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Lionard L.LL

Lionard L.

Senior Software Developer | DevOps | Cloud Engineer

€300/day
Madrid, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Lionard

I am a Senior Software Engineer passionate about developing software that not only works but is elegant, efficient, and easy to maintain. I specialize in applying Clean Code and Clean Architecture principles, ensuring that each solution is scalable, sustainable, and adaptable to business needs.

With over 10 years of experience in backend and cloud technologies, I have worked with a wide spectrum of tools and frameworks, including Azure and microservices integration. I master design patterns that allow building robust and flexible architectures, always with a focus on quality and efficiency.

My experience in Cloud and DevOps allows me to integrate CI/CD, Docker, Kubernetes, and other technologies to optimize development and ensure fast and secure deployments. I collaborate closely with my clients to understand their specific challenges and deliver customized solutions that drive their strategic objectives.

If you are looking for a software engineer who combines technical excellence with a proactive, results-oriented approach, I will be delighted to help you take your projects to the next level.

Let's talk and discover how I can contribute to the success of your next project.
  • Spanish

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • TELEFÓNICA
    Software Engineer
    January 2022 - Today (4 years and 5 months)
    • Apply specialized knowledge to define the different layers of the architecture, adapting them according to the current ("AS IS") and future ("TO BE") needs of the company, respecting established principles, guidelines, standards, and artifacts.
    • Development and maintenance of systems based on Java and cloud technologies like Azure, including integration of API Gateway, API Management, microservices, Docker, Kubernetes, and CI/CD, using tools like Jenkins.
    • Leveraged WSO2 in on-premise environments to manage APIs and integrations, ensuring secure and efficient communication between enterprise systems and services. In a project for a financial services company, I implemented WSO2 to integrate legacy systems with modern microservices, facilitating a seamless data flow across departments.
    • Developing and maintaining CI/CD pipelines using Groovy, which was instrumental in automating build, test, and deployment processes. Groovy scripts were utilized to customize Jenkins pipelines, enabling advanced automation features, such as dynamic configuration of environments, parameterized builds, and complex workflow orchestration.
  • RAPPI
    Software Developer
    March 2021 - January 2022 (10 months)
    • Design and develop efficient microservices using Java and Kotlin, focusing on creating robust and scalable systems.
    • Implement efficient DevOps practices, facilitating agile deployments through Slack commands, ensuring high levels of code coverage.
    • Manage performance and troubleshoot in production environments, using tools like APM for monitoring and tracing.
    • Use Splunk not only for monitoring and diagnosing errors like HTTP, but also for deeper analysis, including identifying unusual traffic patterns, diagnosing performance issues, and making informed scalability decisions like increasing instances, etc.
    • Deployed AI applications in Docker containers to facilitate easy packaging, deployment, and scalability.
  • Tata Consultancy Services
    Senior Software Engineer
    January 2020 - March 2021 (1 year and 2 months)
    • Implemented Clean Code and Test-Driven Development (TDD) principles, improving code quality metrics by 40% and reducing bug incidents by 30%.
    • We used Java with Spring Boot to develop individually containerized microservices using Docker. For the orchestration of these containers, we employed Kubernetes, which facilitated more efficient and scalable deployment (dev, cert, prod).
    • In the DevOps realm, I worked closely with the team to optimize our CI/CD pipeline, which uses Jenkins and integrates SonarQube for static code analysis. This collaboration contributed to improving the development team's efficiency and ensured that the deployed code met quality and security standards.
    • Additionally, I participated in the implementation of a Service-Oriented Architecture (SOA) that facilitated more efficient communication between various microservices and external systems. Depending on the service's needs, we used SOAP and REST protocols to ensure effective and secure communication between services.

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