Period
to 13 August 2020

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 13 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
Central London > City of London
6 months to
13 Aug 2020
Same period 2019 Same period 2018
Rank 113 163 196
Rank change year-on-year +50 +33 -25
Contract jobs citing Data Structures 18 71 62
As % of all contract jobs advertised in the City of London 0.83% 1.10% 0.89%
As % of the Miscellaneous category 2.34% 3.37% 2.17%
Number of daily rates quoted 10 54 54
Median daily rate £575 £575 £500
Median daily rate % change year-on-year - +15.00% -
10th Percentile £403 £413 £391
90th Percentile £988 £642 £646
Central London median daily rate £575 £575 £500
% change year-on-year - +15.00% -
Number of hourly rates quoted 0 1 0
Median hourly rate - £12.50 -
Central London median hourly rate - £12.50 -

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 770 2,107 2,863
As % of all contract IT jobs advertised in the City of London 35.68% 32.56% 40.91%
Number of daily rates quoted 500 1,563 2,176
Median daily rate £525 £525 £525
10th Percentile £325 £325 £313
90th Percentile £701 £675 £725
Central London median daily rate £516 £525 £518
% change year-on-year -1.67% +1.45% -1.43%
Number of hourly rates quoted 36 46 56
Median hourly rate £35.25 £20.67 £20.00
Median hourly rate % change year-on-year +70.58% +3.33% -5.56%
10th Percentile £13.38 £11.25 £14.53
90th Percentile £47.75 £56.00 £45.07
Median hourly rate £35.25 £20.92 £20.00
% change year-on-year +68.54% +4.58% +6.95%

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 13 August 2020.

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

For the 6 months to 13 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 City of London region with a requirement for Data Structures.

1 10 (55.56%) Java
2 8 (44.44%) HTML
2 8 (44.44%) Multithreading
2 8 (44.44%) Multithreaded Programming
3 7 (38.89%) HTML5
3 7 (38.89%) SQL Server
3 7 (38.89%) Agile Software Development
3 7 (38.89%) Banking
4 6 (33.33%) Fixed Income
4 6 (33.33%) Oracle
4 6 (33.33%) OO
4 6 (33.33%) OOD
4 6 (33.33%) RDBMS
4 6 (33.33%) Enterprise Software
4 6 (33.33%) Relational Database
4 6 (33.33%) Electronic Trading
4 6 (33.33%) Unit Testing
4 6 (33.33%) AWS
4 6 (33.33%) Concurrent Programming
5 5 (27.78%) Algorithms
5 5 (27.78%) QA
5 5 (27.78%) Software Engineering
5 5 (27.78%) Swing
5 5 (27.78%) Ant
5 5 (27.78%) JavaScript
5 5 (27.78%) SQL
5 5 (27.78%) Finance
6 4 (22.22%) Python
6 4 (22.22%) Linux
6 4 (22.22%) Analytical Skills

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 (5.56%) Confluence
1 1 (5.56%) NetWeaver
Applications
1 1 (5.56%) InVision
1 1 (5.56%) Sketch
1 1 (5.56%) Zeplin
Business Applications
1 1 (5.56%) SAP BPC
Cloud Services
1 6 (33.33%) AWS
2 2 (11.11%) Azure
3 1 (5.56%) AWS CloudFormation
3 1 (5.56%) Cloud Computing
3 1 (5.56%) GCP
3 1 (5.56%) PaaS
3 1 (5.56%) Serverless
Database & Business Intelligence
1 7 (38.89%) SQL Server
2 6 (33.33%) RDBMS
2 6 (33.33%) Relational Database
3 2 (11.11%) NoSQL
4 1 (5.56%) Azure SQL Data Warehouse
4 1 (5.56%) Azure SQL Database
4 1 (5.56%) BusinessObjects
4 1 (5.56%) Data Warehouse
4 1 (5.56%) PostgreSQL
4 1 (5.56%) Redis
4 1 (5.56%) SAP BW
Development Applications
1 5 (27.78%) Ant
2 2 (11.11%) Git (software)
3 1 (5.56%) Axure RP
3 1 (5.56%) Eclipse
3 1 (5.56%) JIRA
3 1 (5.56%) Oracle Forms
General
1 7 (38.89%) Banking
2 5 (27.78%) Finance
3 2 (11.11%) Front Office
3 2 (11.11%) Public Sector
4 1 (5.56%) Law
4 1 (5.56%) Legal
Job Titles
1 10 (55.56%) Developer
2 7 (38.89%) Java Developer
3 3 (16.67%) Consultant
3 3 (16.67%) Python Developer
4 2 (11.11%) Analyst
4 2 (11.11%) Business Analyst
4 2 (11.11%) Full Stack Developer
5 1 (5.56%) Algorithmic Trading Developer
5 1 (5.56%) Chief Technology Officer
5 1 (5.56%) Data Analyst
5 1 (5.56%) Data Business Analyst
5 1 (5.56%) Data Consultant
5 1 (5.56%) Data Integration Analyst
5 1 (5.56%) Data Modeller
5 1 (5.56%) Governance Consultant
5 1 (5.56%) Integration Analyst
5 1 (5.56%) Java Consultant
5 1 (5.56%) Java Developer - Algorithmic Trading
5 1 (5.56%) Low Latency Java Developer
5 1 (5.56%) SAP Consultant
Libraries, Frameworks & Software Standards
1 8 (44.44%) HTML
2 7 (38.89%) HTML5
3 5 (27.78%) Swing
4 2 (11.11%) CSS
4 2 (11.11%) FIX Protocol
4 2 (11.11%) REST
5 1 (5.56%) AngularJS
5 1 (5.56%) CSS3
5 1 (5.56%) Django
5 1 (5.56%) JDBC
5 1 (5.56%) JMS
5 1 (5.56%) Kafka
5 1 (5.56%) Natural Language Processing
5 1 (5.56%) NumPy
5 1 (5.56%) PyTorch
5 1 (5.56%) RabbitMQ
5 1 (5.56%) Redux
5 1 (5.56%) Web Services
5 1 (5.56%) WebSockets
5 1 (5.56%) ZeroMQ
Miscellaneous
1 6 (33.33%) Enterprise Software
1 6 (33.33%) Fixed Income
2 5 (27.78%) Algorithms
3 4 (22.22%) Analytical Skills
4 2 (11.11%) Foreign Exchange (FX)
5 1 (5.56%) Blog
5 1 (5.56%) Derivative
5 1 (5.56%) Management Information System
5 1 (5.56%) OTC Derivatives
5 1 (5.56%) Self-Motivation
5 1 (5.56%) User Experience
Operating Systems
1 4 (22.22%) Linux
Processes & Methodologies
1 8 (44.44%) Multithreaded Programming
1 8 (44.44%) Multithreading
2 7 (38.89%) Agile Software Development
3 6 (33.33%) Concurrent Programming
3 6 (33.33%) Electronic Trading
3 6 (33.33%) OO
3 6 (33.33%) OOD
3 6 (33.33%) Unit Testing
4 5 (27.78%) Software Engineering
5 4 (22.22%) Analytics
6 3 (16.67%) Asset Management
6 3 (16.67%) Data Modelling
6 3 (16.67%) Problem-Solving
7 2 (11.11%) Data Management
7 2 (11.11%) Infrastructure as Code
7 2 (11.11%) ITIL
7 2 (11.11%) Low Latency
7 2 (11.11%) Microservices
7 2 (11.11%) Migration
7 2 (11.11%) Scrum
Programming Languages
1 10 (55.56%) Java
2 5 (27.78%) JavaScript
2 5 (27.78%) SQL
3 4 (22.22%) Python
4 1 (5.56%) ABAP
4 1 (5.56%) Bash Shell
4 1 (5.56%) C++
4 1 (5.56%) ES6
4 1 (5.56%) Java 8
4 1 (5.56%) Kotlin
4 1 (5.56%) TypeScript
4 1 (5.56%) VBA
Qualifications
1 3 (16.67%) Degree
2 1 (5.56%) CISM
2 1 (5.56%) Computer Science Degree
2 1 (5.56%) ITIL Certification
2 1 (5.56%) Master's Degree
2 1 (5.56%) SAP Certification
Quality Assurance & Compliance
1 5 (27.78%) QA
2 2 (11.11%) Data Quality
3 1 (5.56%) COBIT
System Software
1 2 (11.11%) Docker
Systems Management
1 2 (11.11%) Kubernetes
1 2 (11.11%) Terraform
Vendors
1 6 (33.33%) Oracle
2 1 (5.56%) Adobe
2 1 (5.56%) Bloomberg
2 1 (5.56%) Microsoft
2 1 (5.56%) SAP