Data Engineer (Lisbon or Porto)

Lisbon, Portugal; Porto, Portugal
Senior (4-6 Years)
Hybrid
English Required

What is this challenge about: - Design, develop, and maintain scalable end-to-end data pipelines (ETL/ELT) to ingest, process, and store large volumes of data from multiple sources.

  • Build and maintain robust data platforms, data lakes, and data warehouses on Google Cloud Platform (GCP).
  • Develop Python-based solutions for data transformation, orchestration, automation, and data quality validation.
  • Implement and maintain data models, schemas, and storage solutions to support business analytics and data-driven decision-making.
  • Integrate testing practices into the data engineering lifecycle, including UAT, QA activities, data validation, and release readiness assessments.
  • Ensure data reliability through monitoring, logging, alerting, and data quality controls.
  • Collaborate closely with Data Engineers, Data Scientists, Analysts, and Business Stakeholders to gather requirements and deliver effective data solutions.
  • Ensure compliance with data governance, security, privacy, and regulatory requirements, including access control, encryption, and IAM policies.
  • Produce and maintain technical documentation, data dictionaries, runbooks, and test plans.
  • Participate actively in Agile ceremonies, code reviews, and continuous improvement initiatives.
  • Stay up to date with emerging GCP services and promote cloud-native data engineering best practices.

What we are looking for: - Bachelor's degree in Computer Science, Engineering, Mathematics, or a related field, or equivalent practical experience;

  • +5 years of experience in Data Engineering roles;
  • Strong Python development skills, including software design principles, testing practices, packaging, and performance optimization;
  • Hands-on experience with Google Cloud Platform (GCP), particularly BigQuery, Cloud Storage, Dataflow / Apache Beam, Dataproc, Pub/Sub, Cloud Composer / Apache Airflow;
  • Strong SQL skills and practical experience designing and maintaining data warehouses, data lakes, and scalable data pipelines;
  • Solid understanding of ETL/ELT concepts, data modelling, and schema design, including star and snowflake schemas;
  • Experience with orchestration tools such as Airflow, Cloud Composer, or similar scheduling platforms;
  • Familiarity with CI/CD practices for data pipelines;
  • Experience using version control systems such as Git;
  • Exposure to testing methodologies, including UAT, QA testing, test planning, data validation, and test automation;
  • Ability to work effectively in cross-functional and Agile teams;
  • Living in Lisbon or Porto (hybrid role);
  • Fluent level of English.

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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