Martyna Hopek
@martynahopek
Senior software engineer building fintech platforms and payment experiences with modern web tech.
PolandWhat I'm looking for
I’m a Senior Software Engineer focused on fintech and payment products, with a strong drive to build from scratch and improve systems end-to-end. I designed and implemented system architecture used across multiple Shift4 products, and I enjoy working in collaborative teams where engineering and product align.
At Shift4, I developed a merchant payment management dashboard for monitoring and processing transactions, and I implemented payment integrations across payment gateways, alternative payment methods, and cryptocurrency payments. I build scalable, responsive user interfaces with React, Next.js, Redux, React Native, Tailwind CSS, SCSS, and Material UI, while partnering with backend services built with Java 17 and Node.js and deployed on AWS.
I also care deeply about engineering quality and team growth—I contributed to automated testing with Cypress, served as Deputy Team Leader for sprint planning and coordination, and facilitated communication between developers and product stakeholders. Previously, I led advertising-related development at the Schibsted Group, built React/TypeScript front-end features, supported Jest/Cypress testing, mentored interns, and organized knowledge sharing.
Experience
Work history, roles, and key accomplishments
Designed and implemented a system architecture used across multiple Shift4 products and delivered scalable, responsive front-end experiences. Built merchant payment dashboards and payment integrations, including support for alternative and cryptocurrency payment methods.
Led engineering work on advertising systems for newspapers across the Scandinavian Schibsted Group. Coordinated delivery and supported mentoring and onboarding within the development team.
Developed and maintained features for advertising platforms used by merchants within the Schibsted Group ecosystem. Contributed to automated testing and collaboration with product teams to deliver advertising solutions.
Built and maintained front-end features for advertising workflows using React and related tooling. Implemented automated testing and collaborated with backend services to support the platform’s functionality.
Software Engineer React
Statscore Live
Jun 2018 - Mar 2021 (2 years 9 months)
Developed front-end components for Statscore Live, a real-time sports application for football fans. Implemented GraphQL integrations, database query work, and unit/component tests to support application reliability.
Junior Front-end Developer
Quantoo
Jan 2016 - May 2018 (2 years 4 months)
Built responsive front-end applications using JavaScript and modern React patterns to support CMS development. Implemented flexible front-end architecture and contributed to supporting APIs.
Front-end Developer
Quantoo
Jan 2016 - May 2018 (2 years 4 months)
Designed and built highly responsive web-based user interfaces and supporting APIs for a CMS platform used by newspaper editors. Collaborated with designers and developers to improve front-end features.
Education
Degrees, certifications, and relevant coursework
University of Gdańsk
Computer Science
2016 - 2018
Studied Computer Science at the University of Gdańsk from 2016 to 2018.
Tech stack
Software and tools used professionally
Availability
Location
PolandAuthorized to work in
Portfolio
statscore.liveJob categories
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