Enterprise Application DevelopmentSep 14, 2026

Migrating an Enterprise from Legacy HRMS to a Custom Tailored Solution with VIBE Coding

Built a fully custom HRMS using the MERN stack hosted on AWS. Development was accelerated using VIBE Coding with Human-Assisted AI.

Software Faktory•Case Study
Migrating an Enterprise from Legacy HRMS to a Custom Tailored Solution with VIBE Coding

Project Overview

The enterprise customer was struggling with an inflexible legacy HRMS that imposed high licensing costs and lacked the custom workflows required for their specific organizational structure.

By leveraging VIBE Coding and Human-Assisted AI, we rapidly developed a custom MERN stack HRMS hosted on AWS, saving months of development time and eliminating ongoing seat licensing fees. Our approach ensured that the new system was highly responsive, secure, and perfectly tailored to their daily operations. We focused on delivering a streamlined user experience that minimized training time for employees while providing HR administrators with powerful, automated workflows.

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THE HURDLES

Key Challenges

01

Inflexible Legacy HRMS

The enterprise customer was struggling with an inflexible legacy HRMS that imposed high licensing costs and lacked the custom workflows required for their specific organizational structure.

02

High Per-User Licensing Costs

The existing SaaS platform charged exorbitant seat-based licenses, creating an unsustainable financial burden as the organization scaled.

03

Lack of Custom Workflows

Standard HR software could not accommodate their unique onboarding, performance review, and global compliance tracking processes.

IMPACT

Results & Outcomes

The enterprise successfully migrated to the new system, achieving a 100% reduction in per-user SaaS licensing fees and significantly improving HR workflow efficiency through tailored automation. By completely eliminating vendor lock-in, the organization regained full ownership of their data and intellectual property. The streamlined UI reduced onboarding time for new hires by 50%, and the HR administrative team reported saving over 40 hours a week on manual data entry.

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100%Reduction in SaaS seat fees
3xFaster delivery via VIBE Coding
50%Decrease in onboarding time
FAQ

Frequently Asked Questions

Common questions about this project and our approach.

What is VIBE Coding?+

VIBE Coding involves using AI agents to rapidly generate code alongside human engineers who review, refine, and secure the output.

Did moving away from SaaS create a larger maintenance burden?+

While in-house maintenance is required, the use of modern cloud-native MERN architecture and automated CI/CD pipelines keeps the maintenance overhead incredibly low compared to the massive SaaS licensing fees saved.

How secure is the custom HRMS platform?+

We implemented industry-standard encryption, role-based access control (RBAC), and rigorous security auditing throughout the VIBE coding process to ensure sensitive employee data remains fully protected.

How fast was the VIBE coding process compared to traditional development?+

By leveraging AI agents to scaffold boilerplate code, we were able to deliver the completed enterprise HRMS in roughly one-third of the time a traditional development cycle would require.

Can the custom HRMS integrate with our existing payroll provider?+

Yes, the MERN architecture features extensible API endpoints designed specifically to facilitate secure, automated data synchronization with leading external payroll providers.

What kind of training was required for employees to use the new system?+

Very little. The ShadCN UI components and Next.js frontend provided a highly intuitive, modern interface, which reduced the typical employee onboarding time by over 50%.