Senior Software Engineer I, Frontend (Data and Reporting)

Design and build responsive, accessible reporting dashboards and data visualizations that help merchants make better business decisions.
Develop new report types and chart visualizations, expanding beyond tabular data into richer visual formats.
Improve and maintain existing reporting features, balancing new development with ongoing refinement.
Collaborate with product managers, designers, and engineers to define requirements and deliver polished experiences—and make sound UX decisions when design resources aren't available.
Work with backend engineers to integrate with Python APIs that power merchant reporting.
Conduct code reviews and establish frontend standards that elevate the quality of the codebase.
Mentor junior and mid-level engineers on frontend best practices and component architecture.

5+ years of professional frontend development experience.
Willing to come into our Kraków or Gdańsk office 2-3 times per week.
Strong proficiency in React, with experience building and maintaining complex component architectures.
Demonstrated experience with data visualization libraries (D3, Recharts, Victory, Chart.js, or similar) and translating data into clear, actionable visuals.
Track record of building responsive web applications that work well across devices.
Experience working with RESTful APIs and integrating frontend applications with backend services.
Solid understanding of modern frontend tooling, testing practices, and performance optimization.
Strong communication skills and the ability to collaborate effectively with cross-functional teams.
Comfort with ambiguity and the judgment to make good product decisions independently.

Experience building analytics dashboards or reporting interfaces.
Familiarity with Python or backend development concepts.
Background in the restaurant or hospitality technology sector.
Experience mentoring other engineers or leading frontend architecture decisions.

Competitive pay: 19 500 - 24 400 PLN net on B2B.
Training budget 3500 PLN gross per year.
Access to e-learning platforms (O’Reilly).
Fully paid private healthcare in LuxMed.
Access to the Worksmile platform with a monthly top-up.
Subsidized access to breakfast and lunch through the vending machine in Kraków office, and lunches in Gdańsk office once a week.
Group English classes with a native speaker.
New Macbook Pro, 4K monitors or whatever tools you need.
Flexible working hours.
New, modern, bright and comfortable office space in the city centre.
A lot of free parking spots around the office.
Access to the company’s library.
Great working atmosphere.
Chill out room with a PlayStation and games.
Free snacks and beverages in a kitchen.
Company parties and social activities.
Employee referral program.
Relocation Package within Poland.

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