Senior .NET Backend Developers job opportunity at Qualco Group.

Home Jobs In Greece Tag: Job Senior .NET Backend Developers position at Qualco Group


Date2026-02-05T16:09:25.471Z bot
Qualco Group Senior .NET Backend Developers
Experience: 5-years
Pattern: full-time
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loacation Athens, Greece
loacation Athens....Greece

At Quento Technologies S.A., the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic partnerships to support business growth. At Quento Technologies S.A., we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide. Our high-performing, dynamic, and collaborative environment fosters professional growth at every stage. Quento Technologies S.A. seeks a highly motivated and experienced Senior .NET Backend Developers to join a major Systemic Bank in Greece. This is a prime opportunity to contribute to the backbone of critical financial applications in a dynamic environment. Your responsibilities will entail: Spearheading the end-to-end design, development, and ongoing maintenance of core banking software; Actively participating across the full Software Development Life Cycle (SDLC), from concept to deployment; Creating comprehensive documentation for the design, implementation, and usage of the software systems; Developing test data and executing thorough testing protocols to ensure application accuracy and integrity; Proactively identifying, diagnosing, and resolving software defects and user-reported issues; Managing the seamless integration of banking applications with various third-party services; Working collaboratively within the IT team to guarantee the smooth and efficient operation of all systems; Ensuring 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. Bachelor’s degree in Computer Science, Information Technology, or a related discipline; Minimum of 5 years of professional experience in software development, with a strong focus on enterprise-level or banking systems; Deep understanding of banking operations, financial services, and the regulatory landscape; Exceptional problem-solving skills combined with meticulous attention to detail; Proven ability to architect and implement scalable, efficient, and robust solutions; Excellent communication and teamwork abilities, with a talent for effective collaboration; Adept at managing multiple priorities in a fast-paced and evolving environment. Essential Technical Expertise: Languages & Frameworks: Expertise in C# and the .NET ecosystem, including .NET Core, .NET Framework, and Entity Framework Core; API Development: Solid experience building performance-critical Web APIs using ASP.NET Core, adhering to RESTful principles; Database Skills: Advanced proficiency in SQL, including writing complex queries, stored procedures, and performance tuning on SQL Server. A strong foundation in database design, normalization, and indexing is required; Desktop & Web UI: Proficiency in developing user-friendly Windows Forms applications and experience with interactive web development using Blazor (including component-based architecture and state management); Development Environment: High proficiency with Visual Studio, Git, GitHub, and Azure DevOps for version control and CI/CD; Desirable Skills (Considered a Plus): Knowledge of DevExpress components; Experience with testing frameworks (xUnit, NUnit) and API testing tools like Postman; Familiarity with containerization technologies (Docker, Kubernetes).

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