Period
to 28 May 2020

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for C skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited C over the 6 months to 28 May 2020 with a comparison to the same period in 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.

C
Central London > City of London
6 months to
28 May 2020
Same period 2019 Same period 2018
Rank 111 195 194
Rank change year-on-year +84 -1 -37
Contract jobs citing C 36 44 64
As % of all contract jobs advertised in the City of London 1.17% 0.69% 0.93%
As % of the Programming Languages category 2.41% 1.36% 1.76%
Number of daily rates quoted 21 30 52
Median daily rate £500 £525 £500
Median daily rate % change year-on-year -4.76% +5.00% -4.76%
10th Percentile £413 £318 £413
90th Percentile £625 £719 £613
Central London median daily rate £500 £519 £508
% change year-on-year -3.61% +2.07% -3.19%
Number of hourly rates quoted 0 1 1
Median hourly rate - £11.00 £18.70
Median hourly rate % change year-on-year - -41.18% -
Central London median hourly rate - £11.00 £18.70
% change year-on-year - -41.18% -

C is in the Programming Languages 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 coding skills.

All Programming Languages
City of London
Contract vacancies with a requirement for coding skills 1,493 3,233 3,641
As % of all contract IT jobs advertised in the City of London 48.41% 50.35% 52.75%
Number of daily rates quoted 1,130 2,611 3,054
Median daily rate £525 £525 £525
10th Percentile £375 £406 £363
90th Percentile £688 £675 £694
Central London median daily rate £525 £525 £513
% change year-on-year - +2.44% +5.13%
Number of hourly rates quoted 18 21 21
Median hourly rate £35.00 £35.00 £21.50
Median hourly rate % change year-on-year - +62.79% -24.15%
10th Percentile £24.20 £21.00 £12.75
90th Percentile £56.80 £56.50 £48.25
Median hourly rate £35.00 £35.00 £21.50
% change year-on-year - +62.79% -24.15%

C
Job Vacancy Trend in the City of London

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

Job vacancy trend for C in the City of London

C
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for C in the City of London

C
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing C in the City of London over the 6 months to 28 May 2020.

Daily rate histogram for C in the City of London

C
Contractor Hourly Rate Trend in the City of London

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

Hourly rate trend for C in the City of London

For the 6 months to 28 May 2020, IT contractor jobs citing C 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 C.

1 12 (33.33%) Finance
2 11 (30.56%) Java
3 10 (27.78%) C++
4 9 (25.00%) C#
5 8 (22.22%) Python
5 8 (22.22%) AWS
6 7 (19.44%) GCP
6 7 (19.44%) Linux
6 7 (19.44%) Degree
7 6 (16.67%) Google
7 6 (16.67%) Test Automation
7 6 (16.67%) Agile Software Development
7 6 (16.67%) OO
7 6 (16.67%) Oracle
7 6 (16.67%) JavaScript
7 6 (16.67%) Microsoft
7 6 (16.67%) Analytical Skills
7 6 (16.67%) Problem-Solving
8 5 (13.89%) Public Sector
8 5 (13.89%) Kubernetes
8 5 (13.89%) Microsoft Office
8 5 (13.89%) Selenium
8 5 (13.89%) Computer Science
9 4 (11.11%) ISTQB
9 4 (11.11%) Android
9 4 (11.11%) OOP
9 4 (11.11%) Unix
9 4 (11.11%) Windows
9 4 (11.11%) Business Intelligence
9 4 (11.11%) Kotlin

C
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 (2.78%) Adobe Experience Manager
1 1 (2.78%) Elasticsearch
1 1 (2.78%) SharePoint
Applications
1 5 (13.89%) Microsoft Office
2 2 (5.56%) Microsoft Excel
3 1 (2.78%) Microsoft PowerPoint
3 1 (2.78%) Spreadsheet
Business Applications
1 1 (2.78%) Temenos T24
Cloud Services
1 8 (22.22%) AWS
2 7 (19.44%) GCP
3 3 (8.33%) Amazon ECS
3 3 (8.33%) Azure
4 2 (5.56%) IaaS
5 1 (2.78%) Adobe Analytics
5 1 (2.78%) Google Play
5 1 (2.78%) Office 365
5 1 (2.78%) OneDrive
Communications & Networking
1 3 (8.33%) DHCP
1 3 (8.33%) DNS
1 3 (8.33%) Skype
1 3 (8.33%) Unified Communications
2 2 (5.56%) Telepresence
2 2 (5.56%) VoIP
3 1 (2.78%) HTTP
3 1 (2.78%) HTTPS
3 1 (2.78%) IPv4
3 1 (2.78%) IPv6
3 1 (2.78%) TCP/IP
3 1 (2.78%) Wi-Fi
3 1 (2.78%) Wireshark
Database & Business Intelligence
1 2 (5.56%) SQL Server
2 1 (2.78%) Big Data
2 1 (2.78%) MySQL
2 1 (2.78%) NonStop SQL
Development Applications
1 5 (13.89%) Selenium
2 3 (8.33%) Git (software)
2 3 (8.33%) Jenkins
3 1 (2.78%) Appium
3 1 (2.78%) PowerBuilder
General
1 12 (33.33%) Finance
2 5 (13.89%) Public Sector
3 3 (8.33%) Games
4 2 (5.56%) Banking
5 1 (2.78%) Financial Institution
5 1 (2.78%) Law
5 1 (2.78%) Legal
5 1 (2.78%) Marketing
5 1 (2.78%) Pharmaceutical
Job Titles
1 11 (30.56%) Developer
2 4 (11.11%) Android Developer
3 3 (8.33%) DevOps Engineer
3 3 (8.33%) Project Manager
3 3 (8.33%) Service Owner
4 2 (5.56%) Consultant
4 2 (5.56%) HR Manager
4 2 (5.56%) Linux Engineer
4 2 (5.56%) Programmer
5 1 (2.78%) 3D Developer
5 1 (2.78%) Analytics Consultant
5 1 (2.78%) Analytics Manager
5 1 (2.78%) C/C++ Developer
5 1 (2.78%) HR Consultant
5 1 (2.78%) HTML CSS Developer
5 1 (2.78%) Lead Android Developer
5 1 (2.78%) Reinsurance Project Manager
5 1 (2.78%) Ruby Engineer
5 1 (2.78%) Senior Linux Systems Engineer
5 1 (2.78%) Unity 3D Developer
Libraries, Frameworks & Software Standards
1 3 (8.33%) RxJava
1 3 (8.33%) Unity (Game Engine)
2 2 (5.56%) HTML
2 2 (5.56%) Spring
2 2 (5.56%) XML
3 1 (2.78%) ActiveMQ
3 1 (2.78%) Android SDK
3 1 (2.78%) CSS
3 1 (2.78%) iOS SDK
3 1 (2.78%) J2EE
3 1 (2.78%) JNI
3 1 (2.78%) Kafka
3 1 (2.78%) Node.js
3 1 (2.78%) POSIX
3 1 (2.78%) RabbitMQ
3 1 (2.78%) React
3 1 (2.78%) REST
3 1 (2.78%) RESTful
3 1 (2.78%) Spring Boot
3 1 (2.78%) XSLT
Miscellaneous
1 6 (16.67%) Analytical Skills
2 3 (8.33%) Animation
3 1 (2.78%) Algorithms
3 1 (2.78%) Clustering
3 1 (2.78%) Device Driver
3 1 (2.78%) e-Learning
3 1 (2.78%) Reinsurance
3 1 (2.78%) Self-Motivation
3 1 (2.78%) Tandem
3 1 (2.78%) User Experience
3 1 (2.78%) Virtual Team
Operating Systems
1 7 (19.44%) Linux
2 4 (11.11%) Android
2 4 (11.11%) Unix
2 4 (11.11%) Windows
3 3 (8.33%) Windows Server
4 1 (2.78%) Apple iOS
4 1 (2.78%) Red Hat Enterprise Linux
4 1 (2.78%) Ubuntu
Processes & Methodologies
1 6 (16.67%) Agile Software Development
1 6 (16.67%) OO
1 6 (16.67%) Problem-Solving
1 6 (16.67%) Test Automation
2 5 (13.89%) Computer Science
3 4 (11.11%) Analytics
3 4 (11.11%) Android Development
3 4 (11.11%) Business Intelligence
3 4 (11.11%) Customer Requirements
3 4 (11.11%) DevOps
3 4 (11.11%) OOP
3 4 (11.11%) Open Source
4 3 (8.33%) Continuous Integration
4 3 (8.33%) Multithreading
4 3 (8.33%) MVVM
4 3 (8.33%) Project Management
4 3 (8.33%) Service Management
5 2 (5.56%) Scrum
5 2 (5.56%) TDD
5 2 (5.56%) WFM
Programming Languages
1 11 (30.56%) Java
2 10 (27.78%) C++
3 9 (25.00%) C#
4 8 (22.22%) Python
5 6 (16.67%) JavaScript
6 4 (11.11%) Kotlin
7 3 (8.33%) Go
7 3 (8.33%) Perl
7 3 (8.33%) SQL
8 1 (2.78%) Bash Shell
8 1 (2.78%) PHP
8 1 (2.78%) PL/SQL
8 1 (2.78%) PowerShell
8 1 (2.78%) Ruby
8 1 (2.78%) Shell Script
8 1 (2.78%) T-SQL
8 1 (2.78%) VBA
Qualifications
1 7 (19.44%) Degree
2 4 (11.11%) ISTQB
3 1 (2.78%) CIPD
3 1 (2.78%) Computer Science Degree
3 1 (2.78%) Master's Degree
3 1 (2.78%) MBA
3 1 (2.78%) SC Cleared
3 1 (2.78%) Security Cleared
System Software
1 4 (11.11%) Docker
2 1 (2.78%) Active Directory
2 1 (2.78%) Veritas Cluster Server
Systems Management
1 5 (13.89%) Kubernetes
2 2 (5.56%) Opscode Chef
2 2 (5.56%) Puppet
2 2 (5.56%) Salt
3 1 (2.78%) Ansible
3 1 (2.78%) Grafana
3 1 (2.78%) Kibana
3 1 (2.78%) Pacemaker
3 1 (2.78%) Prometheus
Vendors
1 6 (16.67%) Google
1 6 (16.67%) Microsoft
1 6 (16.67%) Oracle
2 3 (8.33%) Cisco
2 3 (8.33%) Verint
3 2 (5.56%) OpenText
3 2 (5.56%) RightFax
3 2 (5.56%) SaltStack
4 1 (2.78%) Adobe
4 1 (2.78%) Avaya
4 1 (2.78%) Genesys
4 1 (2.78%) HP
4 1 (2.78%) jBASE
4 1 (2.78%) Perforce
4 1 (2.78%) Red Hat
4 1 (2.78%) Temenos
4 1 (2.78%) Veritas