application Development Manager
Citibank Singapore
10.2008 - 01.2023Read More
Senior Software Engineer
MphasiS (EDS Company), Chennai
12.2006 - 10.2008Read More
Manonmaniam Sundaranar University
Master of Computer Applications from MCA
Read More