13 technology profiles
Technologies
Understand the tools behind production systems: what they do, where they fit, and how to use them.
Git
Track an AI wrapper from local setup through pull requests, recovery, and releases.
Docker
Ship a festival's video service with its dependencies, persistent media, and a repeatable deployment.
Postgres
Choose a relational model for workshop bookings, then handle concurrent reservations and growing queries.
MongoDB
Model an irregular equipment catalog with documents, validation, useful indexes, and safe updates.
Redis
Keep a live quiz leaderboard, shared sessions, and bounded caches responsive across API instances.
Kafka
Let parcel scans feed tracking, notifications, and analytics independently, with replay and retry handling.
Cassandra
Distribute a fleet’s temperature history around bounded partitions, predictable reads, and retention.
Elasticsearch
Find the right runbook through imperfect queries, then evolve and rebuild its search index.
Snowflake
Reconcile business reports across source systems without borrowing checkout’s compute.
Kubernetes
Keep a lunch-delivery API running through a rush, a failed node, and an application rollout.
Helm
Maintain one webhook-relay chart for customer installations, with reviewed values and release history.
Terraform
Recreate a signing service’s infrastructure through reviewed plans, shared state, and deliberate imports.
aws cli
Grow a receipt-processing app through EC2, S3, SQS, RDS, ECR, EKS, and DynamoDB as each becomes useful.