Modernizing a Performance Marketing Giant for Faster, Smarter Delivery
A Performance Marketing Platform partnered with 7Span to rebuild its legacy performance marketing ecosystem using modern frontend architecture. With phased migration, Vue 3–3-based modular components, and optimized performance flows, we helped accelerate feature delivery, reduce technical debt, and create a scalable foundation for future growth.
Introduction
Performance Marketing Platform a leader in performance marketing, relied on large, tightly coupled legacy systems for years.
These outdated interfaces slowed down development cycles, increased maintenance efforts, and limited the speed at which new production-ready features could be delivered.
The company needed to:
-
Modernize legacy frontend systems
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Improve user experience for call center agents & internal teams
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Accelerate feature rollout through modular engineering
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Reduce tech debt without disrupting existing workflows
This required a careful, phased modernization strategy that balanced innovation with system stability.
The Challenge
The core challenge was executing a safe, scalable migration from legacy systems without halting ongoing operations.
Key obstacles included:
- Multiple mission-critical legacy features are tightly interwoven with old tech
- High dependency on a monolithic codebase with risk of regression
- Need to introduce modern components within the existing ecosystem gradually
- Migrating thousands of daily active call center users without disruption
- Maintaining data consistency with live marketing & lead-gen systems
- Coordinating across large engineering, product, and QA teams
Our Approach
We implemented a phased, risk-free modernization plan, focusing on stability, scalability, and long-term maintainability.
Modern Vue 3 Architecture
Moved core modules to Vue 3 + Composition API + Pinia, creating a reusable, clean, component-driven structure.
Micro-Frontend Integration
Used Single-SPA to gradually graft modern modules into legacy systems without rewriting everything at once.
Performance Optimization
Refactored UI flows, reduced load times, and improved responsiveness for agent-heavy screens.
Admin Platform Migration
Rebuilt internal admin experiences for marketing teams, management, and call center supervisors.
Iterative Rollouts & Beta Testing
Released modules to select call center agents first, ensuring stability before organization-wide deployment.
The Impact
40%
Faster Feature Delivery, modern component architecture enabled quicker rollouts and reduced engineering bottlenecks.
35%
Improvement in UI Performance Optimized screens helped call center agents work faster with reduced loading delays.
80%
Reduction in Legacy Tech Dependency. Migrated multiple high-impact modules to a scalable, future-ready stack.
60%
Adoption by Performance Marketing Platform Leadership management teams now use the new internal admin system for daily operations.
Making IT Possible
Making IT Possible
Making IT Possible
Making IT Possible
Making IT Possible
Making IT Possible
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