Period
to 21 September 2021

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Data Science skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Data Science over the 6 months to 21 September 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.

Data Science
Central London > City of London
6 months to
21 Sep 2021
Same period 2020 Same period 2019
Rank 95 68 71
Rank change year-on-year -27 +3 +41
Contract jobs citing Data Science 81 49 224
As % of all contract jobs advertised in the City of London 2.22% 2.79% 3.61%
As % of the Processes & Methodologies category 2.45% 3.13% 3.99%
Number of daily rates quoted 45 39 190
10th Percentile £470 " £462
25th Percentile £500 £313 £513
Median daily rate (50th Percentile) £617 £450 £550
Median % change year-on-year +37.12% -18.18% -
75th Percentile £675 £600 £625
90th Percentile £700 £678 £638
Central London median daily rate £613 £450 £550
% change year-on-year +36.11% -18.18% -
Number of hourly rates quoted 4 3 2
10th Percentile £33.78 £37.05 £14.05
25th Percentile £37.94 £37.31 £17.13
Median hourly rate £41.75 £38.50 £23.50
Median % change year-on-year +8.44% +63.83% -
75th Percentile £50.50 £43.50 £31.13
90th Percentile £64.00 £46.05 £34.95
Central London median hourly rate £41.75 £38.50 £23.50
% change year-on-year +8.44% +63.83% -

Data Science is in the Processes and Methodologies 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 process or methodology skills.

All Process and Methodology Skills
City of London
Contract vacancies with a requirement for process or methodology skills 3,301 1,565 5,619
As % of all contract IT jobs advertised in the City of London 90.56% 89.07% 90.63%
Number of daily rates quoted 2,441 1,148 4,446
10th Percentile £363 £313 £338
25th Percentile £460 £417 £425
Median daily rate (50th Percentile) £550 £513 £525
Median % change year-on-year +7.32% -2.38% +3.96%
75th Percentile £650 £600 £600
90th Percentile £738 £675 £675
Central London median daily rate £550 £513 £520
% change year-on-year +7.32% -1.44% +4.00%
Number of hourly rates quoted 40 33 68
10th Percentile £11.15 £14.60 £11.25
25th Percentile £16.07 £17.50 £12.04
Median hourly rate £27.75 £35.50 £16.50
Median % change year-on-year -21.83% +115.15% -11.76%
75th Percentile £38.50 £46.00 £23.56
90th Percentile £63.25 £51.55 £45.41
Central London median hourly rate £26.00 £34.50 £19.00
% change year-on-year -24.64% +81.58% +1.60%

Data Science
Job Vacancy Trend in the City of London

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

Job vacancy trend for Data Science in the City of London

Data Science
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for Data Science in the City of London

Data Science
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Data Science in the City of London over the 6 months to 21 September 2021.

Daily rate histogram for Data Science in the City of London

Data Science
Contractor Hourly Rate Trend in the City of London

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

Hourly rate trend for Data Science in the City of London

Data Science
Hourly Rate Histogram in the City of London

Hourly rate distribution of jobs citing Data Science in the City of London over the 6 months to 21 September 2021.

Hourly rate histogram for Data Science in the City of London

For the 6 months to 21 September 2021, IT contractor jobs citing Data Science 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 Data Science.

1 66 (81.48%) Python
2 51 (62.96%) SQL
2 51 (62.96%) Analytics
3 45 (55.56%) Algorithms
4 37 (45.68%) Machine Learning
4 37 (45.68%) Degree
5 36 (44.44%) Mathematics
5 36 (44.44%) Analytical Skills
6 35 (43.21%) Statistics
7 32 (39.51%) Asset Management
8 31 (38.27%) Visualisation
9 28 (34.57%) Data Analysis
9 28 (34.57%) Marketing
9 28 (34.57%) Business Intelligence
10 27 (33.33%) Finance
10 27 (33.33%) R
11 26 (32.10%) Bayesian Methods
12 23 (28.40%) Alteryx
12 23 (28.40%) Computer Science
13 22 (27.16%) Management Information System
13 22 (27.16%) Apache Spark
14 21 (25.93%) Presentation Skills
15 20 (24.69%) Decision-Making
15 20 (24.69%) Problem-Solving
15 20 (24.69%) Data Warehouse
15 20 (24.69%) Data Modelling
15 20 (24.69%) Artificial Intelligence
15 20 (24.69%) Social Media
16 19 (23.46%) QlikView
16 19 (23.46%) Tableau

Data Science
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 22 (27.16%) Apache Spark
2 17 (20.99%) Jupyter
3 4 (4.94%) Apache
3 4 (4.94%) Apache Airflow
4 2 (2.47%) SAS
5 1 (1.23%) ArcGIS
5 1 (1.23%) SharePoint
Applications
1 18 (22.22%) Microsoft Excel
2 16 (19.75%) Microsoft PowerPoint
Cloud Services
1 14 (17.28%) Azure
2 11 (13.58%) Power Platform
3 7 (8.64%) AWS
3 7 (8.64%) GitHub
4 4 (4.94%) Azure Cosmos DB
5 3 (3.70%) Azure Data Factory
5 3 (3.70%) Azure Synapse Analytics
6 2 (2.47%) GitHub Actions
7 1 (1.23%) Collibra
7 1 (1.23%) Serverless
7 1 (1.23%) Snowflake
Database & Business Intelligence
1 20 (24.69%) Data Warehouse
2 19 (23.46%) QlikView
2 19 (23.46%) Tableau
3 16 (19.75%) Big Data
4 13 (16.05%) Hadoop
5 11 (13.58%) Power BI
6 9 (11.11%) Data Lake
6 9 (11.11%) NoSQL
7 8 (9.88%) Apache Hive
8 7 (8.64%) Data Mining
9 6 (7.41%) MongoDB
9 6 (7.41%) SQL Server
10 5 (6.17%) Apache Cassandra
10 5 (6.17%) Impala
11 4 (4.94%) Presto
12 3 (3.70%) BusinessObjects
12 3 (3.70%) Couchbase
12 3 (3.70%) SQL Server Analysis Services
12 3 (3.70%) SQL Server Integration Services
12 3 (3.70%) SQL Server Reporting Services
Development Applications
1 5 (6.17%) Git (software)
1 5 (6.17%) Jenkins
2 4 (4.94%) IBM UrbanCode
2 4 (4.94%) JIRA
2 4 (4.94%) TeamCity
3 1 (1.23%) MLflow
3 1 (1.23%) Visual Studio
3 1 (1.23%) Visual Studio Team System
General
1 36 (44.44%) Analytical Skills
2 28 (34.57%) Marketing
3 27 (33.33%) Finance
4 21 (25.93%) Presentation Skills
5 10 (12.35%) Banking
5 10 (12.35%) Social Skills
6 2 (2.47%) Financial Institution
6 2 (2.47%) Games
7 1 (1.23%) Investment Banking
7 1 (1.23%) Organisational Skills
7 1 (1.23%) Pharmaceutical
7 1 (1.23%) Prime Brokerage
7 1 (1.23%) Social Science
7 1 (1.23%) Telecoms
Job Titles
1 38 (46.91%) Data Scientist
2 19 (23.46%) Data Engineer
3 6 (7.41%) Senior Data Scientist
4 5 (6.17%) Azure Engineer
4 5 (6.17%) Developer
4 5 (6.17%) Senior Data Engineer
5 3 (3.70%) Junior
5 3 (3.70%) Junior Data Scientist
5 3 (3.70%) Python Developer
5 3 (3.70%) Senior Statistician
5 3 (3.70%) Statistician
6 2 (2.47%) Azure Architect
6 2 (2.47%) Azure DevOps Engineer
6 2 (2.47%) Big Data Engineer
6 2 (2.47%) Data Consultant
6 2 (2.47%) Data Manager
6 2 (2.47%) DevOps Architect
6 2 (2.47%) DevOps Engineer
6 2 (2.47%) Python Engineer
6 2 (2.47%) User Experience Researcher
Libraries, Frameworks & Software Standards
1 16 (19.75%) D3.js
1 16 (19.75%) Shiny
2 10 (12.35%) Kafka
3 8 (9.88%) Matplotlib
3 8 (9.88%) PyMC3
4 4 (4.94%) TensorFlow
5 2 (2.47%) .NET
5 2 (2.47%) ARM Templates
5 2 (2.47%) NumPy
5 2 (2.47%) Pandas
5 2 (2.47%) scikit-learn
6 1 (1.23%) Django
6 1 (1.23%) Flask
6 1 (1.23%) PySpark
6 1 (1.23%) SciPy
6 1 (1.23%) Velocity
Miscellaneous
1 45 (55.56%) Algorithms
2 22 (27.16%) Management Information System
3 20 (24.69%) Social Media
4 4 (4.94%) Legacy Applications
5 2 (2.47%) Data Structures
5 2 (2.47%) Hybrid Cloud
5 2 (2.47%) Linux Command Line
5 2 (2.47%) User Experience
6 1 (1.23%) Equities
6 1 (1.23%) Fixed Income
6 1 (1.23%) FMCG
6 1 (1.23%) Foreign Exchange (FX)
6 1 (1.23%) Linked Data
6 1 (1.23%) Market Risk
Operating Systems
1 3 (3.70%) VMS
2 2 (2.47%) Linux
2 2 (2.47%) Red Hat Enterprise Linux
Processes & Methodologies
1 51 (62.96%) Analytics
2 37 (45.68%) Machine Learning
3 36 (44.44%) Mathematics
4 35 (43.21%) Statistics
5 32 (39.51%) Asset Management
6 31 (38.27%) Visualisation
7 28 (34.57%) Business Intelligence
7 28 (34.57%) Data Analysis
8 26 (32.10%) Bayesian Methods
9 23 (28.40%) Computer Science
10 20 (24.69%) Artificial Intelligence
10 20 (24.69%) Data Modelling
10 20 (24.69%) Decision-Making
10 20 (24.69%) Problem-Solving
11 18 (22.22%) CRM
11 18 (22.22%) Data Sharing
11 18 (22.22%) DevOps
11 18 (22.22%) Digital Analytics
11 18 (22.22%) Investment Management
12 17 (20.99%) Deep Learning
Programming Languages
1 66 (81.48%) Python
2 51 (62.96%) SQL
3 27 (33.33%) R
4 17 (20.99%) VBA
5 12 (14.81%) Java
6 11 (13.58%) Scala
7 10 (12.35%) C++
8 5 (6.17%) C
9 3 (3.70%) Bash Shell
9 3 (3.70%) T-SQL
10 2 (2.47%) PowerShell
11 1 (1.23%) C#
Qualifications
1 37 (45.68%) Degree
2 5 (6.17%) PhD
3 1 (1.23%) Master's Degree
Quality Assurance & Compliance
1 6 (7.41%) Data Quality
2 1 (1.23%) GMP
System Software
1 7 (8.64%) Docker
Systems Management
1 4 (4.94%) Kubernetes
2 2 (2.47%) Terraform
3 1 (1.23%) Kubeflow
Vendors
1 23 (28.40%) Alteryx
2 18 (22.22%) Salesforce.com
3 4 (4.94%) IBM
3 4 (4.94%) Microsoft
4 3 (3.70%) Databricks
4 3 (3.70%) Oracle
5 2 (2.47%) Cisco
5 2 (2.47%) F5
5 2 (2.47%) Juniper
5 2 (2.47%) Red Hat
6 1 (1.23%) Dataiku
6 1 (1.23%) Informatica
6 1 (1.23%) ServiceNow