Period
to 26 October 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 26 October 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
26 Oct 2020
Same period 2019 Same period 2018
Rank 89 170 157
Rank change year-on-year +81 -13 +21
Contract jobs citing C 27 58 102
As % of all contract jobs advertised in the City of London 1.50% 0.98% 1.45%
As % of the Programming Languages category 3.07% 1.93% 2.68%
Number of daily rates quoted 16 43 88
Median daily rate £525 £525 £525
10th Percentile £220 £430 £425
90th Percentile £775 £792 £775
Central London median daily rate £525 £550 £525
% change year-on-year -4.55% +4.76% -
Number of hourly rates quoted 0 1 0
Median hourly rate - £63.33 -
Central London median hourly rate - £63.33 £18.70
% change year-on-year - +238.66% -56.00%

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 880 3,000 3,809
As % of all contract IT jobs advertised in the City of London 48.78% 50.51% 54.03%
Number of daily rates quoted 639 2,451 3,168
Median daily rate £525 £525 £525
10th Percentile £362 £400 £375
90th Percentile £691 £688 £684
Central London median daily rate £525 £525 £525
Number of hourly rates quoted 9 12 11
Median hourly rate £35.00 £36.28 £37.09
Median hourly rate % change year-on-year -3.53% -2.18% +72.51%
10th Percentile £12.75 £21.02 £12.50
90th Percentile £39.40 £55.18 £62.50
Median hourly rate £35.00 £28.00 £29.55
% change year-on-year +25.00% -5.23% +28.50%

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 26 October 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 26 October 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 (44.44%) Finance
2 8 (29.63%) SQL
2 8 (29.63%) Linux
2 8 (29.63%) Unix
2 8 (29.63%) DNS
3 7 (25.93%) Python
4 6 (22.22%) Perl
4 6 (22.22%) Firewall
4 6 (22.22%) Agile Software Development
5 5 (18.52%) CMS
5 5 (18.52%) Data Warehouse
5 5 (18.52%) LAN
5 5 (18.52%) Java
5 5 (18.52%) JavaScript
5 5 (18.52%) User Acceptance Testing
5 5 (18.52%) V-Model
5 5 (18.52%) Git (software)
5 5 (18.52%) Open Source
5 5 (18.52%) Jenkins
5 5 (18.52%) DevOps
5 5 (18.52%) Virtual Machines
6 4 (14.81%) Telepresence
6 4 (14.81%) Collaborative Working
6 4 (14.81%) Kubernetes
6 4 (14.81%) Skype
6 4 (14.81%) Management Information System
6 4 (14.81%) Problem-Solving
6 4 (14.81%) Antivirus Management
6 4 (14.81%) SaltStack
6 4 (14.81%) Salt

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 5 (18.52%) CMS
Cloud Services
1 4 (14.81%) IaaS
2 3 (11.11%) GCP
3 2 (7.41%) Apigee
3 2 (7.41%) AWS
3 2 (7.41%) Azure
4 1 (3.70%) AWS CloudFormation
Communications & Networking
1 8 (29.63%) DNS
2 6 (22.22%) Firewall
3 5 (18.52%) LAN
4 4 (14.81%) DHCP
4 4 (14.81%) Ethernet
4 4 (14.81%) H.323
4 4 (14.81%) Skype
4 4 (14.81%) Telepresence
4 4 (14.81%) Unified Communications
4 4 (14.81%) VoIP
4 4 (14.81%) WAN
5 3 (11.11%) Internet
5 3 (11.11%) Network Security
6 1 (3.70%) TCP/IP
Database & Business Intelligence
1 5 (18.52%) Data Warehouse
2 3 (11.11%) SQL Server
2 3 (11.11%) SQL Server 2008
3 1 (3.70%) OLAP
Development Applications
1 5 (18.52%) Git (software)
1 5 (18.52%) Jenkins
2 1 (3.70%) Cucumber
2 1 (3.70%) Grunt
2 1 (3.70%) gulp
2 1 (3.70%) Jasmine
2 1 (3.70%) Mocha
2 1 (3.70%) Subversion
General
1 12 (44.44%) Finance
2 3 (11.11%) Multimedia
3 2 (7.41%) Banking
3 2 (7.41%) Law
4 1 (3.70%) Investment Banking
4 1 (3.70%) Legal
4 1 (3.70%) Public Sector
4 1 (3.70%) Retail
Job Titles
1 5 (18.52%) Analyst
1 5 (18.52%) Business Analyst
1 5 (18.52%) Documentation Analyst
1 5 (18.52%) Insurance Business Analyst
2 4 (14.81%) Developer
2 4 (14.81%) Linux Engineer
3 2 (7.41%) Architect
3 2 (7.41%) IT Manager
3 2 (7.41%) Python Engineer
3 2 (7.41%) Ruby Engineer
3 2 (7.41%) Senior Linux Engineer
4 1 (3.70%) Android Developer
4 1 (3.70%) Cloud Architect
4 1 (3.70%) DevOps Engineer
4 1 (3.70%) Front End Developer (Client-Side Developer)
4 1 (3.70%) Linux Infrastructure Engineer
4 1 (3.70%) Security Tester
4 1 (3.70%) Senior Configuration Management Engineer
4 1 (3.70%) Supply Chain Architect
4 1 (3.70%) Test Validation Manager
Libraries, Frameworks & Software Standards
1 4 (14.81%) WebRTC
2 3 (11.11%) Node.js
3 2 (7.41%) JAX-RS
3 2 (7.41%) Middleware
3 2 (7.41%) REST
3 2 (7.41%) Web Services
4 1 (3.70%) CSS
4 1 (3.70%) HTML
4 1 (3.70%) Mustache
4 1 (3.70%) RxJava
Miscellaneous
1 4 (14.81%) Management Information System
1 4 (14.81%) Tandem
1 4 (14.81%) Video Conferencing
2 3 (11.11%) CCTV
3 2 (7.41%) Analytical Skills
3 2 (7.41%) Clustering
3 2 (7.41%) Fixed Income
3 2 (7.41%) Virtual Team
4 1 (3.70%) Data Centre
4 1 (3.70%) e-Learning
4 1 (3.70%) User Experience
Operating Systems
1 8 (29.63%) Linux
1 8 (29.63%) Unix
2 4 (14.81%) Windows
3 3 (11.11%) Windows 7
3 3 (11.11%) Windows Server 2008
4 2 (7.41%) Red Hat Enterprise Linux
5 1 (3.70%) Android
5 1 (3.70%) Mac OS X
Processes & Methodologies
1 6 (22.22%) Agile Software Development
2 5 (18.52%) DevOps
2 5 (18.52%) Open Source
2 5 (18.52%) User Acceptance Testing
2 5 (18.52%) V-Model
3 4 (14.81%) Antivirus Management
3 4 (14.81%) Capacity Planning
3 4 (14.81%) Collaborative Working
3 4 (14.81%) Configuration Management
3 4 (14.81%) Continuous Integration
3 4 (14.81%) High Availability
3 4 (14.81%) Problem-Solving
3 4 (14.81%) Test Automation
4 3 (11.11%) Disaster Recovery
4 3 (11.11%) Line Management
4 3 (11.11%) Service Desk Management
4 3 (11.11%) TDD
4 3 (11.11%) Validation
5 2 (7.41%) API Design
5 2 (7.41%) API Development
Programming Languages
1 8 (29.63%) SQL
2 7 (25.93%) Python
3 6 (22.22%) Perl
4 5 (18.52%) Java
4 5 (18.52%) JavaScript
5 4 (14.81%) C++
6 2 (7.41%) Ruby
7 1 (3.70%) Bash Shell
7 1 (3.70%) Go
7 1 (3.70%) Kotlin
Qualifications
1 4 (14.81%) CCIE
1 4 (14.81%) Cisco Certification
2 2 (7.41%) Security Cleared
3 1 (3.70%) BPSS Clearance
3 1 (3.70%) CISSP
3 1 (3.70%) DBS Check
3 1 (3.70%) SC Cleared
Quality Assurance & Compliance
1 1 (3.70%) Disclosure Scotland
1 1 (3.70%) WCAG
System Software
1 5 (18.52%) Virtual Machines
2 3 (11.11%) Docker
3 2 (7.41%) Veritas Cluster Server
Systems Management
1 4 (14.81%) Cisco CUCM
1 4 (14.81%) Kubernetes
1 4 (14.81%) Opscode Chef
1 4 (14.81%) Puppet
1 4 (14.81%) Salt
2 3 (11.11%) Ansible
2 3 (11.11%) MaaS360
3 2 (7.41%) Pacemaker
4 1 (3.70%) Grafana
4 1 (3.70%) Prometheus
4 1 (3.70%) Terraform
Vendors
1 4 (14.81%) Cisco
1 4 (14.81%) Microsoft
1 4 (14.81%) Polycom
1 4 (14.81%) SaltStack
1 4 (14.81%) Splunk
2 3 (11.11%) Apple
3 2 (7.41%) MuleSoft
3 2 (7.41%) Red Hat
3 2 (7.41%) Veritas
3 2 (7.41%) WSO2
4 1 (3.70%) Google
4 1 (3.70%) Oracle
4 1 (3.70%) Rapid7