C++ Developer

Lisbon, Portugal
Senior (4-6 Years)
Hybrid
English Required Portuguese Required Not Accepting Candidates Living Abroad

Context

We are looking for an experienced C++ to work on the desktop products Medistar.

The codebase is a long-lived, mixed Qt estate built with CMake, Conan and MSVC, with several legacy components. The work centers on IT security and stability of the product.

Scope of Work

  • Develop and maintain C++ components for the desktop application, with priority on IT security and stability.
  • Based on existing security requirements, analyze the existing code, develop fixes for security issues and improve the security of the product.
  • Work with the Architecture, QA and Product Management teams to deliver secure, maintainable, high-quality solutions.
  • Use Al coding agents (for example, Claude Code) in daily work to speed up code analysis, fix issues, and contribute to the team's shared agents, skills and prompt templates.|

Must-Have Skills

  • Several years of senior C++ development, preferably in high-performance, heavily parallelized desktop systems.
  • Strong command of modern C++ (C++14/17/20), IT security, multithreading, and debugging.
  • Hands-on experience with CMake, Conan and MSVC
  • Structured, analytical working style with high quality standards.
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
At KWAN, I’m given the space to be myself and do what I love. I have control over the projects I work on, as well as the direction of my career.
Pedro Fonseca, Front End Developer @ KWAN
I see my People Experience Partner as someone who is always available to provide me with motivation and constant feedback, which helps me be sure that I am in the right place.
Josimar dos Reis, Software Developer @ KWAN
I know that I’ve contributed to the growth of a company that truly values a “people first culture”, because my ideas, experiences, and individuality were always appreciated.
João Nascimento, Software Developer (KWAN Alumni)
My two years at KWAN were an incredible experience! From the start, I was welcomed into a warm and collaborative environment where I felt truly supported.
Laís Ortiz, Software Developer @ (KWAN Alumni)
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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