Python Developer (routing algorithms, e-commerce)

We are looking for a Senior Software Engineer specializing in Python and routing algorithms. In this role, you will support the design and scaling of high-throughput services that power first-mile and last-mile delivery logistics.

• Unique atmosphere: A good and friendly atmosphere in the company and the satisfaction of working with both departmental colleagues and direct superiors.
• Team-building events: Large internal technology conferences, star parties and team outings.
• Flexibility: Working hours are flexible and tailored to individual preferences. As is the mode of work delivery: remotely or in a hybrid model.
• Development paths:They are clear, straightforward and certainly not bumpy. Choose between a managerial or expert development path.
• Certifications: We facilitate the development of desired competencies, subsidize training and courses.
• Security: We have many years of experience in the market and implement national and international projects. We skillfully manage tasks and enable smooth allocation between projects.
• Language lessons: For those who speak fluently and want to maintain this level or wish to develop their language skills, we enable free participation in language lessons. Are conducted in the modern and safe form of online meetings. Just learn IT!
• Comfort at work: Attractively decorated relaxation areas, available in the company's largest branches, to encourage relaxation during the day, and equipped kitchens with aromatic coffee.
• Support for activity: We have soccer teams, we play championships, we have marathon runners and other active sports lovers on board. We support all passions.

Zakres obowiązków

• Supporting the design and scaling of high-throughput services powering first-mile and last-mile delivery logistics operations.
• Co-developing Allegro's next-generation Delivery Optimization Engine (DOE) using network analysis and spatial optimization.
• Developing and implementing routing algorithms.
• Directly impacting and improving the efficiency of the company's logistics processes.

Wymagania

• Min. 4 years of commercial experience in backend software development using Python and SQL.
• Experience in or very good knowledge of the logistics domain, network analysis, and routing (e.g., graph theory, road network modeling, Vehicle Routing Problem – VRP).
• Experience with programmatically utilized geospatial data (e.g., H3, spatial indexing, clustering algorithms, PostGIS).
• Knowledge of the cloud environments (Google Cloud Platform preferred) and modern infrastructure tools (Kubernetes, Terraform, Airflow).
• Promote engineering best practices, such as: Clean Code, TDD (Test Driven Development), CI/CD, rigorous code review.
• Ability to design and scale microservices-based architecture.
• Positive attitude, strong teamwork skills, and hold a university degree in computer science or a related technical field.
• Good command of English and Polish.
• Readiness to participate in workshops at the client's office in Warsaw once per month.

Tech stack

• Python
• SQL
• Logistics
• Cloud
• Google Cloud Platform
• Kubernetes
• Terraform
• Airflow
• Clean Code
• TDD
• CI/CD
• Degree