Senior Back-End Developer - Anti-Fraud

Porto, Portugal
Senior (4-6 Years), Specialist (5+ Years)
Hybrid
Not Accepting Candidates Living Abroad Portuguese Required

We are looking for a Senior Back-End Developer - Anti-Fraud to work in Porto who's eager to embark on an exciting new opportunity!

What is this challenge about:

  • Modernize and upgrade existing applications;
  • Implement DevSecOps practices within Azure DevOps pipelines;
  • Establish comprehensive automated testing strategies;
  • Ensure data integrity through analysis and issue resolution;
  • Collaborate with the infrastructure team on upgrades and migrations;
  • Maintain clear documentation and effective communication with stakeholders.
  • Minimum of 9 years of professional experience;
  • Strong proficiency in C#, .NET, and .NET Framework;
  • Proficiency in SQL, including database architecture and complex stored procedures;
  • Experience establishing automated testing frameworks;
  • Knowledge of RESTful APIs;
  • Familiarity with SOLID principles and design patterns;
  • Experience working with Agile methodologies;
  • Minimum English level B2;
  • Experience integrating DevSecOps tools such as Checkmarx and SonarQube is a plus;
  • Proficiency in Angular is a plus;
  • Knowledge of IIS is a plus;
  • Experience with Azure DevOps, XL Deploy, and XL Release is a plus.

We connect IT professionals with projects that match their skills, professional experience, and goals, then we offer a career progression program, delivered by in-house specialists - our People Experience Partners - to guide them through our journey with us.

What we offer:

  • A project that matches your skills and ambitions, as well as your preferences for working policies and culture.
  • A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income.
  • An empowering and respectful work culture enriched with social and learning events.
  • A People Experience Partner specially assigned to you - your go-to career guide, responsible for supporting your growth, facilitating training, and ensuring your work-life balance at KWAN.

“At KWAN, they make sure that I feel comfortable with the client I’m working for and that what I’m doing aligns with my career aspirations.”
Luis Caldeira, DevOps @ KWAN
Grab this opportunity, apply now!

What You Can Expect as a KWANer

Respect isn’t optional here

You’re trusted to deliver and supported to speak up.

Dedicated People Experience Partner

Someone accountable for your growth, not your allocation.

Continuous learning, built in

Learning that keeps pace with the systems you build.

Recognition that’s visible

Your impact doesn’t go unnoticed. Through our Rocket Points System, we constantly recognize your contributions.

A culture you can feel

From movie and quiz nights to dinners and our annual summer gathering, we don’t just work together - we build real connections.

Flexible spaces to work your way

Remote-first, with physical hubs when you want connection.

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