Period
to 5 August 2020

The following table provides summary statistics for contract job vacancies advertised in Central 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 5 August 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
London > Central London
6 months to
5 Aug 2020
Same period 2019 Same period 2018
Rank 100 206 168
Rank change year-on-year +106 -38 -3
Contract jobs citing C 49 74 133
As % of all contract jobs advertised in Central London 1.79% 0.88% 1.45%
As % of the Programming Languages category 3.59% 1.76% 2.74%
Number of daily rates quoted 26 51 107
Median daily rate £550 £550 £525
Median daily rate % change year-on-year - +4.76% -
10th Percentile £425 £375 £406
90th Percentile £661 £760 £780
London median daily rate £545 £525 £538
% change year-on-year +3.81% -2.33% +7.50%
Number of hourly rates quoted 0 1 1
Median hourly rate - £11.00 £18.70
Median hourly rate % change year-on-year - -41.18% -56.00%
London median hourly rate £50.00 £47.50 £39.00
% change year-on-year +5.26% +21.79% -8.24%

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 Central London with a requirement for coding skills.

All Programming Languages
Central London
Contract vacancies with a requirement for coding skills 1,365 4,205 4,859
As % of all contract IT jobs advertised in Central London 49.96% 50.24% 53.09%
Number of daily rates quoted 980 3,408 4,003
Median daily rate £525 £525 £525
10th Percentile £363 £400 £363
90th Percentile £688 £675 £688
London median daily rate £525 £525 £513
% change year-on-year - +2.44% +2.50%
Number of hourly rates quoted 15 25 19
Median hourly rate £35.00 £35.00 £21.50
Median hourly rate % change year-on-year - +62.79% -18.61%
10th Percentile £26.60 £21.00 £12.50
90th Percentile £57.10 £59.05 £63.50
Median hourly rate £35.00 £42.11 £39.00
% change year-on-year -16.88% +7.97% +4.00%

C
Job Vacancy Trend in Central London

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

Job vacancy trend for C in Central London

C
Contractor Daily Rate Trend in Central London

3-month moving average daily rate quoted in jobs citing C in Central London.

Daily rate trend for C in Central London

C
Daily Rate Histogram in Central London

Daily rate distribution for jobs citing C in Central London over the 6 months to 5 August 2020.

Daily rate histogram for C in Central London

C
Contractor Hourly Rate Trend in Central London

3-month moving average hourly rates quoted in jobs citing C in Central London.

Hourly rate trend for C in Central London

C
Contract Job Locations in Central London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing C within the Central London region over the 6 months to 5 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
City of London +88 34 £550 - 16
West End of London +23 7 £550 +61.76%
City of Westminster +27 2 £538 +14.97%
C
London

For the 6 months to 5 August 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 Central London region with a requirement for C.

1 22 (44.90%) Finance
2 15 (30.61%) Agile Software Development
3 14 (28.57%) Linux
4 12 (24.49%) Java
5 11 (22.45%) C++
5 11 (22.45%) Unix
6 10 (20.41%) AWS
6 10 (20.41%) Analytical Skills
6 10 (20.41%) Problem-Solving
7 9 (18.37%) Python
8 8 (16.33%) Windows
8 8 (16.33%) Oracle
8 8 (16.33%) JavaScript
8 8 (16.33%) Security Cleared
8 8 (16.33%) Test Automation
9 7 (14.29%) Git (software)
9 7 (14.29%) Open Source
9 7 (14.29%) GCP
9 7 (14.29%) DevOps
9 7 (14.29%) Perl
9 7 (14.29%) C#
9 7 (14.29%) Microsoft
9 7 (14.29%) Kubernetes
10 6 (12.24%) DNS
10 6 (12.24%) Firewall
10 6 (12.24%) Migration
10 6 (12.24%) Jenkins
10 6 (12.24%) Google
10 6 (12.24%) Degree
10 6 (12.24%) Continuous Integration

C
Co-occurring IT Skills in Central 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 (2.04%) CMS
1 1 (2.04%) Elasticsearch
1 1 (2.04%) Exchange Server 2010
1 1 (2.04%) MS Exchange
1 1 (2.04%) OpenStack
1 1 (2.04%) Oracle Application Server
1 1 (2.04%) SharePoint
Applications
1 3 (6.12%) Microsoft Office
2 1 (2.04%) Microsoft Excel
2 1 (2.04%) Spreadsheet
Cloud Services
1 10 (20.41%) AWS
2 7 (14.29%) GCP
3 5 (10.20%) Azure
3 5 (10.20%) IaaS
4 2 (4.08%) Amazon ECS
4 2 (4.08%) Apigee
4 2 (4.08%) Office 365
4 2 (4.08%) OneDrive
4 2 (4.08%) PaaS
4 2 (4.08%) SaaS
5 1 (2.04%) AWS CloudFormation
5 1 (2.04%) Azure Active Directory
5 1 (2.04%) GitHub
5 1 (2.04%) Google Play
5 1 (2.04%) Mimecast
5 1 (2.04%) Virtual Private Cloud
Communications & Networking
1 6 (12.24%) DNS
1 6 (12.24%) Firewall
2 5 (10.20%) DHCP
3 4 (8.16%) LAN
3 4 (8.16%) Skype
4 3 (6.12%) Network Security
4 3 (6.12%) TCP/IP
4 3 (6.12%) Unified Communications
5 2 (4.08%) Internet
5 2 (4.08%) OSPF
5 2 (4.08%) Telepresence
5 2 (4.08%) VoIP
5 2 (4.08%) VPN
5 2 (4.08%) WAN
6 1 (2.04%) BGP
6 1 (2.04%) DMZ
6 1 (2.04%) F5 BIG-IP LTM
6 1 (2.04%) SAN
6 1 (2.04%) SNMP
6 1 (2.04%) TACACS
Database & Business Intelligence
1 2 (4.08%) SQL Server
2 1 (2.04%) Big Data
2 1 (2.04%) MySQL
2 1 (2.04%) NonStop SQL
2 1 (2.04%) OLAP
2 1 (2.04%) Oracle Database
2 1 (2.04%) Oracle Database 10g
2 1 (2.04%) Oracle Database 11g
2 1 (2.04%) Oracle Database 12c
2 1 (2.04%) Oracle Reports
2 1 (2.04%) TKPROF
Development Applications
1 7 (14.29%) Git (software)
2 6 (12.24%) Jenkins
3 3 (6.12%) Selenium
4 1 (2.04%) Cucumber
4 1 (2.04%) Grunt
4 1 (2.04%) gulp
4 1 (2.04%) Jasmine
4 1 (2.04%) Mocha
4 1 (2.04%) Oracle Forms
4 1 (2.04%) PowerBuilder
4 1 (2.04%) Subversion
4 1 (2.04%) Visual Studio
General
1 22 (44.90%) Finance
2 4 (8.16%) Public Sector
3 2 (4.08%) Banking
3 2 (4.08%) Games
4 1 (2.04%) Investment Banking
4 1 (2.04%) Law
4 1 (2.04%) Pharmaceutical
4 1 (2.04%) Retail
Job Titles
1 13 (26.53%) Developer
2 5 (10.20%) Architect
3 4 (8.16%) Android Developer
3 4 (8.16%) Head of Delivery
3 4 (8.16%) Head of IT
3 4 (8.16%) Linux Engineer
4 3 (6.12%) Analyst
4 3 (6.12%) Network Engineer
4 3 (6.12%) Service Owner
5 2 (4.08%) Cisco Engineer
5 2 (4.08%) Cisco Network Engineer
5 2 (4.08%) Cloud Architect
5 2 (4.08%) Cloud Engineer
5 2 (4.08%) DevOps Engineer
5 2 (4.08%) Infrastructure Engineer
5 2 (4.08%) Lead Developer
5 2 (4.08%) Project Manager
5 2 (4.08%) Python Engineer
5 2 (4.08%) Senior Linux Engineer
5 2 (4.08%) Technical Architect
Libraries, Frameworks & Software Standards
1 4 (8.16%) Node.js
2 3 (6.12%) Middleware
2 3 (6.12%) REST
2 3 (6.12%) RxJava
3 2 (4.08%) .NET
3 2 (4.08%) CSS
3 2 (4.08%) HTML
3 2 (4.08%) JAX-RS
3 2 (4.08%) React
3 2 (4.08%) Spring
3 2 (4.08%) Unity (Game Engine)
3 2 (4.08%) Web Services
4 1 (2.04%) Android SDK
4 1 (2.04%) iOS SDK
4 1 (2.04%) JNI
4 1 (2.04%) Mustache
4 1 (2.04%) Oracle Fusion
4 1 (2.04%) RESTful
4 1 (2.04%) Spring Boot
4 1 (2.04%) XML
Miscellaneous
1 10 (20.41%) Analytical Skills
2 2 (4.08%) Animation
2 2 (4.08%) Clustering
2 2 (4.08%) Fixed Income
2 2 (4.08%) User Experience
2 2 (4.08%) Virtual Team
3 1 (2.04%) Algorithms
3 1 (2.04%) Cloud Native
3 1 (2.04%) Data Centre
3 1 (2.04%) e-Learning
3 1 (2.04%) Management Information System
3 1 (2.04%) Reinsurance
3 1 (2.04%) Self-Motivation
3 1 (2.04%) Tandem
Operating Systems
1 14 (28.57%) Linux
2 11 (22.45%) Unix
3 8 (16.33%) Windows
4 4 (8.16%) Android
5 2 (4.08%) Red Hat Enterprise Linux
5 2 (4.08%) Windows 10
5 2 (4.08%) Windows Server
6 1 (2.04%) Apple iOS
6 1 (2.04%) Mac OS X
6 1 (2.04%) Ubuntu
6 1 (2.04%) Windows Server 2008
6 1 (2.04%) Windows Server 2012
6 1 (2.04%) Windows XP
Processes & Methodologies
1 15 (30.61%) Agile Software Development
2 10 (20.41%) Problem-Solving
3 8 (16.33%) Test Automation
4 7 (14.29%) DevOps
4 7 (14.29%) Open Source
5 6 (12.24%) Continuous Integration
5 6 (12.24%) Migration
6 5 (10.20%) Analytics
6 5 (10.20%) OO
7 4 (8.16%) Android Development
7 4 (8.16%) Business Intelligence
7 4 (8.16%) Computer Science
7 4 (8.16%) Configuration Management
7 4 (8.16%) High Availability
7 4 (8.16%) Line Management
7 4 (8.16%) Performance Analysis
7 4 (8.16%) Process Improvement
7 4 (8.16%) Scrum
7 4 (8.16%) Strategic Roadmap
7 4 (8.16%) Waterfall
Programming Languages
1 12 (24.49%) Java
2 11 (22.45%) C++
3 9 (18.37%) Python
4 8 (16.33%) JavaScript
5 7 (14.29%) C#
5 7 (14.29%) Perl
6 4 (8.16%) Kotlin
6 4 (8.16%) Shell Script
7 3 (6.12%) Bash Shell
7 3 (6.12%) SQL
8 2 (4.08%) Go
8 2 (4.08%) PL/SQL
8 2 (4.08%) Ruby
9 1 (2.04%) PowerShell
9 1 (2.04%) T-SQL
9 1 (2.04%) VB
9 1 (2.04%) VB.NET
9 1 (2.04%) VBA
Qualifications
1 8 (16.33%) Security Cleared
2 6 (12.24%) Degree
2 6 (12.24%) SC Cleared
3 3 (6.12%) ISTQB
4 1 (2.04%) BPSS Clearance
4 1 (2.04%) CISSP
4 1 (2.04%) Computer Science Degree
4 1 (2.04%) DBS Check
4 1 (2.04%) DV Cleared
4 1 (2.04%) Master's Degree
4 1 (2.04%) MBA
Quality Assurance & Compliance
1 1 (2.04%) Disclosure Scotland
1 1 (2.04%) WCAG
System Software
1 5 (10.20%) Docker
2 3 (6.12%) Virtual Machines
3 2 (4.08%) Active Directory
3 2 (4.08%) Veritas Cluster Server
3 2 (4.08%) VMware Infrastructure
4 1 (2.04%) VMware ESXi
4 1 (2.04%) VMware NSX
Systems Management
1 7 (14.29%) Kubernetes
2 4 (8.16%) Opscode Chef
2 4 (8.16%) Puppet
2 4 (8.16%) Salt
3 3 (6.12%) Ansible
4 2 (4.08%) Pacemaker
5 1 (2.04%) Grafana
5 1 (2.04%) Kibana
5 1 (2.04%) Microsoft Intune
5 1 (2.04%) Oracle Statspack
5 1 (2.04%) Prometheus
5 1 (2.04%) Terraform
5 1 (2.04%) vMotion
Vendors
1 8 (16.33%) Oracle
2 7 (14.29%) Microsoft
3 6 (12.24%) Google
4 5 (10.20%) Cisco
5 4 (8.16%) SaltStack
6 3 (6.12%) Palo Alto
6 3 (6.12%) Verint
7 2 (4.08%) HP
7 2 (4.08%) MuleSoft
7 2 (4.08%) OpenText
7 2 (4.08%) Red Hat
7 2 (4.08%) RightFax
7 2 (4.08%) Veritas
7 2 (4.08%) VMware
7 2 (4.08%) WSO2
8 1 (2.04%) Avaya
8 1 (2.04%) CheckPoint
8 1 (2.04%) Genesys
8 1 (2.04%) Juniper
8 1 (2.04%) Meraki