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// 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_ // We’re looking for a Principal Engineer - Payments to join Masabi’s Architecture team, with a primary focus on our payments domain. This is a senior role for someone who combines strong technical judgement with deep payments experience. You’ll shape the technical direction of our payments platform while staying close enough to the detail to design, review and support meaningful technical work. Working across the engineering organisation, you’ll act as a senior technical leader within the payments domain: contributing to architecture, guiding complex decisions and helping teams build scalable, resilient systems that support millions of journeys worldwide. The role suits someone who can move between system-level thinking and implementation, who understands trade-offs, can navigate ambiguity and helps turn complex or loosely defined problems into clear, practical technical approaches. Location_ // This role is available in a fully remote model for candidates based in Romania // You bring a mix of strong technical expertise, sound judgement and real-world payments experience. Strong experience working on payment systems, including integrations with PSPs, gateways, EMV, contactless EMV, acquirers, etc. Good understanding of payment flows, transaction lifecycles and system design considerations Experience designing and evolving distributed systems and microservices architectures You’ve operated at Principal or Staff level, shaping technical direction across multiple teams or domains Strong judgement and the ability to balance short-term delivery with long-term architectural outcomes Comfortable navigating ambiguity and turning complex problems into clear, practical technical approaches Clear and thoughtful communicator, able to engage both technical and non-technical audiences Comfortable being hands-on where needed, while maintaining a focus on system-level impact You have strong experience with cloud platforms (AWS preferred) and modern infrastructure practices You’ve worked on systems where scale, reliability, performance and cost trade-offs matter, and can navigate those decisions thoughtfully You’ve contributed to engineering standards, architecture patterns or platform direction Interest in or exposure to AI-enabled systems, particularly understanding architectural implications in production