Gabriel Bernal

Sr. Software Engineer @MercadoLibre

Backend Developer✔️ IT🧑‍🔬 EngineerSystem ArchitectFrontend DeveloperDevOpsDatabase DeveloperiOS DeveloperWeb DeveloperComputer engineerData ScientistData EngineerAndroid Developer

MercadoLibre continues to experience strong growth as it expands its e-commerce and fintech services across Latin America. Key initiatives include developing a robust mobile platform, enhancing the user experience, and implementing advanced data analytics. As a Sr. Software Engineer, Gabriel Bernal is instrumental in these efforts, focusing on improving system performance, ensuring high-quality code, and leading innovative projects. Challenges include managing rapid growth, maintaining system security, and staying ahead of technological advancements. Opportunities lie in tapping into the region's growing digital economy and leveraging emerging technologies like AI and blockchain.

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Mercado LibreSoftware Engineer SR

Feb. 2021Bogotá, Distrito Capital, ColombiaDesign and implementation of FSMs to model computable solutions generating transactional increase of more than 300% in each one and reducing cost of change in applications by more than 80% and tending to zero downtime solutions. Design and implementation of deterministic solution for chaotic inventories based on market forecasts reducing Days-On-Hand by more than 70%. Flexible automated pricing solution with trading strategy simulation engine that guarantees quality of more than 97%. Pricing strategy management engine with syntactic and semantic strategy formulation checker. Design and implementation of abrupt price alert system with automatic product moderation, achieving losses due to erroneous price allocation of less than 0.002%. Data acquisition and processing using common BigData processing libraries. Design and implementation of data projections to create dashboard that displays trends, alarms and control actions across multiple applications (chaotic stock inventory, price alert manager, etc.), and allows users to zoom, filter and export data to make critical business decisions. Integration and automation of data with other systems, such as databases, cloud services or web applications, for data management. +100 mentoring slots to improve scalable system design capabilities of team's developers. Design of strategies to ensure quality in terms of testing and scalable and robust code in more than 4 (25+ services) scaling productive traffic to 100% Marketplace transactions in 18 countries where we have presence. +15 IT talks to improve developer's technical capacity.

SISTRAN ANDINAAnalista Desarrollador SR

Jan. 2017 - Jul. 2020Bogotá, Distrito Capital, ColombiaProvide specialized and personalized customer service in the maintenance and development of Core Business applications. Implement projects in OOP languages. Implement functional programming design patterns to improve process visibility from code and encourage single accountability in minimal software development units. Implement robust error management and propagation strategies and implement asynchrony between applications. implementation of asynchrony between applications based on messaging models and patterns as a consumer. Design, interpret, implement and document software solutions. Gather business information to build lightweight and effective domain models. effective. Minimize I/O side effects in software. Implement the use of event-sourcing and decoupling of applications to improve maintainability and to Implement decoupling to improve maintainability and encourage true modularity between components, minimizing lock-in and increasing cohesion between components. Implement the necessary solutions to carry out the integrations between the different technologies that are part of the orchestration of services for insurance companies.

SISTRAN ANDINAAnalista Desarrollador SSR

Feb. 2015 - Jan. 2017Bogotá, Distrito Capital, ColombiaDevelop business applications and integration in .NET in Framework 3.5 or higher. Apply design patterns to improve insurance company processes and minimize the occurrence of errors. Present to the client the business model for the developed applications and demonstrate the business process that support specific use cases. Testing of applications in QA environments. Identification of customer needs and presentation of software designs to meet them. Development of components to automate deployment tasks and documentation of the developed software.

SISTRAN ANDINAAnalista Desarrollador JR

Sep. 2013 - Jan. 2015ColombiaDevelopment of client-server applications and DB optimization. Deployment of applications in test and production environments. Creation of jobs that allow process automation. Creation of self-documentation of software deliveries with configurable templates for each client.