
Measure P95/P99 before paying for provisioned concurrency — choose on‑demand or provisioned to balance tail latency, cost, and spikes.

Certifications can open screens, but salary follows role scope, production ownership, and measurable impact.

Explains how IoT Core ingests, filters, and routes device events, plus guidance on scaling, replay, and reliability.

Seven Databricks warehouse HA patterns to meet RTO/RPO: scaling, AZ resilience, failover, retries, stateless compute, standbys, isolation.

Design Airflow DAGs for safe retries and idempotent publishing: task boundaries, sensors, schedules, timeouts, and testing.

Use streaming events plus historical context to detect fraud across banking, e‑commerce, insurance, and telecom—making fast, accurate risk decisions.

Checklist for secure data migration: planning, encryption, access controls, logging, testing, cleanup, and post-move governance.

Checklist to secure event-driven systems: map flows, enforce least privilege, validate schemas, protect identities, control retries, and audit.

Modern data pipeline design spans 8 stages, from ingestion and stream processing to storage, orchestration, analytics, and machine learning.

Validate ETL mappings, schema changes, counts, and transformation rules in one place before QA or deployment.

Learn how Salesforce Marketing Cloud file drop automations import SFTP batch data, unzip files, and support ETL workflows with data extract activities.

Assess your data engineering skills with practical questions, clear scoring, and domain-by-domain feedback tailored to your experience level.