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Extia

Portugal / Global

Senior Backend Developer (.NET)

Job Description

Senior Backend Developer (.NET)

Where: Porto

About the position

Within IT Global Markets, the Anti‑fraud IT team develops and maintains critical systems to monitor and control daily trading activities. Our applications are essential for ensuring compliance and identifying potential fraud and anomalies, combining advanced data processing with dynamic business rule implementation.

We are seeking a seasoned back‑end developer with a strong data analyst mindset and a proven track record in enhancing application robustness. This role is crucial to our team, requiring initiative and leadership to drive modernization efforts, including upgrading obsolete systems, implementing DevSecOps practices, and establishing comprehensive testing frameworks.

What you need

Strong proficiency in C#, .NET, and .NET Framework, with proven experience in designing and upgrading applications for robust architecture;

Strong proficiency in SQL: db architecture, complex stored procedures, views;

Experience in establishing automated testing frameworks;

Knowledge of RESTful APIs;

Knowledge in SOLID principles and design patterns;

Experience working with agile methods.

Nice to have

Proven experience in integrating and managing DevSecOps tools like CheckMarx, SonarQube;

Proficiency in Angular;

Knowledge and Experience working with IIS;

Experience with Azure DevOps, XL Deploy, XL Release.

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Business Development, Information Technology, and Finance

Industries

IT Services and IT Consulting

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