Principal Software Engineer - Backend @ Mastercard

Job Description

About Entropik Entropik is a human insights AI company that enables brands across the globe to conduct market research and optimize their customer and user experience. Our suite of AI-powered products leverages Emotion AI technologies like Facial Coding, Eye Tracking, and Voice AI, helping companies make faster, more efficient, and bias-free decisions. About The Role As a Principal Software Engineer, you will drive end-to-end architecture, design, system scalability and development of AI based products at Entropik. While your primary expertise lies in backend development (Python, FastAPI, Flask, Django, AWS, NoSQL, SQL), you will also have a working knowledge of the frontend (React, TypeScript) ecosystem. Responsibilities Architect, develop, and optimize backend services using Python (FastAPI, Flask, Django). Design and maintain scalable, microservices-based architectures with API-first development. Lead backend performance optimization, security best practices, and cloud architecture. Work with SQL & NoSQL databases (PostgreSQL, MySQL, DynamoDB, Elasticsearch) for efficient data management. Integrate cloud-native solutions with AWS services like Lambda, API Gateway, S3, ECS, and DynamoDB. Collaborate with AI/ML teams to integrate Emotion AI-powered insights into our web applications. Mentor and guide junior engineers while promoting best engineering practices. Requirements 8+ years of experience in software development and comfortable working in a startup environment. 5+ years of hands-on experience with Python (FastAPI, Flask, Django) for building scalable web services. Familiarity with React, TypeScript and modern frontend frameworks. Expertise in microservices architecture, API development, authentication (OAuth2, JWT), and RESTful services. Strong knowledge of databases (PostgreSQL, MySQL, DynamoDB, Elasticsearch). Experience with cloud platforms (AWS, Azure) and containerization (Docker, Kubernetes). Strong debugging, problem-solving, and leadership skills.,

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Keyskills:   Python Flask Django AWS NoSQL SQL API development Authentication PostgreSQL MySQL DynamoDB Elasticsearch Docker Kubernetes Debugging Leadership skills React TypeScript Problemsolving