Junior Research Scientist

Lisbon, Portugal
R&D – AI Research
Unbabel’s “Translation as a Service” platform allows modern enterprises to understand and be understood by their customers in dozens of languages.

Powered by AI and refined by a global community of tens of thousands of human linguists, Unbabel delivers professional-grade content at the scale required by modern enterprises like Pinterest, Skyscanner, Under Armour and Rovio.

Backed by Scale Venture Partners, Notion, Microsoft Ventures, Salesforce Ventures, Samsung NEXT and Y Combinator, Unbabel is accelerating the shift to a world without language barriers.

We are a diverse team, working everyday to build an outstanding organisational culture, based on strong values of transparency, team spirit and continuous learning, with a fast paced Silicon Valley atmosphere in the beautiful city of Lisbon, Portugal.

We are looking for a Junior Research Scientist to conduct the research that will power the next generation of products at Unbabel.
This is a great opportunity to focus and see the impact of AI in a real business case.


    • Advance the state-of-the-art in Machine Translation, Quality Estimation, and Natural Language Processing
    • Play an active role in NLP and ML research communities
    • Participate in joint projects with academic partners
    • Coordinate with other Unbabel teams to understand key challenges across the business and where research can bring value


    • Master’s degree in Computer Science, Computer Engineering or related field
    • 1+ years of experience with Machine Learning and Artificial Intelligence techniques and tools
    • 1+ years of experience programming with Python, Java, OR C++
    • Demonstrated ability in the application of Machine Learning/AI in real-world settings
    • Experience with Deep Learning frameworks such as TensorFlow, DyNet, PyTorch, or Marian
    • Have a critical mindset to judge different approaches and evaluate potential research problems
    • Be goal-oriented and capable of breaking research problems into milestones


    • Competitive salary at one of Europe’s leading startups
    • Stimulating startup environment committed to diversity and inclusion
    • Individual budget for training and conferences
    • Individual budget to setup your own workstation (mechanical keyboard, mouse, etc.)
    • Relocation Package
    • Stock options
    • Health Insurance
    • MacBook Pro and external monitor
    • English or Portuguese language courses
    • Surf trips every Wednesday morning before work
    • Team lunch every Tuesday
    • Drinks and snacks every Friday
    • All-hands trip to the beach once a quarter
    • Yearly company retreat