Period
to 22 January 2022

The table below looks at the prevalence of the term Data Structures in contract job vacancies advertised in the City of London. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Data Structures over the 6 months to 22 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
Central London > City of London
6 months to
22 Jan 2022
Same period 2021 Same period 2020
Rank 152 102 141
Rank change year-on-year -50 +39 +17
Contract jobs citing Data Structures 38 23 56
As % of all contract jobs advertised in the City of London 0.96% 1.10% 1.12%
As % of the Miscellaneous category 2.73% 3.11% 3.68%
Number of daily rates quoted 32 22 42
10th Percentile £525 £429 £409
25th Percentile £627 £483 £431
Median daily rate (50th Percentile) £750 £581 £540
Median % change year-on-year +29.03% +7.64% -0.92%
75th Percentile £838 £605 £626
90th Percentile £925 £648 £700
Central London median daily rate £750 £581 £539
% change year-on-year +29.03% +7.89% -2.05%

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 the City of London with a requirement for generic IT skills.

All Generic IT Skills
City of London
Contract vacancies with a requirement for generic IT skills 1,391 740 1,522
As % of all contract IT jobs advertised in the City of London 35.05% 35.44% 30.57%
Number of daily rates quoted 1,057 521 1,181
10th Percentile £405 £313 £297
25th Percentile £489 £413 £413
Median daily rate (50th Percentile) £575 £525 £525
Median % change year-on-year +9.52% - -
75th Percentile £688 £638 £625
90th Percentile £800 £725 £700
Central London median daily rate £575 £525 £515
% change year-on-year +9.52% +1.94% -1.90%
Number of hourly rates quoted 24 17 30
10th Percentile £36.55 £13.22 £11.90
25th Percentile £41.75 £22.50 £15.00
Median hourly rate £50.50 £32.00 £20.67
Median % change year-on-year +57.81% +54.85% +10.51%
75th Percentile £61.94 £37.25 £31.78
90th Percentile £64.85 £46.70 £52.25
Central London median hourly rate £50.50 £30.95 £21.00
% change year-on-year +63.19% +47.36% +10.67%

Data Structures
Job Vacancy Trend in the City of London

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

Job vacancy trend for Data Structures in the City of London

Data Structures
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for Data Structures in the City of London

Data Structures
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Data Structures in the City of London over the 6 months to 22 January 2022.

Daily rate histogram for Data Structures in the City of London

Data Structures
Contractor Hourly Rate Trend in the City of London

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

Hourly rate trend for Data Structures in the City of London

Data Structures
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 Data Structures within the City of London region over the 6 months to 22 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
London Bridge -2 5 £825 +37.50%
Data Structures
Central London

For the 6 months to 22 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 City of London region with a requirement for Data Structures.

1 19 (50.00%) Agile Software Development
2 15 (39.47%) AWS
2 15 (39.47%) Algorithms
3 13 (34.21%) React
3 13 (34.21%) DevOps
4 11 (28.95%) JavaScript
4 11 (28.95%) Python
5 10 (26.32%) HTML
5 10 (26.32%) AngularJS
6 9 (23.68%) Analytical Skills
6 9 (23.68%) CSS
6 9 (23.68%) Multithreading
7 8 (21.05%) OO
7 8 (21.05%) Front Office
7 8 (21.05%) Microservices
7 8 (21.05%) Sass
7 8 (21.05%) ES6
8 7 (18.42%) webpack
8 7 (18.42%) Build Automation
8 7 (18.42%) Continuous Deployment
8 7 (18.42%) TDD
8 7 (18.42%) Scala
8 7 (18.42%) BDD
8 7 (18.42%) Node.js
9 6 (15.79%) Machine Learning
9 6 (15.79%) Azure
9 6 (15.79%) Test Automation
9 6 (15.79%) Software Engineering
9 6 (15.79%) Scrum
9 6 (15.79%) SQL

Data Structures
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 1 (2.63%) Apache Spark
1 1 (2.63%) CMS
1 1 (2.63%) Drupal
1 1 (2.63%) EPiServer
1 1 (2.63%) Sitecore CMS
1 1 (2.63%) Umbraco
Applications
1 1 (2.63%) Microsoft PowerPoint
Cloud Services
1 15 (39.47%) AWS
2 6 (15.79%) Azure
3 5 (13.16%) GCP
3 5 (13.16%) Serverless
4 4 (10.53%) AWS CloudFormation
5 3 (7.89%) AWS Lambda
6 2 (5.26%) Amazon CloudWatch
6 2 (5.26%) Amazon Kinesis
6 2 (5.26%) Azure Service Bus
6 2 (5.26%) PaaS
7 1 (2.63%) Amazon ECS
7 1 (2.63%) Amazon S3
7 1 (2.63%) AWS CodePipeline
7 1 (2.63%) AWS Step Functions
7 1 (2.63%) GitHub
Communications & Networking
1 1 (2.63%) Firewall
1 1 (2.63%) TCP/IP
Database & Business Intelligence
1 3 (7.89%) Amazon DynamoDB
1 3 (7.89%) BigQuery
1 3 (7.89%) NoSQL
2 2 (5.26%) Big Data
2 2 (5.26%) MariaDB
2 2 (5.26%) MySQL
3 1 (2.63%) Amazon Athena
3 1 (2.63%) Amazon Redshift
3 1 (2.63%) Apache Hive
3 1 (2.63%) Hadoop
3 1 (2.63%) Relational Database
Development Applications
1 7 (18.42%) webpack
2 6 (15.79%) Grunt
2 6 (15.79%) gulp
2 6 (15.79%) Jasmine
2 6 (15.79%) PhantomJS
3 2 (5.26%) JIRA
4 1 (2.63%) ERwin
4 1 (2.63%) Git (software)
4 1 (2.63%) Jenkins
4 1 (2.63%) Mocha
General
1 9 (23.68%) Analytical Skills
2 8 (21.05%) Front Office
3 5 (13.16%) Banking
3 5 (13.16%) Finance
4 4 (10.53%) Social Skills
5 1 (2.63%) Advertising
5 1 (2.63%) Games
5 1 (2.63%) Marketing
5 1 (2.63%) Retail
Job Titles
1 26 (68.42%) Developer
2 6 (15.79%) Python Developer
2 6 (15.79%) Scala Developer
3 5 (13.16%) React Developer
4 4 (10.53%) Java Developer
4 4 (10.53%) Senior Developer
4 4 (10.53%) Software Engineer
5 3 (7.89%) Front End Developer (Client-Side Developer)
5 3 (7.89%) Senior Java Developer
6 2 (5.26%) Data Engineer
6 2 (5.26%) Developer/Software Engineer
6 2 (5.26%) Electronic Trading Developer
6 2 (5.26%) Front Office Developer
6 2 (5.26%) Full Stack Developer
6 2 (5.26%) Quantitative Developer
6 2 (5.26%) Scala Engineer
6 2 (5.26%) Scala Software Engineer
6 2 (5.26%) Software Developer
7 1 (2.63%) Architect
7 1 (2.63%) Python Engineer
Libraries, Frameworks & Software Standards
1 13 (34.21%) React
2 10 (26.32%) AngularJS
2 10 (26.32%) HTML
3 9 (23.68%) CSS
4 8 (21.05%) Sass
5 7 (18.42%) Node.js
6 6 (15.79%) Jest
6 6 (15.79%) Vue.js
7 3 (7.89%) .NET
7 3 (7.89%) RESTful
7 3 (7.89%) Spring
7 3 (7.89%) Spring Boot
8 2 (5.26%) CSS3
8 2 (5.26%) Express
8 2 (5.26%) HTML5
8 2 (5.26%) Kafka
8 2 (5.26%) REST
8 2 (5.26%) Symfony
9 1 (2.63%) jQuery
9 1 (2.63%) Mustache
Miscellaneous
1 15 (39.47%) Algorithms
2 5 (13.16%) Derivative
3 4 (10.53%) Foreign Exchange (FX)
4 3 (7.89%) Greenfield Project
5 2 (5.26%) Cloud Native
5 2 (5.26%) Fixed Income
5 2 (5.26%) Interest Rate Derivative
6 1 (2.63%) Blog
6 1 (2.63%) Clustering
6 1 (2.63%) CMDB
6 1 (2.63%) Enterprise Software
6 1 (2.63%) EPoS
6 1 (2.63%) Legacy Systems
6 1 (2.63%) Management Information System
6 1 (2.63%) Mobile App
6 1 (2.63%) User Experience
Operating Systems
1 3 (7.89%) Linux
2 1 (2.63%) Red Hat Enterprise Linux
2 1 (2.63%) Unix
2 1 (2.63%) Windows
Processes & Methodologies
1 19 (50.00%) Agile Software Development
2 13 (34.21%) DevOps
3 9 (23.68%) Multithreading
4 8 (21.05%) Microservices
4 8 (21.05%) OO
5 7 (18.42%) BDD
5 7 (18.42%) Build Automation
5 7 (18.42%) Continuous Deployment
5 7 (18.42%) TDD
6 6 (15.79%) Front End Development
6 6 (15.79%) Machine Learning
6 6 (15.79%) Scrum
6 6 (15.79%) Software Engineering
6 6 (15.79%) Test Automation
6 6 (15.79%) User Stories
6 6 (15.79%) Wireframes
7 5 (13.16%) Artificial Intelligence
7 5 (13.16%) Kanban
8 4 (10.53%) ATDD
8 4 (10.53%) SDET
Programming Languages
1 11 (28.95%) JavaScript
1 11 (28.95%) Python
2 8 (21.05%) ES6
3 7 (18.42%) Scala
4 6 (15.79%) SQL
5 5 (13.16%) Java
6 3 (7.89%) Java 11
6 3 (7.89%) Java 8
7 2 (5.26%) PHP
8 1 (2.63%) C#
8 1 (2.63%) C++
8 1 (2.63%) TypeScript
Qualifications
1 1 (2.63%) DBS Check
1 1 (2.63%) Degree
1 1 (2.63%) PhD
1 1 (2.63%) SC Cleared
1 1 (2.63%) Security Cleared
Quality Assurance & Compliance
1 2 (5.26%) Accessibility
1 2 (5.26%) Data Quality
2 1 (2.63%) MiFID
System Software
1 6 (15.79%) Docker
2 1 (2.63%) LXC
Systems Management
1 6 (15.79%) Opscode Chef
2 2 (5.26%) Kubernetes
3 1 (2.63%) SCCM
3 1 (2.63%) vCenter Server
Vendors
1 1 (2.63%) Adobe
1 1 (2.63%) Cisco
1 1 (2.63%) F5
1 1 (2.63%) Juniper
1 1 (2.63%) Oracle
1 1 (2.63%) Red Hat
1 1 (2.63%) ServiceNow
1 1 (2.63%) Sitecore
1 1 (2.63%) SolarWinds