Senior Python Developer

Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted.Salary ranges:PLN 13,000 - 22,400 monthly gross (Contract of employment - only in Poland).PLN 15,600 - 26,900 monthly before tax (Long-term contract (B2B)) + 20 paid days off.Project information:Start date: ASAPFull-time position100% remoteOur preference is and indefinite period contract.Client is a multinational science and technology company focused on Healthcare, Life Science, and Electronics.Client pain points in the project:- The TLC device software requires an update to be GxP compliant.- The client lacks the technical resources necessary to implement changes in the softwareScope of the project:FE: We will build upon the existing React frontend to implement the new GxP interfaces (e.g., login, e-signature, admin panels) while preserving the core scientific and analysis workflows your team already uses.BE: We will preserve the existing Python backend, which contains the core scientific IP. Our work will focus on adding new, parallel GxP-compliant services (for auth, audit, etc.) that integrate with the main application.Data & GXP Storage: This is the one new architectural component. As recommended by the audit, we will replace all insecure JSON files with a lightweight, industry-standard SQLite database. This is the foundation for secure user management and the immutable audit trail.Web Server: We will maintain the current, web server configurations. This is a standard and high-performance setup for serving Python and React applications.Opearting system: We will continue to use the existing hardware platform. Our 'Stabilization' scope directly addresses the audit's findings by automating the build process for this OS, making it traceable and auditable instead of a 'black box.'RequirementsMust-have:Deep technical expertise in PythonExperience with following tools:FlaskGeventSocketIOGunicornPytestExcellent command of written and spoken English (C1+) and Polish.You must be located in European Union - as the client provides their hardware.Nice-to-have:Experience in frontend (preferable React),BenefitsAccess to the WorkSmile platform offering benefits adapted to your preferences:Multisport card,Private health insurance package,Life insurance,And hundreds of other options to choose from 15 categories (shopping, leisure, travel, food, etc.).Discounts on Apple products.Performance Bonus.Various internal initiatives: webinars, knowledge-sharing sessions, .20 paid days off.Don't hesitate and apply right away!At Netguru, we're committed to creating an inclusive environment for everyone. If you require any disability-related adaptations during the recruitment process, please let us know. We're here to help!