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Rubén JiménezRJ

Rubén Jiménez

Tech Lead | Software Development

€300/day
Madrid, ES
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Rubén

Hello, I'm Rubén, a software engineer with over 15 years of experience helping companies turn ideas into scalable technological solutions.
I specialize in the design and development of backend applications (Java Spring, Python, Node.js) and frontend (Vue.js, React), as well as cloud architectures on AWS.
Throughout my career, I have led technical teams and participated in MVPs, PoCs, and innovation initiatives, always with a practical, results-oriented approach.
If you need to improve your architecture, launch a product, or scale your platform, I can help you do it solidly and efficiently.
  • Spanish

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • JogoTech S.L.
    Technology Lead
    January 2024 - March 2026 (2 years and 2 months)
    Madrid, Spain
    As Technology Lead at Jogo, I lead the technological strategy for the Phygital platform designed to revolutionize the retail experience. Focused on creating scalable, secure, and efficient solutions that integrate the physical and digital worlds through technological innovation, real-time data, and a flexible architecture.

    Technological Leadership & Strategy
    - Architecture Definition: Design and evolution of a microservices-based infrastructure, ensuring scalability, resilience, and optimal performance.
    - Omnichannel Experience: Development of the digital ecosystem that connects physical stores with online platforms, optimizing real-time customer interaction.
    - Retail Innovation: Implementation of technology to improve operational efficiency and personalize the shopping experience.
    - Cloud & DevOps: Infrastructure strategy and cloud automation to ensure flexibility, security, and scalability.
    - Team Management and Agile Culture: Leadership of multidisciplinary teams, promoting a mindset of innovation and continuous improvement.

    At Jogo, we create immersive experiences that combine the physical and digital worlds, from frictionless payments to predictive analytics for retailers. My mission is to drive product development with cutting-edge technology, ensuring the platform evolves with market needs.

    - Java, maven, spring-boot (rest of Spring ecosystem), Python
    - OpenAPI, Service Architectures
    - IoT & RFID
    - Docker, Rancher, k8s.
    - MongoDB, PostgreSQL, Oracle
    - Terraform, Helm.
    - CI/CD: Jenkins, SonarQube
    - AWS, Azure, GCP.
    - Vuejs, css, NodeJs
    - Agile Methodology (Scrum), Atlassian Suite: Jira, Confluence, etc.
    EKS AWS AWS Lambda Python Node.js
  • Minsait
    IT Architecture Manager
    October 2021 - January 2024 (2 years and 3 months)
    Madrid, Spain
    Head of the Back Architecture unit:
    - Coordination and direction of the Back developers and architects unit (50 people)
    - Economic management and budget planning.
    - Ensuring compliance with the unit's roadmap and value propositions.
    - Technical and strategic decision-making.
    - Analysis and digital transformation plans for Phygital and Onesait products.
    - Consulting, analysis, and estimation of new products or projects.
    - Business support in solution design and ensuring development execution.
    - Staffing tasks: vendor management, selection process, interviews,...

    Head of the Phygital Infra & Cloud unit:
    - Coordination and direction of the On-Premise & Cloud infrastructure team.
    - Estimations and proposals - Primarily: AWS, Azure, GCP
    - Infrastructure designs, disaster recovery plan.
    - Support in product and project implementations.

    Responsible for operations in products and projects in various fields (Energy, Public Administrations, Industry), some of the main tasks:
    - Coordination and management of multidisciplinary teams (Back, UX, Front, Data).
    - Economic management and project roadmap compliance.
    - Technical and strategic decision-making, ensuring business objectives and technical solution assurance.
    - Liaison between business and technology.
    - Ensuring compliance with standards defined by transversal units.

    Main technologies:
    - Java (11, 17), maven, spring-boot (rest of Spring ecosystem).
    - OpenAPI, Service / Microservices Architectures, Kafka.
    - Docker, Rancher, k8s, OpenShift.
    - MongoDB, PostgreSQL, Oracle
    - Terraform, Helm.
    - CI/CD: Jenkins, SonarQube
    - AWS, Azure, GCP.
    - Agile Methodology (Scrum), Atlassian Suite: Jira, Confluence, etc.
    VueJS Kubernetes Spring boot PostgreSQL API Gateway
  • Bankinter
    Tech Lead / Scrum Master
    May 2019 - October 2021 (2 years and 5 months)
    Madrid, Spain
    Involved in the banking Digital Transformation process, currently focused on the new Personal Banking App and the Broker App. Responsible for leading the development team and the quality of the products delivered. Technical/architectural and strategic decision-making.
    Responsible for the agile management of the project, removing any difficulties or blockers that prevent the team from achieving the goal set in the Sprint. Project economic management and commercial relationship with suppliers. Coordination with other internal departments (Architecture, Security, etc.) and follow-up.
    Java SpringBoot Kubernetes Dynatrace API REST

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Education

  • Professional Scrum Master I
    PSM I
    Profesional Scrum Master I
  • Technical Computer Engineering in Management, Computer Engineering
    Universidad Rey Juan Carlos
    Ingeniería Técnica Informática de Gestión, Ingeniería informática

Skill set

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