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We are seeking motivated and talented professionals to join our highly skilled teams. As a Senior Back End Developer at Q&amp;R S.A., you will be responsible for designing, developing, and maintaining high-quality backend services for large-scale enterprise projects. You will collaborate with cross-functional teams (e.g., Front-End, BA-QA) and leverage modern development practices such as AI-driven automation to streamline workflows, enhance code quality, and deliver robust solutions efficiently.Key Responsibilities:<ul><li>Architect, develop, and maintain Java-based services using Spring Boot and related frameworks.</li><li>Implement scalable and modular solutions, including reusable libraries/modules for various business needs</li><li>Write clean, efficient, and secure code following best practices and organizational standards.</li><li>Enforce peer code reviews and pull request checks to ensure clean, maintainable, and secure code</li><li>Integrate with tools (e.g., SonarCube) for continuous code quality checks, monitoring technical debt, and identifying vulnerabilities</li><li>Collaborate on effective database strategies (e.g., Oracle, Postgres) for query optimization</li><li>Use database-specific analysis tools to refine queries, create indices, and ensure high performance</li><li>Manage schema changes following best practices to minimize downtime and maintain data integrity</li><li>Leverage AI tools to automate repetitive tasks (e.g., code generation, technical documentation)</li><li>Contribute to a growing knowledge base (e.g., Confluence), applying best practices where relevant</li><li>Implement unit tests (e.g., JUnit, Mockito) for critical workflows, adhering to TDD principles</li><li>Ensure smooth integration of automated tests in CI/CD pipelines to detect and resolve issues early</li><li>Support Front-End developers interested in expanding to Back-End skills, providing guidance and mentorship</li><li>Participate in daily stand-ups, retrospectives, and knowledge-sharing sessions to foster a collaborative environment</li><li>Coordinate product releases with internal teams, ensuring alignment with security and compliance standards</li><li>Troubleshoot and resolve technical issues promptly to maintain high system reliability</li></ul>Required Qualifications:<ul><li>Bachelors degree in Computer Science or a related field (or equivalent professional experience)</li><li>7+ years of work experience in backend development with Java (11, 17+) and Spring Boot (including Spring Data, Spring Security), SQL (Oracle or Postgres) with proven query optimization and indexing techniques, ORM frameworks (JPA/Hibernate), Testing frameworks (JUnit, Mockito), Build Tools (e.g., Maven) and Version Control (Git), Object-Oriented Design, Design Patterns, and robust API design</li></ul>Desired Qualifications:<ul><li>Masters degree in Computer Science or a related field</li><li>Familiarity with Azure, AWS, or Google Cloud for scalable application deployment</li><li>Experience with Kafka, RabbitMQ, or similar technologies</li><li>Understanding of securing deployments, endpoint security, and ACMS</li><li>Exposure to AI-driven documentation or code generation tools</li><li>Agile or Scrum for iterative development</li><li>Exposure to TRIZ for structured problem-solving</li><li>Basic familiarity with ReactJS (or other frameworks) is a plus for broader collaboration</li><li>Knowledge of Jenkins, Bitbucket Pipelines, or similar automation pipelines</li></ul>Personal Attributes:<ul><li>Analytical Mindset: Strong problem-solving abilities and attention to detail</li><li>Team Player: Excellent communication and collaboration skills, including mentoring junior developers</li><li>Proactive &amp; Organized: Ability to prioritize tasks and execute effectively under deadlines</li><li>Adaptability: Willingness to explore new technologies and approaches that improve overall project outcomes</li><li>Continuous Learner: Eagerness to leverage courses and certifications (including AI/LLM-focused) for professional growth</li></ul>What is there for you<ul><li>We want our people to be well compensated, so we offer an attractive salary package</li><li>Health is the most important asset, so we have you secured with a health insurance and compilation plan from day one</li><li>We are excited for challenges, so you are invited to take part in exciting, innovative projects that make a difference</li><li>We never stop learning and evolving! We encourage our people to follow the pace by providing them voucher for Training Courses, so that they adapt new tech skills and develop their soft skills</li><li>Most important, we work as a team, so we gather on a smaller and bigger occasions to celebrate good times together! Happy Fridays, bowling sessions, running events and everything that help us have fun and enjoy working to our team</li></ul>

Senior Backend Developer [BET_06]

We are currently looking for an experienced Oracle Database SQL/PLSQL Specialist. We are looking for a Database Developer for Oracle database centric&nbsp;applications. As a member of the Development team, you will participate end to end&nbsp;in the Software Development Life Cycle of our products.﻿﻿﻿Tasks and assignments will include:<ul><li>Analyzing user / customer requirements</li><li>Participating in software modules / components design</li><li>Developing applications using Oracle SQL &amp; PL/SQL</li><li>Serving as the support developer for application requirements</li><li>Tracking defects as they occur</li><li>Maintaining a high level of security and code re-usability</li><li>Contributing to the overall project and system documentation and developing&nbsp;technical documentation</li></ul>Education:<ul><li>Bachelors degree in Computer Science / Information Technology/ Engineering&nbsp;or science degree</li></ul>﻿Desired skills:<ul><li>Experience in developing software with Oracle Forms / Oracle Reports</li><li>Experience in ERP systems (including myDATA), HRMS-Payroll systems</li><li>Experience in developing with Jasper Reports</li><li>Experience in Oracle Business Intelligence EE and Oracle BI Publisher will be&nbsp;considered an asset</li></ul>﻿Fitting with our team will be easier if you are:<ul><li>A strong team player with the ability to work autonomously as well</li><li>A good communicator fluent in both Greek and English</li><li>An analytical thinker with problem solving skills</li><li>Eager to learn and adopt new technologies</li><li>Passionate to contribute and share new ideas﻿</li></ul>What is there for you<ul><li>We want our people to be well compensated, so we offer an attractive salary package</li><li>Health is the most important asset, so we have you secured with a health insurance and compilation plan from day one</li><li>We are excited for challenges, so you are invited to take part in exciting, innovative projects that make a difference</li><li>We never stop learning and evolving! We encourage our people to follow the pace by providing them voucher for Training Courses, so that they adapt new tech skills and develop their soft skills</li><li>Most important, we work as a team, so we gather on a smaller and bigger occasions to celebrate good times together! Happy Fridays, bowling sessions, running events and everything that help us have fun and enjoy working to our team</li></ul>This is an excellent opportunity for a motivated professional to join a growing organization and make a positive impact on our business. If you are interested in this position, please apply now!

Oracle PLSQL Specialist

We are looking for inspired professionals that will be part of highly skilled teams who design, develop, deploy, and support complex Information Systems for our customers. The job holders will have the opportunity to be exposed to a wide variety of technologies to develop a solid background in the field of applications development.Required skills: <ul><li>Bachelor degree in Computer Science or another relevant field</li></ul>and 5+ experience in:<ul><li>Coding and knowledge of Java 8+</li><li>Knowledge/Experience on Spring Framework - Spring Boot, WebFlux, Spring Data, Spring Security</li><li>Knowledge/Experience with ORM - JPA / Hibernate</li><li>Knowledge of SQL, preferably Postgres, Oracle database (11g/12c) or MySQL</li><li>Experience with designing, building and testing Spring Boot applications</li><li>Experience with Testing Frameworks like JUnit, Mockito</li><li>Experience with Build Tools (ie Maven, Gradle)</li><li>Experience with Versioning tools (ie Git)﻿</li><li>Experience with Object-Oriented Design (OOD), Test-Driven Development (TDD) and design patterns﻿</li><li>Develop Spring Boot, Java EE applications</li><li>Write well-designed, efficient code</li><li>Review, test and debug team members' code</li><li>Document development phases</li><li>Ensure our applications are secure and up-to-date</li><li>Design (relational) database architecture</li><li>Schedule product releases with internal teams</li><li>Identify and analyze user requirements</li><li>Analyze and resolve technical and application problems﻿</li><li>Prioritize, assign and execute tasks throughout the software development life cycle</li></ul>Desired skills:<ul><li>M.Sc on Computer Science or relevant field is a plus.</li><li>Knowledge of JEE Frameworks, such as Faces, Oracle ADF﻿</li><li>Knowledge of Front End Frameworks such as ReactJS is a plus.</li><li>Knowledge of GraphQL</li><li>Experience with Microservices, Spring Cloud</li><li>Experience with Kubernetes, Docker</li><li>Knowledge of XML, XSD / XML Schema</li><li>Development methodologies such as RUP or Agile</li><li>Experience with JEE application servers (ie JBoss, Glassfish, Tomcat, Weblogic)</li><li>Experience with CI/CD tools (ie Jenkins, Bitbucket pipelines)</li><li>Experience with Messaging Middleware (Apache ActiveMQ, Rabbit MQ, Kafka)</li><li>Previous experience in Public Sector Projects is a strong asset.﻿</li></ul>You are/have:<ul><li>Strong skills in teamwork, communication, analytical thinking and problem solving</li><li>Ability to work both independently and in a team</li><li>Strong communication and interpersonal skills</li><li>Organized and methodical</li><li>Good delegation and time management skills﻿</li></ul> Package DetailsWhat is there for you<ul><li>We want our people to be well compensated, so we offer an attractive salary package</li></ul><ul><li>Health is the most important asset, so we have you secured with a health insurance and compilation plan from day one.</li></ul><ul><li>We are excited for challenges, so you are invited to take part in exciting, innovative projects that make a difference.</li></ul><ul><li>We never stop learning and evolving! We encourage our people to follow the pace by providing them voucher for Training Courses, so that they adapt new tech skills and develop their soft skills.</li></ul><ul><li>Most important, we work as a team, so we gather on a smaller and bigger occasions to celebrate good times together! Happy Fridays, bowling sessions, running events and everything that help us have fun and enjoy working to our team.</li></ul>

Senior JAVA Developer [CST_06]

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senior backend developer [bet_06]

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