At Qu you’ll find a fun, dynamic, and diverse culture that celebrates team and individual success. Our people are down to earth, creative thinkers who value innovation. While mostly virtual, we collaborate closely to produce leading-edge software solutions much needed in the restaurant industry. As the Senior Backend Engineer, you will build and scale PowerX cloud-based services and APIs that integrate seamlessly with our IoT devices and data platforms. At Qu you will: Onboard to PowerX and Qu dev environments; evaluate current backend code; contribute to anomaly detection v1 ship. Design, develop, and maintain highly scalable and reliable APIs and services. Build and optimize event-driven architectures leveraging SQS, SNS, and EventBridge for asynchronous workflows. Build and optimize database schemas, queries, and data flows in PostgreSQL. Ensure robust CI/CD pipelines using tools like GitHub Actions. Ensure security best practices across the backend, including API authentication, authorization, and infrastructure hardening. Write clean, efficient, and well-documented code while adhering to industry best practices. Conduct code reviews and foster a culture of engineering excellence. Collaborate with the product team to translate user needs into technical specifications and deliver user-friendly solutions. What we're looking for: 5+ years of professional experience in backend software development, preferably in a startup environment. Strong experience in backend frameworks like FastAPI, Django, or Flask, and strong proficiency in Python. Expertise with AWS services, such as Lambda, API Gateway, RDS, SQS, SNS, and EventBridge. Hands-on experience with SQLAlchemy or similar ORM tools for managing complex database interactions. Solid understanding of event-driven architectures and asynchronous messaging systems. Familiarity with role-based access control (RBAC) systems and API token-based authentication. Knowledge of CI/CD pipelines and automated testing frameworks, especially GitHub Actions. Experience with containerization and orchestration (Docker, Kubernetes, or AWS ECS) Familiarity with Agile development methodologies and tools like GitHub, Notion, or Jira. Strong communication skills and ability to work in a fully remote environment.