Period
to 3 August 2021

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 3 August 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.

Big Data
Central London > City of London
6 months to
3 Aug 2021
Same period 2020 Same period 2019
Rank 82 63 45
Rank change year-on-year -19 -18 +20
Contract jobs citing Big Data 91 76 307
As % of all contract jobs advertised in the City of London 2.65% 3.30% 4.67%
As % of the Database & Business Intelligence category 12.15% 12.95% 17.26%
Number of daily rates quoted 60 56 262
10th Percentile £419 £413 £450
25th Percentile £521 £449 £513
Median daily rate (50th Percentile) £600 £531 £550
Median % change year-on-year +12.94% -3.41% -4.35%
75th Percentile £675 £600 £625
90th Percentile £725 £701 £700
Central London median daily rate £600 £550 £550
% change year-on-year +9.09% - -2.22%
Number of hourly rates quoted 0 2 2
Median hourly rate - £42.50 £46.85
Median % change year-on-year - -9.28% -
Central London median hourly rate - £42.50 £46.85
% change year-on-year - -9.28% -

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 749 587 1,779
As % of all contract IT jobs advertised in the City of London 21.80% 25.47% 27.07%
Number of daily rates quoted 517 434 1,416
10th Percentile £406 £375 £391
25th Percentile £463 £431 £456
Median daily rate (50th Percentile) £550 £518 £525
Median % change year-on-year +6.28% -1.43% -
75th Percentile £650 £603 £613
90th Percentile £721 £688 £678
Central London median daily rate £550 £525 £525
% change year-on-year +4.76% - -
Number of hourly rates quoted 7 7 12
Median hourly rate £8.00 £37.50 £35.00
Median % change year-on-year -78.67% +7.14% +59.09%
Central London median hourly rate £14.00 £37.50 £35.00
% change year-on-year -62.67% +7.14% +55.56%

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 3 August 2021.

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

Big Data
Contract Job Locations in the City of London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Big Data within the City of London region over the 6 months to 3 August 2021. 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
London Bridge - 5 £600 -
Big Data
Central London

For the 6 months to 3 August 2021, 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 39 (42.86%) Python
2 36 (39.56%) Apache Spark
3 32 (35.16%) SQL
4 31 (34.07%) Finance
5 26 (28.57%) AWS
6 24 (26.37%) Kafka
6 24 (26.37%) Analytics
6 24 (26.37%) Agile Software Development
7 22 (24.18%) Java
8 21 (23.08%) Banking
9 20 (21.98%) Scala
9 20 (21.98%) Apache Hive
10 19 (20.88%) Hadoop
10 19 (20.88%) GCP
11 18 (19.78%) DevOps
12 17 (18.68%) Algorithms
12 17 (18.68%) Social Skills
13 16 (17.58%) Data Modelling
14 15 (16.48%) Artificial Intelligence
14 15 (16.48%) Data Pipeline
14 15 (16.48%) Data Science
15 14 (15.38%) ETL
15 14 (15.38%) Data Warehouse
15 14 (15.38%) Machine Learning
16 13 (14.29%) MongoDB
16 13 (14.29%) Docker
16 13 (14.29%) Kubernetes
17 12 (13.19%) Cloudera
17 12 (13.19%) Business Intelligence
18 11 (12.09%) Analytical Skills

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 36 (39.56%) Apache Spark
2 8 (8.79%) Apache
3 6 (6.59%) Apache Airflow
4 4 (4.40%) Elasticsearch
5 2 (2.20%) Confluence
6 1 (1.10%) Apache Solr
6 1 (1.10%) Oracle SOA Suite
6 1 (1.10%) SAS
6 1 (1.10%) SharePoint
Applications
1 1 (1.10%) SPSS
Business Applications
1 1 (1.10%) Oracle BPM
1 1 (1.10%) SAP MDG
1 1 (1.10%) SAP MDM
Cloud Services
1 26 (28.57%) AWS
2 19 (20.88%) GCP
3 10 (10.99%) Azure
4 6 (6.59%) Power Platform
5 4 (4.40%) Amazon Kinesis
6 3 (3.30%) Amazon EMR
6 3 (3.30%) IaaS
6 3 (3.30%) PaaS
6 3 (3.30%) Serverless
6 3 (3.30%) Snowflake
7 2 (2.20%) Amazon EC2
7 2 (2.20%) Amazon S3
8 1 (1.10%) Amazon SQS
8 1 (1.10%) AWS CloudFormation
8 1 (1.10%) AWS Step Functions
8 1 (1.10%) Azure Cosmos DB
8 1 (1.10%) Azure Data Factory
8 1 (1.10%) Cloud Computing
8 1 (1.10%) Datadog
8 1 (1.10%) Virtual Private Cloud
Communications & Networking
1 3 (3.30%) HTTP
2 1 (1.10%) Firewall
2 1 (1.10%) SAN
Database & Business Intelligence
1 20 (21.98%) Apache Hive
2 19 (20.88%) Hadoop
3 14 (15.38%) Data Warehouse
4 13 (14.29%) MongoDB
5 10 (10.99%) BigQuery
6 8 (8.79%) Data Lake
7 7 (7.69%) SQL Server
8 6 (6.59%) NoSQL
8 6 (6.59%) Power BI
8 6 (6.59%) Relational Database
9 5 (5.49%) PostgreSQL
10 4 (4.40%) Bigtable
10 4 (4.40%) Looker
11 3 (3.30%) Flink
11 3 (3.30%) Parquet
12 2 (2.20%) Amazon Redshift
12 2 (2.20%) Couchbase
12 2 (2.20%) Impala
12 2 (2.20%) Metadata
12 2 (2.20%) Oracle Database
Development Applications
1 8 (8.79%) Jenkins
2 4 (4.40%) IBM UrbanCode
2 4 (4.40%) TeamCity
3 3 (3.30%) Git (software)
4 2 (2.20%) GitLab
4 2 (2.20%) Grunt
4 2 (2.20%) gulp
4 2 (2.20%) Jasmine
4 2 (2.20%) JIRA
4 2 (2.20%) PhantomJS
4 2 (2.20%) webpack
5 1 (1.10%) Bitbucket
5 1 (1.10%) ERwin
5 1 (1.10%) Hudson
5 1 (1.10%) MLflow
5 1 (1.10%) Oracle APEX
5 1 (1.10%) Subversion
General
1 31 (34.07%) Finance
2 21 (23.08%) Banking
3 17 (18.68%) Social Skills
4 11 (12.09%) Analytical Skills
5 4 (4.40%) Public Sector
6 3 (3.30%) Presentation Skills
7 2 (2.20%) Organisational Skills
7 2 (2.20%) Pharmaceutical
8 1 (1.10%) Documentation Skills
8 1 (1.10%) Front Office
8 1 (1.10%) Investment Banking
8 1 (1.10%) Marketing
Job Titles
1 30 (32.97%) Data Engineer
2 16 (17.58%) Architect
3 15 (16.48%) Developer
4 9 (9.89%) Big Data Engineer
5 8 (8.79%) Data Architect
6 6 (6.59%) Data Scientist
7 5 (5.49%) Java Developer
8 4 (4.40%) Data Modeller
8 4 (4.40%) Python Developer
9 3 (3.30%) AWS Engineer
9 3 (3.30%) Big Data Developer
9 3 (3.30%) Cloud Architect
9 3 (3.30%) Delivery Manager
9 3 (3.30%) Python Engineer
9 3 (3.30%) Senior Data Scientist
9 3 (3.30%) Senior Developer
9 3 (3.30%) Senior Java Developer
9 3 (3.30%) Technical Manager
10 2 (2.20%) IoT Architect
10 2 (2.20%) Senior Data Engineer
Libraries, Frameworks & Software Standards
1 24 (26.37%) Kafka
2 11 (12.09%) PySpark
3 8 (8.79%) Web Services
4 7 (7.69%) Spring
5 6 (6.59%) HTML
6 3 (3.30%) AngularJS
6 3 (3.30%) Apache NiFi
6 3 (3.30%) CSS
6 3 (3.30%) PostGIS
6 3 (3.30%) React
6 3 (3.30%) Samza
6 3 (3.30%) TensorFlow
6 3 (3.30%) XML
7 2 (2.20%) Apache Avro
7 2 (2.20%) Jest
7 2 (2.20%) NumPy
7 2 (2.20%) RabbitMQ
7 2 (2.20%) Sass
7 2 (2.20%) scikit-learn
7 2 (2.20%) Vue.js
Miscellaneous
1 17 (18.68%) Algorithms
2 7 (7.69%) Data Structures
3 5 (5.49%) Legacy Applications
3 5 (5.49%) Market Risk
4 3 (3.30%) Greenfield Project
4 3 (3.30%) Hybrid Cloud
4 3 (3.30%) Legacy Systems
4 3 (3.30%) Self-Motivation
4 3 (3.30%) Virtual Team
5 2 (2.20%) Cloud Native
5 2 (2.20%) Reinsurance
6 1 (1.10%) Data Centre
6 1 (1.10%) Fixed Income
6 1 (1.10%) Life Science
6 1 (1.10%) Public Cloud
6 1 (1.10%) Replication
6 1 (1.10%) Social Media
Operating Systems
1 5 (5.49%) Linux
2 3 (3.30%) VMS
3 2 (2.20%) Red Hat Enterprise Linux
3 2 (2.20%) Unix
Processes & Methodologies
1 24 (26.37%) Agile Software Development
1 24 (26.37%) Analytics
2 18 (19.78%) DevOps
3 16 (17.58%) Data Modelling
4 15 (16.48%) Artificial Intelligence
4 15 (16.48%) Data Pipeline
4 15 (16.48%) Data Science
5 14 (15.38%) ETL
5 14 (15.38%) Machine Learning
6 12 (13.19%) Business Intelligence
7 9 (9.89%) Microservices
8 8 (8.79%) Software Engineering
8 8 (8.79%) Visualisation
9 7 (7.69%) Data Analysis
9 7 (7.69%) Data Analytics
9 7 (7.69%) MapReduce
9 7 (7.69%) Migration
10 6 (6.59%) Continuous Integration
10 6 (6.59%) Logical Data Model
10 6 (6.59%) Physical Data Model
Programming Languages
1 39 (42.86%) Python
2 32 (35.16%) SQL
3 22 (24.18%) Java
4 20 (21.98%) Scala
5 5 (5.49%) JavaScript
6 4 (4.40%) C
7 3 (3.30%) Bash Shell
7 3 (3.30%) C++
7 3 (3.30%) R
8 2 (2.20%) ES6
9 1 (1.10%) C#
9 1 (1.10%) Kotlin
9 1 (1.10%) Perl
9 1 (1.10%) PHP
9 1 (1.10%) PL/SQL
9 1 (1.10%) Ruby
9 1 (1.10%) Shell Script
9 1 (1.10%) TypeScript
Qualifications
1 6 (6.59%) Degree
2 4 (4.40%) SC Cleared
2 4 (4.40%) Security Cleared
3 2 (2.20%) DV Cleared
4 1 (1.10%) AWS Certification
4 1 (1.10%) Computer Science Degree
4 1 (1.10%) Master's Degree
4 1 (1.10%) OCP
4 1 (1.10%) Oracle Certification
4 1 (1.10%) TOGAF Certification
Quality Assurance & Compliance
1 3 (3.30%) Data Quality
2 1 (1.10%) GDPR
2 1 (1.10%) PMO
2 1 (1.10%) QA
System Software
1 13 (14.29%) Docker
2 2 (2.20%) VMware Infrastructure
3 1 (1.10%) HDFS
3 1 (1.10%) Oracle RAC
Systems Management
1 13 (14.29%) Kubernetes
2 5 (5.49%) Terraform
3 4 (4.40%) Ansible
4 2 (2.20%) Ambari
4 2 (2.20%) Opscode Chef
5 1 (1.10%) Data Guard
5 1 (1.10%) Grafana
5 1 (1.10%) Hadoop YARN
5 1 (1.10%) Kubeflow
5 1 (1.10%) Oracle RMAN
Vendors
1 12 (13.19%) Cloudera
2 10 (10.99%) Google
3 9 (9.89%) Hortonworks
4 8 (8.79%) Oracle
5 5 (5.49%) IBM
6 4 (4.40%) Databricks
7 3 (3.30%) Microsoft
8 2 (2.20%) Axway
8 2 (2.20%) Confluent
8 2 (2.20%) Red Hat
8 2 (2.20%) SAP
8 2 (2.20%) VMware
9 1 (1.10%) Ab Initio
9 1 (1.10%) Cognizant
9 1 (1.10%) Cognos
9 1 (1.10%) Dell
9 1 (1.10%) EMC
9 1 (1.10%) HP
9 1 (1.10%) Informatica
9 1 (1.10%) Sybase