German Steven Vera Amaya
@germanstevenveraamay
Data engineer building scalable ETL pipelines and back-end services with AWS/GCP, Python, and PostgreSQL integration.
What I'm looking for
I build and support back-end systems and data flows, from maintaining the TAKEITS web application to integrating Mercado Libre Flex and adding QR code scanning for smoother delivery and automation. I’ve also developed and maintained modular microservices for the digital credit lifecycle at WAU, including reusable service libraries and amortized cost calculations, with unit testing that cut bugs by 30%.
At Leanware, I optimized ETL execution time (30 minutes down to 5) using efficient PostgreSQL strategies and set up asynchronous PostgreSQL connections for large-volume inserts. I’ve worked with AWS services like Glue, S3, Lambda, SQS/SNS, and DynamoDB, and I design data/migration workflows across multiple environments with Python and SQL.
Experience
Work history, roles, and key accomplishments
Back End Developer
Jan 2021 - Present (5 years 7 months)
Worked as a Back End Developer at Takeits - Logistics Management for Businesses.
Developed and maintained the TAKEITS web application to ensure robust performance and scalability.
Integrated Mercado Libre Flex to streamline delivery order management, enhancing operational efficiency.
Implemented QR code scanning functionality within the application, improving user experience and process automation.
Technologies used: GCP (Compute Engine, Cloud Storage, SQL - PostgreSQL), Node.
• Developed and maintained modular microservices for the digital credit lifecycle, enhancing application efficiency.
• Designed reusable service libraries and implemented amortized cost calculations, streamlining financial processes.
• Ensured high code quality through comprehensive unit testing, leading to a 30% reduction in bugs.
• Leveraged RabbitMQ for efficient asynchronous communicatio
Back End Developer
Bantrab - Fixed-Term Savings, Digital Credit, and Amortized
Jan 2025 - Jan 2025 (0 months)
Worked as a Back End Developer at Bantrab on fixed-term savings, digital credit, and amortized cost microservices.
Back End Developer
Jan 2025 - Jan 2025 (0 months)
Worked as Back End Developer at Bantrab - Fixed-Term Savings, Digital Credit, and Amortized Cost Microservices.
Optimized ETL processes, significantly reducing average execution time per file from 30 minutes to 5 minutes using efficient database strategies with PostgreSQL.
Configured asynchronous PostgreSQL connections for efficient handling of large-volume data insertion.
Utilized DynamoDB for inserting trading strategy configurations sourced from Google Sheets.
Led data migration projects across multiple
Worked as a Data Engineer at 2Moon Capital.
Designed an architecture to normalize data from multiple sources using an API Gateway.
Determined synchronization of APIs, data retrieval, processing methodologies, and storage in DynamoDB to ensure data availability for clients.
Integrated 17 third-party APIs using NestJS, Jest, Serverless, Lambda, and S3.
Developed unit tests to ensure functionality and reliability of API integrations.
Implement
Worked as a Back End Developer at Monstro, a stealth fintech company.
Developed a SaaS API for an academy and course management application, enabling the creation of study academies and individual subjects for each academy.
Implemented a multitenant architecture to provide separate databases for each academy, ensuring data isolation and scalability.
Integrated OAuth2 authentication with Facebook and Google to provide seamless and secure login experiences.
Implement
Developed a PWA Administrative Management Web Application called VIIA Work.
Implemented 5 modules for resource and user management.
Customized UI and UX for the VIIA Work PWA Administrative Management Web Application.
Technologies used: HTML5, CSS, Stylus, Quasar
Developed a Phone Management Module for MCT PLUS using Quasar for frontend, Laravel for backend, and MySQL for database.
Implemented a module for assigning phones, lines, and devices to internal or external personnel, designed to be multi-company capable.
Technologies used: Quasar (frontend framework), Laravel, MySQL
Back End Developer
Jan 2020 - Jan 2021 (1 year)
Worked as a Back End Developer on a multitenant SaaS for academy and course management.
Developed the Payroll System Ecuador, Nomina360, using Quasar for frontend, Node.js for backend, and MongoDB for database.
Updated Nomina360 to comply with Ecuadorian laws.
Implemented client module, data visualization, report generation, and web application tour configuration.
Technologies used: Quasar Framework, Node.js, MongoDB, AWS EC2
Developed an Administrative Application for Small Groups using Angular and Firebase, integrating Google Maps service.
Maintained a Study Control System using Scriptcase and MySQL, focusing on report generation.
Provided Help Desk support for departments within the Universidad Adventista de Venezuela (IUNAV).
Technologies used: Angular, Firebase, Google Maps API, Scriptcase, MySQL
Education
Degrees, certifications, and relevant coursework
Platzi
Coursera
Udemy Alumni
Adventist University of the Philippines
Associate's Degree
TERRITORIA
Bachelor of Computer Science
Territorial Polytechnic University of Yaracuy Arístides Bastidas
Bachelor's degree, Computer Science
2020 - 2021
Adventist University of Venezuela
Associate's degree, Computer Science
2013 - 2016
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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