Senior Java Developer

1 000 - 1 300 PLNGross per day - Mandate

Senior Java Developer

Java

Krakow, Kraków

INFOPLUS TECHNOLOGIES

1 000 - 1 300 PLN
Gross per day - Mandate
Full-time
Mandate
Senior
Hybrid

Tech stack

    English

    B2

    Java 18

    master

    Spring Boot

    master

    RESTful APIs

    master

    Jenkins

    master

    GraphQL

    advanced

    PostgreSQL

    advanced

    MySQL

    advanced

    MongoDB

    advanced

    Hibernate

    advanced

    Docker

    advanced

Job description

Please find below JD:


Key Responsibilities:

 

  • Design, develop, and maintain high-performance backend applications using Java 18+ and Spring Boot

  • Build and consume RESTful APIsGraphQL services, and document them using OpenAPI/Swagger

  • Work with relational and NoSQL databases like PostgreSQLMySQL, and MongoDB using Hibernate and JPA

  • Implement CI/CD pipelines using JenkinsGitLab CI/CD, or GitHub Actions

  • Develop and deploy containerized applications using Docker and orchestrate them with Kubernetes

  • Integrate with Azure Cloud services for deployment, storage, and monitoring

  • Set up and maintain monitoring and logging tools such as PrometheusGrafanaELK Stack, and Splunk

  • Write unit and integration tests using JUnitTestNGMockito, and WireMock

  • Work with messaging systems like Kafka, and integrate with external services via REST and SOAP

  • Implement secure authentication and authorization using OAuth2JWT, and Spring Security

  • Collaborate with cross-functional teams in an Agile/SCRUM environment

 


Required Skills & Qualifications:

 

  • Strong proficiency in Java (18+)Spring Boot, and microservices architecture

  • Experience with API development and documentation tools

  • Solid understanding of database designORMs, and query optimization

  • Hands-on experience with CI/CD toolscontainerization, and cloud platforms

  • Familiarity with monitoringlogging, and alerting systems

  • Knowledge of testing frameworks and mocking tools

  • Experience with messaging systems and integration protocols

  • Strong grasp of security best practices in web applications

  • Excellent problem-solving and communication skills

 

 

Preferred Qualifications:

 

  • Certifications in AzureJava, or Spring

  • Experience with Domain-Driven Design (DDD) and Event-Driven Architecture

  • Exposure to DevSecOps practices

Published: 29.08.2025
Office location
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