Period
to 27 October 2020

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Big Data skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Big Data over the 6 months to 27 October 2020 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.

Big Data
Central London > City of London
6 months to
27 Oct 2020
Same period 2019 Same period 2018
Rank 78 65 70
Rank change year-on-year -13 +5 -14
Contract jobs citing Big Data 38 216 249
As % of all contract jobs advertised in the City of London 2.11% 3.64% 3.56%
As % of the Database & Business Intelligence category 8.09% 14.33% 13.73%
Number of daily rates quoted 31 184 216
Median daily rate £520 £550 £575
Median daily rate % change year-on-year -5.45% -4.35% -
10th Percentile £406 £450 £413
90th Percentile £625 £710 £697
Central London median daily rate £523 £550 £575
% change year-on-year -5.00% -4.35% -
Number of hourly rates quoted 0 2 0
Median hourly rate - £46.85 -
Central London median hourly rate - £46.85 -

Big Data 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 470 1,507 1,814
As % of all contract IT jobs advertised in the City of London 26.11% 25.38% 25.97%
Number of daily rates quoted 333 1,211 1,428
Median daily rate £515 £525 £525
Median daily rate % change year-on-year -1.90% - -
10th Percentile £350 £388 £375
90th Percentile £675 £675 £675
Central London median daily rate £520 £525 £525
% change year-on-year -0.95% - +0.96%
Number of hourly rates quoted 6 6 12
Median hourly rate £30.50 £46.85 £22.25
Median hourly rate % change year-on-year -34.90% +110.55% -19.09%
10th Percentile £20.75 £21.21 £19.50
90th Percentile £38.75 £81.50 £41.68
Median hourly rate £30.50 £46.85 £22.25
% change year-on-year -34.90% +110.55% -19.09%

Big Data
Job Vacancy Trend in the City of London

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

Job vacancy trend for Big Data in the City of London

Big Data
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for Big Data in the City of London

Big Data
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Big Data in the City of London over the 6 months to 27 October 2020.

Daily rate histogram for Big Data in the City of London

Big Data
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing Big Data in the City of London.

Hourly rate trend for Big Data in the City of London

For the 6 months to 27 October 2020, IT contractor jobs citing Big Data 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 Big Data.

1 24 (63.16%) Python
1 24 (63.16%) Apache Spark
2 18 (47.37%) Hadoop
3 16 (42.11%) Cloudera
4 15 (39.47%) Scala
5 14 (36.84%) SQL
6 13 (34.21%) Java
6 13 (34.21%) Finance
7 12 (31.58%) Data Modelling
8 11 (28.95%) Banking
8 11 (28.95%) Azure
9 9 (23.68%) AWS
9 9 (23.68%) Apache Hive
9 9 (23.68%) Google
9 9 (23.68%) GCP
10 8 (21.05%) Hortonworks
10 8 (21.05%) Analytics
11 7 (18.42%) Agile Software Development
11 7 (18.42%) ETL
11 7 (18.42%) Business Intelligence
11 7 (18.42%) JavaScript
11 7 (18.42%) Git (software)
11 7 (18.42%) Continuous Integration
11 7 (18.42%) Jenkins
11 7 (18.42%) Ansible
11 7 (18.42%) PySpark
11 7 (18.42%) Data Science
12 6 (15.79%) Anaconda
12 6 (15.79%) DevOps
12 6 (15.79%) Machine Learning

Big Data
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 24 (63.16%) Apache Spark
2 5 (13.16%) Elasticsearch
2 5 (13.16%) Tornado
3 3 (7.89%) Apache
3 3 (7.89%) Confluence
3 3 (7.89%) SAS
4 1 (2.63%) Apache Airflow
4 1 (2.63%) R Markdown
4 1 (2.63%) Tomcat
Applications
1 1 (2.63%) Chatbot
Cloud Services
1 11 (28.95%) Azure
2 9 (23.68%) AWS
2 9 (23.68%) GCP
3 3 (7.89%) Cloud Computing
3 3 (7.89%) Power Platform
4 2 (5.26%) Amazon EMR
4 2 (5.26%) Amazon S3
4 2 (5.26%) Serverless
5 1 (2.63%) Amazon CloudWatch
5 1 (2.63%) AWS CloudFormation
5 1 (2.63%) Datadog
Communications & Networking
1 1 (2.63%) HTTP
1 1 (2.63%) Kerberos
1 1 (2.63%) SSL
Database & Business Intelligence
1 18 (47.37%) Hadoop
2 9 (23.68%) Apache Hive
3 6 (15.79%) NoSQL
4 5 (13.16%) Data Warehouse
5 4 (10.53%) Relational Database
6 3 (7.89%) Amazon Redshift
6 3 (7.89%) Impala
6 3 (7.89%) Power BI
6 3 (7.89%) RDBMS
7 2 (5.26%) MySQL
7 2 (5.26%) SAS EBI
7 2 (5.26%) Tableau
8 1 (2.63%) Couchbase
8 1 (2.63%) Data Lake
8 1 (2.63%) Flink
8 1 (2.63%) HBase
8 1 (2.63%) MariaDB
8 1 (2.63%) MongoDB
8 1 (2.63%) SQL Server Integration Services
8 1 (2.63%) Sqoop
Development Applications
1 7 (18.42%) Git (software)
1 7 (18.42%) Jenkins
2 5 (13.16%) GitLab
2 5 (13.16%) Hudson
2 5 (13.16%) ProC
3 3 (7.89%) JIRA
4 1 (2.63%) Gradle
4 1 (2.63%) MLflow
General
1 13 (34.21%) Finance
2 11 (28.95%) Banking
3 2 (5.26%) Investment Banking
3 2 (5.26%) Marketing
4 1 (2.63%) Front Office
4 1 (2.63%) Retail
Job Titles
1 15 (39.47%) Data Engineer
2 8 (21.05%) Developer
3 4 (10.53%) Architect
3 4 (10.53%) Big Data Engineer
3 4 (10.53%) DevOps Engineer
4 3 (7.89%) Big Data Developer
4 3 (7.89%) Cloud Engineer
4 3 (7.89%) Data Scientist
5 2 (5.26%) AWS Engineer
5 2 (5.26%) Azure Developer
5 2 (5.26%) Cloud Developer
5 2 (5.26%) Consultant
5 2 (5.26%) Hadoop Consultant
5 2 (5.26%) Infrastructure Consultant
5 2 (5.26%) Lead Architect
5 2 (5.26%) Pega Architect
5 2 (5.26%) Scala Developer
6 1 (2.63%) Data Analytics Architect
6 1 (2.63%) Data Warehouse Developer
6 1 (2.63%) Operations Director
Libraries, Frameworks & Software Standards
1 7 (18.42%) PySpark
2 6 (15.79%) Anaconda
2 6 (15.79%) CSS
2 6 (15.79%) HTML
3 5 (13.16%) CSS3
3 5 (13.16%) Elastic Stack
3 5 (13.16%) Flask
3 5 (13.16%) HTML5
3 5 (13.16%) Kafka
3 5 (13.16%) Twisted
4 2 (5.26%) RESTful
4 2 (5.26%) Web Services
4 2 (5.26%) XML
5 1 (2.63%) LAMP
5 1 (2.63%) Matplotlib
5 1 (2.63%) Natural Language Processing
5 1 (2.63%) Node.js
5 1 (2.63%) NumPy
5 1 (2.63%) Pandas
5 1 (2.63%) Spring
Miscellaneous
1 4 (10.53%) Credit Risk
2 3 (7.89%) Algorithms
3 2 (5.26%) Hedge funds
4 1 (2.63%) Analytical Mindset
4 1 (2.63%) Analytical Skills
4 1 (2.63%) Data Structures
4 1 (2.63%) Enterprise Software
4 1 (2.63%) Grid Computing
4 1 (2.63%) Linux Command Line
4 1 (2.63%) Public Cloud
Operating Systems
1 5 (13.16%) Linux
2 1 (2.63%) Unix
2 1 (2.63%) VMS
Processes & Methodologies
1 12 (31.58%) Data Modelling
2 8 (21.05%) Analytics
3 7 (18.42%) Agile Software Development
3 7 (18.42%) Business Intelligence
3 7 (18.42%) Continuous Integration
3 7 (18.42%) Data Science
3 7 (18.42%) ETL
4 6 (15.79%) Continuous Deployment
4 6 (15.79%) DevOps
4 6 (15.79%) Machine Learning
4 6 (15.79%) Scrum
5 5 (13.16%) Stakeholder Management
6 4 (10.53%) Data Engineering
6 4 (10.53%) Data Integration
6 4 (10.53%) Software Engineering
7 3 (7.89%) Computer Science
7 3 (7.89%) Data Ingestion
7 3 (7.89%) ETL Development
7 3 (7.89%) Mathematics
7 3 (7.89%) Microservices
Programming Languages
1 24 (63.16%) Python
2 15 (39.47%) Scala
3 14 (36.84%) SQL
4 13 (34.21%) Java
5 7 (18.42%) JavaScript
6 3 (7.89%) Ruby
7 2 (5.26%) Bash Shell
7 2 (5.26%) C#
7 2 (5.26%) Go
7 2 (5.26%) Java 8
8 1 (2.63%) C++
8 1 (2.63%) Data Analysis Expressions (DAX)
8 1 (2.63%) Groovy
8 1 (2.63%) Perl
8 1 (2.63%) PowerShell
8 1 (2.63%) R
8 1 (2.63%) Shell Script
Qualifications
1 6 (15.79%) SC Cleared
1 6 (15.79%) Security Cleared
2 3 (7.89%) Degree
3 1 (2.63%) Numerate Degree
3 1 (2.63%) PhD
Quality Assurance & Compliance
1 1 (2.63%) CDISC
1 1 (2.63%) GDPR
1 1 (2.63%) IFRS
1 1 (2.63%) MiFID
1 1 (2.63%) Solvency II
System Software
1 3 (7.89%) Docker
1 3 (7.89%) HDFS
Systems Management
1 7 (18.42%) Ansible
2 5 (13.16%) Kubernetes
3 3 (7.89%) Terraform
4 2 (5.26%) Kubeflow
5 1 (2.63%) Kibana
5 1 (2.63%) Nagios
5 1 (2.63%) Oozie
5 1 (2.63%) Puppet
Vendors
1 16 (42.11%) Cloudera
2 9 (23.68%) Google
3 8 (21.05%) Hortonworks
4 3 (7.89%) Databricks
5 2 (5.26%) EMC
5 2 (5.26%) Informatica
5 2 (5.26%) Microsoft
5 2 (5.26%) NetApp
5 2 (5.26%) Pega
6 1 (2.63%) CA
6 1 (2.63%) MapR
6 1 (2.63%) Oracle
6 1 (2.63%) Splunk