Software Engineer Tester (Backend)

Braga, Portugal; Lisbon, Portugal; Coimbra, Portugal
Mid-level (2-3 Years)
Hybrid
No Relocation Package Available Must be based in Lisbon English Required

We are looking for an Software Engineer Tester in Lisbon, Coimbra or Braga who's eager to embark on an exciting new opportunity!

What is this challenge about:

  • Communicate and implement test approaches and strategies for APIs.
  • Understand requirements and raise relevant questions to clarify scope and functionality.
  • Contribute to automated test frameworks to verify functional and non-functional requirements.
  • Collaborate with team members to ensure delivery of products according to specifications.
  • Troubleshoot, identify critical bugs, verify reported issues, and determine their root causes.
  • Communicate status, progress, and issues to a variety of stakeholders.
  • Follow and promote QA best practices within the team.
  • Write test approaches for functional testing and exploratory test charters, reporting outcomes clearly.
  • Participate in agile team activities, including sprint planning, estimation, and prioritization.
  • +2 years of professional professional experience in API testing, both manual and automated.
  • Strong experience developing automated acceptance tests for APIs using TypeScript (primary) and Java (for legacy systems).
  • Experience with BDD and Gherkin techniques for test specification.
  • Proficiency with GitHub or similar version control tools.
  • Experience working collaboratively in Agile Scrum teams.
  • Experience in automation code refactoring.
  • CI/CD experience deploying builds (AWS CodePipeline, GitHub Actions; Jenkins knowledge is a plus).
  • Experience with AWS services and tools (S3, EC2, Lambda, CloudWatch, etc.).
  • Proficiency using API testing tools such as Postman, Bruno, Insomnia, or similar.
  • Strong verbal and written communication skills for reporting, documentation, and stakeholder interactions.
  • Ability to plan, estimate, and manage time effectively within an agile team.
  • Living in Braga, Coimbra or Lisbon (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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Tell Us About You

We review every application. If there’s alignment, we won’t let it get lost in a database.