Engineering Transformation in Financial Services: From Legacy to Cloud-Native with Publicis Sapient and Rulesware

In today’s financial services landscape, the pressure to modernize is relentless. Banks, insurers, and wealth managers are challenged by decades-old legacy systems, siloed operations, and ever-evolving regulatory demands. The result? Slow innovation, increased operational risk, and a growing gap between customer expectations and what traditional technology can deliver. The partnership between Publicis Sapient and Rulesware is designed to help financial institutions break through these barriers—enabling a seamless journey from legacy to cloud-native, and empowering organizations to thrive in a digital-first world.

The Modernization Imperative: Why Change Now?

Legacy technology is more than a technical debt—it’s a strategic risk. Outdated systems hinder agility, complicate compliance, and make it difficult to deliver the seamless, secure, and personalized experiences customers now expect. Inaction is costly: industry research shows that outdated technology cost financial institutions $36 billion in 2022 alone, a figure set to rise as digital-native competitors continue to disrupt the market.

The Power of Partnership: Publicis Sapient and Rulesware

Publicis Sapient and Rulesware bring together complementary strengths to deliver holistic engineering transformation:

Together, this partnership enables financial institutions to:

Engineering Transformation: The Journey from Legacy to Cloud-Native

1. Agile Engineering for Speed and Value

Transformation begins with a shift from project-based to product-based thinking. By embedding agile principles across teams, Publicis Sapient and Rulesware enable rapid iteration, continuous learning, and faster delivery of new features and regulatory changes. This approach ensures that customer and business value are at the heart of every initiative.

2. Cloud Migration: Secure, Scalable, and Compliant

Leveraging deep partnerships with AWS, Google Cloud, Microsoft Azure, and Pega, the partnership guides financial institutions through the migration of critical workloads to secure, scalable cloud environments. Cloud adoption not only reduces costs and increases agility, but also enhances compliance, disaster recovery, and the ability to innovate at scale.

3. Microservices and API Integration

Modernizing monolithic legacy systems is achieved by engineering microservices and API platforms. This modular approach accelerates digital innovation, enables seamless integration of new technologies—including AI and advanced analytics—and allows for stronger collaboration across the enterprise. API-first architectures also support open banking initiatives and new revenue streams.

4. Security and Compliance by Design

Security and regulatory compliance are embedded from the outset. Solutions are designed with robust controls, automated testing, and continuous monitoring to ensure every digital product meets the highest standards for data protection and regulatory adherence. This is especially critical in a sector defined by global regulatory scrutiny.

5. Data-Driven Value Creation

The partnership unlocks the power of data by connecting and refining it across the enterprise, making it actionable for both compliance and customer experience initiatives. Data modernization strategies enable real-time insights, predictive analytics, and personalized services that drive measurable business value.

Real-World Outcomes: Proven Impact

A leading example of this engineering transformation approach is the partnership’s work with Lloyds Banking Group. Facing extensive legacy systems and the need to deliver new digital products at speed, Lloyds adopted a framework based on lean methods, agile principles, and value stream analysis. The results were transformative:

These outcomes were achieved through value-focused analysis, prioritization of high-impact interventions, and the use of accelerators to increase the pace and success of change. The result: a resilient, future-ready engineering organization capable of thriving in a rapidly changing financial landscape.

Why Publicis Sapient and Rulesware?

Ready to Transform?

Financial services organizations that embrace engineering transformation are better positioned to respond to disruption, accelerate digital product launches, and meet regulatory demands with confidence. Whether you are just starting your modernization journey or looking to scale and sustain your progress, Publicis Sapient and Rulesware are your partners for industry-focused engineering transformation.

Connect with our experts to learn how we can help your organization thrive in the digital age.