Senior Java Developer – Spring Boot, Kafka, Kubernetes

HumanIT Digital Consulting

. Join a brand-new project with a technology-driven client .

Posted 11/12/2026full-timePorto • PortugalSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive backend development expertise with Java and Spring Boot, alongside practical experience in event-driven architecture using Kafka and container orchestration with Kubernetes. Strong communication skills in English facilitate collaboration within a dynamic team environment.

Highest-signal resume keywords

Java Backend DevelopmentSpring Boot FrameworkKafka Event-Driven ArchitectureKubernetes DeploymentMicroservices Architecture

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaSpring BootKafkaKubernetesMicroservicesCI/CD PracticesBackend DevelopmentEvent-Driven SystemsContainerizationOrchestration

Industry Keywords

Technology-Driven ClientDevelopment EnvironmentsProduction EnvironmentsTeam CollaborationProject Setup

Tech Stack

Tools & technologies

JavaKafkaKubernetesMicroservicesSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Join a brand-new project with a technology-driven client
Help shape the technical foundations of the solution
Develop backend services using Java and Spring Boot
Work with event-driven architecture using Kafka
Develop and support containerised services deployed and orchestrated on Kubernetes
Join a team of five senior developers being built from scratch

Requirements

What you’ll need

Ideally 5+ years of experience in backend development with Java (Mid-Senior to Senior level)
Strong hands-on experience with Spring Boot
Practical experience with Kafka and event-driven systems
Experience working with Kubernetes in development and/or production environments
Availability to work from the Porto or Coimbra office at least 2 days per week
English: B2 (Upper Intermediate) minimum, spoken and written
Preferred: experience joining or setting up projects from the early stages
Preferred: experience with microservices architectures in production
Preferred: familiarity with CI/CD practices in containerised environments

Benefits

Comp & perks

Hybrid work model with at least 2 days per week in the office
Opportunity to join a brand-new project from the start
Opportunity to help shape the technical foundations of the solution
Work with a modern, cloud-native backend stack
Join a team being built from scratch