Critical Software
C++ Software Engineer
Critical SoftwarePortugal21 hours ago
Full-timeEngineering, Information Technology
Building better and safer isn’t a slogan, but the way we show up in the world.

It’s how we make sure technology speaks not only in code, but with meaning: better technologies, better ways of working, and more inclusive communities.

We align with what matters for people and for the planet, actively nurturing it to be better and safer.

At the centre, it’s our people who power everything we do. It’s their talent, drive and different ways of thinking that keep us moving forward, pushing the limits of what’s possible.

Which Brings Us To You, The Person With

  • Academic background in Engineering or a related field (e.g., Software, Electronics, Physics, Mathematics, etc.);
  • Proven experience throughout the full software development lifecycle: from requirements gathering to design, implementation, testing, documentation, deployment, integration, and training;
  • At least 5 years of professional experience in software development, with strong proficiency in C++;
  • Knowledge of C and Rust is highly valued;
  • Solid practical experience with Qt/QML, especially for embedded application development;
  • Deep understanding of modern C++ standards, coding best practices, and software architecture design;
  • Experience with embedded systems is a plus;
  • Familiarity with performance analysis and memory profiling tools;
  • Demonstrated ability to take end-to-end ownership of complex systems—from design and prototyping to final optimization;
  • Strong skills in defining and communicating technical vision, aligned with project goals and capable of guiding and inspiring both peers and stakeholders;
  • A proactive and curious mindset, passionate about technology—enthusiastic about both sharing knowledge and learning from others
  • Good command of spoken and written English.

Critical Software Provides

  • Work that fits your life, not the other way around
  • Offices designed to make you feel like you belong
  • A team that knows how to work hard, but also how to have fun
  • Pay that makes you feel valued, plus performance-based rewards
  • Your growth is our priority: training, support, and opportunities!

Plus, Perks With Purpose

  • Private Health Insurance Because your health and peace of mind matters.
  • Employee Assistance Programme Confidential support for you and your household from mental health to legal or financial advice, we're here for whatever life throws your way.
  • Home Office Support Get what you need to work comfortably from home, without turning your living room into an ergonomic nightmare.
  • Extra Holidays The longer you’re with us, the more you get. Two extra days after your first year, and more as time goes on.
  • Extra Parental Leave Two additional months of fully paid leave for both parents — whether you're welcoming a child by birth or adoption.
  • Flex-time We don’t clock-watch. Work when it makes sense for you, as long as it works for your team and goals.
  • Gradual Return to Work Support Returning after a long break? We’ll help you ease back in with a plan that fits your pace and needs.
  • Away From Keyboard - Sabbatical programme Long-term employees can take time off to explore new ideas, projects or experiences and come back with fresh eyes and stories to tell.

Every day we embrace new missions across industries as diverse as aerospace, space, defence, transport, telecoms, government, energy, finance and healthcare.

Now, the real question is: are you ready to join us and help make the world a better and safer place?

Critical Software is proud to be a Benefit Corporation. A Benefit Corporation differs from a standard corporation (C-Corporation): It is a for-profit business entity, legally defined in the US and other jurisdictions, whose legally defined goals include the positive impact on society, workers, the community and the environment, in addition to profit.

We are an equal opportunity workplace and committed to allow candidates with disabilities or neurodevelopmental conditions to prove their competencies to their full potential. We are willing to move the barriers that may prevent you from demonstrating that you are the right candidate for this role, so please let us know if you need some adjustment in your recruitment process.

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