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senior backend integration engineer - java

3 Ιουλ 2026 · Public Group

Κηφισιά·Υβριδική·Πληροφορική·Αορίστου·Πλήρης
ΚηφισιάΥβριδικήΠληροφορικήΑορίστουΠλήρης

Περιγραφή Θέσης

We are looking for an experienced Integration Engineer (Middleware) to design, develop, and support enterprise integration solutions across the Public Group ecosystem. The ideal candidate will build and maintain scalable microservices and middleware components to ensure secure, reliable, and efficient data exchange between internal systems and external applications.

Responsibilities:

  • Design, develop, and maintain middleware solutions and microservices to enable seamless integration between Public Group systems and third-party applications.

  • Participate in the full system integration lifecycle, including requirements analysis, solution design, development, testing, deployment, and ongoing support.

  • Develop and manage APIs, message queues, and event-driven services to ensure reliable and secure data exchange across platforms.

  • Collaborate closely with Public Group business and technical teams to gather integration requirements and translate them into scalable technical solutions.

  • Monitor, troubleshoot, and optimize integration workflows to ensure high availability, performance, and data integrity.

  • Contribute to architecture discussions and promote best practices in microservices, DevOps, and integration standards.

Requirements:

  • 5+ years of related experience, experience in integration projects

  • University degree in Computer Science, Engineering, or related scientific field preferred

  • Experience with Java 8/11/17+ and Spring Boot Framework

  • Good knowledge of Architecture and Design principles and their applications

  • Experience with SQL Databases

  • Familiar with NoSQL Databases

  • Should have strong exposure of hibernate, JPA, J2EE, SQL or NoSQL queries

  • Familiar integrating with Rest API's and WebServices

  • Perform code reviews to ensure code quality and adherence to coding standards

  • Experience with GIT for version control and code collaboration

  • Capable of problem identification and resolution

  • Experience in solving technical issues with thorough research and investigation

  • Team work and great communication skills

  • Excellent command of the English language

Desirable Qualifications:

  • Familiar with Integration/Unit Testing

  • Knowledge of Openshift or Kubernetes

  • Familiar with MongoDB

  • Familiar with asynchronous communication using technologies such as ActiveMQ/RabbitMq

  • Passionate for good results, dynamic and enthusiastic

  • High sense of responsibility

  • Participation in Agile teams (Scrum or Kanban)

  • Experience with JIRA

What we offer:

  • 💼 Competitive compensation & benefits package

  • 💰 Performance-based bonus scheme

  • 🧑‍⚕️ Comprehensive life & health insurance

  • 🏡 Flexible hybrid working model – to support your work-life balance

  • 🧡 Psychological support via a professional helpline for you and your family

  • 🚀 Career growth opportunities in a role that evolves with you

  • 🎉 Valuable experience in a well-known and fast-growing organization

  • 📚 Continuous learning and upskilling through tailored programs

  • 🏃🏽‍♂️ Employee Wellness Program – office Pilates & sports teams (padel, football, volleyball & more)

  • 🚗 Alternative transportation with company shuttle buses to our offices

  • 📲 Exclusive access to our employee app, OrangeGen, packed with tools, news & perks

Περιγραφή Εταιρείας

Public Group strategically invests to create an ecosystem of innovative scaleups around its Omnichannel Retail business, with the objective to provide exciting customer experiences and foster Entrepreneurship in Greece.

We bring together technology, talent & entrepreneurship to create value in the Greek market. We are advocates of Strategic Synergies, Bold Entrepreneurship & the Power of Human Will.

Our role is to help our subsidiaries or investee companies grow and their founders to succeed through capital and creative synergies.

We also aspire to play a positive role in promoting Greek-based entrepreneurship, as well as provide an environment for talent development

Περιγραφή Εταιρείας

Public Group strategically invests to create an ecosystem of innovative scaleups around its Omnichannel Retail business, with the objective to provide exciting customer experiences and foster Entrepreneurship in Greece.

We bring together technology, talent & entrepreneurship to create value in the Greek market. We are advocates of Strategic Synergies, Bold Entrepreneurship & the Power of Human Will.

Our role is to help our subsidiaries or investee companies grow and their founders to succeed through capital and creative synergies.

We also aspire to play a positive role in promoting Greek-based entrepreneurship, as well as provide an environment for talent development