KWAN

KWAN is a 100% Portuguese company that is part of the Rupeal Group, dedicated to IT Staffing, consulting, and outsourcing. KWAN exists because a developer believed in a different way of recruiting: treating people with the respect they deserve. Our goal is to be your go-to place for career advice and help you reach your dream job.
About company

Scala AI Engineer

On-site

location Lisbon

date January 19, 2026

types Full-time

We are looking for a Scala AI Engineer to work in Lisbon who’s eager to embark on an exciting new opportunity!

Apply here

About KWAN

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 is this challenge about

- Collaborate with multidisciplinary teams to design, develop, maintain, and support AI-based solutions;

- Build and deploy solutions using Natural Language Processing (NLP), traditional statistical methods, and supervised and unsupervised learning algorithms;

- Contribute to improvements in search efficiency, content creation, customer experience, and data-driven product innovation;

- Design and implement scalable, production-ready AI services within microservices architectures;

- Develop and maintain APIs (RESTful, asynchronous, etc.) to expose AI capabilities;

- Work with multilingual data and understand challenges related to language diversity;

- Apply innovative AI techniques to solve real business problems;

- Stay up to date with the latest advancements in AI Engineering, proposing new approaches and technologies when relevant;

- Ensure high standards of code quality, performance, maintainability, and reliability.

Does it sound exciting? Apply here

What we are looking for

- Minimum experience:

- At least 3 years of experience as an Engineer;

- Or 5+ years of experience if the highest academic degree is a Bachelor’s degree;

- Strong proficiency in Scala (mandatory)

- Experience with PostgreSQL or other relational databases

- Experience developing content-based applications

- Strong knowledge of microservices architectures

- Solid understanding of AI techniques, including: Natural Language Processing (NLP), Classification, Clustering, Optimization, Deep Neural Networks,

- Good understanding of the mathematical foundations, as well as the strengths and limitations of AI techniques in real-world scenarios

- Knowledge of data structures, semantic extraction, and text representation in NLP contexts

- Ability to write clean, production-ready code

- Fluent in English.

Do you meet most of the position requirements? Then grab this opportunity and apply now!

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.

- A relocation package and visa sponsorship for all our international hires.

Some Words From Our Colleagues

“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!

Contacts and Address

earth Avenida Duque de Ávila, 46 - 3ºA 1050 - 083 Lisboa