Core banking transformation at a glance 

1. Largest Core Banking Modernisation in the region, implemented by Systems Limited on the latest Temenos Core 
2. Migrated 18M+ customer accounts and millions of loan records in a single cutover  
3. Achieved 40% improvement in Close of Business (COB), reducing processing time to 4.5 hours 4. Transitioned application architecture from legacy VMs to Red Hat OpenShift platform 
5. Delivered the transformation with near-zero disruption to customer services during go-live. 
6. Demonstrated exceptional cross-regional collaboration across teams in Pakistan, UAE, Egypt, Vietnam, Singapore, and Bahrain. 

About VP Bank’s digital ambitions 

Vietnam Prosperity Joint-Stock Commercial Bank (VP Bank) stands among the top five private commercial banks in Vietnam, serving a diverse retail and corporate customer base. With over 18 million active accounts, the bank plays a major role in the country’s financial ecosystem. This core modernization initiative represents VP Bank’s first transformation of this scale in the Asia Pacific region, reflecting its ambition to modernize at pace while continuing to grow. 

The challenge of scaling a legacy core 

Prior to the transformation, VP Bank’s core banking platform was becoming a constraint on growth and innovation. The Bank was unable to fully meet market demands or support rapid service delivery, which limited their ability to bring new offerings to customers quickly and efficiently.  

Business always wanted speed-to-market, and to achieve speed-to-market we have to build capabilities, resilience and security. That leads naturally to the question: how do we modernize our core?

Augustine Wong Kok Seng

CIO at VPBank

The sheer scale of data i.e., around 77 TBs compounded the complexity of the upgrade. Traditional tools and methodologies posed risks of prolonged downtime and potential data inconsistencies. VP Bank required a strategy that allowed it to scale reliably, ensure business continuity, and preserve regulatory compliance throughout the transition.

Expanding from the Core

VP Bank has been using Temenos Core Banking since 2006. However, as the bank expanded in scale and complexity, it required a platform capable of matching its growing need for flexibility, performance, and scalability. After a thorough analysis of the complexities associated with the system, VP Bank decided to upgrade its core banking system to the latest Temenos R23 TAFJ, offering cloud-native capabilities, open APIs, and extensibility aligned with modern digital banking requirements. 
To execute this transformation, VP Bank chose Systems Limited based on its proven track record in delivering large-scale Temenos upgrades and deep expertise in executing transformations in multi-vendor environments. The bank valued Systems Limited’s ability to implement modern cloud platforms like Red Hat OpenShift alongside Temenos Core Banking, ensuring the initiative delivered not only a successful upgrade, but a future-ready architecture. As Augustine Wong noted:

 We scoured the whole world to find who is the best, who has done Red Hat Open Shift on-premise. There’s only one, which is Systems Limited. They flew in experts from Pakistan to Vietnam and worked with us onsite day and night. Temenos was fully engaged too.

For VP Bank, Systems Limited’s role extended beyond system integration. From the outset, Systems Limited operated as a trusted transformation partner, bringing together global experience, local presence, and execution discipline to support the bank’s strategic objectives.

The strategic implementation

The solution was deployed on Red Hat OpenShift, the industry’s leading Kubernetes-powered hybrid cloud application platform. Running core banking workloads in a containerized, cloud-native environment enabled orchestration, operational consistency and resilience across environments critical for a bank operating at VP Bank’s scale. 
To manage the complexity of migrating large data volumes, the project team adopted an innovative database conversion methodology and leveraged Oracle parallel execution for large tables while augmenting Temenos’ conventional utilities. This approach significantly reduced conversion time and mitigated execution risk. 
Completing the upgrade with less than 24 hours of downtime was a major operational achievement. “We set the target to finish within a short weekend,” said Do Cam Van, director of the core banking applications center. Multiple mock cycles were conducted to validate timing across infrastructure, application, and integration layers.

We had a long checklist with many parties – infrastructure, application, integration teams – and we used disaster recovery (DR) so customers felt no impact. From Friday midnight to Sunday afternoon we completed the migration in about 20 hours, and the actual downtime was only three hours.

Do Cam Van

Director of the core banking applications centre

For VP Bank, Systems Limited’s role extended beyond system integration. From the outset, Systems Limited operated as a trusted transformation partner, bringing together global experience, local presence, and execution discipline to support the bank’s strategic objectives.

Throughout the implementation, teams from Systems Limited, Temenos, and VP Bank worked as a single, integrated unit, reinforcing a one-team mindset that minimized barriers and ensured shared accountability.

Benefits realized by VP Bank

The modernization of VP Bank’s core banking platform has delivered measurable improvements in performance, scalability, and operational efficiency. By upgrading to Temenos Transact R23 on a Red Hat OpenShift cloud-native architecture, the bank established a resilient foundation capable of supporting rapid growth and rising transaction volumes. The platform was performance-tested to reliably handle 150% of production load, providing confidence that scalability would no longer limit business expansion.

Operational efficiency improved significantly following go-live. “Close-of-business processing improved by 30%,” said Do. “Payment transactions rose 40%, and on peak days we handled double the usual volume without incident. The new platform lets us launch products faster and improve customer experience.” 
Systems Limited’s innovative database conversion approach reduced conversion time by approximately 60%, while Close of Business (COB) processing was optimized by 40%, reducing processing time to 4.5 hours. Despite the scale of the migration covering 18 million customer accounts and several million loan records across large databases, the upgrade was completed within a single sub-24-hour cutover, ensuring uninterrupted customer service throughout the transition. 
Reflecting on the achievement, Ammara Masood, GM Global Industries, Banking & Financial Services at Systems Limited, stated:

This success with VPBank demonstrates the depth of our expertise in executing major core banking upgrades on a global scale, a milestone that showcases our commitment to enabling banks across APAC to modernize for the digital future.

Ammara Masood

GM Global, Banking and Financial Services, Systems Limited

From a business and innovation standpoint, the upgraded platform has accelerated time-to-market for new products, improved deployment speed, and reduced operational overheads through simplified workflows and testing environments. The shift from legacy virtual machines to containerized deployment has enhanced system performance and responsiveness, which has been immediately visible to end users, with internal feedback confirming that the platform is significantly faster post-upgrade. Collectively, these outcomes position VP Bank to support its growth ambitions, including onboarding millions of new customers, while delivering a faster, more reliable, and scalable banking experience.

At VPBank, modernization is not an end in itself, but a foundation for what comes next. By embracing open, cloud native architectures and reengineering our core banking platform on Red Hat OpenShift, we are building the agility and resilience needed to continuously innovate at scale. This transformation reflects our commitment to being a technology-first bank—one that can evolve rapidly, deliver with consistency, and serve all our customers with trust and speed in an ever-changing digital world. We deeply value the strong collaboration with Temenos, Red Hat, and Systems Limited, whose partnership has been instrumental in turning this vision into reality.

Wong Kok Seng Augustine

CIO – VP Bank

VP Bank’s core banking modernization stands as a compelling example of what can be achieved through strategic vision, strong partnerships, and technical excellence. Systems Limited’s leadership in system integration, combined with Temenos and Red Hat technology, delivered not just a technical upgrade. It established a future-proof core banking platform designed for agility, resilience, and sustained innovation. This transformation serves as a blueprint for banks seeking to modernize their core systems at scale without compromising stability, customer experience, or growth momentum.