QA Automation Engineer (Payments)

Introducing Masabi

// At Masabi, we’re driving the fare payment revolution, powering the journeys of millions all over the world. We build fare collection platforms that allow riders to seamlessly buy and present tickets for public transport either on their mobile phones, from a ticket machine, or even by tapping their bank card to travel. 

Our Justride platform is used in over 250 locations globally, including some of the largest cities in the world. With our industry-first mobile ticketing SDK, we’ve partnered with large players in the transport space, including Uber, Moovit and Transit. 

Your own journey is important to us too. Choosing a role here means joining a network of innovators from all walks of life; a group of passionate individuals who consistently deliver. Here, you’ll find the tools you need to build the career you want. Whether you’re taking the direct route or trying a new path, we’ll support you no matter what. 

The Role

// As part of our continued growth into new regions, we are building new functionality and onboarding customers and partners at an ever-increasing rate.

We’re looking for an experienced payments-focused QA Automation Engineer to join our QA and engineering team. You’ll take the lead in testing, validating, and automating critical payment systems, including contactless EMV Transit, e-commerce flows, and Payment Service Provider (PSP) integrations.

This is a key role ensuring the integrity, reliability, and compliance of our end-to-end payment ecosystem. You’ll embed testing early in the development lifecycle, champion shift-left practices, and work closely with engineers and product teams to prevent defects, reduce risk, and accelerate delivery.

Location

// This role is only available to candidates based in Poland.

Responsibilities

• Create, review, and continuously improve test strategies and cases that align with customer requirements and end-to-end testing plans, including translating business needs into scenarios for effective behaviour-driven testing
• Develop and maintain automated test frameworks for payments and PSP integrations, using Java or Kotlin
• Perform manual and automated end-to-end testing across EMV, eCommerce, APIs, terminals, processors, and reports, ensuring transaction accuracy and robust data handling across PSPs
• Expand test coverage for complex payment interactions, including edge cases like network failures, declines, and partial settlements
• Translate payment features and regulatory requirements (e.g. PCI-DSS, PSD2, SCA) into executable test cases in collaboration with product and engineering teams
• Validate payment integrations, message formats ( JSON, XML), and terminal configurations across gateways and processors
• Utilise Kafka to monitor and validate event-driven payment messages across producers and consumers
• Integrate automated tests into CI/CD pipelines, enabling continuous validation of payment flows during deployment cycles
• Contribute to the continuous improvement of QA practices, test environments, and automation frameworks
• Participate in incident triage and post-production validation of payment issues to ensure root cause analysis and quality resolution

About You

• Proficient in Java or Kotlin, with experience building and maintaining test automation frameworks for financial or payment systems
• Strong experience with manual and automated testing of distributed systems involving multiple payment channels
• Skilled in API testing using Postman or similar tools, and confident in debugging payment flows using browser and network tools
• Solid understanding of EMV and e-commerce transactions, including PSP integrations (e.g. Adyen, Stripe, Worldpay)
• Familiar with payment message formats and transaction flows, authorisation, clearing, settlement, and error handling
• Comfortable working with Kafka to monitor and validate event-driven payment messages
• Strong understanding of CI/CD pipelines and test automation integration, with a test-first mindset (BDD/TDD) applied in payment-related development
• Self-motivated, analytical, and capable of working independently in complex, cross-functional environments

Nice To Have

• Istqb Certification

• Experience with performance and load testing
• Familiarity with AWS services
• Knowledge of agile methodologies like SCRUM and KANBAN

Careers at Masabi are for people going places - driven by a mission to make transit fair and accessible for all.

We are a network of innovators from all walks of life, passionate about making a difference. At Masabi, we operate with openness and trust, creating an environment where everyone feels empowered to bring their whole, authentic selves to work.

• Whoever you are, just be yourself.
• We welcome applications from underrepresented backgrounds and encourage you to share your pronouns at any stage. Together, we simplify journeys, remove barriers, and improve daily life for millions.

Why Join Masabi?

• Driven by Purpose – We believe in journeys made simple. The work isn’t always easy, but the best things never are.
• Encouraged to Accelerate – Masabi is going places and our people are in the driving seat. Whether you’re taking the direct route or exploring new paths, we support your journey.
• Advancing with Empathy – We put people first and foster a culture of learning, not blame. No matter your cargo, we share the load.

We’re already powering journeys - are you ready to join us?