Python Developer

Job Description

Job Description – Senior Python Developer

Remote - India

Summary

We are seeking an experienced Senior Python Developer to enhance and maintain the core backend APIs that support our high-volume online ordering systems, mobile applications, and in-store kiosks. This role requires deep technical expertise, strong SQL proficiency, and the ability to work within a large, mature codebase. You will play a key role in system modernization, performance optimization, and feature expansion across multiple customer-facing platforms.

Roles & Responsibilities

• API Development & Integration:
• Design, build, and document REST API endpoints using Flask and OpenAPI, and manage integrations with internal and external third-party systems (payments, loyalty, CRM, etc.).
• Performance Optimization:
• Identify performance issues and implement solutions using tools such as Datadog APM, advanced SQL tuning, indexing, caching mechanisms (e.g., Redis), and other optimization techniques.
• Database & Core Logic:
• Work directly with MySQL, writing and optimizing complex custom SQL queries across a large schema with hundreds of tables—without relying on ORMs.
• System Modernization:
• Refactor legacy components within a 10-year-old codebase to improve scalability, maintainability, and performance.
• Quality Assurance:
• Enhance and expand the automated testing suite to ensure reliability, stability, and overall code quality.
• Problem Solving:
• Investigate and resolve complex bugs across multiple interconnected services.
• Feature Development:
• Build and deploy new backend functionalities that directly support and extend features across consumer-facing applications.

Education

• Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent professional experience.

Experience

• 5+ years of professional Python development experience.
• Strong background working within large, established, and complex codebases.
• Prior experience with high-performance, consumer-facing applications—preferably in e-commerce, retail, or restaurant technology.

Skills

Core Technical Skills:

• Expert-level Python development (Flask preferred; Django acceptable).
• Deep SQL expertise with hands-on experience writing complex, custom queries.
• Experience integrating with external systems such as payments, CRM, loyalty, and marketing platforms.
• Strong understanding of performance optimization tools and techniques.

Nice-to-Have Skills:

• Knowledge of Celery, Redis, Docker, Linux, and AWS.

Soft Skills:

• Excellent written and verbal communication.
• Strong problem-solving skills and ability to work independently with minimal supervision.
• Ability to collaborate and be available until 5 p.m. US Eastern Time.

Work Environment

• Fully remote role; candidates must have a stable and reliable work-from-home setup.