Period
to 27 January 2022

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 27 January 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
27 Jan 2022
Same period 2021 Same period 2020
Rank 198 208 241
Rank change year-on-year +10 +33 +11
Contract jobs citing Data Structures 525 214 324
As % of all contract jobs advertised in London 1.40% 1.19% 1.09%
As % of the Miscellaneous category 4.14% 3.38% 3.49%
Number of daily rates quoted 380 133 206
10th Percentile £463 £413 £363
25th Percentile £550 £450 £450
Median daily rate (50th Percentile) £638 £550 £550
Median % change year-on-year +15.91% - -1.79%
75th Percentile £788 £650 £638
90th Percentile £932 £763 £725
England median daily rate £600 £525 £520
% change year-on-year +14.29% +0.96% +4.00%

Data Structures is in the Generic IT 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 IT Skills
London
Contract vacancies with a requirement for generic IT skills 12,693 6,335 9,288
As % of all contract IT jobs advertised in London 33.75% 35.33% 31.22%
Number of daily rates quoted 9,394 4,555 6,650
10th Percentile £375 £314 £300
25th Percentile £475 £413 £413
Median daily rate (50th Percentile) £575 £525 £525
Median % change year-on-year +9.52% - -
75th Percentile £700 £638 £625
90th Percentile £788 £725 £713
England median daily rate £540 £475 £475
% change year-on-year +13.68% - -
Number of hourly rates quoted 168 90 120
10th Percentile £19.25 £14.91 £12.44
25th Percentile £24.50 £22.50 £16.49
Median hourly rate £43.74 £28.44 £22.03
Median % change year-on-year +53.82% +29.07% -4.22%
75th Percentile £52.00 £46.00 £36.70
90th Percentile £64.13 £60.00 £52.25
England median hourly rate £25.77 £26.50 £20.50
% change year-on-year -2.77% +29.27% +1.23%

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 27 January 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 27 January 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 -34 40 £750 +29.03% 64
West London -26 10 £550 -8.33% 15
South London - 10 £775 - 3
East London - 2 £613 - 17
Data Structures
England

For the 6 months to 27 January 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.

1 218 (41.52%) Java
1 218 (41.52%) Agile Software Development
2 180 (34.29%) Algorithms
3 179 (34.10%) Finance
4 153 (29.14%) Python
5 150 (28.57%) SQL
6 134 (25.52%) Banking
7 126 (24.00%) Social Skills
8 123 (23.43%) Analytical Skills
9 105 (20.00%) Multithreading
10 94 (17.90%) Investment Banking
10 94 (17.90%) Foreign Exchange (FX)
11 92 (17.52%) Front Office
12 89 (16.95%) DevOps
13 85 (16.19%) Azure
14 84 (16.00%) Analytics
15 83 (15.81%) Performance Tuning
16 82 (15.62%) OO
17 76 (14.48%) Low Latency
18 75 (14.29%) AWS
19 74 (14.10%) Git (software)
20 72 (13.71%) JavaScript
20 72 (13.71%) C#
20 72 (13.71%) Problem-Solving
21 66 (12.57%) Algorithmic Trading
22 64 (12.19%) C++
23 61 (11.62%) Data Modelling
24 58 (11.05%) CI/CD
25 54 (10.29%) Derivative
26 53 (10.10%) Scrum

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 16 (3.05%) Apache Spark
1 16 (3.05%) Elasticsearch
2 9 (1.71%) Ethereum
3 8 (1.52%) Apache Airflow
4 6 (1.14%) Apache
4 6 (1.14%) BizTalk Server
4 6 (1.14%) Confluence
5 4 (0.76%) Hyperledger
5 4 (0.76%) IIS
5 4 (0.76%) nginx
5 4 (0.76%) Oracle Coherence
6 3 (0.57%) CMS
6 3 (0.57%) JBoss
6 3 (0.57%) Jupyter
6 3 (0.57%) Oracle SOA Suite
6 3 (0.57%) SAS
6 3 (0.57%) Tomcat
7 2 (0.38%) Adobe Experience Manager
7 2 (0.38%) Headless CMS
7 2 (0.38%) SharePoint
Applications
1 7 (1.33%) Microsoft Excel
2 2 (0.38%) Microsoft PowerPoint
2 2 (0.38%) Oracle Smart View
3 1 (0.19%) MS Visio
3 1 (0.19%) SPSS
Business Applications
1 8 (1.52%) Payment Gateway
1 8 (1.52%) Shopify
2 5 (0.95%) Dynamics CRM
3 3 (0.57%) Cerner Millennium
3 3 (0.57%) Distributed Ledger
3 3 (0.57%) SAP S/4HANA
4 2 (0.38%) Dynamics AX
4 2 (0.38%) R3 Corda
5 1 (0.19%) Elite 3E
5 1 (0.19%) Oracle ERP
5 1 (0.19%) SAP CO
5 1 (0.19%) SAP Oil and Gas
Cloud Services
1 85 (16.19%) Azure
2 75 (14.29%) AWS
3 26 (4.95%) Power Platform
3 26 (4.95%) Serverless
4 22 (4.19%) GCP
5 14 (2.67%) Azure Data Factory
5 14 (2.67%) npm
6 12 (2.29%) AWS Lambda
6 12 (2.29%) Datadog
7 11 (2.10%) Amazon Kinesis
7 11 (2.10%) AWS CloudFormation
7 11 (2.10%) PaaS
8 9 (1.71%) Cloud Computing
9 7 (1.33%) Amazon CloudWatch
9 7 (1.33%) Azure Functions
10 5 (0.95%) Amazon Cognito
10 5 (0.95%) AWS KMS
10 5 (0.95%) Azure Stack
10 5 (0.95%) Dynamics 365
10 5 (0.95%) Snowflake
Communications & Networking
1 11 (2.10%) Firewall
1 11 (2.10%) TCP/IP
2 10 (1.90%) Multicast
3 9 (1.71%) Internet
4 8 (1.52%) DMZ
4 8 (1.52%) DNS
5 2 (0.38%) HTTP
5 2 (0.38%) Peer-to-Peer Networking
5 2 (0.38%) SSL
6 1 (0.19%) AMQP
6 1 (0.19%) HTTPS
6 1 (0.19%) Kerberos
6 1 (0.19%) Network Security
6 1 (0.19%) PuTTY
Database & Business Intelligence
1 41 (7.81%) Relational Database
2 36 (6.86%) SQL Server
3 32 (6.10%) Big Data
4 30 (5.71%) Data Warehouse
5 26 (4.95%) NoSQL
6 24 (4.57%) Power BI
7 21 (4.00%) Data Lake
7 21 (4.00%) PostgreSQL
8 17 (3.24%) Blockchain
8 17 (3.24%) SQL Server Integration Services
9 16 (3.05%) Hadoop
9 16 (3.05%) Metadata
10 15 (2.86%) RDBMS
11 12 (2.29%) BigQuery
12 11 (2.10%) MySQL
13 10 (1.90%) Azure SQL Database
13 10 (1.90%) MongoDB
13 10 (1.90%) Tableau
14 9 (1.71%) Amazon DynamoDB
14 9 (1.71%) Apache Cassandra
Development Applications
1 74 (14.10%) Git (software)
2 35 (6.67%) Maven
3 33 (6.29%) Jenkins
4 31 (5.90%) JIRA
5 26 (4.95%) Subversion
6 19 (3.62%) webpack
7 17 (3.24%) Artifactory
8 14 (2.67%) SpecFlow
9 13 (2.48%) Selenium
10 8 (1.52%) gulp
10 8 (1.52%) Mocha
11 7 (1.33%) Babel
12 6 (1.14%) Grunt
12 6 (1.14%) Jasmine
12 6 (1.14%) PhantomJS
12 6 (1.14%) Sinon.JS
12 6 (1.14%) TeamCity
13 5 (0.95%) ERwin
14 4 (0.76%) Bitbucket
14 4 (0.76%) Mercurial
General
1 179 (34.10%) Finance
2 134 (25.52%) Banking
3 126 (24.00%) Social Skills
4 123 (23.43%) Analytical Skills
5 94 (17.90%) Investment Banking
6 92 (17.52%) Front Office
7 30 (5.71%) Organisational Skills
8 18 (3.43%) Retail
9 15 (2.86%) Games
10 8 (1.52%) Marketing
10 8 (1.52%) Public Sector
11 7 (1.33%) Documentation Skills
12 6 (1.14%) Presentation Skills
12 6 (1.14%) Publishing
13 4 (0.76%) Influencing Skills
14 3 (0.57%) Advertising
14 3 (0.57%) General Ledger
14 3 (0.57%) Manufacturing
15 2 (0.38%) Law
15 2 (0.38%) Legal
Job Titles
1 242 (46.10%) Developer
2 104 (19.81%) Java Developer
3 77 (14.67%) Analyst
4 61 (11.62%) Senior Developer
5 49 (9.33%) Senior Java Developer
6 45 (8.57%) Architect
7 41 (7.81%) Business Analyst
8 37 (7.05%) Data Engineer
8 37 (7.05%) Python Developer
9 34 (6.48%) Core Java Developer
10 29 (5.52%) Consultant
11 24 (4.57%) Java Consultant
12 21 (4.00%) Quantitative Developer
13 20 (3.81%) SQL Analyst
14 19 (3.62%) Data Analyst
14 19 (3.62%) Electronic Trading Developer
15 18 (3.43%) Data Architect
15 18 (3.43%) Software Engineer
16 16 (3.05%) React Developer
17 15 (2.86%) Investment Banking Java Developer
Libraries, Frameworks & Software Standards
1 50 (9.52%) React
1 50 (9.52%) RESTful
2 42 (8.00%) Node.js
3 39 (7.43%) .NET
4 38 (7.24%) REST
5 34 (6.48%) JSON
6 32 (6.10%) HTML
7 28 (5.33%) CSS
8 26 (4.95%) Middleware
9 24 (4.57%) FIX Protocol
10 22 (4.19%) Kafka
11 21 (4.00%) Web Services
12 20 (3.81%) XML
13 16 (3.05%) AngularJS
14 15 (2.86%) Apache Avro
14 15 (2.86%) Spring
15 14 (2.67%) Apache NiFi
16 13 (2.48%) Redux
17 12 (2.29%) GraphQL
17 12 (2.29%) Jest
Miscellaneous
1 180 (34.29%) Algorithms
2 94 (17.90%) Foreign Exchange (FX)
3 54 (10.29%) Derivative
4 33 (6.29%) User Experience
5 31 (5.90%) Fixed Income
6 20 (3.81%) Equities
7 15 (2.86%) Management Information System
7 15 (2.86%) Virtual Team
8 12 (2.29%) Contract for Difference
8 12 (2.29%) Spread Betting
9 11 (2.10%) Cloud Native
9 11 (2.10%) Renewable Energy
10 9 (1.71%) Legacy Systems
11 7 (1.33%) Greenfield Project
12 6 (1.14%) Enterprise Software
13 5 (0.95%) CMDB
14 4 (0.76%) Data Protection Act
14 4 (0.76%) Legacy Applications
14 4 (0.76%) Linux Command Line
14 4 (0.76%) Self-Motivation
Operating Systems
1 50 (9.52%) Linux
2 30 (5.71%) Unix
3 25 (4.76%) Windows
4 3 (0.57%) Android
4 3 (0.57%) Apple iOS
5 2 (0.38%) Red Hat Enterprise Linux
6 1 (0.19%) Mac OS X
6 1 (0.19%) Windows Server
Processes & Methodologies
1 218 (41.52%) Agile Software Development
2 105 (20.00%) Multithreading
3 89 (16.95%) DevOps
4 84 (16.00%) Analytics
5 83 (15.81%) Performance Tuning
6 82 (15.62%) OO
7 76 (14.48%) Low Latency
8 72 (13.71%) Problem-Solving
9 66 (12.57%) Algorithmic Trading
10 61 (11.62%) Data Modelling
11 58 (11.05%) CI/CD
12 53 (10.10%) Electronic Trading
12 53 (10.10%) Scrum
13 50 (9.52%) Software Engineering
13 50 (9.52%) Test Automation
14 48 (9.14%) API Design
15 47 (8.95%) API Development
16 46 (8.76%) Computer Science
17 44 (8.38%) Business Intelligence
17 44 (8.38%) OOD
Programming Languages
1 218 (41.52%) Java
2 153 (29.14%) Python
3 150 (28.57%) SQL
4 72 (13.71%) C#
4 72 (13.71%) JavaScript
5 64 (12.19%) C++
6 41 (7.81%) Java 8
7 29 (5.52%) Scala
7 29 (5.52%) TypeScript
8 19 (3.62%) ES6
9 14 (2.67%) PHP
9 14 (2.67%) Shell Script
10 12 (2.29%) Bash
11 8 (1.52%) Apex Code
12 7 (1.33%) Go
12 7 (1.33%) PL/SQL
13 6 (1.14%) PowerShell
13 6 (1.14%) SOQL
14 4 (0.76%) T-SQL
15 3 (0.57%) Ruby
Qualifications
1 25 (4.76%) Degree
2 20 (3.81%) Security Cleared
3 16 (3.05%) PhD
4 15 (2.86%) SC Cleared
5 13 (2.48%) Computer Science Degree
6 10 (1.90%) Numerate Degree
7 9 (1.71%) DV Cleared
8 1 (0.19%) DBS Check
Quality Assurance & Compliance
1 49 (9.33%) QA
2 26 (4.95%) Data Quality
3 13 (2.48%) Accessibility
4 8 (1.52%) PCI DSS
5 2 (0.38%) COBIT
5 2 (0.38%) NIST
6 1 (0.19%) GDPR
6 1 (0.19%) ISO 20022
6 1 (0.19%) MiFID
6 1 (0.19%) SEPA
6 1 (0.19%) SLA
System Software
1 46 (8.76%) Docker
2 3 (0.57%) Apache Flume
3 1 (0.19%) Active Directory
3 1 (0.19%) LXC
Systems Management
1 34 (6.48%) Kubernetes
2 25 (4.76%) Ansible
3 15 (2.86%) BladeLogic
3 15 (2.86%) ITRS Geneos
4 12 (2.29%) Terraform
5 9 (1.71%) Opscode Chef
6 5 (0.95%) Puppet
7 3 (0.57%) Oozie
8 1 (0.19%) Core Impact
8 1 (0.19%) Istio
8 1 (0.19%) SCCM
8 1 (0.19%) vCenter Server
Vendors
1 33 (6.29%) Microsoft
2 29 (5.52%) Oracle
3 17 (3.24%) Salesforce.com
4 15 (2.86%) Altiris
5 12 (2.29%) SAP
6 11 (2.10%) Databricks
7 8 (1.52%) Google
7 8 (1.52%) PayPal
7 8 (1.52%) WorldPay
8 6 (1.14%) Adobe
8 6 (1.14%) Informatica
9 5 (0.95%) ServiceNow
10 4 (0.76%) Cloudera
11 3 (0.57%) Atlassian
11 3 (0.57%) Cerner
11 3 (0.57%) StreamSets
12 2 (0.38%) Ensighten
12 2 (0.38%) IBM
12 2 (0.38%) Netlify
12 2 (0.38%) Snow