Maria Eugenia Quemé Peña

Rising Codementor

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ABOUT ME

Analyst and Full stack developer wit 12 years of experience

I’ve been programming for over 15 years, with the last five years specializing in backend development on a Ruby on Rails monolith.

Central America (-06:00)

Joined July 2023

EXPERTISE

3 years experience

1 year experience

1 year experience

1 year experience

10 years experience

3 years experience

1 year experience

REVIEWS FROM CLIENTS

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SOCIAL PRESENCE

GitHub

spacer-api

Flashcards memorization API that uses the spaced memorization technique and keeps track of the learned concepts.

Ruby

tracker-api

Rails API application meant to be used by a web application that keeps track of users' workout exercises. it features documentation using Raddocs and Swagger

Ruby

EMPLOYMENTS

Software Engineer

Tapi

2025-10-01-Present

Resolved critical Sentry issues, removing blockers that prevented 10,000+ daily client cancellations, restoring system reliabilit...

Resolved critical Sentry issues, removing blockers that prevented 10,000+ daily client cancellations, restoring system reliability and customer self-service.
Enhanced repository workflows by enabling automated branch updates for backporting and auto-generating changelogs on release PRs, reducing manual effort and release friction.

Ruby on Rails

MySQL

Redis

Ruby on Rails

MySQL

Redis

Sidekiq

Software Engineer

Mastercard

2022-03-01-2025-09-01

Perform 30+ money bag chain migrations enabling millions of transactions per day.
Cached payment consults to eradicate pa...

Perform 30+ money bag chain migrations enabling millions of transactions per day.
Cached payment consults to eradicate payment failures.
Automated conciliation process by creating an endpoint to run conciliation of a given chain on demand in the admin page improving the re-process considerably.

HTML/CSS

Ruby on Rails

MySQL

HTML/CSS

Ruby on Rails

MySQL

Postman

Looker

AWS