HumanIT Digital Consulting

Java Backend Developer

HumanIT Digital Consulting

full-time

Posted on:

Location Type: Hybrid

Location: Lisbon • Portugal

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Tech Stack

AnsibleAWSCloudDockerEC2JavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQSpringSpring BootSpringBootSQL

About the role

  • Contribute to the development and operation of core backend systems powering large-scale logistics and distribution platforms
  • Handle high-volume data processing and real-time operations
  • Involved across the full DevOps lifecycle—from design and implementation to deployment and monitoring
  • Build microservices-based architectures in a cloud environment
  • Work within a distributed international team
  • Collaborate closely with cross-functional stakeholders to deliver impactful digital products

Requirements

  • Bachelor's or Master's degree in Computer Science, Engineering, Mathematics, Physics, or similar
  • Professional experience in backend software development
  • Strong expertise in Java 17+ and Spring Framework (Spring Boot)
  • Experience designing and developing RESTful APIs
  • Hands-on experience with message brokers/streaming platforms (Kafka, RabbitMQ, or AWS SQS)
  • Solid knowledge of SQL databases, particularly PostgreSQL 13+
  • Experience with CI/CD tools such as Jenkins and Ansible
  • Practical experience with AWS Cloud services (EC2, S3, RDS, Lambda)
  • Familiarity with Docker and Kubernetes for containerization and orchestration
  • Experience working in Agile/Scrum environments
  • Strong communication skills in English (B2+ minimum)
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Java 17+Spring FrameworkSpring BootRESTful APIsSQLPostgreSQL 13+CI/CDJenkinsAnsibleAWS Cloud
Soft Skills
communication skillscollaborationcross-functional teamwork
Certifications
Bachelor's degreeMaster's degree