Banco Caja Social · Jun 2022 — Oct 2024 · Bogotá
Frontend Developer
I started out building technology for Marketing, and the visibility of that work led me to CDT Digital, the product for opening a certificate of deposit (CDT) 100% online.
- CDT Digital: over COP 2 billion (≈ USD 500K) raised in two years
- The bank's best product three years in a row; the team won an award
- Test-driven development (TDD) under banking security standards
Phases
Jun 2022 — 2023
Technology for Marketing
My first year was in the Marketing department, integrating the bank with marketing service providers and building internal platforms for the team. That work got noticed by other senior management areas and opened the door to CDT Digital.
- Internal platform to create and manage UTMs for marketing campaigns.
- Integrations with marketing service providers.
- The bank's own version of the digital Christmas novena.
Projects from this phase
- UTM platform and marketing integrations
Internal platform to create and manage campaign UTMs, plus integrations with marketing service providers.
- One Christmas novena, eight brands
A mobile-first app for praying the novena, a Colombian Christmas prayer tradition, with each company's logo, colors and illustrations. It started as a template, and I rewrote it from Create React App to Vite.
2023 — Oct 2024
CDT Digital
On the CDT Digital team, we built the MVP and then the improved version of the product that lets customers open a CDT on the web, quickly and securely. We worked with TDD, a methodology that was new to me and turned out to be the best I've used, under a bank's quality and information security controls.
- Over COP 2 billion (≈ USD 500K) raised in the first two years.
- The bank's best product three years in a row; the team won an award.
- Still in production exactly as we left it.
- React
- Next.js
- NestJS
- TypeScript
- SonarCloud
- Azure DevOps
Projects from this phase
- CDT Digital: opening a CD without setting foot in a branch
We built the entire product, from the full frontend to the integrations with the bank's core systems. It was the bank's best product three years in a row, the team won an award for it, and it's still in production exactly as we built it.