Period
to 10 May 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 10 May 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
10 May 2021
Same period 2020 Same period 2019
Rank 76 70 39
Rank change year-on-year -6 -31 +33
Contract jobs citing Big Data 82 102 347
As % of all contract jobs advertised in the City of London 3.04% 2.94% 5.27%
As % of the Database & Business Intelligence category 14.29% 12.42% 20.21%
Number of daily rates quoted 60 71 291
10th Percentile £414 £406 £463
25th Percentile £480 £447 £513
Median daily rate (50th Percentile) £585 £550 £550
Median % change year-on-year +6.36% - -4.35%
75th Percentile £638 £650 £622
90th Percentile £688 £725 £700
Central London median daily rate £585 £550 £550
% change year-on-year +6.36% - -
Number of hourly rates quoted 0 2 1
Median hourly rate - £42.50 £49.13
Median % change year-on-year - -13.49% -
Central London median hourly rate - £42.50 £49.13
% change year-on-year - -13.49% -

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 574 821 1,717
As % of all contract IT jobs advertised in the City of London 21.28% 23.63% 26.07%
Number of daily rates quoted 398 619 1,361
10th Percentile £384 £363 £406
25th Percentile £450 £414 £458
Median daily rate (50th Percentile) £550 £500 £525
Median % change year-on-year +10.00% -4.76% +1.69%
75th Percentile £638 £600 £613
90th Percentile £701 £675 £675
Central London median daily rate £550 £500 £525
% change year-on-year +10.00% -4.76% +2.44%
Number of hourly rates quoted 4 5 10
Median hourly rate £8.00 £25.00 £35.00
Median % change year-on-year -68.00% -28.57% +55.56%
Central London median hourly rate £14.00 £25.00 £35.00
% change year-on-year -44.00% -28.57% +16.67%

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 10 May 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 10 May 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 - 6 £600 -
Big Data
Central London

For the 6 months to 10 May 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 41 (50.00%) Python
2 37 (45.12%) SQL
3 36 (43.90%) Apache Spark
4 33 (40.24%) AWS
5 26 (31.71%) Kafka
5 26 (31.71%) Finance
6 25 (30.49%) Analytics
6 25 (30.49%) Hadoop
7 24 (29.27%) Java
8 23 (28.05%) Data Warehouse
8 23 (28.05%) Agile Software Development
8 23 (28.05%) Data Pipeline
9 22 (26.83%) Analytical Skills
10 20 (24.39%) Data Lake
11 16 (19.51%) GCP
12 15 (18.29%) DevOps
12 15 (18.29%) Data Science
13 14 (17.07%) Apache Airflow
13 14 (17.07%) Data Modelling
14 13 (15.85%) Apache Hive
14 13 (15.85%) NoSQL
14 13 (15.85%) Social Skills
15 12 (14.63%) Machine Learning
15 12 (14.63%) MapReduce
15 12 (14.63%) Security Cleared
15 12 (14.63%) Scala
15 12 (14.63%) Apache
15 12 (14.63%) Business Intelligence
15 12 (14.63%) Banking
15 12 (14.63%) Data Analysis

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 (43.90%) Apache Spark
2 14 (17.07%) Apache Airflow
3 12 (14.63%) Apache
4 2 (2.44%) Confluence
4 2 (2.44%) Elasticsearch
4 2 (2.44%) SAS
5 1 (1.22%) Oracle SOA Suite
5 1 (1.22%) SharePoint
Applications
1 1 (1.22%) Microsoft Office
1 1 (1.22%) SPSS
Business Applications
1 1 (1.22%) Oracle BPM
1 1 (1.22%) SAP MDG
1 1 (1.22%) SAP MDM
Cloud Services
1 33 (40.24%) AWS
2 16 (19.51%) GCP
3 8 (9.76%) Amazon Kinesis
3 8 (9.76%) Azure
4 7 (8.54%) Amazon EC2
5 6 (7.32%) Power Platform
6 3 (3.66%) Amazon EMR
6 3 (3.66%) Cloud Computing
6 3 (3.66%) Serverless
7 2 (2.44%) Amazon S3
8 1 (1.22%) Amazon Cognito
8 1 (1.22%) AWS Lambda
8 1 (1.22%) Azure Data Factory
8 1 (1.22%) Azure Synapse Analytics
Communications & Networking
1 10 (12.20%) HTTP
2 1 (1.22%) Firewall
2 1 (1.22%) Remote Desktop
2 1 (1.22%) SMTP
Database & Business Intelligence
1 25 (30.49%) Hadoop
2 23 (28.05%) Data Warehouse
3 20 (24.39%) Data Lake
4 13 (15.85%) Apache Hive
4 13 (15.85%) NoSQL
5 11 (13.41%) Relational Database
6 10 (12.20%) Amazon Redshift
6 10 (12.20%) Snowflake Schema
7 9 (10.98%) BigQuery
8 8 (9.76%) Amazon RDS
8 8 (9.76%) Parquet
9 7 (8.54%) MongoDB
10 6 (7.32%) Power BI
11 5 (6.10%) PostgreSQL
12 4 (4.88%) Bigtable
12 4 (4.88%) Spark SQL
13 3 (3.66%) Flink
13 3 (3.66%) Looker
14 2 (2.44%) Couchbase
14 2 (2.44%) Impala
Development Applications
1 6 (7.32%) JIRA
2 2 (2.44%) GitLab
2 2 (2.44%) Jenkins
3 1 (1.22%) Eclipse
3 1 (1.22%) ERwin
3 1 (1.22%) IntelliJ
3 1 (1.22%) JUnit
3 1 (1.22%) Oracle APEX
3 1 (1.22%) SQL Server Management Studio (SSMS)
General
1 26 (31.71%) Finance
2 22 (26.83%) Analytical Skills
3 13 (15.85%) Social Skills
4 12 (14.63%) Banking
5 3 (3.66%) Organisational Skills
5 3 (3.66%) Public Sector
6 2 (2.44%) Investment Banking
6 2 (2.44%) Pharmaceutical
6 2 (2.44%) Presentation Skills
7 1 (1.22%) Front Office
Job Titles
1 40 (48.78%) Data Engineer
2 14 (17.07%) AWS Engineer
3 13 (15.85%) Big Data Engineer
4 12 (14.63%) Architect
5 8 (9.76%) Developer
6 7 (8.54%) Data Architect
7 5 (6.10%) Python Engineer
7 5 (6.10%) Senior Data Engineer
8 4 (4.88%) Data Modeller
8 4 (4.88%) Data Scientist
8 4 (4.88%) Java Developer
9 3 (3.66%) Cloud Architect
9 3 (3.66%) Consultant
9 3 (3.66%) Hadoop Engineer
9 3 (3.66%) Platform Architect
9 3 (3.66%) Product Manager
10 2 (2.44%) Cloud Engineer
10 2 (2.44%) Delivery Manager
10 2 (2.44%) DevOps Developer
10 2 (2.44%) Senior Data Scientist
Libraries, Frameworks & Software Standards
1 26 (31.71%) Kafka
2 10 (12.20%) Web Services
3 8 (9.76%) HTML
3 8 (9.76%) PostGIS
3 8 (9.76%) PySpark
3 8 (9.76%) XML
4 7 (8.54%) Spring
5 3 (3.66%) RabbitMQ
5 3 (3.66%) Samza
6 2 (2.44%) Apache NiFi
6 2 (2.44%) RESTful
6 2 (2.44%) TensorFlow
7 1 (1.22%) .NET
7 1 (1.22%) Django
7 1 (1.22%) GraphX
7 1 (1.22%) MLlib
7 1 (1.22%) NumPy
7 1 (1.22%) React
7 1 (1.22%) scikit-learn
7 1 (1.22%) Swing
Miscellaneous
1 11 (13.41%) Algorithms
2 10 (12.20%) Data Structures
3 8 (9.76%) Self-Motivation
4 3 (3.66%) Analytical Mindset
4 3 (3.66%) Cloud Native
4 3 (3.66%) Market Risk
5 2 (2.44%) Grid Computing
5 2 (2.44%) Reinsurance
5 2 (2.44%) RIA
5 2 (2.44%) Virtual Team
6 1 (1.22%) Credit Risk
6 1 (1.22%) Equities
6 1 (1.22%) Foreign Exchange (FX)
6 1 (1.22%) Greenfield Project
6 1 (1.22%) Hybrid Cloud
6 1 (1.22%) Life Science
6 1 (1.22%) Public Cloud
6 1 (1.22%) Video\Live Streaming
Operating Systems
1 4 (4.88%) Linux
2 1 (1.22%) Unix
Processes & Methodologies
1 25 (30.49%) Analytics
2 23 (28.05%) Agile Software Development
2 23 (28.05%) Data Pipeline
3 15 (18.29%) Data Science
3 15 (18.29%) DevOps
4 14 (17.07%) Data Modelling
5 12 (14.63%) Business Intelligence
5 12 (14.63%) Data Analysis
5 12 (14.63%) Machine Learning
5 12 (14.63%) MapReduce
6 9 (10.98%) Artificial Intelligence
6 9 (10.98%) ETL
6 9 (10.98%) Load Testing
7 8 (9.76%) Change Management
7 8 (9.76%) Continuous Deployment
7 8 (9.76%) Forensic Analysis
7 8 (9.76%) SQL Optimisation
7 8 (9.76%) Use Case
7 8 (9.76%) XML Parsing
8 7 (8.54%) Data Engineering
Programming Languages
1 41 (50.00%) Python
2 37 (45.12%) SQL
3 24 (29.27%) Java
4 12 (14.63%) Scala
5 3 (3.66%) C++
5 3 (3.66%) R
6 2 (2.44%) Groovy
6 2 (2.44%) JavaScript
7 1 (1.22%) Bash Shell
7 1 (1.22%) C
7 1 (1.22%) C#
7 1 (1.22%) Korn
7 1 (1.22%) Kotlin
7 1 (1.22%) PL/SQL
7 1 (1.22%) T-SQL
7 1 (1.22%) VB
7 1 (1.22%) VBA
Qualifications
1 12 (14.63%) Security Cleared
2 11 (13.41%) SC Cleared
3 3 (3.66%) Degree
4 2 (2.44%) DV Cleared
5 1 (1.22%) AWS Certification
5 1 (1.22%) Master's Degree
Quality Assurance & Compliance
1 4 (4.88%) QA
2 2 (2.44%) Data Quality
3 1 (1.22%) Basel II
System Software
1 10 (12.20%) Docker
2 2 (2.44%) HDFS
Systems Management
1 11 (13.41%) Kubernetes
2 5 (6.10%) Terraform
3 2 (2.44%) Ansible
4 1 (1.22%) Ambari
4 1 (1.22%) Grafana
4 1 (1.22%) Hadoop YARN
Vendors
1 11 (13.41%) Cloudera
2 7 (8.54%) Google
3 6 (7.32%) Hortonworks
3 6 (7.32%) Oracle
3 6 (7.32%) Talend
4 2 (2.44%) Axway
4 2 (2.44%) Databricks
4 2 (2.44%) Luciad
4 2 (2.44%) Microsoft
5 1 (1.22%) Cognos
5 1 (1.22%) IBM
5 1 (1.22%) Informatica
5 1 (1.22%) SAP
5 1 (1.22%) Sybase