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Q-tech

Senior FullStack – Java/React

Q-tech

. Develop and evolve features on a multi-tenant, service-oriented platform .

Posted 10/27/2026full-timeBarcelona • SpainSenior💰 €50,000 - €60,000 per yearWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in Full Stack Engineering with a focus on Java (Spring Boot) and React, while effectively managing high-volume data and adhering to quality and security standards in regulated environments.

Highest-signal resume keywords
Full Stack EngineeringJava (Spring Boot)ReactMicroservices ArchitecturePostgreSQL

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
JavaSpring BootReactPostgreSQLMicroservicesService-Oriented ArchitectureHigh-Volume Data ManagementAI-Assisted Development ToolsArchitecture GuidelinesAutomated Asset Tracking
Soft Skills
Methodical ApproachStructured Engineering
Tools & Technologies
Microsoft Azure
Industry Keywords
Regulated EnvironmentsQuality StandardsSecurity Standards

Tech Stack

Tools & technologies
AzureJavaMicroservicesPostgresReactSpringSpring BootSpringBoot

About the role

Key responsibilities & impact
  • Develop and evolve features on a multi-tenant, service-oriented platform
  • Lead the platform’s modernization from traditional Java enterprise containers to Spring Boot, React, and microservices
  • Separate and integrate microservices within a service-oriented architecture
  • Help build a new module for automated asset tracking using digital chips
  • Work with high-volume data
  • Collaborate closely with the platform’s lead architect, following architecture guidelines and receiving technical mentoring
  • Develop the company’s main customer platform serving web and mobile users across 25+ languages

Requirements

What you’ll need
  • Solid experience as a Full Stack Engineer with Java (Spring Boot) and React
  • Experience with PostgreSQL
  • Experience with service-oriented or microservices architectures
  • A methodical, structured engineering approach
  • Experience working in regulated environments with demanding quality and security standards
  • Microsoft Azure experience is a plus
  • Hands-on experience with AI-assisted development tools is highly valued
  • Ability to work with high-volume data

Benefits

Comp & perks
  • Health assurance
  • Learning budget
  • Hybrid model: 2 days a week in the Barcelona office