Senior Python/GIS Engineer

For our client, a leading player in the eCommerce industry, we are seeking a **Senior Python Developer** to join a talented engineering team. In this role, you'll contribute to the development of scalable backend solutions, collaborate with cross-functional teams, and have a real impact on the company's products and technology. ## RESPONSIBILITIES We are looking for support of Senior Software Engineer specializing in Python and routing algorithms. The specialist will be responsible for supporting the design and scaling of high-throughput services that power our first and last-mile operations. By leveraging network analysis and spatial optimization, the specialist will assist in building the next generation and directly enhancing our logistics efficiency. **Stack:** We are bypassing traditional, legacy GIS software in favor of cloud-native Python architectures, Big Data solutions, and modern routing APIs. **Current Technology Stack used in Project:** * Backend & Routing: Python, Microservices, Open-source & Commercial Routing Engines. * Data & Cloud: Google Cloud Platform (BigQuery, Dataflow, Composer/Airflow), SQL. * Infrastructure: Kubernetes,Terraform, CI/CD pipelines ## REQUIREMENTS * Have at least 4 years of commercial experience in backend software development using Python and SQL. * Possess experience or a strong understanding of the logistics domain, network analysis, and routing (e.g., graph theory, road network modeling, Vehicle Routing Problems) * Have experience with geospatial data concepts applied via code (e.g., H3/spatial indexing, clustering algorithms, PostGIS). * Be familiar with cloud ecosystems (Google Cloud Platform preferred) and modern infrastructure tools (Kubernetes, Terraform, Airflow). * Advocate for engineering excellence, including clean code, TDD, CI/CD, and a strong commitment to rigorous code reviews to maintain team architectural stability. * Know how to design and scale a microservices-based architecture. * Knowledge of Polish (native level), English (B2+ level) * Have a positive attitude, excellent teamwork skills, and a higher technical education (Computer Science or related fields). ## WHAT DO WE OFFER ON THIS PROJECT? * Cooperation based on a B2B contract and rate: 140-160 PLN/hour * remote work / Hybrid work from Warsaw (1 time per month) * The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. * Events and integration meetings, as well as participation in various initiatives, e.g., sports. * Access to the benefits offering (medical care, Multisport card). ## WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? **Application:** Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. **Screening:** Have a conversation with a speedapp recruiter about your experience. **Next steps:** The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process.