Senior AI Engineer

Sorry, this job was removed at 04:09 p.m. (CST) on Wednesday, Nov 26, 2025
Be an Early Applicant
Porto
In-Office
Artificial Intelligence • Information Technology • Software • Consulting • Cybersecurity • Automation
Grateful for the past, committed to the future. Changing the way the 🌎 uses technology for over 25 years.
The Role

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. 

We are now seeking a talented and experienced AI Developer to join our dynamic team. The ideal candidate will have a strong background in machine learning, data analysis, and AI model development. You will work closely with our data scientists, software engineers, and product managers to design, develop, and deploy cutting-edge AI solutions. 

In this role, you will be supported by a dedicated team based in Germany and Portugal, equipped to aid your success and bolster our rapid growth. At Critical we deliver software solutions and consulting in complex, business critical environments aimed at assisting our clients in achieving their business objectives through cutting-edge software solutions. 
What do we expect from you? 

  • Design and implement machine learning algorithms and models, focusing on areas such as NLP and predictive analytics. 
  • Collaborate with cross-functional teams to integrate AI solutions into existing software products. 
  • Develop and deploy end-to-end AI solutions, from data collection and preprocessing to model deployment and monitoring. 
  • Conduct code reviews, testing, and debugging to ensure the quality of AI solutions. 
  • Work with large datasets, including data cleaning, feature engineering, and transforming unstructured data into usable formats. 
  • Stay up-to-date with the latest advancements in AI/ML technologies, frameworks, and tools. 

    What makes you a good candidate for this role? 

    • Education: Academic background in Engineering, Data Science, STEM areas or relevant, equivalent professional experience. 
    • Experience: 5+ years of proven experience as an AI Engineer or similar role. Demonstrable experience in artificial intelligence, machine learning and data analytics projects. 
    • Technical Skills: Proficiency in Java, Python, SQL, R, TensorFlow, PyTorch, and other AI frameworks. Strong understanding of machine learning, deep learning, natural language processing (NLP). 
    • Communication: Excellent verbal and written communication skills. 
    • Language Skills: Fluent in 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.
      By applying to a position at Critical Software, you are deemed to have accepted our Privacy Policy.

      Similar Jobs

      In-Office
      Mindelo, Vila do Conde, Porto, PRT
      5037 Employees
      6-6 Annually

      Workato Logo Workato

      Infrastructure Engineer

      Cloud • Enterprise Web • Information Technology • Productivity • Software
      Easy Apply
      In-Office
      2 Locations
      650 Employees
      In-Office
      Porto, PRT
      1661 Employees
      50K-120K Annually
      In-Office
      Porto, PRT
      2427 Employees
      Get Personalized Job Insights.
      Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

      The Company
      HQ: Coimbra
      1,408 Employees
      Year Founded: 1998

      What We Do

      At Critical Software, we believe our people are the core of who we are. Their talent, diversity, and ability to go beyond expectations shape everything we do.

      Working at Critical is about being part of a community built on purpose, values, and collaboration. Our commitment to engineering excellence makes us a trusted partner for some of the world’s leading companies in Aerospace, Railway, Medical Systems, Energy, Finance, and many more.

      We believe that technology is nothing without a passion to use it for good. That’s why we engineer change, helping to build a better and safer world through trusted and transformative technologies.

      Since 1998, we’ve helped companies in global industries like aerospace, transport, energy, healthcare and finance. Across the world, people and organisations depend on what we do. And we like that. Because it means that technology isn’t just our business. It’s our chance to help change the world.

      More than a company, we are a community. Our togetherness, culture and values are the foundations of who we are and what we do. We are proud to hold Benefit Corporation status, reflecting our commitment to sustainability, transparency, and business for good. We’re also one of only a few tech companies in the world to have both our waterfall and agile software development processes rated at CMMI® Level 5.

      Just as important as our technical expertise is our strong company culture, which guides us in everything we do. We’re recruiting for all of our locations right now and, if you’d like to find out more, please take a look at the careers section of our website.

      Similar Companies Hiring

      PRIMA Thumbnail
      Travel • Software • Marketing Tech • Hospitality • eCommerce
      US
      15 Employees
      Scotch Thumbnail
      Software • Retail • Payments • Fintech • eCommerce • Artificial Intelligence • Analytics
      US
      25 Employees
      Idler Thumbnail
      Artificial Intelligence
      San Francisco, California
      6 Employees

      Sign up now Access later

      Create Free Account

      Please log in or sign up to report this job.

      Create Free Account