Period
to 3 March 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 March 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 Mar 2021
Same period 2020 Same period 2019
Rank 71 88 56
Rank change year-on-year +17 -32 +19
Contract jobs citing Big Data 65 118 281
As % of all contract jobs advertised in the City of London 2.87% 2.56% 4.18%
As % of the Database & Business Intelligence category 12.85% 10.97% 16.38%
Number of daily rates quoted 56 88 239
Median daily rate £575 £538 £550
Median daily rate % change year-on-year +6.98% -2.27% -4.35%
10th Percentile £413 £413 £435
90th Percentile £644 £716 £700
Central London median daily rate £565 £550 £550
% change year-on-year +2.73% - -4.35%
Number of hourly rates quoted 0 1 0
Median hourly rate - £38.50 -
Central London median hourly rate - £38.50 -

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 506 1,076 1,715
As % of all contract IT jobs advertised in the City of London 22.37% 23.36% 25.49%
Number of daily rates quoted 370 838 1,372
Median daily rate £550 £510 £537
Median daily rate % change year-on-year +7.84% -4.96% +2.21%
10th Percentile £337 £363 £400
90th Percentile £689 £675 £675
Central London median daily rate £528 £500 £525
% change year-on-year +5.50% -4.76% +2.44%
Number of hourly rates quoted 1 4 6
Median hourly rate £23.45 £25.00 £36.05
Median hourly rate % change year-on-year -6.20% -30.64% +29.89%
10th Percentile £21.73 £22.17 £26.88
90th Percentile £25.18 £35.13 £49.35
Median hourly rate £42.98 £25.00 £35.00
% change year-on-year +71.90% -28.57% +26.13%

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 March 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 March 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 +8 6 £600 +33.33%
Big Data
Central London

For the 6 months to 3 March 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 36 (55.38%) SQL
2 34 (52.31%) Python
3 33 (50.77%) AWS
3 33 (50.77%) Apache Spark
4 23 (35.38%) Hadoop
4 23 (35.38%) Data Warehouse
5 22 (33.85%) Finance
5 22 (33.85%) Analytics
6 21 (32.31%) Kafka
7 20 (30.77%) Data Lake
8 18 (27.69%) Analytical Skills
9 16 (24.62%) Java
9 16 (24.62%) Agile Software Development
10 15 (23.08%) NoSQL
11 14 (21.54%) Data Science
12 13 (20.00%) Apache Airflow
12 13 (20.00%) Cloudera
13 12 (18.46%) Machine Learning
13 12 (18.46%) DevOps
13 12 (18.46%) Data Analysis
14 11 (16.92%) Security Cleared
14 11 (16.92%) Business Intelligence
14 11 (16.92%) Data Structures
14 11 (16.92%) Azure
15 10 (15.38%) MapReduce
15 10 (15.38%) Algorithms
15 10 (15.38%) Amazon Redshift
15 10 (15.38%) HTTP
15 10 (15.38%) Data Modelling
15 10 (15.38%) Web Services

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 33 (50.77%) Apache Spark
2 13 (20.00%) Apache Airflow
3 9 (13.85%) Apache
4 3 (4.62%) SAS
Applications
1 1 (1.54%) Chatbot
1 1 (1.54%) Microsoft Office
Cloud Services
1 33 (50.77%) AWS
2 11 (16.92%) Azure
3 8 (12.31%) Amazon Kinesis
3 8 (12.31%) GCP
4 7 (10.77%) Amazon EC2
4 7 (10.77%) Power Platform
5 4 (6.15%) Amazon EMR
5 4 (6.15%) Amazon S3
5 4 (6.15%) Cloud Computing
6 1 (1.54%) Amazon Cognito
6 1 (1.54%) AWS Lambda
6 1 (1.54%) Azure Data Factory
6 1 (1.54%) Serverless
Communications & Networking
1 10 (15.38%) HTTP
2 1 (1.54%) Remote Desktop
2 1 (1.54%) SMTP
Database & Business Intelligence
1 23 (35.38%) Data Warehouse
1 23 (35.38%) Hadoop
2 20 (30.77%) Data Lake
3 15 (23.08%) NoSQL
4 10 (15.38%) Amazon Redshift
4 10 (15.38%) Snowflake Schema
5 9 (13.85%) Apache Hive
5 9 (13.85%) Relational Database
6 8 (12.31%) Parquet
7 7 (10.77%) Amazon RDS
7 7 (10.77%) Power BI
8 4 (6.15%) Spark SQL
9 2 (3.08%) Couchbase
9 2 (3.08%) Flink
9 2 (3.08%) Geospatial Data
9 2 (3.08%) Impala
9 2 (3.08%) MongoDB
9 2 (3.08%) RDBMS
9 2 (3.08%) SAS EBI
9 2 (3.08%) SQL Server Integration Services
Development Applications
1 4 (6.15%) JIRA
2 1 (1.54%) Eclipse
2 1 (1.54%) IntelliJ
2 1 (1.54%) JUnit
2 1 (1.54%) MLflow
2 1 (1.54%) SQL Server Management Studio (SSMS)
General
1 22 (33.85%) Finance
2 9 (13.85%) Banking
3 2 (3.08%) Investment Banking
3 2 (3.08%) Marketing
3 2 (3.08%) Public Sector
4 1 (1.54%) Italian Language
Job Titles
1 37 (56.92%) Data Engineer
2 14 (21.54%) AWS Engineer
3 9 (13.85%) Architect
3 9 (13.85%) Big Data Engineer
4 8 (12.31%) Developer
5 5 (7.69%) Python Engineer
6 4 (6.15%) Data Architect
6 4 (6.15%) Senior Data Engineer
7 3 (4.62%) Consultant
7 3 (4.62%) Hadoop Engineer
7 3 (4.62%) Java Developer
7 3 (4.62%) Product Manager
7 3 (4.62%) Python Developer
8 2 (3.08%) Cloud Architect
8 2 (3.08%) DevOps Developer
8 2 (3.08%) DevOps Engineer
8 2 (3.08%) Lead Architect
8 2 (3.08%) Lead DevOps
8 2 (3.08%) Lead DevOps Engineer
8 2 (3.08%) Pega Architect
Libraries, Frameworks & Software Standards
1 21 (32.31%) Kafka
2 10 (15.38%) Web Services
3 8 (12.31%) HTML
3 8 (12.31%) PostGIS
3 8 (12.31%) XML
4 7 (10.77%) PySpark
5 4 (6.15%) Spring
6 2 (3.08%) RESTful
6 2 (3.08%) Samza
7 1 (1.54%) .NET
7 1 (1.54%) Django
7 1 (1.54%) GraphX
7 1 (1.54%) MLlib
7 1 (1.54%) Natural Language Processing
7 1 (1.54%) NumPy
7 1 (1.54%) RabbitMQ
7 1 (1.54%) React
7 1 (1.54%) scikit-learn
7 1 (1.54%) Swing
7 1 (1.54%) TensorFlow
Miscellaneous
1 18 (27.69%) Analytical Skills
2 11 (16.92%) Data Structures
3 10 (15.38%) Algorithms
4 8 (12.31%) Self-Motivation
5 3 (4.62%) Analytical Mindset
5 3 (4.62%) Cloud Native
6 2 (3.08%) Grid Computing
6 2 (3.08%) Reinsurance
6 2 (3.08%) RIA
7 1 (1.54%) Credit Risk
7 1 (1.54%) Equities
7 1 (1.54%) Foreign Exchange (FX)
7 1 (1.54%) Hybrid Cloud
7 1 (1.54%) Market Risk
7 1 (1.54%) Public Cloud
7 1 (1.54%) Video\Live Streaming
7 1 (1.54%) Virtual Team
Operating Systems
1 5 (7.69%) Linux
2 1 (1.54%) Unix
2 1 (1.54%) VMS
Processes & Methodologies
1 22 (33.85%) Analytics
2 16 (24.62%) Agile Software Development
3 14 (21.54%) Data Science
4 12 (18.46%) Data Analysis
4 12 (18.46%) DevOps
4 12 (18.46%) Machine Learning
5 11 (16.92%) Business Intelligence
6 10 (15.38%) Data Modelling
6 10 (15.38%) MapReduce
7 9 (13.85%) Load Testing
8 8 (12.31%) Change Management
8 8 (12.31%) Continuous Deployment
8 8 (12.31%) ETL
8 8 (12.31%) Forensic Analysis
8 8 (12.31%) SQL Optimisation
8 8 (12.31%) Use Case
8 8 (12.31%) XML Parsing
9 7 (10.77%) Data Transformation
10 6 (9.23%) Data Analytics
10 6 (9.23%) Data Engineering
Programming Languages
1 36 (55.38%) SQL
2 34 (52.31%) Python
3 16 (24.62%) Java
4 9 (13.85%) Scala
5 2 (3.08%) Groovy
5 2 (3.08%) JavaScript
6 1 (1.54%) Bash Shell
6 1 (1.54%) C#
6 1 (1.54%) C++
6 1 (1.54%) Korn
6 1 (1.54%) Kotlin
6 1 (1.54%) PL/SQL
6 1 (1.54%) R
6 1 (1.54%) T-SQL
6 1 (1.54%) VB
6 1 (1.54%) VBA
Qualifications
1 11 (16.92%) Security Cleared
2 10 (15.38%) SC Cleared
3 2 (3.08%) Degree
4 1 (1.54%) AWS Certification
4 1 (1.54%) Master's Degree
4 1 (1.54%) PhD
Quality Assurance & Compliance
1 4 (6.15%) QA
2 1 (1.54%) Basel II
2 1 (1.54%) GDPR
2 1 (1.54%) IFRS
2 1 (1.54%) MiFID
2 1 (1.54%) Solvency II
System Software
1 5 (7.69%) Docker
2 3 (4.62%) HDFS
Systems Management
1 6 (9.23%) Terraform
2 5 (7.69%) Kubernetes
3 1 (1.54%) Ambari
3 1 (1.54%) Ansible
3 1 (1.54%) Grafana
3 1 (1.54%) Hadoop YARN
3 1 (1.54%) Kubeflow
Vendors
1 13 (20.00%) Cloudera
2 7 (10.77%) Hortonworks
3 5 (7.69%) Talend
4 4 (6.15%) Google
5 2 (3.08%) Axway
5 2 (3.08%) Informatica
5 2 (3.08%) Luciad
5 2 (3.08%) Microsoft
5 2 (3.08%) Pega
6 1 (1.54%) Databricks
6 1 (1.54%) EMC
6 1 (1.54%) NetApp
6 1 (1.54%) Oracle
6 1 (1.54%) Sybase