We're looking for an experienced Senior Python Developer to join our team and help us evolve the core APIs that power our diverse set of customer and administrative applications. You'll be working on a large, established codebase that handles high-volume transactions for online ordering, mobile apps, and in-store kiosks. This is a highly impactful role for someone who is comfortable diving into complex systems and is a true SQL expert.
Essential Job Functions
As a senior member of the team, you will be instrumental in expanding and maintaining our core backend services:
- API Development & Integration: Design and build new REST API endpoints using Flask and the OpenAPI specification. You will also manage complex integrations with various external and internal third-party APIs (e.g., payments, loyalty, other services).
- Performance Optimization: Proactively identify and resolve performance bottlenecks. You'll use tools like Datadog APM, advanced SQL query optimization, indexing, and caching (e.g., Redis) to ensure a low-latency, high-performance end-user experience.
- Database & Core Logic: Work directly with MySQL without an ORM, writing and optimizing complex, custom SQL queries to interact with a database featuring hundreds of tables.
- System Modernization & Quality: Refactor and modernize parts of a large, 10-year-old codebase. You will also take ownership of expanding our automated test suite to ensure robustness and quality.
- Problem Solving: Track down and resolve complex bugs across the application.
- Feature Expansion: Build new backend functionalities that directly expand the feature set of our consumer-facing products.
