Freelancer profile translated to English.
Back to original languageAbout Jonathan
I help development and data teams ensure the quality of APIs and pipelines through backend automation, data validation, and performance testing.
Experience in distributed and event-driven systems, where ensuring integrity, consistency, and stability is critical for the business.
I work with Product and Development to define acceptance criteria, break down functional stories, and ensure quality is designed from the start.
Core Competencies
Backend Automation: Java, Karate, Cucumber, Postman
Data Quality: Kafka, Spark, Avro, SQL
Performance: JMeter
DevOps for QA: GitHub/GitLab CI, Docker, reporting and observability
Scripting: Python, JavaScript
Available to collaborate on projects where the technical quality of the backend and data is key to product evolution.
Spanish
Native or bilingual
English
Basic
Remote only
Primarily works remotely
Experience
- REGIS-TR (Grupo BME)QA Automation EngineerFebruary 2024 - Today (2 years and 3 months)Madrid, Spain• Test automation with Cucumber, Karate, and Postman to increase coverage and efficiency.• E2E, unit, and component testing to ensure performance and functionality.• Documentation of plans and results in Xray/Jira within agile frameworks.• Validation of microservices and Kafka in big data environments (scalability and reliability).• Focus on quality of distributed systems and data pipelines; integration with CI/CD.
- ItegGo ConsultingQA Automation Lead / IT Project ManagerJune 2022 - February 2024 (1 year and 8 months)Madrid, SpainQuality team leadership; testing strategy and reporting. Automation with Karate, Selenium, UFT One, Appium, and custom Java framework.• CI/CD with Azure DevOps and Jenkins.• API automation with Groovy, SoapUI, and Postman.
- REGIS-TR (Grupo BME)QA Automation EngineerMarch 2022 - June 2022 (3 months)Madrid, Spain• Data generation and manual testing.• Test plan creation.• Functional automation with Python.• Technical documentation of tests and code.
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Education
- Higher Degree in Network Computer Systems AdministrationASIR2018CFGS Administración de Sistemas Informáticos en Red
- ISTQB® Certified Tester Foundation Level (CTFL)Brightest2024ISTQB® Certified Tester Foundation Level (CTFL)