Backend & DevOps Engineer

About the role

Klass Online is building a marketplace for knowledge, skills and expertise, and is looking for a Backend & DevOps Engineer to develop and maintain the backend services and cloud infrastructure behind its web and mobile applications. The role centres on Python backend development, Azure operations, deployment automation and the reliability, security and performance of the apps. Flutter experience is preferred for app integrations and frontend improvements.

Key responsibilities

• Develop and maintain Python/FastAPI services, REST APIs, asynchronous tasks and real-time functionality.
• Manage PostgreSQL databases, query optimisation and migrations using SQLAlchemy and Alembic.
• Maintain secure authentication and integrations for payments, notifications, storage and AI services.
• Manage Azure infrastructure, Docker, Kubernetes (AKS) and Terraform configurations.
• Maintain CI/CD pipelines, automated testing and staging and production deployments.
• Monitor application performance, troubleshoot production incidents and maintain security, backups and recovery procedures.
• Support Flutter development and API integration when required.

Required profile

• Bachelor's degree in Computer Science, Software Engineering, Information Technology or a closely related field (mandatory).
• Proven hands-on experience with Python, FastAPI, REST APIs and asynchronous programming.
• Strong PostgreSQL and SQL skills, including database design and query optimisation.
• Practical experience with Microsoft Azure, Docker, Kubernetes, CI/CD and infrastructure as code.
• Experience integrating external APIs and troubleshooting production systems.
• Strong problem-solving skills and the ability to work independently and collaboratively.

Required skills

• Git, Linux, automated testing (Pytest), API security, JWT and secrets management.
• Preferred: Dart and Flutter, Redis, Celery, Terraform, Azure Kubernetes Service, Sentry, OpenTelemetry, Firebase Cloud Messaging, payment integrations, AI services, JavaScript, TypeScript and React.