Alois Carrera
Software Engineer | Data Specialist | Cloud Enthusiast
Summary
A technology professional adept at architecting, developing, and deploying comprehensive solutions that bridge business needs with technical execution. I leverage expertise across full-stack development (JavaScript/TypeScript, Python), data engineering (ETL/ELT, analysis, visualization), and cloud infrastructure (AWS, Azure) to integrate complex systems, streamline operations, and unlock actionable insights from data. Proven ability to deliver end-to-end projects, from designing scalable cloud architectures and building robust APIs to creating data pipelines and user-facing applications that drive efficiency and inform strategic decisions.
Work Experience(5)
- SQL
- Python
- PowerBI
- Marketing Analytics
- Consumer Insights
- Data Storytelling
Integrated CRM systems across LATAM by engineering a unique, uniform customer ID, establishing a centralized database for consumer insights across stores and countries. Performed RFM analysis and applied clustering algorithms to define distinct buyer profiles, and developed predictive models to forecast CLV and next-purchase behavior. Presented comprehensive historical churn analytics to the GM, successfully unveiling critical retention challenges to senior leadership. Designed Power BI dashboards to monitor the health and commercial KPIs of the CRM database, as well as the revenue attribution from targeted email campaigns. Further supported regional decision-making by collaborating on a foundational 'Share of Shelf' data model for upcoming store layout pilots, and delivering competitor pricing analytics to monitor market positioning.
- API Integration
- Data Analysis
- SAP Business One
- ETL
- Business Intelligence
- ICG Point of Sale
- React
- FastAPI
- Azure Container Apps
- Azure Functions
- Docker
- Azure Blob Storage
- Microsoft SQL Server
- PowerBI
- Python
Designed and maintained data pipelines and ETL/ELT processes connecting H&M Global API, SAP Business One, Galys WIS, and ICG POS for the H&M Central America and Caribbean Franchise. Built REST APIs, web applications, and custom automations to streamline logistics, merchandise auditing, and operational workflows. Leveraged Azure cloud services and analytics tools to deliver actionable insights, optimize data ingestion, and support regional decision-making.
- Nx Monorepo
- Serverless Framework
- Cybersource by Visa
- Next.js
- AWS Lambda
- MongoDB
- Elasticsearch
- Tailwind CSS
Led Eprezto’s international expansion, building scalable API-based vehicle insurance systems across Costa Rica, Guatemala, and the Dominican Republic. Managed payment gateway integrations, electronic document delivery with major insurers, and a compact development team. Established a monorepo with CI/CD using Nx, Next.js, and Serverless Framework, reducing code duplication through shared React/Tailwind components and reusable TypeScript interfaces.
- MySensors
- IoT
- NRF24L01+PA+LNA
- Arduino
- Capacitive soil moisture sensors
- InfluxDB
- Telegraf
- MQTT
- Grafana
- AWS IoT
- Systems Design
- Radio Frequency (RF)
Designed and implemented an intelligent IoT-based irrigation control system using Arduino, NRF24L01+ modules, and sensors for real-time soil moisture monitoring. Integrated InfluxDB, Telegraf, and Grafana for data logging and visualization, and leveraged AWS IoT as an MQTT cloud broker. Contributed to sustainable agriculture by enabling efficient, data-driven irrigation management.
- SEO
- Headless WordPress
- GraphQL
- Google PageSpeed
- Google Lighthouse
- Elasticsearch
- AWS Lambda
- MongoDB
- Next.js
- Tailwind CSS
Improved blog performance and SEO by migrating it from WordPress to Next.js with TailwindCSS. Enhanced the Bluebook tool for vehicle pricing and depreciation using Elasticsearch and AWS Lambda. Implemented PayCash API for cash payments, managing end-to-end integration from sandbox testing to live deployment and payment tracking.
Projects(9)
Developed an interactive data analysis application using Marimo and DuckDB to explore CRM data and uncover sales trends.
Designed an LLM-powered notes agent (React/FastAPI/Docker) utilizing PydanticAI for automatic summaries and structured insights.
Designed and deployed an internal middleware web app (React/FastAPI/Docker) for regional H&M stores to audit RFID-scanned merchandise and integrate with the ERP system, improving inventory accuracy.
Designed and deployed an internal web app (React/FastAPI/Docker) for H&M regional store employees to search item data, check stock, and print new price labels.
Expansion to Costa Rica market, collaborating with major insurance providers in the country (Quálitas, Grupo INS, Seguros Lafise, Mapfre)
Expansion of Eprezto platform to Guatemala (first Central American expansion), integrating with major insurers (Aseguradora General, Aseguradora Guatemalteca, Seguros Universales)
Executed a full blog migration from WordPress to a Next.js/Tailwind CSS Jamstack solution, improving Core Web Vitals. Content is delivered via Headless WordPress (GraphQL).
Augmented the Eprezto Bluebook platform to provide vehicle pricing segmented by year, using React, AWS Lambda, and Elasticsearch for data retrieval.
Developed and integrated a web utility into Eprezto Bluebook to calculate vehicle depreciation, leveraging React, AWS Lambda, and Elasticsearch for data access.
Education(1)
Development of original and tailored computing solutions, strong mathematical and computational foundation.
Awards(1)
Secured second place in the senior category of #HACK4EDU hackathon with a project named SINGSPA, a web application that makes easy for people to understand sign language using machine learning.