Existing applications. Real business results.

We take ownership of existing Ruby on Rails applications

Need someone to take over your Rails app? We maintain, stabilize and improve existing Rails applications, from production issues and upgrades to new features and infrastructure. Keep your product moving without unnecessary rewrites or rebuilding your engineering team.

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Technology cloud connecting Ruby, Rails, PostgreSQL, React Native, Next.js, React, AWS, GraphQL, Stripe and C — **WideFix**Product engineering, since 2009

15+ yearsof software development experience

Case Studies

Systems Integrations

SAP Ariba Integration for Procurement Emissions

WideFix founder Andrei Kaleshka independently delivered a SAP Ariba integration to track procurement emissions, coordinating with the DitchCarbon founder and SAP teams and resolving conflicting implementation guidance.

SAP Ariba integration

HipChip: Stripe & ACH integration

Took ownership of a legacy Ruby on Rails app after its developer left, added automated tests, and delivered Stripe and ACH alongside performance and stability improvements.

Stripe & ACH Integration

Financial report system across EventCube, Shopify and Stripe

Built a consolidated financial reporting system for transactions and charges across EventCube, Shopify and Stripe in response to an urgent client request.

Rails reporting integrations

Integrated the app with Stripe from scratch

Replaced cash payment collection with automatic Stripe payments, reducing accountant workload by 90%.

Stripe payment automation

Stripe Data Consistency

We fixed data consistency issues between the app and Stripe.

Payment integration rescue

Optimisations

Kajabi Experts: Rails Performance Optimization

Optimized the Rails data path for unusable pages. The Ruby-versus-SQL processing benchmark showed 79.74× higher throughput; separately, the article reports page loading falling from over 30 seconds to 300ms.

Rails performance optimization

Improved page load speed of the search functionality

Reduced search page load time from 10 seconds to 100ms - a 99% reduction and 100× faster loading.

Rails performance consultants

Prevent Account Sharing

We implemented an on-premises solution to combat account sharing.

Subscription revenue protection

Queue Optimization

We unblocked a completely stalled background jobs queue and eliminated daily H12 errors.

Production app rescue

SEO Optimization

Improved search visibility through gradual changes to the existing Rails product; see the Search Console evidence and comparison limits.

Technical SEO optimization

Development & Design

Public API development for Palladium

Built an API and backoffice for a new portal without disrupting the old one. Reused and refactored the existing backend, protected data integrity and unblocked delivery across teams.

Existing Rails app development

Added advanced functionality to the CRM

Enabled multiple managers per property with zero-downtime data and relationship migrations, preserving the existing app and user experience.

Rails feature development

Mobile App & Audio Engineering

React Native for iOS and Android, a custom C audio engine, and ownership through publication on both stores.

Mobile App

Ruby on Rails App Redesign

We redesigned the app with zero downtime, achieving 20% more signups and 30% revenue increase.

Legacy Rails modernization