Java Back-end Software Engineer (Mid-Senior) job opportunity at Qualco Group.

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Date2026-01-22T14:01:31.924Z bot
Qualco Group Java Back-end Software Engineer (Mid-Senior)
Experience: Highly Experienced
Pattern: full-time
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loacation Athens, Greece
loacation Athens....Greece

We are QUALCO, the technology arm of Qualco Group, with over 25 years of experience in delivering innovative solutions to the financial sector. We serve clients in over 30 countries, helping banks and other financial institutions manage credit and loans effectively while ensuring full regulatory compliance. Our advanced software leverages analytics, artificial intelligence, and digital technologies to support every stage of the credit and lending lifecycle, remaining at the forefront of fintech innovation.  We are looking for a talented Java Back-End Software Engineer to join our Digital Banking department. Reporting to the Management of the department, this role will undertake important responsibilities in the development of a new product of Qualco. Responsibilities The role will have the following duties: Participate in the code design and implementation activities of a complex distributed system; Write adaptation/integration code among internal or third-party components and a central event-oriented integration platform; Design, develop, test, expose, and consume APIs between individual components, including internal and third-party systems; Implement and execute automated tests (from unit to end-to-end, integration and performance); Cooperate with own team developers, as well as with developers, DevOps engineers, testers, etc. of adjacent, cooperating or external teams in everyday work, component interworking and testing, performance tuning and troubleshooting; Compose and maintain high-quality documentation accompanying the written code; Participate in Agile ceremonies for the design, development, and testing, as part of an agile team; Maintain a consistent and smooth cooperation of the overall hyper-team with the horizontal teams of Qualco, including Compliance, Risk, Business Continuity, and Information Security teams, ensuring conformance at all levels with existing Qualco policies, processes, and codes; Ensure that all activities and duties are carried out in full compliance with regulatory requirements and supporting the continued implementation of the Group Anti-Bribery and Corruption Policy.  A University degree (4+ years of studies) in Computer Science, Computer Engineering, Informatics, or related fields. A graduate-level degree in a related field will be considered a plus; At least 3-4 years of professional experience in back-end software engineering; Proven experience in designing, implementing and documenting REST/JSON (including knowledge of OpenAPI and related tooling) and REST/XML APIs, and adhering to REST best practices, as well as in consuming third-party REST APIs. Familiarity with GraphQL and gRPC, as well as experience with SOAP APIs will be considered a plus; Experience in at least 1 multi-component or distributed system that requires coordination and integration among various services and components; Solid knowledge of and hands-on expertise with Java (Java 21) and the Java ecosystem is required; proficiency in additional languages, such as C#/.Net, Rust, C++, Scala, Ruby, Go, Python) will be considered a plus; Experience with back-end programming concepts and techniques (persistence, ORMs, caching, pooling, elasticity, logging, asynchrony, resilience, synchronization, idempotency); Experience in writing and executing different types of tests (e.g., unit, integration, performance, end-to-end, smoke); Proven knowledge of git and adherence to best practices using Git repositories it is required; Fluency in Maven is a must; familiarity with other build frameworks (e.g., gradle) will be considered a plus; Experience with Docker (containers, compose, deployment) will be highly appreciated; Knowledge of and experience with CI/CD pipelines will be highly appreciated; Experience in frameworks for microservices-based development, like Spring Boot or Quarkus will be considered a plus; Developer-level experience with Kubernetes environments will be considered a plus; Ability to cooperate smoothly and efficiently within large teams of peers, using various technologies, having various statuses (employees/vendors/subcontractors), and spanning a wide range of skills and cultures; Attention to detail, a learning- and growth-oriented mentality, and a collaborative profile / high-EQ team spirit will be of major importance; Very Good oral and written English language skills.

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