Data & AI · Skill guide
Spark is the dominant big-data processing keyword — postings screen for API depth (DataFrames, Spark SQL, streaming), tuning experience, and the data volumes processed, often alongside Databricks as a named platform.
Live postings usually name this as Spark — 8% of 2,367 engineering JDs in our 15 August 2026 snapshot . Densest in Data Engineer (23%), Machine Learning Engineer (18%), and Data Scientist (11%) .
Job descriptions rarely ask for Apache Spark alone — these co-terms appear in the same postings and are screened together. Cover the ones you've genuinely used.
Public ATS boards (Arbeitnow, Greenhouse, Ashby, Google Careers, Lever, RemoteOK, Remotive). Not LinkedIn or Indeed. Percentages are share of postings that already mention Apache Spark.
A skill in a list is a claim; a skill in a bullet with an outcome is evidence. Patterns to adapt with your real numbers:
“Built PySpark pipelines on Databricks processing 8TB/day of clickstream into Delta Lake with SLA-backed hourly freshness”
“Tuned shuffle partitions and broadcast joins on the core ETL job, cutting runtime from 4 hours to 50 minutes and cluster costs 45%”
Put "Apache Spark" in your skills section in its exact form, then prove it in at least one experience bullet with context and an outcome — a skill that appears only in a list reads as padding to recruiters. Spark is the dominant big-data processing keyword — postings screen for API depth (DataFrames, Spark SQL, streaming), tuning experience, and the data volumes processed, often alongside Databricks as a named platform.
Job descriptions that ask for Apache Spark typically also screen for: Python, Machine Learning, AWS, SQL, Kafka. Include the ones you've genuinely used — co-keyword coverage is how ATS ranking separates real practitioners from list-padders.
List it only if you could answer interview questions about it comfortably. A safer honest framing for light experience is grouping it under a "familiar with" tier, separate from your core skills — inflated skill claims surface fast in technical interviews.
Paste a job description that requires it — RoleTuner shows whether your resume surfaces Apache Spark and its co-keywords the way an ATS reads them, free.