Platform Modernization & Team Leadership
Modernizing a Legacy FinTech Platform
eifas Licensing GmbH
100%
Uptime During Migration
2 Years
Team Leadership
Legacy → Modern
Stack Migration
The Challenge
eifas, an all-in-one FinTech SaaS platform for small and medium-sized businesses, needed to modernize their legacy platform while continuing to serve existing customers. The platform handled critical business functions including:
•Real-time bookkeeping and financial management
•Document management and OCR processing
•Payroll processing
•Debt collection workflows
•Integration with banking and payment APIs
The challenge was migrating from an older technology stack (AngularJS) to modern technologies while improving performance, adding new features, and maintaining service continuity.
Our Solution
We integrated within a small internal team to see through a comprehensive modernization effort:
Team Leadership
Led team of developers in executing migration strategy
Broke down complex business requirements into actionable Jira tickets
Coached team through implementation and best practices
Established code review processes and quality standards
Significantly increased test coverage across the platform
Architecture & Development
Re-architected significant portions of the system for performance and scalability
Migrated front-end from AngularJS to modern React stack
Developed new RESTful APIs for improved modularity
Integrated third-party services (OCR, payment gateways, banking APIs)
Optimized database queries and background job processing (Sidekiq/Redis)
DevOps & Security
Automated deployment pipelines and cloud infrastructure (AWS) provisioning
Streamlined release process, reducing deployment times
Ensured compliance with data protection regulations
Maintained high security standards throughout development cycle
Implemented monitoring and alerting systems
Results & Impact
Successfully migrated platform from legacy stack to modern React and Rails
Substantially increased test coverage and code quality
Improved system performance through database and query optimization
Reduced deployment times through CI/CD automation
Extended platform functionality with new API integrations
Maintained 100% service uptime during migration
Project Details
Client
eifas Licensing GmbH
Industry
FinTech / SMB Software
Project Type
Platform Modernization & Team Leadership
Timeline
April 2019 - March 2021
Technologies
Ruby on RailsReactPostgreSQLRedisSidekiqAWSOCR APIsBanking APIsPayment Gateways
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