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GardPass Consulting & Space

[5758] Full-stack developer

GardPass Consulting & Space
Luxembourg · Contract · Entry
Contract type: Freelance

Location: Luxembourg

Working Model: On-site

Contract Duration: 650 Days + extensions

Experience:

  • 5 years of experience as a DBA, with a focus on cloud migration and database administration.
  • 5 years of experience with database design and development.
  • 5 years of experience of Oracle, Oracle Spatial, RDS, and PostgreSQL.
  • 2 years of experience with cloud migration, including data transfer and synchronization.
  • 1 year Experience with agile development methodologies (Scrum, Kanban).


Skills:

Java Development:

  • Upgrading from Java 8 to Java 17 or a higher version
  • Developing vendor-agnostic portable applications


Spring Boot:

  • Developing back-end applications.
  • Integrating Spring Boot applications with external services
  • Deploying Spring Boot applications on Apache Tomcat


API Development:

  • Developing OPENAPI-compliant Java-based REST APIs, and integrating with existing


RESTful services.

  • Designing and implementing APIs beyond traditional REST, including query-based (e.g.


GraphQL, SPARQL) and asynchronous interaction patterns.

Credential Management:

  • Securing applications and using secrets management tools like Hashicorp Vault.


Refactoring code to retrieve secrets securely from an external tool.

Dependency Management:

  • Using Maven to manage Java project dependencies.


Database Integration:

  • Working with Oracle databases and PostgreSQL, including data migration strategies.
  • Querying and updating relational databases (Oracle, PostgreSQL)


Containerization:

  • Containerizing applications with Docker, ideally with solutions compatible with cloudagnostic environments.


Messaging Platforms:

  • Integrating with Message Broker message streams (e.g. Kafka) used in distributed event


systems and asynchronous architectures.

  • Manage and define versioned data schemas in distributed events context.


Continuous Integration/Continuous Deployment (CI/CD):

  • Following CI/CD practices for automated testing, integration, and deployment.
  • Using GIT code repositories and delivery processes


Licensing and Compliance:

  • Working with licensing and compliance aspects and constraints of integrated components


and dependencies.

Framework Refactoring:

  • Refactoring applications from WebLogic to Tomcat.


Testing and Validation:

  • Testing and validation of application changes
  • Front-end testing with tools such as Mocha, Jest, Jmeter,or Cypress
  • Back-end testing with tools such as JUnit, Mockito, Postman, and Test containers


Documenting and Communication:

  • Documenting code and system configurations.
  • Communication and collaboration with other teams and stakeholders.
  • Providing modern, developer-friendly API documentation that includes an interactive


sandbox, clear integration examples, and structured tagging based on current best

practices.

Frontend Development:

  • Using modern JavaScript frameworks, specifically Angular and potentially eUI
  • Proficient use of HTML, CSS3, responsive and accessible design principles.
  • Working with frontend build tools like Webpack or Vite.


Cloud Platforms & Monitoring:

  • Development and integration of AWS, Azure, or GCP.
  • Implementing services using SaaS and CaaS hosting.
  • Integrating monitoring and logging tools such such as the ELK stack.
  • Monitoring data-flows and behaviours of event-based or asynchronous systems


Agile & Collaboration:

  • Working in Agile/Scrum environments.
  • Using tools like Jira, Confluence, Sharepoint and Teams for team collaboration.


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Key Skills

Ranked by relevance

oracle java spring boot cloud message broker javascript postgresql responsive confluence angular webpack postman docker apache kafka mocha maven scrum junit saas cicd jira git aws elk
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Country Guide

Luxembourg

High-value international enterprise and fintech hub

Posted
Feb 06, 2026
Type
Contract
Level
Entry
Location
Luxembourg
Company
GardPass Consulting & Space

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

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