Period
to 14 August 2018

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 14 August 2018 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
14 Aug 2018
Same period 2017 Same period 2016
Rank 193 165 185
Rank change year-on-year -28 +20 +32
Contract jobs citing Data Structures 65 76 52
As % of all contract IT jobs advertised in the City of London 0.93% 1.16% 0.77%
As % of the Miscellaneous category 2.13% 2.75% 1.90%
Number of daily rates quoted 56 55 42
City of London median daily rate £500 £500 £474
Median daily rate % change year-on-year - +5.54% -17.61%
10th Percentile £397 £350 £375
90th Percentile £644 £738 £738
Central London median daily rate £500 £500 £525
% change year-on-year - -4.76% -6.67%
Number of hourly rates quoted 0 0 1
City of London median hourly rate - - £44.00
Central London median hourly rate - - £44.00

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 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 3,055 2,764 2,742
As % of all contract IT jobs advertised in the City of London 43.74% 42.15% 40.37%
Number of daily rates quoted 2,341 2,098 2,225
City of London median daily rate £525 £525 £475
Median daily rate % change year-on-year - +10.53% +1.33%
10th Percentile £319 £313 £304
90th Percentile £725 £688 £663
Central London median daily rate £525 £525 £465
% change year-on-year - +12.90% +3.33%
Number of hourly rates quoted 58 30 30
City of London median hourly rate £19.50 £21.16 £19.00
Median hourly rate % change year-on-year -7.82% +11.34% -8.80%
10th Percentile £13.31 £12.52 £11.25
90th Percentile £44.54 £33.36 £47.80
Central London median hourly rate £19.50 £18.85 £18.73
% change year-on-year +3.45% +0.67% -10.12%

Data Structures
Job Vacancy Trend in the City of London

Job postings citing Data Structures as a percentage 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

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Data Structures in the City of London.

Contractor daily rate trend for Data Structures in the City of London

Data Structures
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Data Structures in the City of London over the 6 months to 14 August 2018.

Contractor daily rate histogram for Data Structures in the City of London

Data Structures
Contractor Hourly Rate Trend in the City of London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Data Structures in the City of London.

Contractor 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 14 August 2018. 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
Moorgate - 2 £450 -
Data Structures
Central London

For the 6 months to 14 August 2018, 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 36 (55.38%) Agile Software Development
2 23 (35.38%) Java
3 22 (33.85%) Algorithms
4 18 (27.69%) OO
5 17 (26.15%) SQL
5 17 (26.15%) TDD
6 15 (23.08%) Degree
6 15 (23.08%) JavaScript
6 15 (23.08%) OOP
6 15 (23.08%) Python
6 15 (23.08%) CSS
7 14 (21.54%) HTML
8 13 (20.00%) Computer Science
8 13 (20.00%) Front End Development
9 11 (16.92%) Test Automation
9 11 (16.92%) Amazon AWS
9 11 (16.92%) AngularJS
9 11 (16.92%) Banking
9 11 (16.92%) Finance
10 10 (15.38%) Sass
10 10 (15.38%) NoSQL
10 10 (15.38%) Docker
10 10 (15.38%) HTML5
11 9 (13.85%) BDD
11 9 (13.85%) Git (software)
11 9 (13.85%) User Experience
11 9 (13.85%) Low Latency
11 9 (13.85%) LESS
11 9 (13.85%) XML
11 9 (13.85%) Redux

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 4 (6.15%) SAS
2 2 (3.08%) Apache Spark
2 2 (3.08%) Ethereum
3 1 (1.54%) Apache
3 1 (1.54%) Apache Pig
3 1 (1.54%) Confluence
3 1 (1.54%) Tomcat
Applications
1 4 (6.15%) Microsoft Excel
2 1 (1.54%) MS Visio
Business Applications
1 2 (3.08%) Distributed Ledger
2 1 (1.54%) Dynamics NAV
2 1 (1.54%) Markit EDM
Cloud Services
1 11 (16.92%) Amazon AWS
2 7 (10.77%) Microsoft Azure
3 3 (4.62%) GitHub
3 3 (4.62%) OpenShift
4 2 (3.08%) AdWords
5 1 (1.54%) Amazon S3
5 1 (1.54%) Google Analytics
5 1 (1.54%) npm
Communications & Networking
1 3 (4.62%) AMQP
1 3 (4.62%) Internet
1 3 (4.62%) MQTT
2 1 (1.54%) IPFS
2 1 (1.54%) Multicast
Database & Business Intelligence
1 10 (15.38%) NoSQL
2 8 (12.31%) SQL Server
3 6 (9.23%) Data Warehouse
3 6 (9.23%) Power BI
4 5 (7.69%) Big Data
5 4 (6.15%) Blockchain
5 4 (6.15%) Microsoft Analysis Services
5 4 (6.15%) MongoDB
5 4 (6.15%) Redis
5 4 (6.15%) SQL Server 2016
5 4 (6.15%) SQL Server Analysis Services
5 4 (6.15%) SQL Server Integration Services
6 3 (4.62%) Hadoop
6 3 (4.62%) MySQL
6 3 (4.62%) PostgreSQL
6 3 (4.62%) Relational Database
7 2 (3.08%) Apache Hive
7 2 (3.08%) BusinessObjects
7 2 (3.08%) OLAP
7 2 (3.08%) SAS Visual Analytics
Development Applications
1 9 (13.85%) Git (software)
2 6 (9.23%) JUnit
3 5 (7.69%) Jasmine
3 5 (7.69%) Jenkins
3 5 (7.69%) JIRA
3 5 (7.69%) PhantomJS
3 5 (7.69%) Subversion
4 4 (6.15%) Grunt
4 4 (6.15%) gulp
4 4 (6.15%) webpack
5 3 (4.62%) Cucumber
5 3 (4.62%) GoogleTest
5 3 (4.62%) TestNG
6 1 (1.54%) Eclipse
6 1 (1.54%) Gradle
6 1 (1.54%) HP UFT
6 1 (1.54%) IntelliJ
6 1 (1.54%) Maven
6 1 (1.54%) Selenium
6 1 (1.54%) Team Foundation Server
General
1 11 (16.92%) Banking
1 11 (16.92%) Finance
2 6 (9.23%) Front Office
3 4 (6.15%) Investment Banking
4 3 (4.62%) Games
4 3 (4.62%) Telecoms
5 1 (1.54%) Back Office
5 1 (1.54%) Marketing
5 1 (1.54%) Retail
Job Titles
1 41 (63.08%) Developer
2 15 (23.08%) Java Developer
3 13 (20.00%) Front End Developer (Client-Side Developer)
4 8 (12.31%) Analyst
4 8 (12.31%) Python Engineer
5 7 (10.77%) Data Engineer
6 6 (9.23%) Lead Developer
7 5 (7.69%) React Developer
7 5 (7.69%) Software Engineer
8 4 (6.15%) Python Developer
8 4 (6.15%) Senior Developer
8 4 (6.15%) Senior Java Developer
9 3 (4.62%) AWS Engineer
9 3 (4.62%) Business Analyst
9 3 (4.62%) Business Intelligence Developer
9 3 (4.62%) Java Engineer
9 3 (4.62%) Python Software Engineer
9 3 (4.62%) SQL Developer
9 3 (4.62%) SQL Server Developer
9 3 (4.62%) T-SQL Developer
Libraries, Frameworks & Software Standards
1 15 (23.08%) CSS
2 14 (21.54%) HTML
3 11 (16.92%) AngularJS
4 10 (15.38%) HTML5
4 10 (15.38%) Sass
5 9 (13.85%) LESS
5 9 (13.85%) Redux
5 9 (13.85%) XML
6 7 (10.77%) REST
7 6 (9.23%) Kafka
7 6 (9.23%) Web Services
8 5 (7.69%) CSS3
8 5 (7.69%) Jest
8 5 (7.69%) JSON
9 4 (6.15%) RESTful
9 4 (6.15%) Spring
9 4 (6.15%) Swagger
10 3 (4.62%) Dropwizard
10 3 (4.62%) React
10 3 (4.62%) Vue.js
Miscellaneous
1 22 (33.85%) Algorithms
2 13 (20.00%) Computer Science
3 9 (13.85%) User Experience
4 7 (10.77%) Fintech
5 4 (6.15%) Equities
5 4 (6.15%) Mobile App
6 3 (4.62%) Analytical Skills
6 3 (4.62%) Bitcoin
6 3 (4.62%) Data Centre
7 2 (3.08%) Foreign Exchange (FX)
7 2 (3.08%) Greenfield Project
7 2 (3.08%) Self-Motivation
8 1 (1.54%) Blog
8 1 (1.54%) Hedge funds
8 1 (1.54%) LIMS
8 1 (1.54%) Management Information System
8 1 (1.54%) Replication
8 1 (1.54%) Taxonomies
Operating Systems
1 6 (9.23%) Linux
2 1 (1.54%) Unix
Processes & Methodologies
1 36 (55.38%) Agile Software Development
2 18 (27.69%) OO
3 17 (26.15%) TDD
4 15 (23.08%) OOP
5 13 (20.00%) Front End Development
6 11 (16.92%) Test Automation
7 9 (13.85%) BDD
7 9 (13.85%) Low Latency
8 8 (12.31%) DevOps
8 8 (12.31%) Mentoring
8 8 (12.31%) Open Source
8 8 (12.31%) Problem-Solving
8 8 (12.31%) Scrum
9 7 (10.77%) ETL
9 7 (10.77%) Project Management
9 7 (10.77%) SDLC
9 7 (10.77%) Software Engineering
10 6 (9.23%) Business Intelligence
10 6 (9.23%) Data Modelling
10 6 (9.23%) Microservices
Programming Languages
1 23 (35.38%) Java
2 17 (26.15%) SQL
3 15 (23.08%) JavaScript
3 15 (23.08%) Python
4 9 (13.85%) Java 8
5 7 (10.77%) T-SQL
6 6 (9.23%) C++
6 6 (9.23%) TypeScript
7 4 (6.15%) C
7 4 (6.15%) C#
8 3 (4.62%) Groovy
8 3 (4.62%) R
9 2 (3.08%) ES6
9 2 (3.08%) Go
9 2 (3.08%) Kotlin
9 2 (3.08%) Scala
9 2 (3.08%) Solidity
10 1 (1.54%) HiveQL
10 1 (1.54%) Shell Script
10 1 (1.54%) VBA
Qualifications
1 15 (23.08%) Degree
2 5 (7.69%) Computer Science Degree
3 2 (3.08%) Master's Degree
3 2 (3.08%) Numerate Degree
4 1 (1.54%) HND
4 1 (1.54%) PhD
Quality Assurance & Compliance
1 6 (9.23%) Data Quality
2 2 (3.08%) IFRS
2 2 (3.08%) IFRS 9
3 1 (1.54%) GDPR
System Software
1 10 (15.38%) Docker
Systems Management
1 5 (7.69%) Opscode Chef
2 4 (6.15%) Kubernetes
3 3 (4.62%) Ansible
4 1 (1.54%) Consul
4 1 (1.54%) Docker Swarm
4 1 (1.54%) Kibana
4 1 (1.54%) Puppet
Vendors
1 4 (6.15%) Google
1 4 (6.15%) Microsoft
1 4 (6.15%) Oracle
2 2 (3.08%) Atlassian
2 2 (3.08%) Teradata
3 1 (1.54%) CA Agile Central
3 1 (1.54%) Cloudera
3 1 (1.54%) IBM
3 1 (1.54%) Maconomy
3 1 (1.54%) Salesforce.com
3 1 (1.54%) Splunk
3 1 (1.54%) Tableau
3 1 (1.54%) Talend