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  • Senior Java Developer
    Java

    Senior Java Developer

    Warszawa
    Type of work
    Full-time
    Experience
    Senior
    Employment Type
    B2B, Permanent
    Operating mode
    Remote

    Tech stack

      Java

      advanced

      RESTful

      advanced

      Microservices

      advanced

      Spring Boot

      advanced

      SOAP

      advanced

      JMS

      advanced

      Kafka

      advanced

      RabbitMQ

      advanced

      Amazon AWS

      advanced

      Docker

      advanced

    Job description

    Online interview
    Friendly offer

    Key Responsibilities & Expertise

    • Design, develop, test, and maintain high-performance Java applications.
    • Develop RESTful APIs following industry best practices.
    • Collaborate with cross-functional teams to build scalable, reliable, and efficient software solutions.
    • Lead architectural discussions and ensure adherence to design principles, SOLID, and clean coding practices.
    • Implement unit tests, memory profiling, and performance optimizations to ensure code reliability.
    • Maintain and optimize databases (SQL RDBMS), ensuring query performance and data integrity.
    • Integrate messaging queuing systems (Kafka, RabbitMQ, SQS) into applications.
    • Leverage cloud technologies (AWS) including EC2, RDS, SNS, SQS, S3, EFS for scalable solutions.
    • Utilize Docker and Kubernetes for containerized application deployments.
    • Implement CI/CD pipelines using GitLab for continuous integration and deployment.
    • Investigate, debug, and resolve technical issues in enterprise applications.
    • Ensure application monitoring & logging using Prometheus and the ELK stack.

     

    Technical Skills & Experience

    • Expertise in Java (8 years+), Spring Boot, JAX, SOAP, and JMS for backend development.
    • Experience with both Monolithic and Microservices architectures.
    • Proficiency in Agile methodologies (Scrum, Kanban) and tools like JIRA and Confluence.
    • Strong database skills (SQL).
    • Fluent in English
    • Hands-on experience with full-stack development (Vue.js, Angular) – nice to have


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