Period
to 16 January 2018

The following table provides summary statistics for contract job vacancies with a requirement for Spark SQL skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Spark SQL over the 6 months to 16 January 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Apache Spark SQL
UK
6 months to
16 Jan 2018
Same period 2017 Same period 2016
Rank 851 839 869
Rank change year-on-year -12 +30 -8
Contract jobs citing Spark SQL 24 23 13
As % of all contract IT jobs advertised in the UK 0.024% 0.024% 0.012%
As % of the Database & Business Intelligence category 0.11% 0.11% 0.053%
Number of daily rates quoted 12 16 11
UK median daily rate £650 £550 £625
Median daily rate % change year-on-year +18.18% -12.00% +13.64%
10th Percentile £590 £463 £500
90th Percentile £700 £650 £675
UK excluding London median daily rate £700 £550 £500
% change year-on-year +27.27% +10.00% -
Number of hourly rates quoted 0 0 0
UK median hourly rate - - -
UK excluding London median hourly rate - - -

Spark SQL is in the Databases and Business Intelligence category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for database or business intelligence skills.

All Database and Business Intelligence Skills
UK
Contract vacancies with a requirement for database or business intelligence skills 22,068 21,747 24,744
As % of all contract IT jobs advertised in the UK 22.01% 22.52% 23.08%
Number of daily rates quoted 15,353 14,496 16,456
UK median daily rate £450 £425 £418
Median daily rate % change year-on-year +5.88% +1.80% +4.38%
10th Percentile £310 £288 £275
90th Percentile £625 £600 £588
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.23% +3.33% +7.14%
Number of hourly rates quoted 255 319 425
UK median hourly rate £30.75 £28.18 £30.00
Median hourly rate % change year-on-year +9.12% -6.07% +4.57%
10th Percentile £14.54 £10.00 £12.00
90th Percentile £55.36 £50.32 £52.50
UK excluding London median hourly rate £35.00 £26.94 £29.50
% change year-on-year +29.93% -8.69% +7.27%

Spark SQL
Job Vacancy Trend

Job postings citing Spark SQL as a percentage of all IT jobs advertised.

Job vacancy trend for Spark SQL in the UK

Spark SQL
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Spark SQL.

Contractor daily rate trend for Spark SQL in the UK

Spark SQL
Top 5 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Spark SQL within the UK over the 6 months to 16 January 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -13 21 £625 +13.64% 12
London -40 15 £625 +6.38% 11
UK excluding London +7 8 £700 +27.27% 1
South East - 6 - -
Scotland - 2 £700 -

For the 6 months to 16 January 2018, IT contractor jobs citing Spark SQL also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for Spark SQL.

1 24 (100.00%) Apache Spark
2 23 (95.83%) SQL
3 19 (79.17%) Hadoop
3 19 (79.17%) Big Data
4 14 (58.33%) Agile Software Development
4 14 (58.33%) Java
5 10 (41.67%) Finance
6 8 (33.33%) Scrum
6 8 (33.33%) Data Modelling
6 8 (33.33%) Scala
6 8 (33.33%) Cloudera
6 8 (33.33%) NoSQL
6 8 (33.33%) MongoDB
7 7 (29.17%) Apache Cassandra
8 6 (25.00%) Apache Avro
8 6 (25.00%) HDFS
8 6 (25.00%) Python
9 5 (20.83%) Business Intelligence
9 5 (20.83%) Data Architecture
9 5 (20.83%) Spark Streaming
9 5 (20.83%) Kafka
9 5 (20.83%) Analytics
9 5 (20.83%) Tableau
9 5 (20.83%) HBase
9 5 (20.83%) Apache ZooKeeper
9 5 (20.83%) Apache Hive
10 4 (16.67%) MapReduce
10 4 (16.67%) Visualisation
10 4 (16.67%) Data Quality
10 4 (16.67%) MapR

Spark SQL
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 24 (100.00%) Apache Spark
2 3 (12.50%) Oracle Coherence
3 2 (8.33%) Apache
4 1 (4.17%) Elasticsearch
4 1 (4.17%) SAS
Applications
1 1 (4.17%) MS Visio
Cloud Services
1 1 (4.17%) Amazon AWS
Communications & Networking
1 1 (4.17%) SNA
Database & Business Intelligence
1 19 (79.17%) Big Data
1 19 (79.17%) Hadoop
2 8 (33.33%) MongoDB
2 8 (33.33%) NoSQL
3 7 (29.17%) Apache Cassandra
4 5 (20.83%) Apache Hive
4 5 (20.83%) HBase
5 4 (16.67%) Data Warehouse
6 3 (12.50%) Impala
6 3 (12.50%) Parquet
6 3 (12.50%) Sqoop
7 2 (8.33%) Apache Zeppelin
7 2 (8.33%) BusinessObjects
7 2 (8.33%) QlikView
8 1 (4.17%) CouchDB
8 1 (4.17%) Neo4j
8 1 (4.17%) OLAP
Development Applications
1 3 (12.50%) Cucumber
1 3 (12.50%) Git (software)
1 3 (12.50%) Maven
1 3 (12.50%) SonarQube
1 3 (12.50%) TeamCity
2 1 (4.17%) ERwin
General
1 10 (41.67%) Finance
2 3 (12.50%) Banking
2 3 (12.50%) Front Office
3 1 (4.17%) Retail
Job Titles
1 11 (45.83%) Developer
2 8 (33.33%) Apache Spark Developer
2 8 (33.33%) Data Engineer
3 5 (20.83%) Hadoop Developer
4 4 (16.67%) Software Engineer
4 4 (16.67%) SQL Developer
5 3 (12.50%) Architect
5 3 (12.50%) Big Data Developer
5 3 (12.50%) Data Architect
5 3 (12.50%) Senior Software Engineer
5 3 (12.50%) Tableau Developer
6 2 (8.33%) Big Data Architect
6 2 (8.33%) Big Data Engineer
6 2 (8.33%) Business Developer
6 2 (8.33%) Business Intelligence Developer
6 2 (8.33%) Cloud Developer
6 2 (8.33%) Data Visualisation Developer
6 2 (8.33%) Hadoop Engineer
6 2 (8.33%) Java Developer
6 2 (8.33%) Java Engineer
Libraries, Frameworks & Software Standards
1 6 (25.00%) Apache Avro
2 5 (20.83%) Kafka
2 5 (20.83%) Spark Streaming
3 4 (16.67%) RESTful
4 3 (12.50%) Akka
4 3 (12.50%) Gherkin
4 3 (12.50%) OpenCL
5 1 (4.17%) GraphX
5 1 (4.17%) J2EE
5 1 (4.17%) JDBC
5 1 (4.17%) JMS
5 1 (4.17%) JNDI
5 1 (4.17%) Lucene
5 1 (4.17%) REST
5 1 (4.17%) Spring
5 1 (4.17%) Spring Boot
5 1 (4.17%) Web Services
Miscellaneous
1 4 (16.67%) Analytical Skills
2 3 (12.50%) Credit Risk
2 3 (12.50%) Derivative
2 3 (12.50%) Interest Rate Derivative
2 3 (12.50%) Market Risk
3 2 (8.33%) Clustering
4 1 (4.17%) Reference Data
4 1 (4.17%) Social Network
Operating Systems
1 3 (12.50%) Linux
2 1 (4.17%) Unix
Processes & Methodologies
1 14 (58.33%) Agile Software Development
2 8 (33.33%) Data Modelling
2 8 (33.33%) Scrum
3 5 (20.83%) Analytics
3 5 (20.83%) Business Intelligence
3 5 (20.83%) Data Architecture
4 4 (16.67%) ETL
4 4 (16.67%) MapReduce
4 4 (16.67%) Software Engineering
4 4 (16.67%) TDD
4 4 (16.67%) Visualisation
5 3 (12.50%) Machine Learning
5 3 (12.50%) PnL Attribution
5 3 (12.50%) Risk Management
5 3 (12.50%) Technical Analysis
6 2 (8.33%) Low Latency
6 2 (8.33%) Refactoring
6 2 (8.33%) Technical Architecture
7 1 (4.17%) Release Management
7 1 (4.17%) Web Development
Programming Languages
1 23 (95.83%) SQL
2 14 (58.33%) Java
3 8 (33.33%) Scala
4 6 (25.00%) Python
5 3 (12.50%) Bash Shell
6 2 (8.33%) PL/SQL
7 1 (4.17%) R
7 1 (4.17%) Shell Script
Quality Assurance & Compliance
1 4 (16.67%) Data Quality
2 3 (12.50%) GDPR
3 2 (8.33%) QA
System Software
1 6 (25.00%) HDFS
2 5 (20.83%) Apache ZooKeeper
3 1 (4.17%) Apache Flume
Systems Management
1 3 (12.50%) Mesos
2 1 (4.17%) Hadoop YARN
2 1 (4.17%) Opscode Chef
2 1 (4.17%) Puppet
Vendors
1 8 (33.33%) Cloudera
2 5 (20.83%) Tableau
3 4 (16.67%) MapR
3 4 (16.67%) Oracle
4 3 (12.50%) Ab Initio
5 2 (8.33%) Hortonworks
6 1 (4.17%) Cognos
6 1 (4.17%) Palantir