Senior Software Engineer I - Full Stack (Reporting)

About SpotOn We’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 users - Rated the top-rated point-of-sale (POS) for restaurants, bars, retail, and small businesses by Capterra users - Awarded Great Places to Work and Built In’s Best Workplaces for multiple years running We 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 experience - Strong 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.