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Edvantis Logo Edvantis · IT - Software Development

Middle Software Engineer (Java / React)

Poland, Rzeszów · Job Posted June 15, 2026
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Job Description

We are looking for a skilled Middle Java Developer to join the team developing a cloud-native service orchestration platform (iPaaS). The product helps companies connect different systems and applications, automate workflows, and build API integrations using low-code tools, connectors, and distributed cloud services. Although the primary focus of the role is backend development, candidates are expected to have experience with TypeScript and React to be able to build complete features, covering both backend and front-end components when necessary. Candidate’s location – the EU.

Job Responsibility

  • Implement new product features, improvements, and extensions for existing functionality
  • Contribute to product modernization efforts
  • Develop and maintain backend services using Java, Spring, and related technologies
  • Write clean, maintainable, and well-tested code
  • Participate in production support activities
  • Troubleshoot and resolve complex technical issues in production environments
  • Collaborate with cross-functional teams (QA, DevOps, Product) throughout the development lifecycle

Requirements

  • Location within the EU
  • 3+ years of professional experience in Java development
  • 1+ years of commercial experience with TypeScript and React
  • Strong knowledge of Java (Java 17+)
  • Hands-on experience with Java Concurrency
  • Good understanding of design patterns and clean architecture principles
  • Experience with Spring, Servlet API
  • Good understanding of HTTP, REST
  • Good understanding of monolith and microservices architectures
  • Experience with relational databases (PostgreSQL, MySQL)
  • Basic experience with containerization (Docker)
  • Experience with Maven or Gradle
  • Sufficient Linux command-line skills to work on remote servers
  • Upper-intermediate level of English or higher and strong communication skills

Nice to have

  • Hands-on experience with messaging systems (AWS SQS, Kafka, RabbitMQ, ActiveMQ or similar)
  • Experience with Kubernetes
  • Experience with SOAP
  • Experience with XML, XPath, XQuery, XML Schema
  • Experience with cloud platforms (AWS, Azure, or GCP)
  • Experience with NoSQL databases (Redis)
  • Experience with Apache Camel
  • Experience with Grafana and Kibana
  • Experience with Helm

What we offer

  • Remote-first work model with flexible working hours (we provide all equipment)
  • Comfortable and fully equipped office in Rzeszów
  • Competitive compensation with regular performance reviews
  • 18 paid vacation days per year + all state holidays
  • 12 days of paid sick leave per year + extra paid leave for blood donation
  • Fixed monthly health & wellness compensation, applicable to: medical insurance
  • fitness and sports activities
  • Mental health program which includes free and confidential consultations with a psychologist
  • English, German, and Polish language courses
  • Corporate subscription to learning platforms, regular meetups and webinars
  • Friendly team that values accountability, innovation, teamwork, and customer satisfaction
  • Inclusive environment where everyone feels valued and treated equally. We proudly partner with VeteranHub to support Ukrainian veterans
  • We are committed to supporting Ukraine and actively participate in charity initiatives
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