Internship Position

Checkmarx is the global leader in Application Security Testing, helping the world's largest enterprises find and fix code vulnerabilities before they become incidents. Our cloud-native platform, Checkmarx One, scans over a trillion lines of code per year and integrates natively into development workflows. With offices in more than 20 countries, including Braga, we are recognized as a Leader in the 2026 Gartner® Magic Quadrant™ for Software Supply Chain Security.

Day to day, you'll learn to analyse source code for vulnerabilities, apply security protocols, and contribute to technical reports that inform our clients' decisions. Along the way, you'll absorb modern development methodologies from Agile to Waterfall, and play an active part in a global team.

You will:

Analyse source code and identify security vulnerabilities in Web and mobile applications

Produce clear security reports that document analysis findings and communicate them to stakeholders

Tailor and configure Checkmarx products to meet specific customer requirements

Learn software security best practices and project management methodologies (Agile, Waterfall)

Integrate into an international team, building communication and professional relationship skills

We don't expect you to arrive as a security expert, that's what we're here to teach. What we look for is a solid technical foundation, genuine curiosity about Web and mobile applications, and the willingness to think critically about the code you write.

This internship is structured around your growth, not just our needs. Throughout the programme, you'll build a set of technical and professional skills that will position you as a developer who thinks critically about security.