Josué Martínez Rodríguez

Key Achievements:

• • Led backend development and architecture for a large-scale payment system with NestJS and AWS

• • Handled over 1000 cross-border transactions without financial loss

• • Designed and deployed notification services (email + push) achieving over 80% delivery success

• • Supervised two engineers, conducted peer code reviews, and acted as liaison with stakeholders

• • Delivered over 85% of tasks on time and received consistent approval from the architect

Technologies:

NestJS, React, TypeScript, Nx, AWS, SES, SNS, CloudWatch, OpenSearch, Hyperwallet, Tailwind, Jira, Confluence, Lucidchart

Key Achievements:

• • Led a high-speed 3-week delivery of a full web application rebuild from scratch

• • Designed architecture, assigned roles, and managed a cross-functional team (developers, QA, scrum master)

• • Deployed production-ready system with zero launch-blocking bugs and onboarded 100+ service providers

Technologies:

TypeScript, Chakra UI, Firebase, Firebase Functions, GitLab, OpenAI API

Key Achievements:

• • Developed UI and backend features for personalized onboarding journeys in a financial platform

• • Contributed to an investment opportunity application, focusing on QA processes for health and high-tech sectors

• • Refactored legacy code to enforce maintainability and consistency across the codebase

• • Implemented ESLint + Prettier git hooks for quality enforcement and code standardization

• • Delivered 95% of tasks on time; fewer than 5% of assigned features reported post-release bugs

Technologies:

Next.js, Cypress, Mocha, AWS, Lambda, API Gateway, TypeScript, Express, Jira, Confluence, Custom API, Fenx

Key Achievements:

• • Designed and led development of a public, real-time transportation platform (3 apps: driver, passenger, admin)

• • Implemented GPS, accelerometer, Google Maps & Places API, camera, file handling, persistent state machines, and rich push notifications

• • Architected backend using Firebase Functions and Firestore with race-condition-safe logic for taxi assignment

• • Managed 2–4 person dev teams, conducted reviews, assigned tasks, and ensured project delivery

Technologies:

React Native, TypeScript, Expo, Firebase, Firebase Auth, Firebase Storage, EAS, XState, Google Cloud, background services

Key Achievements:

• • Rebuilt and maintained front office, back office, and mobile systems using TypeScript, React Native, and Next.js

• • Migrated backend services to Django and Python with custom views, serializers, and API endpoints

• • Designed internationalized and responsive components from scratch

• • Integrated biometric authentication and native device features (camera, sensors, etc.) in mobile apps

• • Version-controlled all systems using Git and enforced clean code practices

Technologies:

React Native, Next.js, TypeScript, Django, Python, Git