Espeo Software

Java Developer, Freelancer

Espeo Software

contract

Posted on:

Location Type: Remote

Location: Remote • 🇵🇱 Poland

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Salary

💰 PLN 125 - PLN 175 per hour

Job Level

Mid-LevelSenior

Tech Stack

DelphiDistributed SystemsGradleJavaJUnitMavenMockitoMySQL.NETOraclePostgresPrometheusSpringSpring BootSpringBoot

About the role

  • Rewrite existing system components from C++ to Java (primarily backend)
  • Understand and analyze existing C++ codebase to ensure accurate migration
  • Maintain high code quality and compliance with the established architecture
  • Collaborate closely with developers, analysts, testers, and the solution architect
  • Participate in daily stand-ups, code reviews, and other team ceremonies
  • Propose improvements to implementation and architecture when necessary

Requirements

  • 3+ years of professional experience in Java development
  • Strong knowledge of Java 8+ and the Spring ecosystem (Spring Boot, Spring Data, etc.)
  • Experience working with complex monolithic or distributed systems
  • Ability to read and analyze existing code in other technologies (e.g. C++, Delphi, .NET)
  • Solid understanding of relational databases (PostgreSQL, Oracle, MySQL, etc.)
  • Proficiency with Git and build tools (Maven or Gradle)
  • Commitment to clean code principles, refactoring, and code quality
  • Good communication and teamwork skills
  • Polish language - minimum C1 level
  • Nice to have: Experience with legacy system migrations
  • Knowledge of design patterns and microservice architecture
  • Familiarity with testing and monitoring tools (e.g. JUnit, Mockito, Prometheus).

Applicant Tracking System Keywords

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

Hard skills
JavaC++Spring BootSpring Datarelational databasesPostgreSQLOracleMySQLGitMaven
Soft skills
communicationteamworkcode qualityclean code principlesrefactoring
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