Alejandro Marcos Jemic

Full-stack engineer on a business-critical retail pricing platform built with C#, .NET, React, federated GraphQL, Kafka, SQL Server, and CockroachDB. Implemented core backend components for pricing and discount workflows, including Kafka consumers, business validation, alerting, and error-registration flows to enforce pricing rules at runtime. Built an ACL/integration bridge connecting internal workflows with a legacy downstream system through Kafka messaging. Created the GraphQL bridge between backend services and frontend workflows in a federated GraphQL setup and bootstrapped a React-based microfrontend for bulk discount uploads. Supported production in a broader microservices/microfrontend ecosystem with enterprise integrations. Leveraged SQL, Grafana, Splunk, and observability data for validation and troubleshooting in a low-latency, high-reliability environment. Worked in containerized and cloud-based delivery environments, collaborating with deployment workflows and cross-team c

Designed and delivered web and mobile solutions for enterprise clients including Enel LATAM, Movistar, and WOM, using React, JavaScript, TypeScript, C#, .NET, and API integrations. Built and integrated asynchronous services and APIs for high-demand business scenarios with emphasis on reliability, maintainability, and performance. Contributed to technical decisions, delivery coordination, and multi-team execution as a lead engineer. Worked with AWS services and deployment-related workflows from a development perspective, and collaborated in environments using Docker, CI/CD practices, and distributed service architectures.

Developed web, backend, and mobile applications for clients such as Aramark and SAG using C#, ASP.NET, SQL Server, JavaScript, React, HTML, and CSS. Worked on integration-heavy business systems and contributed across backend logic, frontend implementation, and Agile delivery. Supported cloud-based and containerized development environments, including AWS-related workflows and Dockerized setups that improved portability and delivery efficiency.