Period
to 26 October 2021

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Impala skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Impala over the 6 months to 26 October 2021 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 Impala
Central London > City of London
6 months to
26 Oct 2021
Same period 2020 Same period 2019
Rank 173 114 217
Rank change year-on-year -59 +103 +15
Contract jobs citing Impala 7 3 14
As % of all contract jobs advertised in the City of London 0.18% 0.17% 0.24%
As % of the Database & Business Intelligence category 0.78% 0.63% 0.92%
Number of daily rates quoted 6 3 9
10th Percentile £575 £349 £533
25th Percentile £583 £415 £555
Median daily rate (50th Percentile) £613 £550 £650
Median % change year-on-year +11.36% -15.38% +20.93%
75th Percentile £633 £588 £675
90th Percentile £638 £595 £713
Central London median daily rate £613 £550 £575
% change year-on-year +11.36% -4.35% +6.98%

Impala 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 advertised in the City of London with a requirement for database or business intelligence skills.

All Database and Business Intelligence Skills
City of London
Contract vacancies with a requirement for database or business intelligence skills 892 474 1,520
As % of all contract IT jobs advertised in the City of London 22.87% 26.27% 25.59%
Number of daily rates quoted 673 359 1,226
10th Percentile £395 £360 £388
25th Percentile £488 £425 £456
Median daily rate (50th Percentile) £570 £525 £525
Median % change year-on-year +8.57% - -
75th Percentile £665 £600 £608
90th Percentile £738 £675 £675
Central London median daily rate £570 £525 £525
% change year-on-year +8.57% - -
Number of hourly rates quoted 7 5 5
10th Percentile " £18.20 £21.20
25th Percentile £8.00 £20.00 £21.25
Median hourly rate £22.50 £22.00 £44.57
Median % change year-on-year +2.27% -50.63% +98.07%
75th Percentile £34.38 £38.25 £49.13
90th Percentile £45.85 £38.85 £52.95
Central London median hourly rate £22.50 £22.00 £44.57
% change year-on-year +2.27% -50.63% +98.07%

Impala
Job Vacancy Trend in the City of London

Job postings citing Impala as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Impala in the City of London

Impala
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing Impala in the City of London.

Daily rate trend for Impala in the City of London

For the 6 months to 26 October 2021, IT contractor jobs citing Impala also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region with a requirement for Impala.

1 7 (100.00%) Apache Hive
1 7 (100.00%) Apache Spark
1 7 (100.00%) Data Ingestion
2 6 (85.71%) Data Pipeline
2 6 (85.71%) AWS
2 6 (85.71%) Hadoop
3 5 (71.43%) Scala
3 5 (71.43%) Java
3 5 (71.43%) Python
3 5 (71.43%) Data Modelling
3 5 (71.43%) Machine Learning
3 5 (71.43%) Algorithms
3 5 (71.43%) Data Science
4 4 (57.14%) Data Lake
4 4 (57.14%) Apache Airflow
4 4 (57.14%) Presto
4 4 (57.14%) Data Engineering
4 4 (57.14%) Kafka
4 4 (57.14%) Azure
4 4 (57.14%) C++
4 4 (57.14%) Computer Science
5 3 (42.86%) Migration
5 3 (42.86%) Apache
5 3 (42.86%) Fintech
5 3 (42.86%) DevOps
6 2 (28.57%) Hadoop YARN
6 2 (28.57%) Big Data
6 2 (28.57%) Hortonworks
6 2 (28.57%) Cloudera
6 2 (28.57%) Amazon S3

Impala
Co-occurring IT Skills in the City of London 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 7 (100.00%) Apache Spark
2 4 (57.14%) Apache Airflow
3 3 (42.86%) Apache
Cloud Services
1 6 (85.71%) AWS
2 4 (57.14%) Azure
3 2 (28.57%) Amazon S3
Database & Business Intelligence
1 7 (100.00%) Apache Hive
2 6 (85.71%) Hadoop
3 4 (57.14%) Data Lake
3 4 (57.14%) Presto
4 2 (28.57%) Big Data
Development Applications
1 1 (14.29%) MLflow
General
1 1 (14.29%) Social Skills
Job Titles
1 7 (100.00%) Data Engineer
2 3 (42.86%) Senior Data Engineer
Libraries, Frameworks & Software Standards
1 4 (57.14%) Kafka
2 2 (28.57%) Web Services
Miscellaneous
1 5 (71.43%) Algorithms
Processes & Methodologies
1 7 (100.00%) Data Ingestion
2 6 (85.71%) Data Pipeline
3 5 (71.43%) Data Modelling
3 5 (71.43%) Data Science
3 5 (71.43%) Machine Learning
4 4 (57.14%) Computer Science
4 4 (57.14%) Data Engineering
5 3 (42.86%) DevOps
5 3 (42.86%) Fintech
5 3 (42.86%) Migration
6 2 (28.57%) ETL
6 2 (28.57%) ITIL
6 2 (28.57%) Service Management
7 1 (14.29%) MLOps
Programming Languages
1 5 (71.43%) Java
1 5 (71.43%) Python
1 5 (71.43%) Scala
2 4 (57.14%) C++
3 2 (28.57%) Shell Script
3 2 (28.57%) SQL
4 1 (14.29%) Bash Shell
Systems Management
1 2 (28.57%) Hadoop YARN
2 1 (14.29%) Kubeflow
2 1 (14.29%) Oozie
Vendors
1 2 (28.57%) Cloudera
1 2 (28.57%) Hortonworks