PUBLISHED DATE: 2026-10-27 00:56:26

Coreless Banking: Powered by Sapient Slingshot | Publicis Sapient

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Coreless Banking: Powered by Sapient Slingshot

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In this report

Stop letting legacy systems call the shots.

Every bank knows the feeling: legacy systems and mounting tech debt are slowing progress and hiking costs every day. Patching old systems barely keeps up with business as usual, let alone new customer demands or regulatory change. Frustrated teams waste hours on manual workarounds. Siloed data and inflexible tech stacks mean you fall behind faster each year, while nimble competitors gain ground. Delays in bringing new products to market, rising operational drag, and constant compliance headaches—these are more than IT frustrations, they’re business risks that threaten growth, customer loyalty and your bottom line.
Staying put is the real gamble. The longer you wait, the more every patch, workaround and missed opportunity adds up—raising costs, multiplying customer friction, and leaving your teams stretched thin. Tech debt isn’t just an internal issue; it’s visible in every lagging service, every frustrated call, every customer who leaves for a smoother digital experience elsewhere.
Break free from your tech debt. Build the digital foundation your teams—and your customers—need to lead the next chapter of banking.

De-risk your core modernization journey

Legacy systems can slow progress, but your vision for a modern bank doesn’t have to. At Publicis Sapient, we work with 85% of the top global banks in our markets to help them see beyond challenges to a landscape where advanced technology meets human insight.
Our proprietary AI platform, Sapient Slingshot, drives enhancements in productivity, efficiency, speed and quality. Blending advanced code generation with agentic AI and an enterprise-level code library, our engineers are able to create high-impact solutions—supporting everything from modernization to development and testing.

Core Modernization playbook

In today’s banking environment, doing more with less is crucial. Slingshot optimizes resources and enhances efficiency. Our iterative approach ensures each phase is meticulously planned, balancing risk and reward. This step-by-step process supports agile decision-making—a critical factor in today’s fast-paced banking environment.
Let’s redefine banking together.

Explore how Sapient Slingshot modernizes legacy code

The IT Modernization Portal streamlines the transition from legacy systems to modern architectures, reducing risk, accelerating timelines and improving code accuracy throughout the transformation process.
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