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Staff QA Engineer

BUX

BUX

Quality Assurance
Amsterdam, Netherlands
Posted on Dec 10, 2025
Engineering · Amsterdam · Hybrid

Staff QA Engineer

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We are looking for a Staff QA Engineer to join our BUX team based in Amsterdam.


Our engineering team sits at the heart of the company. We have a well-rounded team that cares about building great products that matter. You’ll be part of a modern fintech company where you can try things, break things, fix them, and learn fast. Your work is visible, your input matters, and you help shape both the product and how we build it. We stay close to what’s happening in the world of investing and fintech, and we share what we learn. It’s a place where you can stretch your skills, contribute to something real, and grow alongside people who take their craft seriously and enjoy building things together.

What you will do

In a fintech environment, quality is not just about catching bugs; it's about ensuring financial accuracy, maintaining regulatory compliance, and safeguarding our users' trust. You'll have the opportunity to shape our QA strategy, implement modern testing frameworks, and drive continuous improvement across our engineering organisation.

As a Staff QA Engineer, you will lead technical topics. This could mean:

  • Providing technical and professional guidance to teammates in the area of testing

  • Develop and implement comprehensive test strategies for manual and automated testing across web, mobile, and backend services

  • Collaborate with product owners, developers, and stakeholders to define quality standards and acceptance criteria

  • Build and maintain automated test frameworks integrated with CI/CD pipelines for continuous quality assurance

  • Use Generative AI tooling to facilitate and extend the testing process, automate various testing scenarios and increase the testing coverage, while helping educate the rest of the team on how to take advantage of these tools

  • Define, write and maintain guides on how to test common scenarios, or how to quickly get the product in a state where a certain test can be done

  • Drive the adoption of best practices in test automation, performance testing, and security testing

  • Track and report on quality metrics, test coverage, and defect trends to stakeholders.

  • Champion a quality-first culture throughout the engineering organisation

  • Own, lead and organise regular Bug-bash meetings, where the whole team tests the latest version of our product

  • Acquire and document product knowledge, which is the foundation for being the first line of contact for our CS teams

  • Work together with the Product Owner in the team to create bug tickets and define the priority of already known issues

  • Contribute to sprint refinement meetings, or Product requirement documents, by defining the testing scenarios for new initiatives

  • Be the first line of verification of a new app release candidate (demo build)

Our tech stack

Java, Kotlin, Spring Boot, GCP, Kubernetes, GitHub Actions, TestNG/JUnit, REST APIs, WebSockets, Kafka, CloudSQL, PostgreSQL, MySQL, Cassandra, Elasticsearch

What you need to succeed

We are looking for you if you are passionate about quality, you have strong leadership skills, and you thrive in a fast-paced fintech environment. Furthermore, we require:

  • 10+ years of experience in software quality assurance, with at least 2 years in a lead role

  • Proven experience building and leading the QA process, while driving quality initiatives across the organisation

  • Strong expertise in test automation frameworks and tools (e.g., Selenium, Appium, REST Assured).

  • Proficiency in at least one programming language (Java, Kotlin, Python, Javascript)

  • Deep understanding of the software development lifecycle, Agile methodologies, and CI/CD practices

  • Experience with testing in highly regulated industries, particularly fintech or financial services

  • Strong knowledge of performance testing, security testing, and API testing methodologies

  • Excellent problem-solving skills with keen attention to detail and analytical thinking

Nice to have

  • Experience with cloud platforms, particularly GCP

  • Knowledge of financial regulations and compliance standards (KYC)

  • Experience with mobile app testing (iOS/Android)

  • Familiarity with event-driven and event sourcing architectures

  • Experience with containerization and testing in Kubernetes environments

  • Certifications such as ISTQB, CSTE, or similar quality assurance credentials

  • A DevOps mindset with experience in infrastructure-as-code and test environment management

Why join BUX as a Staff QA Engineer?

  • You will shape the quality strategy for a high-growth fintech company

  • You will work with modern technologies and have the freedom to introduce new tools and practices

  • You'll collaborate with intelligent, passionate peers who value quality and continuous improvement

  • You'll be part of a company that values your ideas and encourages innovation at every level

  • You will help build products that democratize investing and make a real difference in people's financial lives

How we hire

To learn more about our approach to hiring and how to prepare for your interviews, check out our How we hire section.

Adjustments for the hiring process

We want you to feel empowered to show your best self during the application process. If there's anything we can do to accommodate you better (interview timing, place, etc), please let us know in your application form.

Our benefits

  • International work environment

  • Company pension plan

  • Flexibility is at our core; we offer a hybrid work environment (1-2 days at the office)

  • Working from home allowance

  • Mobility benefit

  • Gym membership contribution via Urban Sports

  • Learning budget and full access to our learning and development platform

  • A1 Dutch language course for you (and your partner)

  • Delicious lunches at the office

  • The possibility to work from abroad for 1 month every 12 months

  • Take care of your mental and emotional well-being with unlimited appointments with psychologists or coaches through OpenUp

  • Regular team gatherings and fun company events

BUX for everyone

At BUX, we’re committed to making investing accessible and affordable for everyone through our intuitive app. We believe that a diverse team with a range of backgrounds, skills, and perspectives is key to achieving this mission. By embracing diversity, we strengthen our ability to innovate and serve our customers better.

To fully benefit from our diversity, it’s essential that everyone feels safe, included, and valued. We are dedicated to creating a workplace where each of us can bring our full selves to work and contribute to our shared goals.

Department
Engineering
Locations
Amsterdam
Remote status
Hybrid
Employment type
Full-time
Contact Georgiana Luncanu Senior Talent Partner & People Projects – People

Amsterdam

Engineering · Amsterdam · Hybrid

Staff QA Engineer

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