Membership-based loan platform
Improving the code quality and security of a loan administration system.
Web app development, DevOps, R&D
2018 - Ongoing
About Creditspring project
Creditspring brings a new personal finance model to the market. Through a monthly membership fee, users get access to a certain number of guaranteed, lighting-fast, on-demand loans each year. The lending process is fully transparent with no hidden costs.
Delivered solution
iRonin.IT’s experts worked on many elements of the Credispring app, improving the main tool used by the client’s team, creating new functionalities based on current needs (e.g. for loan restructuring), and creating a slicker, more user-friendly interface.

Goals and challenges

R&D and Proof of Concept development
Credispring approached iRonin.IT with a specific problem to solve, and we got to work right away. We based our approach on thorough research, made sure that our solutions would serve the client’s business needs, and built a proof of concept which was approved by Creditspring's CTO.
Fixing a central feature and improving UX
Creditspring’s admin panel needed to be more clear and coherent, with better filtering and sorting options. The goal was to improve the app’s UX and overall efficiency. To make sure we stayed on course, we defined project scope ahead of time and used daily standups to keep everyone up-to-date.
Establishing and enabling QA processes
A QA specialist could test the app and experience what users might, but we knew that users’ activities would impact their interactions with the app. To learn what would happen for users who hadn’t paid off their loans in time, for example, we shifted the app’s timeline several months forward.


  • Ruby
  • Rails
  • PostgreSQL
  • Sidekiq
  • Redis
  • jQuery
  • Stimulus.js
  • Heroku
  • RSpec
  • Equifax
  • Zendesk
  • Mixpanel


A refined administration panel
Our work on the administration panel involved UI improvements and new features. Integration with Zendesk enabled effective presentation of important data on the admin panel, including customer complaints and requests for account cancellation.
Time travel testing
By shifting Creditspring’s timeline in the app’s Quality Assurance process, we were able to test for issues that might come up months down the line, such as the consequences of unpaid loans for users who have been registered for months.
Custom configuration for data logging
As the entire app was hosted on Heroku, the client’s Datadog system needed to be, too. To this end, we added support for custom configuration for Datadog to Heroku’s official buildpack, and built a custom integration for Creditspring.
Alfredo Motta

We hired iRonin.IT with the goal of augmenting our in-house development team to build new functionalities for our front office and back office systems. iRonin.IT's skilled team of developers were crucial to the success of the project. Their collaborative approach supplemented their professional management style. Their attention to detail was also noteworthy.

Alfredo Motta, CTO @ Creditspring

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