Senior Software Engineer Backend / Full Stack (Data and Reporting) About SpotOnWe’re not just building restaurant tech, we’re giving independent restaurants the tools to compete and win. From our award-winning point-of-sale to AI-powered profit tools, everything we do helps operators boost profit, work smarter, and keep their best people. And every solution is backed by real humans who actually give a sh*t about helping restaurants succeed.Named the #1 Restaurant POS by G2 (Fall 2025), based on ratings from real usersRated the top-rated point-of-sale (POS) for restaurants, bars, retail, and small businesses by Capterra usersAwarded Great Places to Work and Built In’s Best Workplaces for multiple years runningWe move fast, care hard, and fight for independent restaurant operators to do what they love, and love doing it. If you’re looking to make an impact with heart and hustle, SpotOn is the place for you.As a Senior Software Engineer — Backend / Full Stack on our Data and Reporting team, you’ll design, build, and own the systems and experiences that help restaurant operators understand their business. You’ll architect scalable backend services and APIs, work across the stack to deliver merchant-facing reporting features, and collaborate closely with product, design, and data teams. This role offers meaningful autonomy—your technical judgment will directly shape the product and the platform.On a daily basis you will:Design and build scalable RESTful APIs and backend services that power merchant-facing reporting and analytics features.Develop full-stack features end-to-end—from backend data models and APIs through to frontend components and data visualizations.Build and maintain responsive, accessible reporting dashboards and chart visualizations that help merchants make better business decisions.Collaborate with product managers, designers, and data engineers to define requirements and deliver polished, high-quality experiences.Contribute to system architecture decisions, including cloud infrastructure (AWS), containerization, and CI/CD pipeline improvements.Conduct code reviews, establish technical standards, and mentor junior and mid-level engineers on best practices.Implement monitoring, logging, and alerting solutions to ensure platform reliability and observability.What skill are we looking for?5+ years of professional backend or full-stack software engineering experienceStrong proficiency in Python; experience with Go and TypeScript or JavaScript is highly beneficial.Solid experience building and consuming RESTful APIs, with a strong understanding of API design best practices.Proficiency with React—comfortable building and maintaining complex component architectures and data-driven UIs.Experience with relational and NoSQL databases, especially PostgreSQL and MongoDB.Familiarity with cloud services, particularly AWS (IAM, S3, RDS, Lambda).Comfortable with containerization and orchestration tools such as Docker and Kubernetes.Strong experience with CI/CD pipelines and modern DevOps methodologies.Strong communication skills and the ability to collaborate effectively with cross-functional teams.Comfort with ambiguity and the judgment to make sound product and technical decisions independently.Perfect candidate also has:Experience with infrastructure as code (IaC) tools and best practices.Background or interest in data engineering concepts—familiarity with tools like ClickHouse, Kafka, Snowflake, or ETL pipelines is a plus.Knowledge of data observability and monitoring tools, including Grafana and OpenTelemetry.Experience building analytics dashboards or reporting interfaces.Experience in the restaurant or hospitality technology sector.Here’s a bit about what we have to offer: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.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. The controller of your personal data included in your job offer and others collected during the recruitment process is SpotOn Poland spółka z ograniczoną odpowiedzialnością with its registered office in Kraków, Aleja 29 listopada 20, 31-401 Kraków, e-mail address: poland-rodo@spoton.com. We will process your personal data for the purpose of current or, if you voluntarily agree, also future recruitment processes. More information about how we proccess your data, including the basis for processing and your rights in relation to the processing, can be found on our website: https://pl.spoton.com/privacy-and-cookies-policy.Administratorem podanych danych osobowych, w tym danych zawartych w dokumentach aplikacyjnych i zebranych w toku procesu rekrutacji, jest SpotOn Poland Sp. z o.o. z siedzibą w Krakowie (ul. Aleja 29 listopada 20, 31-401 Kraków; adres e-mail do kontaktu: poland-rodo@spoton.com. Dane osobowe będą przetwarzane w celu realizacji obecnych lub – jeżeli wyrazisz na to dobrowolną zgodę – także przyszłych procesów rekrutacji. Więcej informacji o tym, jak przetwarzamy Twoje dane, w tym także informacje o podstawach prawnych przetwarzania oraz o prawach przysługujących Ci w związku z przetwarzaniem danych, znajdziesz na stronie: https://pl.spoton.com/privacy-and-cookies-policy.We will never ask candidates to pay fees, purchase equipment, or share sensitive personal or financial information during the hiring process. All legitimate communication f