Period
to 8 August 2020

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 8 August 2020 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
8 Aug 2020
Same period 2019 Same period 2018
Rank 242 236 268
Rank change year-on-year -6 +32 -11
Contract jobs citing Data Structures 138 439 460
As % of all contract jobs advertised in London 0.90% 1.10% 1.01%
As % of the Miscellaneous category 2.34% 3.17% 2.78%
Number of daily rates quoted 94 333 290
Median daily rate £608 £550 £550
Median daily rate % change year-on-year +10.45% - +10.00%
10th Percentile £365 £383 £408
90th Percentile £798 £713 £700
England median daily rate £563 £525 £500
% change year-on-year +7.14% +5.00% +7.53%
Number of hourly rates quoted 1 3 3
Median hourly rate £57.50 £47.50 £20.00
Median hourly rate % change year-on-year +21.05% +137.50% -
10th Percentile £53.75 £18.15 £19.20
90th Percentile £61.25 £51.25 £21.00
England median hourly rate £35.00 £50.00 £32.75
% change year-on-year -30.00% +52.67% -6.43%

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 5,885 13,856 16,540
As % of all contract IT jobs advertised in London 38.51% 34.62% 36.14%
Number of daily rates quoted 4,107 9,659 11,755
Median daily rate £525 £525 £513
Median daily rate % change year-on-year - +2.44% +2.50%
10th Percentile £315 £325 £313
90th Percentile £750 £700 £700
England median daily rate £500 £475 £475
% change year-on-year +5.26% - +5.56%
Number of hourly rates quoted 131 219 257
Median hourly rate £35.00 £24.50 £22.95
Median hourly rate % change year-on-year +42.86% +6.75% +4.56%
10th Percentile £15.94 £13.45 £13.28
90th Percentile £51.75 £53.75 £52.25
Median hourly rate £34.00 £21.00 £21.50
% change year-on-year +61.90% -2.33% +7.50%

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 8 August 2020.

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 8 August 2020. 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
Central London +56 26 £575 - 39
West London +24 4 £399 -21.23% 6
East London +41 1 - - 3
South London +38 1 £700 +86.67% 2
Data Structures
England

For the 6 months to 8 August 2020, 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 64 (46.38%) Java
2 55 (39.86%) Agile Software Development
3 45 (32.61%) SQL
4 43 (31.16%) Finance
5 41 (29.71%) Algorithms
6 39 (28.26%) Python
7 37 (26.81%) JavaScript
7 37 (26.81%) Multithreading
8 36 (26.09%) Banking
8 36 (26.09%) Problem-Solving
9 33 (23.91%) Front Office
9 33 (23.91%) Analytical Skills
10 29 (21.01%) AWS
10 29 (21.01%) Foreign Exchange (FX)
10 29 (21.01%) Linux
11 28 (20.29%) OO
12 25 (18.12%) Git (software)
12 25 (18.12%) Analytics
13 24 (17.39%) Multithreaded Programming
13 24 (17.39%) Computer Science
13 24 (17.39%) Algorithmic Trading
13 24 (17.39%) CSS
14 23 (16.67%) HTML
14 23 (16.67%) TDD
14 23 (16.67%) Low Latency
14 23 (16.67%) NoSQL
15 21 (15.22%) C#
15 21 (15.22%) Data Modelling
16 20 (14.49%) Oracle
17 19 (13.77%) SQL Server

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 4 (2.90%) Apache Spark
2 3 (2.17%) Confluence
2 3 (2.17%) Elasticsearch
2 3 (2.17%) SharePoint
3 2 (1.45%) IIS
3 2 (1.45%) NetWeaver
3 2 (1.45%) WebLogic
3 2 (1.45%) WebSphere
4 1 (0.72%) Apache
4 1 (0.72%) CMS
4 1 (0.72%) Jupyter
4 1 (0.72%) Oracle SOA Suite
Applications
1 7 (5.07%) InVision
1 7 (5.07%) Sketch
1 7 (5.07%) Zeplin
2 2 (1.45%) Microsoft Excel
Business Applications
1 2 (1.45%) SAP BPC
2 1 (0.72%) Advent Geneva
2 1 (0.72%) FINCAD Analytics
2 1 (0.72%) ION MarketView
2 1 (0.72%) Oracle EBS
2 1 (0.72%) SAP S/4HANA
2 1 (0.72%) Teamcenter
Cloud Services
1 29 (21.01%) AWS
2 19 (13.77%) Azure
3 13 (9.42%) GCP
4 9 (6.52%) Cloud Computing
5 7 (5.07%) Serverless
6 6 (4.35%) Amazon S3
7 5 (3.62%) AWS CloudFormation
7 5 (3.62%) Heroku
7 5 (3.62%) Power Platform
8 4 (2.90%) Amazon EC2
9 3 (2.17%) AWS Lambda
9 3 (2.17%) GitHub
9 3 (2.17%) Office 365
9 3 (2.17%) PaaS
10 2 (1.45%) Amazon ECS
10 2 (1.45%) Amazon Kinesis
10 2 (1.45%) Slack
11 1 (0.72%) AWS CodeCommit
11 1 (0.72%) AWS CodeDeploy
11 1 (0.72%) AWS Step Functions
Communications & Networking
1 3 (2.17%) HTTP
1 3 (2.17%) TCP/IP
2 2 (1.45%) Internet
3 1 (0.72%) Firewall
3 1 (0.72%) Skype
3 1 (0.72%) WebEx
Database & Business Intelligence
1 23 (16.67%) NoSQL
2 19 (13.77%) SQL Server
3 12 (8.70%) Relational Database
4 11 (7.97%) Data Warehouse
5 9 (6.52%) Big Data
6 7 (5.07%) PostgreSQL
6 7 (5.07%) RDBMS
7 6 (4.35%) MongoDB
8 5 (3.62%) Power BI
9 4 (2.90%) Amazon Redshift
9 4 (2.90%) BusinessObjects
9 4 (2.90%) Hadoop
9 4 (2.90%) SAP BW
9 4 (2.90%) SQL Server Integration Services
10 3 (2.17%) Amazon Aurora
10 3 (2.17%) Amazon RDS
10 3 (2.17%) BigQuery
10 3 (2.17%) Data Lake
10 3 (2.17%) Data Mining
10 3 (2.17%) MySQL
Development Applications
1 25 (18.12%) Git (software)
2 17 (12.32%) Jenkins
3 11 (7.97%) Ant
4 8 (5.80%) webpack
5 6 (4.35%) Axure RP
5 6 (4.35%) Maven
6 5 (3.62%) Gradle
6 5 (3.62%) JIRA
7 4 (2.90%) JUnit
8 3 (2.17%) GitLab
8 3 (2.17%) JMeter
9 2 (1.45%) git-flow
9 2 (1.45%) Mockito
9 2 (1.45%) Oracle Forms
9 2 (1.45%) PROIV
9 2 (1.45%) Subversion
9 2 (1.45%) Visual Studio
10 1 (0.72%) Eclipse
10 1 (0.72%) LoadRunner
10 1 (0.72%) Sonatype Nexus
General
1 43 (31.16%) Finance
2 36 (26.09%) Banking
3 33 (23.91%) Front Office
4 17 (12.32%) Investment Banking
5 8 (5.80%) Public Sector
6 5 (3.62%) Games
7 4 (2.90%) Legal
7 4 (2.90%) Publishing
8 2 (1.45%) Marketing
8 2 (1.45%) Telecoms
9 1 (0.72%) Electronics
9 1 (0.72%) Financial Institution
9 1 (0.72%) Law
9 1 (0.72%) Local Government
9 1 (0.72%) Manufacturing
9 1 (0.72%) Multimedia
9 1 (0.72%) Retail
Job Titles
1 80 (57.97%) Developer
2 36 (26.09%) Java Developer
3 15 (10.87%) Python Developer
4 14 (10.14%) Senior Developer
5 12 (8.70%) Investment Banking Java Developer
6 11 (7.97%) Consultant
7 8 (5.80%) Algorithmic Trading Developer
7 8 (5.80%) Java Developer - Algorithmic Trading
7 8 (5.80%) Senior Java Developer
8 7 (5.07%) Data Engineer
9 6 (4.35%) C# Developer
9 6 (4.35%) Designer
9 6 (4.35%) Digital Developer
9 6 (4.35%) Senior Algorithmic Trading Developer
9 6 (4.35%) UI Designer
10 5 (3.62%) Node.js Developer
11 4 (2.90%) .NET Developer
11 4 (2.90%) Analyst
11 4 (2.90%) AWS Engineer
11 4 (2.90%) Full Stack Developer
Libraries, Frameworks & Software Standards
1 24 (17.39%) CSS
2 23 (16.67%) HTML
3 18 (13.04%) FIX Protocol
3 18 (13.04%) Web Services
4 17 (12.32%) HTML5
5 15 (10.87%) React
6 13 (9.42%) REST
7 12 (8.70%) Node.js
8 11 (7.97%) .NET
8 11 (7.97%) AngularJS
9 9 (6.52%) .NET Core
9 9 (6.52%) NumPy
9 9 (6.52%) Pandas
9 9 (6.52%) Redux
10 8 (5.80%) CSS3
10 8 (5.80%) RESTful
11 7 (5.07%) GraphQL
11 7 (5.07%) Jest
11 7 (5.07%) JSON
12 6 (4.35%) .NET Framework
Miscellaneous
1 41 (29.71%) Algorithms
2 33 (23.91%) Analytical Skills
3 29 (21.01%) Foreign Exchange (FX)
4 16 (11.59%) User Experience
5 13 (9.42%) Enterprise Software
6 11 (7.97%) Fixed Income
7 8 (5.80%) Equities
8 6 (4.35%) Management Information System
9 5 (3.62%) Derivative
10 4 (2.90%) Blog
10 4 (2.90%) Greenfield Project
11 2 (1.45%) Cloud Native
11 2 (1.45%) Mobile App
11 2 (1.45%) Mobile Payment
11 2 (1.45%) Private Cloud
11 2 (1.45%) Self-Motivation
12 1 (0.72%) Credit Risk
12 1 (0.72%) FMCG
12 1 (0.72%) Mashup
12 1 (0.72%) OTC Derivatives
Operating Systems
1 29 (21.01%) Linux
2 7 (5.07%) Unix
3 1 (0.72%) Android
3 1 (0.72%) Apple iOS
3 1 (0.72%) Windows
Processes & Methodologies
1 55 (39.86%) Agile Software Development
2 37 (26.81%) Multithreading
3 36 (26.09%) Problem-Solving
4 28 (20.29%) OO
5 25 (18.12%) Analytics
6 24 (17.39%) Algorithmic Trading
6 24 (17.39%) Computer Science
6 24 (17.39%) Multithreaded Programming
7 23 (16.67%) Low Latency
7 23 (16.67%) TDD
8 21 (15.22%) Data Modelling
9 17 (12.32%) Business Intelligence
9 17 (12.32%) OOD
9 17 (12.32%) Performance Tuning
10 16 (11.59%) Concurrent Programming
10 16 (11.59%) Memory Management
10 16 (11.59%) Software Engineering
11 14 (10.14%) Open Source
12 13 (9.42%) Microservices
13 12 (8.70%) Test Automation
Programming Languages
1 64 (46.38%) Java
2 45 (32.61%) SQL
3 39 (28.26%) Python
4 37 (26.81%) JavaScript
5 21 (15.22%) C#
6 12 (8.70%) C++
6 12 (8.70%) TypeScript
7 6 (4.35%) ES6
7 6 (4.35%) Go
7 6 (4.35%) Scala
8 5 (3.62%) Bash Shell
8 5 (3.62%) Kotlin
8 5 (3.62%) PL/SQL
9 4 (2.90%) ABAP
9 4 (2.90%) Java 8
10 3 (2.17%) C
11 2 (1.45%) Groovy
11 2 (1.45%) R
11 2 (1.45%) VBA
12 1 (0.72%) PowerShell
Qualifications
1 13 (9.42%) Degree
2 4 (2.90%) CISM
2 4 (2.90%) Computer Science Degree
3 3 (2.17%) Master's Degree
4 2 (1.45%) DV Cleared
4 2 (1.45%) ITIL Certification
4 2 (1.45%) Numerate Degree
4 2 (1.45%) SAP Certification
4 2 (1.45%) SC Cleared
4 2 (1.45%) Security Cleared
5 1 (0.72%) ISEB
5 1 (0.72%) ISEB Practitioner
5 1 (0.72%) PhD
Quality Assurance & Compliance
1 10 (7.25%) Data Quality
1 10 (7.25%) QA
2 4 (2.90%) COBIT
3 2 (1.45%) SLA
4 1 (0.72%) Cyber Essentials
4 1 (0.72%) Cyber Essentials PLUS
4 1 (0.72%) ISO 9001
4 1 (0.72%) ISO/IEC 27001
4 1 (0.72%) NCSC
4 1 (0.72%) WCAG
System Software
1 15 (10.87%) Docker
Systems Management
1 14 (10.14%) Kubernetes
2 11 (7.97%) Terraform
3 1 (0.72%) Control-M
3 1 (0.72%) Istio
Vendors
1 20 (14.49%) Oracle
2 7 (5.07%) Microsoft
2 7 (5.07%) SAP
3 6 (4.35%) Adobe
4 4 (2.90%) DevExpress
5 3 (2.17%) Bloomberg
6 2 (1.45%) Google
6 2 (1.45%) Informatica
6 2 (1.45%) Tableau
7 1 (0.72%) Advent
7 1 (0.72%) Atlassian
7 1 (0.72%) Dynatrace
7 1 (0.72%) hybris
7 1 (0.72%) Infor
7 1 (0.72%) Pardot
7 1 (0.72%) Pega
7 1 (0.72%) ServiceNow
7 1 (0.72%) Splunk
7 1 (0.72%) Talend
7 1 (0.72%) Veracode