Period
to

The table below looks at the prevalence of the term Data Structures in contract job vacancies advertised in London. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Data Structures over the 6 months to 29 June 2022 with a comparison to the same period over 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 Structures
England > London
6 months to
29 Jun 2022
Same period 2021 Same period 2020
Rank 218 165 222
Rank change year-on-year -53 +57 +24
Contract jobs citing Data Structures 511 487 185
As % of all contract jobs advertised in London 1.30% 1.80% 1.06%
As % of the Miscellaneous category 3.74% 5.31% 3.03%
Number of daily rates quoted 355 313 125
10th Percentile £430 £404 £400
25th Percentile £524 £481 £488
Median daily rate (50th Percentile) £650 £575 £565
Median % change year-on-year +13.04% +1.77% -1.53%
75th Percentile £775 £688 £700
90th Percentile £863 £775 £770
England median daily rate £613 £575 £525
% change year-on-year +6.52% +9.52% -
Number of hourly rates quoted 1 1 1
10th Percentile - - -
25th Percentile - £36.75 £53.75
Median hourly rate £20.00 £44.50 £57.50
Median % change year-on-year -55.06% -22.61% +21.05%
75th Percentile - £52.25 £61.25
90th Percentile - - -
England median hourly rate £20.00 £25.75 £42.46
% change year-on-year -22.33% -39.36% -15.08%

Data Structures is in the General and Transferable Skills category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for generic IT skills.

All Generic Skills
London
Contract vacancies with a requirement for generic IT skills 13,668 9,177 6,113
As % of all contract IT jobs advertised in London 34.80% 33.95% 35.01%
Number of daily rates quoted 10,011 6,423 4,463
10th Percentile £400 £356 £324
25th Percentile £487 £450 £425
Median daily rate (50th Percentile) £600 £550 £535
Median % change year-on-year +9.09% +2.80% +1.90%
75th Percentile £725 £650 £650
90th Percentile £818 £745 £750
England median daily rate £550 £500 £500
% change year-on-year +10.00% - +5.26%
Number of hourly rates quoted 198 140 91
10th Percentile £18.35 £15.06 £14.28
25th Percentile £23.91 £20.00 £22.05
Median hourly rate £41.25 £32.45 £38.50
Median % change year-on-year +27.12% -15.71% +53.10%
75th Percentile £51.75 £45.56 £47.92
90th Percentile £67.50 £57.50 £53.75
England median hourly rate £26.50 £25.00 £25.00
% change year-on-year +6.00% - +19.05%

Data Structures
Job Vacancy Trend in London

Job postings citing Data Structures as a proportion of all IT jobs advertised in London.

Job vacancy trend for Data Structures in London

Data Structures
Contractor Daily Rate Trend in London

3-month moving average daily rate quoted in jobs citing Data Structures in London.

Daily rate trend for Data Structures in London

Data Structures
Daily Rate Histogram in London

Daily rate distribution for jobs citing Data Structures in London over the 6 months to 29 June 2022.

Daily rate histogram for Data Structures in London

Data Structures
Contractor Hourly Rate Trend in London

3-month moving average hourly rates quoted in jobs citing Data Structures in London.

Hourly rate trend for Data Structures in London

Data Structures
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Data Structures within the London region over the 6 months to 29 June 2022. 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
Jobs
Central London -22 48 £588 - 51
South London - 14 £550 -
West London -7 8 £413 -25.68% 11
East London -8 2 £650 +265.17% 24
Data Structures
England

For the 6 months to 29 June 2022, IT contractor jobs citing Data Structures 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 London region with a requirement for Data Structures.

1 223 (43.64%) Python
2 216 (42.27%) Agile
3 215 (42.07%) Algorithms
4 173 (33.86%) Finance
5 152 (29.75%) SQL
6 151 (29.55%) Social Skills
7 136 (26.61%) Java
8 125 (24.46%) Analytical Skills
9 115 (22.50%) Analytics
10 104 (20.35%) AWS
11 99 (19.37%) Banking
12 95 (18.59%) Azure
13 94 (18.40%) Git (software)
14 81 (15.85%) JavaScript
14 81 (15.85%) OO
15 71 (13.89%) Test Automation
16 70 (13.70%) Data Modelling
16 70 (13.70%) CI/CD
17 69 (13.50%) Problem-Solving
18 68 (13.31%) React
18 68 (13.31%) DevOps
18 68 (13.31%) Front Office
18 68 (13.31%) Multithreading
19 67 (13.11%) Microservices
20 66 (12.92%) Computer Science
21 62 (12.13%) C#
22 60 (11.74%) Kubernetes
23 59 (11.55%) Software Engineering
24 58 (11.35%) Scrum
25 56 (10.96%) Foreign Exchange (FX)

Data Structures
Co-occurring IT Skills in 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 43 (8.41%) Apache Spark
2 8 (1.57%) Confluence
3 7 (1.37%) Apache
3 7 (1.37%) Apache Airflow
3 7 (1.37%) Tomcat
4 6 (1.17%) Jupyter
4 6 (1.17%) SAS
5 4 (0.78%) Apache Pig
5 4 (0.78%) SharePoint Server
5 4 (0.78%) WebLogic
6 3 (0.59%) JBoss
6 3 (0.59%) Luigi
7 2 (0.39%) IIS
7 2 (0.39%) nginx
7 2 (0.39%) Oracle SOA Suite
7 2 (0.39%) SharePoint
8 1 (0.20%) Apache Qpid
8 1 (0.20%) MQSeries
8 1 (0.20%) Oracle Coherence
8 1 (0.20%) WebSphere
Applications
1 11 (2.15%) Microsoft Excel
2 2 (0.39%) Chatbot
2 2 (0.39%) Microsoft Office
2 2 (0.39%) Microsoft PowerPoint
3 1 (0.20%) Spreadsheet
Business Applications
1 12 (2.35%) Payment Gateway
1 12 (2.35%) Shopify
2 6 (1.17%) Sparx Enterprise Architect
3 2 (0.39%) Oracle Procure-to-Pay
3 2 (0.39%) Unit4 Business World
4 1 (0.20%) Cerner Millennium
4 1 (0.20%) NetSuite
4 1 (0.20%) Oracle EBS
4 1 (0.20%) Orchestrade
4 1 (0.20%) Quorum
4 1 (0.20%) Salesforce.com CRM
4 1 (0.20%) SAP HCM
4 1 (0.20%) Social Studio
Cloud Services
1 104 (20.35%) AWS
2 95 (18.59%) Azure
3 44 (8.61%) Serverless
4 31 (6.07%) Power Platform
5 29 (5.68%) AWS Lambda
6 27 (5.28%) GCP
7 24 (4.70%) Amazon Kinesis
8 21 (4.11%) Amazon Cognito
9 17 (3.33%) Azure Data Factory
10 14 (2.74%) Azure DevOps
10 14 (2.74%) npm
11 13 (2.54%) AWS CloudFormation
12 11 (2.15%) NuGet
12 11 (2.15%) PaaS
13 10 (1.96%) Azure Functions
13 10 (1.96%) OpenShift
13 10 (1.96%) SaaS
14 8 (1.57%) GitHub
14 8 (1.57%) Snowflake
15 7 (1.37%) Microsoft 365
Communications & Networking
1 16 (3.13%) Firewall
2 14 (2.74%) Internet
3 12 (2.35%) DMZ
3 12 (2.35%) DNS
4 10 (1.96%) TCP/IP
5 7 (1.37%) Multicast
6 6 (1.17%) HTTP
7 2 (0.39%) Kerberos
8 1 (0.20%) Broadband
8 1 (0.20%) VPN
Database & Business Intelligence
1 47 (9.20%) SQL Server
2 43 (8.41%) Relational Database
3 41 (8.02%) Big Data
4 38 (7.44%) Data Warehouse
5 35 (6.85%) NoSQL
6 30 (5.87%) PostgreSQL
7 27 (5.28%) Data Lake
8 25 (4.89%) Power BI
9 24 (4.70%) Metadata
10 19 (3.72%) MongoDB
11 17 (3.33%) Hadoop
11 17 (3.33%) MySQL
12 16 (3.13%) SQL Server Integration Services
13 15 (2.94%) RDBMS
13 15 (2.94%) Tableau
14 11 (2.15%) DynamoDB
15 10 (1.96%) BigQuery
16 9 (1.76%) Apache Cassandra
17 8 (1.57%) HBase
17 8 (1.57%) KDB
Development Applications
1 94 (18.40%) Git (software)
2 33 (6.46%) Jenkins
3 32 (6.26%) JIRA
4 27 (5.28%) TeamCity
5 20 (3.91%) webpack
6 19 (3.72%) Subversion
7 18 (3.52%) Maven
8 13 (2.54%) Babel
8 13 (2.54%) PowerDesigner
9 11 (2.15%) git-flow
9 11 (2.15%) GitLab
9 11 (2.15%) MSBuild
10 9 (1.76%) ERwin
11 7 (1.37%) Artifactory
12 6 (1.17%) JUnit
12 6 (1.17%) Mocha
13 4 (0.78%) Cucumber
13 4 (0.78%) Eclipse
13 4 (0.78%) IntelliJ
13 4 (0.78%) Pylint
General
1 173 (33.86%) Finance
2 151 (29.55%) Social Skills
3 125 (24.46%) Analytical Skills
4 99 (19.37%) Banking
5 68 (13.31%) Front Office
6 51 (9.98%) Investment Banking
7 22 (4.31%) Retail
8 13 (2.54%) Back Office
8 13 (2.54%) Legal
9 12 (2.35%) Marketing
10 9 (1.76%) Financial Institution
10 9 (1.76%) Games
10 9 (1.76%) Public Sector
11 8 (1.57%) Organisational Skills
11 8 (1.57%) Presentation Skills
12 4 (0.78%) Humanities
12 4 (0.78%) Pharmaceutical
13 3 (0.59%) Documentation Skills
14 2 (0.39%) Influencing Skills
14 2 (0.39%) Law
Job Titles
1 241 (47.16%) Developer
2 65 (12.72%) Java Developer
3 63 (12.33%) Python Developer
4 48 (9.39%) Analyst
5 47 (9.20%) Architect
6 39 (7.63%) Senior Developer
7 37 (7.24%) Business Analyst
8 31 (6.07%) Data Engineer
9 30 (5.87%) Senior Java Developer
10 28 (5.48%) Software Engineer
11 25 (4.89%) Data Architect
12 23 (4.50%) Senior Software Engineer
13 22 (4.31%) Python Engineer
14 18 (3.52%) Azure Engineer
14 18 (3.52%) React Developer
15 17 (3.33%) AWS Engineer
15 17 (3.33%) C# Developer
15 17 (3.33%) Finance Business Analyst
15 17 (3.33%) Financial Analyst
16 15 (2.94%) AWS Software Engineer
Libraries, Frameworks & Software Standards
1 68 (13.31%) React
2 48 (9.39%) Node.js
3 47 (9.20%) Kafka
4 44 (8.61%) .NET
5 34 (6.65%) CSS
5 34 (6.65%) HTML
6 28 (5.48%) RESTful
7 25 (4.89%) REST
8 22 (4.31%) jQuery
8 22 (4.31%) JSON
9 21 (4.11%) CSS3
10 20 (3.91%) FIX Protocol
11 19 (3.72%) .NET Framework
12 18 (3.52%) XML
13 17 (3.33%) AngularJS
14 16 (3.13%) Django
15 15 (2.94%) HTML5
15 15 (2.94%) Pandas
15 15 (2.94%) Spring
16 14 (2.74%) Web Services
Miscellaneous
1 215 (42.07%) Algorithms
2 56 (10.96%) Foreign Exchange (FX)
3 30 (5.87%) User Experience
4 28 (5.48%) Derivative
5 18 (3.52%) Virtual Team
6 17 (3.33%) Hedge funds
7 16 (3.13%) Cloud Native
7 16 (3.13%) Fixed Income
8 15 (2.94%) Management Information System
9 12 (2.35%) Data Protection Act
10 11 (2.15%) Contract for Difference
11 10 (1.96%) Spread Betting
12 9 (1.76%) Equities
13 7 (1.37%) Legacy Applications
13 7 (1.37%) Renewable Energy
14 6 (1.17%) Animation
14 6 (1.17%) Greenfield Project
14 6 (1.17%) Public Cloud
15 5 (0.98%) NHS
16 4 (0.78%) Credit Risk
Operating Systems
1 53 (10.37%) Linux
2 26 (5.09%) Unix
3 16 (3.13%) Windows
4 2 (0.39%) Android
4 2 (0.39%) Windows Server
5 1 (0.20%) Apple iOS
5 1 (0.20%) VMS
Processes & Methodologies
1 216 (42.27%) Agile
2 115 (22.50%) Analytics
3 81 (15.85%) OO
4 71 (13.89%) Test Automation
5 70 (13.70%) CI/CD
5 70 (13.70%) Data Modelling
6 69 (13.50%) Problem-Solving
7 68 (13.31%) DevOps
7 68 (13.31%) Multithreading
8 67 (13.11%) Microservices
9 66 (12.92%) Computer Science
10 59 (11.55%) Software Engineering
11 58 (11.35%) Scrum
12 50 (9.78%) ETL
13 45 (8.81%) Business Intelligence
14 43 (8.41%) Data Transformation
15 40 (7.83%) Full Stack Development
15 40 (7.83%) Mathematics
16 39 (7.63%) Analytical Thinking
16 39 (7.63%) Data Management
Programming Languages
1 223 (43.64%) Python
2 152 (29.75%) SQL
3 136 (26.61%) Java
4 81 (15.85%) JavaScript
5 62 (12.13%) C#
6 52 (10.18%) C++
7 38 (7.44%) TypeScript
8 32 (6.26%) Scala
9 16 (3.13%) Shell Script
10 14 (2.74%) C
10 14 (2.74%) T-SQL
11 13 (2.54%) PL/SQL
12 12 (2.35%) PHP
13 11 (2.15%) ES6
14 10 (1.96%) R
15 8 (1.57%) VBA
16 7 (1.37%) Bash
16 7 (1.37%) Go
17 5 (0.98%) Apex Code
17 5 (0.98%) Kotlin
Qualifications
1 54 (10.57%) Degree
2 26 (5.09%) Computer Science Degree
3 22 (4.31%) Numerate Degree
4 18 (3.52%) Security Cleared
5 11 (2.15%) SC Cleared
6 6 (1.17%) HND
7 3 (0.59%) DV Cleared
8 2 (0.39%) HNC
8 2 (0.39%) MCSA
8 2 (0.39%) MCSE
8 2 (0.39%) Microsoft Certification
9 1 (0.20%) BPSS Clearance
9 1 (0.20%) ISEB
9 1 (0.20%) ISTQB
9 1 (0.20%) Master's Degree
9 1 (0.20%) PhD
9 1 (0.20%) Sun Certification
Quality Assurance & Compliance
1 34 (6.65%) QA
2 24 (4.70%) Data Quality
3 12 (2.35%) PCI DSS
4 9 (1.76%) GDPR
5 8 (1.57%) Accessibility
6 1 (0.20%) IFRS
6 1 (0.20%) IFRS 9
6 1 (0.20%) ISO/IEC 27001
6 1 (0.20%) MiFID
6 1 (0.20%) PMO
System Software
1 49 (9.59%) Docker
2 6 (1.17%) HDFS
3 1 (0.20%) Active Directory
3 1 (0.20%) Oracle RAC
3 1 (0.20%) Virtual Machines
Systems Management
1 60 (11.74%) Kubernetes
2 13 (2.54%) Ansible
2 13 (2.54%) Terraform
3 7 (1.37%) Grafana
4 4 (0.78%) Puppet
5 3 (0.59%) Single Sign-On
6 2 (0.39%) HP Fortify
6 2 (0.39%) Opscode Chef
7 1 (0.20%) Ambari
7 1 (0.20%) Argo
7 1 (0.20%) Istio
7 1 (0.20%) Kibana
Vendors
1 38 (7.44%) Oracle
2 30 (5.87%) Microsoft
3 21 (4.11%) Databricks
4 20 (3.91%) Google
5 13 (2.54%) SAP
6 12 (2.35%) PayPal
6 12 (2.35%) Salesforce.com
6 12 (2.35%) WorldPay
7 8 (1.57%) Cloudera
8 7 (1.37%) Splunk
9 6 (1.17%) Informatica
9 6 (1.17%) Sparx
9 6 (1.17%) Workday
10 5 (0.98%) Sun
10 5 (0.98%) Talend
11 4 (0.78%) Alteryx
11 4 (0.78%) IBM
11 4 (0.78%) Tealium
12 3 (0.59%) ServiceNow
13 2 (0.39%) AppDynamics