RESUME - Guadua Studio

[ zone 1 · origin ]

Senior Software Engineer — Backend

Telecommunications Engineer with 10+ years of backend development experience, specializing in Java and Spring Boot but comfortable moving between different stacks and languages depending on what the project needs. Master's degree in Artificial Intelligence (UNIR). Among my interests is building software with integrated AI, applied to real products.

Education

Telecommunications Engineering — Universidad Autónoma de Madrid, 2015

Master's Degree in Artificial Intelligence — Universidad Internacional de La Rioja (UNIR), 2022–2023

[ zone 2 · present ]

2023 — today

knowmad mood — Madrid, Spain · April 2026 – present

Java Developer — Agentic AI adoption project (GitHub Copilot)

I take part in the development team's agentic AI adoption project, focused on assistants and copilots for developers using GitHub Copilot.
I collaborate on designing and implementing AI-assisted workflows integrated into the development lifecycle with Java and Spring Boot.

knowmad mood — Madrid, Spain · January 2023 – present

Senior Java Developer — Mutua Madrileña project

Backend development of a mission-critical car insurance policy management application, covering policy issuance, appraisal, quoting, and endorsement management.
Designed and integrated REST APIs across application layers using Java 8/11 and Spring Boot, within an 8-person Agile Scrum team.
Complementary frontend work with JSP and JavaScript; builds with Maven and Gradle; Git and Jira.

[ zone 3 · growth ]

2018 – 2022

Qindel Group — Madrid, Spain · April 2021 – December 2022

Senior Java Developer

Year-long migration of the payment gateway for Inditex's major retail chains (Pull&Bear, Massimo Dutti, Bershka, Stradivarius, Oysho, Uterqüe), transforming a Java monolith into a microservices and REST API architecture.
Ongoing maintenance of the migrated system in production after the project closed, within an 8-person Agile Scrum team.

BBVA Technology in Europe — Madrid, Spain · January 2020 – April 2021

Senior Fullstack Developer

Maintained and evolved BBVA corporate applications, resolving backend issues (Java, microservices, REST APIs) and frontend issues (proprietary Cells framework).
Coordinated a team of 3 developers, taking ownership of technical and team conflict resolution.

Techonrails — Madrid, Spain · March 2018 – January 2020

Senior Java Developer

Developed control centers for trains and metro systems deployed on international projects in India, Brazil, and Australia, adapting a core Java product to country- and client-specific regulations and requirements.
Worked within a 6- to 8-person Scrum team on mission-critical rail operations software.

[ zone 4 · early steps ]

2016 – 2018

GFT Technologies España, Actycrea y Sngular — Madrid, Spain

Fullstack Developer

Backend development in Java and frontend development with Angular, Polymer, JavaScript, and jQuery for clients including CaixaBank and BBVA, and internal digital agency projects.

[ zone 5 · stack ]

Technical skills

Languages

Java 8/11PythonCJavaScript

Frameworks / Backend

Spring BootSpring Framework 5REST APIsMicroservices

Frontend

AngularJSPPolymerjQueryCSS3

Tools

MavenGradleGitJiraJUnitMockito

Interest: Applied AI

GitHub CopilotClaudeAgentic workflowsRAGLLM APIs

Technologies I'm interested in exploring further, not established professional experience.

Methodologies

ScrumKanbanAgile

[ zone 6 · let's talk ]

Let's talk

If your team is looking for a wonderful backend developer, let's talk.

Languages

Spanish — Native
English — Professional Working

Contact

Email jenniffer@guaduastudio.com

LinkedIn linkedin.com/in/jennifer-cubillos

Location Madrid, Spain · Remote (preferred) / Hybrid