Senior Software Engineer (Python)
About The Position
We are The Codest - an International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Our core values lie in a “Customers and People First” approach that prioritizes the needs of our customers and a collaborative environment for our employees, enabling us to deliver exceptional products and services. Our expertise centers on web development, cloud engineering, DevOps, and quality. After many years of developing our own product - Yieldbird, which was honored as a laureate of the prestigious Top25 Deloitte awards, we arrived at our mission: to help tech companies build impactful products and scale their IT teams by boosting IT delivery performance. Through our extensive experience with product development challenges, we have become experts in building digital products and scaling IT teams. We want to continue our growth. If you’re goal-driven and looking for new opportunities, join our team! What awaits you is an enriching and collaborative environment that fosters your growth at every step. Our client is one of the largest e-commerce platforms in Europe, used by millions of users every day. The company connects sellers - from small businesses to global brands - with customers, offering a vast product selection, fast delivery, and a well-crafted shopping experience. Project Name: Delivery Optimization Engine (DOE). We are looking for support of a 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 of Allegro's Delivery Optimization Engine (DOE) and directly enhancing our logistics efficiency.
Requirements
- At least 4 years of commercial experience in backend software development using Python and SQL.
- Experience or a strong understanding of the logistics domain, network analysis, and routing (e.g., graph theory, road network modeling, Vehicle Routing Problems).
- Experience with geospatial data concepts applied via code (e.g., H3/spatial indexing, clustering algorithms, PostGIS).
- Familiarity with cloud ecosystems (Google Cloud Platform preferred) and modern infrastructure tools (Kubernetes, Terraform, Airflow).
- Advocacy for engineering excellence, including clean code, TDD, CI/CD, and a strong commitment to rigorous code reviews to maintain team architectural stability.
- Knowledge of how to design and scale a microservices-based architecture.
- A positive attitude, excellent teamwork skills, and a higher technical education (Computer Science or related fields).
- English level min. B2+
Responsibilities
- Supporting the design and scaling of high-throughput services that power our first and mile operations.
- Leveraging network analysis and spatial optimization to build the next generation of Allegro's Delivery Optimization Engine (DOE).
- Directly enhancing logistics efficiency.
- Advocating for engineering excellence, including clean code, TDD, CI/CD, and a strong commitment to rigorous code reviews to maintain team architectural stability.
- Designing and scaling a microservices-based architecture.
Benefits
- 20–25k PLN on a B2B contract
- Paid days off on public holidays in the case of a monthly fixed-fee settlement
- Access to the Worksmile platform, where you receive 300 PLN each month to spend on gift cards or various services
- A work environment that values growth and innovation
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
Associate degree
