Software Engineer: Backend, Full Stack & DevOps

About

Key skills:

• Java
• Python
• Node.js
• Spring Boot
• Kafka
• Kubernetes
• Terraform
• AWS

1. 

   Backend Developer

   Apr 2025 – Present

   GFT Technologies (Outsourcing Inditex) · Málaga, Spain · Remote

   I am part of the core backend team building the platform that replaces our team's legacy system, the one Inditex and its sub-companies use to look up employee work-history data. We are about 40% through the migration.

   • I design and build synchronous (OpenAPI) and asynchronous (AsyncAPI) APIs across 3 internal services, using Java and Spring Boot on Amiga, Inditex's internal framework, with Kubernetes for deployment and Postgres and Kafka underneath. One of those three I built from scratch: the sync service that keeps the new platform's data up to date with every change made in the legacy system.
   • I also helped redesign the data model. Instead of the legacy system's opaque schema, we now have a clear, resource-aligned PostgreSQL structure, where a /positions endpoint is backed by an actual positions table, not a cryptic legacy code. I built the routing logic that cuts traffic over to the new system as each API finishes migrating.
   • Java
   • Spring Boot
   • Amiga
   • Kubernetes
   • PostgreSQL
   • Kafka
   • OpenAPI
   • AsyncAPI
   • TDD
2. 

   Technical Lead

   Mar 2024 – Apr 2025

   NTT DATA Europe & Latam (Outsourcing Allianz) · Barcelona, Spain · Hybrid

   I worked across three Allianz projects through NTT DATA, over about a year, moving between backend, frontend, and full-stack work depending on what each team needed.

   • Spain: I built backend APIs and contributed to the existing Angular frontend.
   • Italy: I joined Allianz's international team as a frontend developer, completing and polishing an existing product ahead of delivery.
   • Australia: I worked full-stack, backend and frontend at the same time.
   • Java
   • Node.js
   • Spring Boot
   • Angular
   • TDD
   • DDD
3. 

   Full Stack Developer / DevOps Engineer

   Jul 2022 – Dec 2023

   YT Rocket · Medellín, Colombia · Remote

   I worked on Naeku, a product for storing and distributing music and video to multiple Demand Side Platforms, and I was involved across every phase of building it.

   • I took part in architecture discussions, actively contributing technical designs and solutions for specific problems the team ran into. On the backend, we had Java microservices on Spring Boot and Quarkus alongside Python microservices on Django and FastAPI, backed by PostgreSQL and MongoDB, with Next.js on the frontend. I touched all of these.
   • I also led the DevOps side of the project, mostly on AWS. I owned the CI/CD pipelines and managed the infrastructure behind them: EKS, RDS, EC2, MSK, ECR, and Lambda, among other components.
   • Java
   • Spring Boot
   • Quarkus
   • Python
   • Django
   • FastAPI
   • Node.js
   • Next.js
   • PostgreSQL
   • MongoDB
   • Kafka
   • Kubernetes (EKS)
   • RDS
   • EC2
   • MSK
   • ECR
   • Lambda
   • Terraform
   • AWS
   • CI/CD
4. 

   Full Stack Developer

   Nov 2020 – Jul 2022

   Apiux Tech · Medellín, Colombia · Remote

   I worked on Librux, an internal Apiux product built to be offered as a SaaS: a document library where companies can store and index their documents, run any kind of search, set permissions across teams, and run update workflows that need review from specific members.

   • I was mainly a backend developer on Java and Spring Boot, and since we had designed the application from scratch, I was involved in real technical and architecture decisions throughout. At points in the project, I also acted as technical lead, with direct contact with the client and leading a team of 3 to 4 people, and I mentored junior developers who joined to help us out.
   • The project had customized versions for 2 client companies, each needing specific functionality added.
   • Java
   • Node.js
   • Spring Boot
   • React
   • GCP
   • PostgreSQL
   • MongoDB
   • Kafka
5. 

   Full Stack Developer

   Apr 2019 – Nov 2020

   SoftCaribbean · Medellín, Colombia

   • Outsourcing Sura

     Jun 2019 – Nov 2020

     Medellín, Colombia · Remote

     I worked as both a backend and frontend developer, maintaining several applications tied to Sura's health insurance policy services, using Java, Spring Boot, Angular, and Oracle with PL/SQL. I also led a project.

     • It was a small internal effort with a team of 3: myself, another backend developer, and someone on frontend. I worked backend there too while leading it.
     • Java
     • Spring Boot
     • Angular
     • Oracle PL/SQL
     • Jenkins

   • Outsourcing Duratex-Tablemac

     Apr 2019 – Jun 2019

     Medellín, Colombia · On-site

     I built both the backend and frontend for a multi-level purchase approval application covering budget-based approval requests across different company areas, using Java and Spring Boot on the backend, Angular on the frontend, and Microsoft SQL Server as the database. Deployment ran on the client's own servers.

     • The database schema was hard to work with directly, so every query went through stored procedures and functions instead of querying tables directly, and any change we needed meant adjusting those procedures rather than the queries themselves.
     • Java
     • Spring Boot
     • Angular
     • SQL Server
     • Tomcat
6. 

   Full Stack Developer

   Feb 2015 – Apr 2019

   Surcolombiana University · Neiva, Colombia · On-site

   I started here as a full-stack developer, working on backend and frontend at the same time. My first task was supporting and modernizing 3 applications, moving them from WAR projects with Servlets to Spring Framework 3, and from JSP on the frontend to AngularJS and later Angular 2 and 4.

   • As I gained experience, I took on responsibility for more applications going through the same kind of modernization. We worked with PostgreSQL and Microsoft SQL Server as our databases. I managed a local datasource where I deployed the applications under my responsibility.
   • Java
   • Spring Boot
   • Angular
   • AngularJS
   • PostgreSQL
   • SQL Server

Education

• 

  Master's degree in DevOps & Cloud ComputingDouble degree

  May 2021 – Jun 2022

  Three Points + Polytechnic University of Catalonia (UPC) · Barcelona, Spain

• 

  Bachelor's degree in Software Engineering

  Jul 2013 – Nov 2018

  Surcolombiana University · Neiva, Colombia

Certifications

Languages

• ES

  SpanishNative

• EN

  EnglishProfessional working

  Working experience on international projects with teams in Europe, Latin America and Australia.

• PL

  PolishSuper A1

  Learning it just because my girlfriend is Polish. Dziękuję!

Skills

Number = roles in Experience that used it

• Backend

  6
  • Java6
  • Python (Django, FastAPI)1
  • Node.js3
  • Spring Boot6
  • Quarkus1
  • Microservices Architecture

• Frontend

  3
  • React1
  • Next.js1
  • Angular3

• Data & Messaging

  4
  • PostgreSQL4
  • MongoDB2
  • Kafka3
  • Redis

• DevOps & Cloud

  10
  • Kubernetes2
  • Docker
  • Terraform1
  • CI/CD1
  • AWS1
  • GCP1
  • Grafana
  • Prometheus
  • Keycloak
  • Auth0

• Practices & AI

  4
  • TDD2
  • DDD1
  • Team Mentoring
  • AI-assisted development (Claude Code, GitHub Copilot, Cursor, OpenCode)