Efrén Jiménez
@efrenjimenez
Full-stack software engineer who builds reliable production systems across frontend, backend, and data workflows.
SpainWhat I'm looking for
I’m a full-stack software engineer with experience building and operating production systems across frontend applications, backend services, and data workflows in distributed product environments.
I bring a strong hands-on background in React, TypeScript/JavaScript, Python, and AWS, and I focus on production debugging, reliability, observability, and automated testing while shipping end-to-end features with clear ownership.
At Eventbrite, I’ve built and maintained creator-facing backend services, frontend applications, and data pipelines across Pricing & Tax experiences, improving reliability through Datadog instrumentation and feature flags while delivering tax and financial-reporting features from business logic to event-creation UX.
I’ve also contributed to an AI automation initiative using agent-based tooling to accelerate new tax-jurisdiction implementation and generate E2E test scenarios from Jira, and I’ve debugged and resolved live incidents across both backend and frontend systems.
Experience
Work history, roles, and key accomplishments
Built and maintained creator-facing backend services, frontend applications, and data pipelines for Pricing & Tax experiences using Python, React/TypeScript, and AWS. Improved production reliability with Datadog instrumentation, feature flags, automated testing, and production-safe delivery; also contributed to AI automation for tax-jurisdiction implementations and E2E test generation from Jira.
Worked as a full-stack developer supporting production shopping card systems for El Corte Inglés, resolving backend and frontend incidents in live environments. Improved system stability and response times by diagnosing and fixing issues across distributed systems, and delivered RESTful integrations using Java/Spring and Angular.
Junior Software Developer
Guadaltel, S.A.
Jun 2022 - May 2023 (11 months)
Developed and maintained web applications using Java and Spring Framework with Maven, implementing backend functionality and business logic for client-facing software. Supported debugging, testing, and performance improvements to ensure application reliability and maintainable, scalable practices.
Education
Degrees, certifications, and relevant coursework
I.E.S. Julio Verne
Higher Technician, Web Application Development
Completed a Higher Technician program in Web Application Development at I.E.S. Julio Verne in Seville.
Universidad de Sevilla
Bachelor’s Degree, Physical Activity and Sport Sciences
Earned a bachelor's degree in Physical Activity and Sport Sciences from Universidad de Sevilla.
Tech stack
Software and tools used professionally
Availability
Location
SpainAuthorized to work in
Social media
Job categories
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