Period
to 7 August 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 7 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
Central London > City of London
6 months to
7 Aug 2020
Same period 2019 Same period 2018
Rank 102 191 162
Rank change year-on-year +89 -29 -8
Contract jobs citing C 33 51 97
As % of all contract jobs advertised in the City of London 1.48% 0.78% 1.39%
As % of the Programming Languages category 2.99% 1.58% 2.60%
Number of daily rates quoted 18 35 80
Median daily rate £550 £550 £500
Median daily rate % change year-on-year - +10.00% -4.76%
10th Percentile £425 £405 £425
90th Percentile £705 £741 £778
Central London median daily rate £550 £550 £513
% change year-on-year - +7.32% -2.38%
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% -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 1,102 3,222 3,731
As % of all contract IT jobs advertised in the City of London 49.44% 49.55% 53.61%
Number of daily rates quoted 805 2,622 3,103
Median daily rate £525 £525 £525
10th Percentile £375 £406 £368
90th Percentile £688 £675 £700
Central London median daily rate £525 £525 £525
Number of hourly rates quoted 13 24 18
Median hourly rate £36.00 £35.00 £21.50
Median hourly rate % change year-on-year +2.86% +62.79% -6.49%
10th Percentile £25.35 £21.00 £12.50
90th Percentile £57.30 £56.50 £64.00
Median hourly rate £35.00 £35.00 £21.50
% change year-on-year - +62.79% -18.61%

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 7 August 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 7 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 City of London region with a requirement for C.

1 12 (36.36%) Finance
2 11 (33.33%) Linux
3 10 (30.30%) Java
3 10 (30.30%) C++
4 9 (27.27%) Python
5 8 (24.24%) Unix
6 7 (21.21%) JavaScript
6 7 (21.21%) Perl
6 7 (21.21%) Test Automation
6 7 (21.21%) AWS
6 7 (21.21%) Open Source
6 7 (21.21%) GCP
7 6 (18.18%) DevOps
7 6 (18.18%) Analytical Skills
7 6 (18.18%) Jenkins
7 6 (18.18%) Git (software)
7 6 (18.18%) Google
7 6 (18.18%) Agile Software Development
7 6 (18.18%) C#
8 5 (15.15%) OO
8 5 (15.15%) Oracle
8 5 (15.15%) Microsoft
8 5 (15.15%) Degree
8 5 (15.15%) Continuous Integration
8 5 (15.15%) Kubernetes
8 5 (15.15%) Analytics
9 4 (12.12%) SaltStack
9 4 (12.12%) Salt
9 4 (12.12%) Docker
9 4 (12.12%) IaaS

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 (3.03%) CMS
1 1 (3.03%) Elasticsearch
1 1 (3.03%) SharePoint
Applications
1 3 (9.09%) Microsoft Office
2 1 (3.03%) Microsoft Excel
2 1 (3.03%) Spreadsheet
Cloud Services
1 7 (21.21%) AWS
1 7 (21.21%) GCP
2 4 (12.12%) IaaS
3 2 (6.06%) Amazon ECS
3 2 (6.06%) Apigee
3 2 (6.06%) Azure
4 1 (3.03%) AWS CloudFormation
4 1 (3.03%) Google Play
4 1 (3.03%) Office 365
4 1 (3.03%) OneDrive
Communications & Networking
1 4 (12.12%) DHCP
1 4 (12.12%) DNS
2 3 (9.09%) Skype
2 3 (9.09%) Unified Communications
3 2 (6.06%) Firewall
3 2 (6.06%) Telepresence
3 2 (6.06%) VoIP
4 1 (3.03%) LAN
4 1 (3.03%) TCP/IP
Database & Business Intelligence
1 1 (3.03%) Big Data
1 1 (3.03%) MySQL
1 1 (3.03%) NonStop SQL
1 1 (3.03%) OLAP
1 1 (3.03%) SQL Server
Development Applications
1 6 (18.18%) Git (software)
1 6 (18.18%) Jenkins
2 3 (9.09%) Selenium
3 1 (3.03%) Cucumber
3 1 (3.03%) Grunt
3 1 (3.03%) gulp
3 1 (3.03%) Jasmine
3 1 (3.03%) Mocha
3 1 (3.03%) PowerBuilder
3 1 (3.03%) Subversion
General
1 12 (36.36%) Finance
2 4 (12.12%) Public Sector
3 2 (6.06%) Banking
3 2 (6.06%) Games
4 1 (3.03%) Investment Banking
4 1 (3.03%) Law
4 1 (3.03%) Pharmaceutical
4 1 (3.03%) Retail
Job Titles
1 11 (33.33%) Developer
2 4 (12.12%) Android Developer
2 4 (12.12%) Linux Engineer
3 3 (9.09%) Architect
3 3 (9.09%) Service Owner
4 2 (6.06%) Cloud Architect
4 2 (6.06%) DevOps Engineer
4 2 (6.06%) Project Manager
4 2 (6.06%) Python Engineer
4 2 (6.06%) Ruby Engineer
4 2 (6.06%) Senior Linux Engineer
4 2 (6.06%) Technical Architect
5 1 (3.03%) Infrastructure Engineer
5 1 (3.03%) Integration Manager
5 1 (3.03%) Lead Developer
5 1 (3.03%) Programmer
5 1 (3.03%) Senior Business Analyst
5 1 (3.03%) Senior Systems Engineer
5 1 (3.03%) Service Manager
5 1 (3.03%) Web Developer
Libraries, Frameworks & Software Standards
1 4 (12.12%) Node.js
2 3 (9.09%) REST
2 3 (9.09%) RxJava
3 2 (6.06%) CSS
3 2 (6.06%) HTML
3 2 (6.06%) JAX-RS
3 2 (6.06%) Middleware
3 2 (6.06%) Unity (Game Engine)
3 2 (6.06%) Web Services
4 1 (3.03%) Android SDK
4 1 (3.03%) iOS SDK
4 1 (3.03%) JNI
4 1 (3.03%) Material Design
4 1 (3.03%) Mustache
4 1 (3.03%) React
4 1 (3.03%) RESTful
4 1 (3.03%) Spring
4 1 (3.03%) Vue.js
Miscellaneous
1 6 (18.18%) Analytical Skills
2 2 (6.06%) Animation
2 2 (6.06%) Clustering
2 2 (6.06%) Fixed Income
2 2 (6.06%) User Experience
2 2 (6.06%) Virtual Team
3 1 (3.03%) Algorithms
3 1 (3.03%) Data Centre
3 1 (3.03%) e-Learning
3 1 (3.03%) Management Information System
3 1 (3.03%) Reinsurance
3 1 (3.03%) Self-Motivation
3 1 (3.03%) Tandem
Operating Systems
1 11 (33.33%) Linux
2 8 (24.24%) Unix
3 4 (12.12%) Android
4 3 (9.09%) Windows
5 2 (6.06%) Red Hat Enterprise Linux
6 1 (3.03%) Apple iOS
6 1 (3.03%) Mac OS X
6 1 (3.03%) Ubuntu
6 1 (3.03%) Windows Server
Processes & Methodologies
1 7 (21.21%) Open Source
1 7 (21.21%) Test Automation
2 6 (18.18%) Agile Software Development
2 6 (18.18%) DevOps
3 5 (15.15%) Analytics
3 5 (15.15%) Continuous Integration
3 5 (15.15%) OO
4 4 (12.12%) Android Development
4 4 (12.12%) Business Intelligence
4 4 (12.12%) Computer Science
4 4 (12.12%) Configuration Management
4 4 (12.12%) High Availability
4 4 (12.12%) Problem-Solving
5 3 (9.09%) Customer Requirements
5 3 (9.09%) Migration
5 3 (9.09%) MVVM
5 3 (9.09%) Scrum
5 3 (9.09%) Service Management
5 3 (9.09%) TDD
5 3 (9.09%) Validation
Programming Languages
1 10 (30.30%) C++
1 10 (30.30%) Java
2 9 (27.27%) Python
3 7 (21.21%) JavaScript
3 7 (21.21%) Perl
4 6 (18.18%) C#
5 4 (12.12%) Kotlin
6 2 (6.06%) Go
6 2 (6.06%) Ruby
6 2 (6.06%) SQL
7 1 (3.03%) Bash Shell
7 1 (3.03%) PL/SQL
7 1 (3.03%) PowerShell
7 1 (3.03%) Shell Script
7 1 (3.03%) T-SQL
7 1 (3.03%) VBA
Qualifications
1 5 (15.15%) Degree
2 3 (9.09%) ISTQB
2 3 (9.09%) Security Cleared
3 2 (6.06%) SC Cleared
4 1 (3.03%) BPSS Clearance
4 1 (3.03%) CISSP
4 1 (3.03%) Computer Science Degree
4 1 (3.03%) DBS Check
4 1 (3.03%) Master's Degree
4 1 (3.03%) MBA
Quality Assurance & Compliance
1 1 (3.03%) Disclosure Scotland
1 1 (3.03%) WCAG
System Software
1 4 (12.12%) Docker
2 2 (6.06%) Veritas Cluster Server
3 1 (3.03%) Virtual Machines
Systems Management
1 5 (15.15%) Kubernetes
2 4 (12.12%) Opscode Chef
2 4 (12.12%) Puppet
2 4 (12.12%) Salt
3 3 (9.09%) Ansible
4 2 (6.06%) Pacemaker
5 1 (3.03%) Grafana
5 1 (3.03%) Kibana
5 1 (3.03%) Prometheus
5 1 (3.03%) Terraform
Vendors
1 6 (18.18%) Google
2 5 (15.15%) Microsoft
2 5 (15.15%) Oracle
3 4 (12.12%) SaltStack
4 3 (9.09%) Cisco
4 3 (9.09%) Verint
5 2 (6.06%) MuleSoft
5 2 (6.06%) OpenText
5 2 (6.06%) Red Hat
5 2 (6.06%) RightFax
5 2 (6.06%) Veritas
5 2 (6.06%) WSO2
6 1 (3.03%) Avaya
6 1 (3.03%) Genesys
6 1 (3.03%) HP
6 1 (3.03%) Rapid7