Senior ACBS Core Banking Transformation Lead

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD; Singapore; On-site; SGD 180,000 - 240,000; Full time

Job summary

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD seeks an experienced ACBS SME to support a core banking transformation in Singapore. The role covers hands-on lending, solution design, integration, testing, migration, and cutover, working with business, tech, architects, and product vendors.

You will drive requirement analysis, ISD creation, and end-to-end solution validation, ensuring successful SIT/UAT and go-live readiness across multiple interfaces.

Qualifications

• 10+ years of IT experience with core banking transformation/implementation.
• Proven ACBS implementation experience in a commercial lending environment.
• Strong knowledge of commercial lending lifecycle: origination, servicing, disbursement, repayment.
• Experience integrating lending platforms with GL, accounting, reconciliation and payments.
• Ability to drive solution design, ISDs, documentation, testing, and sign-off.

Responsibilities

• Drive ACBS requirement analysis and To-Be solution design across loan origination, servicing, disbursement, and repayment.
• Design and support integrations between ACBS, GL/accounting, payment systems, and upstream/downstream apps.
• Lead workshops and collaborate with business, architecture, technology, and vendor teams to finalize solutions.
• Prepare and manage Interface Specification Documents (ISDs) and functional/technical design documentation.
• Support SIT/UAT, integration testing, defect triage, data mapping, migration validation, and reconciliation.
• Engage with product vendors to validate capabilities, configurations, gaps, and integration requirements.
• Support cutover, go-live, hyper care, and proactive risk/issue management.

Skills

ACBS deployment

Core banking

Lending lifecycle

Solution design

Integration design

Stakeholder collaboration

Testing support

Migration & cutover

Vendor management

Tools

MQ

REST/SOAP APIs

File interfaces

Job description

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD seeks an experienced ACBS SME to support a core banking transformation in Singapore. The role covers hands-on lending, solution design, integration, testing, migration, and cutover, working with business, tech, architects, and product vendors.

You will drive requirement analysis, ISD creation, and end-to-end solution validation, ensuring successful SIT/UAT and go-live readiness across multiple interfaces.