Java Developer, Freelancer

Job not on LinkedIn

October 22

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Espeo Software

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Finance • Blockchain • SaaS

Espeo Software is a boutique consultancy specializing in Financial Technology, offering custom software development and technology consulting services. With an in-house team of experts, Espeo assists clients in designing solutions and product strategies to stay competitive in the finance industry. The company is a certified Hyperledger Fabric service provider, highlighting its expertise in blockchain technology. Espeo Software provides services in finance tech, blockchain development, and mobile app solutions, building a solid network of consulting partners in Finance & Banking globally.

51 - 200 employees

Founded 2008

💸 Finance

☁️ SaaS

📋 Description

• 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).