Full-Stack Backend & DevOps Engineer Intern

About the role

TobSar, an AI sales agent platform for social commerce, is hiring a Full-Stack Backend & DevOps Engineer Intern to join its core technical team onsite at the AUPP Tech Center in Phnom Penh. This is a backend-heavy internship with a strong DevOps and infrastructure focus, working on APIs, webhooks, databases, queues, caching, monitoring, deployment and production reliability, while helping move infrastructure from Docker to Kubernetes managed with KubeSphere.

Key responsibilities

• Design, implement and optimize backend services with Python frameworks such as Django and FastAPI, and build reliable REST APIs and internal integrations.
• Build high-throughput webhook endpoints and implement idempotency, deduplication, retries, timeouts and failure recovery.
• Design PostgreSQL schemas, indexes and queries, and use Redis and application-level caching to reduce latency.
• Build asynchronous processing with Redis, Celery, queues and workers, and profile and optimize slow endpoints and queries.
• Maintain Dockerfiles, Docker Compose, and help deploy services with Kubernetes and KubeSphere.
• Build CI/CD pipelines and implement logs, metrics, alerts, dashboards, traces and health checks.
• Debug production issues and apply secure practices for secrets, RBAC, HTTPS and authentication.
• Occasionally work on frontend features with Next.js when needed.

Required profile

• Good understanding of Python and experience with Django, FastAPI, Flask or similar frameworks.
• Curious about production systems, enjoys debugging and thinks about speed and reliability.
• Interested in Kubernetes and DevOps, willing to take ownership from implementation to deployment.

Required skills

• REST APIs, PostgreSQL or MySQL, SQL optimization and indexing.
• Familiarity with Redis, Celery, queues and asynchronous processing.
• Docker and Docker Compose; basic understanding of Kubernetes.
• Linux, SSH, Git and GitHub; basic CI/CD.
• Advantageous: Kubernetes, KubeSphere, Prometheus, Grafana, Loki, GitHub Actions, GitLab CI, Jenkins, Next.js or React.

Strong performers may continue as full-time engineers, with a possible path to Backend Engineer, Backend & DevOps Engineer, Platform Engineer / SRE, Tech Lead and Engineering Leadership. Applications go through the company's recruitment portal with a resume, GitHub profile, project links and answers to a short technical question.