Backend: Java, Kotlin, Golang, Node.js, Python, Scala
Frontend: React.js, Angular
Mobile: Swift, Kotlin
DevOps & Deployment: Docker, Kubernetes, Jenkins, Terraform
Cloud Services: AWS, GCP, Azure
Data & AI: Kafka, Spark, TensorFlow, PyTorch
Databases: MySQL, PostgreSQL, MongoDB, Cassandra, Redis
Monitoring: Prometheus, Grafana, ELK Stack