Data Engineering Foundations
What a data engineer does, OLTP vs. OLAP, batch vs. streaming, the modern data stack, role of the DE.
A hands-on data engineering curriculum covering Spark, Airflow, Kafka, Snowflake, dbt, and the production realities of late-arriving data, backfills, and SLA-bound delivery — delivered by senior US engineers who maintain pipelines used by thousands of analysts daily.
Each tool taught with the workflows and failure modes practitioners actually meet on the job.
First half of the curriculum — core fundamentals and the most common day-to-day skills.
What a data engineer does, OLTP vs. OLAP, batch vs. streaming, the modern data stack, role of the DE.
Production Python — modules, packaging, typing, testing with pytest, logging, error handling, idempotency patterns.
Window functions, recursive CTEs, query plans, partition pruning, materialized views, time-travel queries.
PySpark fundamentals, DataFrames, lazy evaluation, partitioning, shuffle, broadcast joins, debugging OOM.
DAG authoring, operators, sensors, XComs, scheduling, retries, SLAs, dynamic DAGs, Airflow on K8s.
Second half — production patterns, real-world operations, and the senior-level depth.
Topics, partitions, consumer groups, exactly-once semantics, schema registry, KStreams, debugging lag.
Storage / compute separation, warehouses, RBAC, Snowpipe, streams & tasks, performance tuning.
Models, sources, tests, snapshots, macros, exposures, dbt Cloud vs. dbt Core, CI/CD with dbt.
Star vs. snowflake schemas, slowly changing dimensions, fact granularity, partition design, late-arriving data.
Data quality (Great Expectations), monitoring, alerting, SLAs, on-call for data, postmortem writing.
techventive.io turns this curriculum into job-ready positioning — project explanation, résumé and LinkedIn rewrites, GitHub portfolio polish, technical interview preparation, and placement-focused guidance through to the offer letter.
Freshers, working professionals, managers, career switchers, and aspirants who want a practical, job-focused path.