Period
to 2 July 2020

The following table provides summary statistics for contract job vacancies advertised in 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 2 July 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
England > London
6 months to
2 Jul 2020
Same period 2019 Same period 2018
Rank 167 250 212
Rank change year-on-year +83 -38 -42
Contract jobs citing C 257 443 609
As % of all contract jobs advertised in London 1.46% 1.08% 1.33%
As % of the Programming Languages category 2.93% 2.28% 2.72%
Number of daily rates quoted 163 305 437
Median daily rate £525 £525 £538
Median daily rate % change year-on-year - -2.33% +7.50%
10th Percentile £363 £303 £363
90th Percentile £723 £758 £750
England median daily rate £488 £450 £475
% change year-on-year +8.33% -5.26% +5.56%
Number of hourly rates quoted 6 7 32
Median hourly rate £50.00 £50.00 £43.75
Median hourly rate % change year-on-year - +14.29% -2.78%
10th Percentile £26.00 £30.45 £20.25
90th Percentile £83.13 £54.25 £47.50
England median hourly rate £46.00 £45.00 £42.50
% change year-on-year +2.22% +5.88% -

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 London with a requirement for coding skills.

All Programming Languages
London
Contract vacancies with a requirement for coding skills 8,785 19,469 22,400
As % of all contract IT jobs advertised in London 49.91% 47.59% 48.82%
Number of daily rates quoted 6,288 14,728 17,082
Median daily rate £525 £525 £510
Median daily rate % change year-on-year - +2.94% +4.08%
10th Percentile £363 £363 £358
90th Percentile £713 £688 £675
England median daily rate £500 £480 £475
% change year-on-year +4.17% +1.05% +5.56%
Number of hourly rates quoted 103 119 198
Median hourly rate £35.00 £36.67 £42.50
Median hourly rate % change year-on-year -4.55% -13.72% +6.25%
10th Percentile £23.82 £20.25 £17.85
90th Percentile £63.75 £60.85 £68.25
Median hourly rate £35.00 £43.50 £41.50
% change year-on-year -19.54% +4.82% +0.61%

C
Job Vacancy Trend in London

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

Job vacancy trend for C in London

C
Contractor Daily Rate Trend in London

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

Daily rate trend for C in London

C
Daily Rate Histogram in London

Daily rate distribution for jobs citing C in London over the 6 months to 2 July 2020.

Daily rate histogram for C in London

C
Contractor Hourly Rate Trend in London

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

Hourly rate trend for C in London

C
Hourly Rate Histogram in London

Hourly rate distribution of jobs citing C in London over the 6 months to 2 July 2020.

Hourly rate histogram for C in London

C
Contract Job Locations in 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 London region over the 6 months to 2 July 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
Central London +97 49 £538 +1.42% 14
West London +25 14 £425 -15.00% 9
South London +35 7 £325 -35.00% 3
North London - 3 £500 - 3
C
England

For the 6 months to 2 July 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 London region with a requirement for C.

1 74 (28.79%) Linux
2 64 (24.90%) Agile Software Development
3 63 (24.51%) Finance
4 56 (21.79%) Security Cleared
5 53 (20.62%) C++
6 51 (19.84%) Java
7 48 (18.68%) Oracle
8 46 (17.90%) SC Cleared
9 45 (17.51%) Windows
9 45 (17.51%) Python
10 39 (15.18%) Shell Script
11 38 (14.79%) Azure
12 35 (13.62%) DNS
12 35 (13.62%) JavaScript
13 32 (12.45%) Analytical Skills
14 30 (11.67%) SaaS
15 28 (10.89%) DevOps
16 27 (10.51%) PaaS
16 27 (10.51%) Unix
16 27 (10.51%) Microsoft
17 25 (9.73%) AWS
17 25 (9.73%) Git (software)
17 25 (9.73%) DV Cleared
17 25 (9.73%) Jenkins
17 25 (9.73%) Problem-Solving
18 23 (8.95%) TCP/IP
18 23 (8.95%) VPN
18 23 (8.95%) Bash Shell
19 22 (8.56%) DMZ
19 22 (8.56%) C#

C
Co-occurring IT Skills in 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 17 (6.61%) Oracle SOA Suite
2 16 (6.23%) WebLogic
3 7 (2.72%) Apache
4 5 (1.95%) CMS
4 5 (1.95%) Elasticsearch
5 4 (1.56%) Exchange Server 2010
5 4 (1.56%) MS Exchange
5 4 (1.56%) Tomcat
6 3 (1.17%) Oracle Application Server
6 3 (1.17%) SharePoint
7 2 (0.78%) Apache Spark
7 2 (0.78%) Exchange Server 2013
7 2 (0.78%) Oracle 10gAS
8 1 (0.39%) Apache Qpid
8 1 (0.39%) ArcGIS
8 1 (0.39%) BizTalk Server
8 1 (0.39%) Drupal
8 1 (0.39%) OpenStack
8 1 (0.39%) SharePoint 2010
8 1 (0.39%) Skype for Business
Applications
1 9 (3.50%) Microsoft Office
2 6 (2.33%) Microsoft Excel
3 1 (0.39%) GNU Octave
3 1 (0.39%) Photoshop
3 1 (0.39%) Spreadsheet
Business Applications
1 9 (3.50%) ION MarketView
2 3 (1.17%) Oracle ERP
2 3 (1.17%) SAP Convergent Charging
2 3 (1.17%) SAP S/4HANA
3 2 (0.78%) JDE OneWorld
3 2 (0.78%) NetSuite
4 1 (0.39%) Dynamics AX
4 1 (0.39%) FINCAD Analytics
4 1 (0.39%) Remedy ITSM
4 1 (0.39%) RMDS
4 1 (0.39%) Sage BI
4 1 (0.39%) SAP Oil and Gas
Cloud Services
1 38 (14.79%) Azure
2 30 (11.67%) SaaS
3 27 (10.51%) PaaS
4 25 (9.73%) AWS
5 12 (4.67%) GCP
6 8 (3.11%) IaaS
6 8 (3.11%) Office 365
7 5 (1.95%) Cloud Computing
8 4 (1.56%) Amazon ECS
9 3 (1.17%) GitHub
9 3 (1.17%) OpenShift
10 2 (0.78%) AWS CloudFormation
10 2 (0.78%) Azure Active Directory
10 2 (0.78%) Dynamics 365
10 2 (0.78%) Mimecast
10 2 (0.78%) OneDrive
10 2 (0.78%) Power Platform
11 1 (0.39%) AWS Step Functions
11 1 (0.39%) Azure Data Factory
11 1 (0.39%) npm
Communications & Networking
1 35 (13.62%) DNS
2 23 (8.95%) TCP/IP
2 23 (8.95%) VPN
3 22 (8.56%) DMZ
3 22 (8.56%) Firewall
4 20 (7.78%) Internet
5 17 (6.61%) LAN
6 15 (5.84%) IPv6
7 14 (5.45%) Network Security
8 13 (5.06%) DHCP
8 13 (5.06%) IPv4
8 13 (5.06%) WAN
9 12 (4.67%) OSPF
10 11 (4.28%) VoIP
11 10 (3.89%) SNMP
11 10 (3.89%) TACACS
12 7 (2.72%) HTTP
12 7 (2.72%) PBX
12 7 (2.72%) RTP
13 5 (1.95%) HTTPS
Database & Business Intelligence
1 15 (5.84%) Oracle ODI
2 11 (4.28%) SQL Server
3 9 (3.50%) Big Data
4 5 (1.95%) Data Warehouse
4 5 (1.95%) Oracle Database
5 4 (1.56%) Data Lake
5 4 (1.56%) MongoDB
5 4 (1.56%) MySQL
5 4 (1.56%) Oracle Database 11g
5 4 (1.56%) Oracle Database 12c
5 4 (1.56%) SAP HANA
5 4 (1.56%) Triplestore
6 3 (1.17%) Amazon Redshift
6 3 (1.17%) Hadoop
6 3 (1.17%) Oracle Database 10g
6 3 (1.17%) Oracle Reports
6 3 (1.17%) PostgreSQL
6 3 (1.17%) SQL Server 2012
6 3 (1.17%) TKPROF
7 2 (0.78%) IDOL
Development Applications
1 25 (9.73%) Git (software)
1 25 (9.73%) Jenkins
2 7 (2.72%) JIRA
3 6 (2.33%) Selenium
4 4 (1.56%) Android Studio
4 4 (1.56%) Eclipse
4 4 (1.56%) Postman
4 4 (1.56%) webpack
5 3 (1.17%) CircleCI
5 3 (1.17%) ClearCase
5 3 (1.17%) Oracle Forms
5 3 (1.17%) Subversion
6 2 (0.78%) GitLab
6 2 (0.78%) Grunt
6 2 (0.78%) gulp
6 2 (0.78%) JUnit
6 2 (0.78%) Sonatype Nexus
6 2 (0.78%) Visual Studio
6 2 (0.78%) WebDriver
7 1 (0.39%) PVCS
General
1 63 (24.51%) Finance
2 22 (8.56%) Public Sector
3 12 (4.67%) Banking
4 9 (3.50%) Investment Banking
5 6 (2.33%) Front Office
6 5 (1.95%) Electronics
6 5 (1.95%) Publishing
7 4 (1.56%) Games
7 4 (1.56%) Telecoms
8 3 (1.17%) Billing
8 3 (1.17%) Legal
8 3 (1.17%) Marketing
9 2 (0.78%) Retail
10 1 (0.39%) Dutch Language
10 1 (0.39%) French Language
10 1 (0.39%) German Language
10 1 (0.39%) Hebrew Language
10 1 (0.39%) Italian Language
10 1 (0.39%) Mandarin Language
10 1 (0.39%) Spanish Language
Job Titles
1 88 (34.24%) Developer
2 24 (9.34%) Architect
3 21 (8.17%) Senior Developer
4 20 (7.78%) Analyst
5 15 (5.84%) Business Analyst
6 14 (5.45%) Consultant
7 11 (4.28%) Android Developer
7 11 (4.28%) C Developer
8 10 (3.89%) Cloud Developer
9 9 (3.50%) Cloud Architect
9 9 (3.50%) Java Developer
10 8 (3.11%) DevOps Engineer
10 8 (3.11%) Electronic Trading Developer
10 8 (3.11%) Electronic Trading Java Developer
10 8 (3.11%) Investment Banking Java Developer
11 7 (2.72%) Cloud Engineer
11 7 (2.72%) Data Architect
11 7 (2.72%) Linux Engineer
11 7 (2.72%) Senior VoIP Developer
11 7 (2.72%) VoIP Developer
Libraries, Frameworks & Software Standards
1 21 (8.17%) Oracle Fusion
2 17 (6.61%) .NET
3 15 (5.84%) SAML
3 15 (5.84%) Web Services
4 14 (5.45%) CSS
4 14 (5.45%) HTML
5 12 (4.67%) REST
6 11 (4.28%) XML
7 10 (3.89%) JNI
8 9 (3.50%) Node.js
9 8 (3.11%) React
10 7 (2.72%) JSON
11 6 (2.33%) .NET Core
11 6 (2.33%) Android SDK
11 6 (2.33%) POSIX
11 6 (2.33%) RESTful
11 6 (2.33%) RxJava
11 6 (2.33%) SOAP
12 5 (1.95%) .NET Framework
12 5 (1.95%) Middleware
Miscellaneous
1 32 (12.45%) Analytical Skills
2 18 (7.00%) User Experience
3 15 (5.84%) Self-Motivation
4 11 (4.28%) Foreign Exchange (FX)
4 11 (4.28%) Greenfield Project
5 10 (3.89%) Equities
6 7 (2.72%) Media Streaming
7 6 (2.33%) Device Driver
7 6 (2.33%) NHS
8 4 (1.56%) Algorithms
8 4 (1.56%) Animation
8 4 (1.56%) Clustering
8 4 (1.56%) Management Information System
8 4 (1.56%) Mobile App
8 4 (1.56%) Taxonomies
8 4 (1.56%) Virtual Team
9 3 (1.17%) Cloud Native
9 3 (1.17%) Data Structures
9 3 (1.17%) Replication
9 3 (1.17%) Video on Demand
Operating Systems
1 74 (28.79%) Linux
2 45 (17.51%) Windows
3 27 (10.51%) Unix
4 22 (8.56%) Windows Server
5 15 (5.84%) Android
6 11 (4.28%) Windows Server 2012
7 10 (3.89%) Windows Server 2008
8 8 (3.11%) Red Hat Enterprise Linux
8 8 (3.11%) Windows Server 2016
9 7 (2.72%) Apple iOS
9 7 (2.72%) Windows 10
10 3 (1.17%) Embedded Linux
10 3 (1.17%) Ubuntu
10 3 (1.17%) Windows 7
10 3 (1.17%) Windows Server 2019
10 3 (1.17%) Windows XP
11 2 (0.78%) CentOS
11 2 (0.78%) Mac OS X
11 2 (0.78%) Windows Server 2003
12 1 (0.39%) Oracle Linux
Processes & Methodologies
1 64 (24.90%) Agile Software Development
2 28 (10.89%) DevOps
3 25 (9.73%) Problem-Solving
4 21 (8.17%) Test Automation
5 20 (7.78%) Dashboard Development
6 18 (7.00%) Business Intelligence
6 18 (7.00%) Continuous Integration
6 18 (7.00%) SOA
7 17 (6.61%) Migration
7 17 (6.61%) SDLC
8 16 (6.23%) Waterfall
9 15 (5.84%) Multi-Factor Authentication
9 15 (5.84%) Two-Factor Authentication
10 14 (5.45%) Network Virtualisation
10 14 (5.45%) OO
11 13 (5.06%) Android Development
11 13 (5.06%) Configuration Management
11 13 (5.06%) Multithreading
11 13 (5.06%) Requirements Gathering
12 12 (4.67%) Analytics
Programming Languages
1 53 (20.62%) C++
2 51 (19.84%) Java
3 45 (17.51%) Python
4 39 (15.18%) Shell Script
5 35 (13.62%) JavaScript
6 23 (8.95%) Bash Shell
7 22 (8.56%) C#
7 22 (8.56%) SQL
8 20 (7.78%) Perl
9 9 (3.50%) Embedded C
10 8 (3.11%) Kotlin
11 7 (2.72%) Go
12 6 (2.33%) PL/SQL
12 6 (2.33%) T-SQL
13 5 (1.95%) PowerShell
13 5 (1.95%) Ruby
13 5 (1.95%) VB
14 4 (1.56%) Apple Swift
14 4 (1.56%) SPARQL
14 4 (1.56%) VB.NET
Qualifications
1 56 (21.79%) Security Cleared
2 46 (17.90%) SC Cleared
3 25 (9.73%) DV Cleared
4 18 (7.00%) Degree
5 4 (1.56%) ISTQB
6 3 (1.17%) Computer Science Degree
6 3 (1.17%) Master's Degree
6 3 (1.17%) Microsoft Certification
7 2 (0.78%) Cisco Certification
7 2 (0.78%) ITIL Certification
7 2 (0.78%) MCSE
8 1 (0.39%) CCNA
8 1 (0.39%) CISSP
8 1 (0.39%) CTC Cleared
8 1 (0.39%) GIAC
8 1 (0.39%) Linux+ Certification
8 1 (0.39%) MBA
8 1 (0.39%) Network+ Certification
8 1 (0.39%) SSCP
8 1 (0.39%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 6 (2.33%) QA
2 3 (1.17%) PMO
2 3 (1.17%) SLA
3 2 (0.78%) Disclosure Scotland
3 2 (0.78%) GAAP
3 2 (0.78%) IFRS
3 2 (0.78%) WCAG
4 1 (0.39%) Data Quality
System Software
1 15 (5.84%) Virtual Machines
2 14 (5.45%) Docker
2 14 (5.45%) VMware Infrastructure
3 10 (3.89%) Active Directory
4 8 (3.11%) VMware ESXi
5 5 (1.95%) NFS
6 4 (1.56%) vSphere
7 3 (1.17%) Veritas Cluster Server
7 3 (1.17%) XenApp
8 2 (0.78%) Citrix Hypervisor
8 2 (0.78%) Firmware
8 2 (0.78%) Hyper-V
8 2 (0.78%) Terminal Server
8 2 (0.78%) VMware NSX
9 1 (0.39%) Samba
9 1 (0.39%) Virtual Servers
9 1 (0.39%) VirtualBox
9 1 (0.39%) Xen
Systems Management
1 15 (5.84%) Kubernetes
2 13 (5.06%) Ansible
2 13 (5.06%) Single Sign-On
3 11 (4.28%) Opscode Chef
3 11 (4.28%) Puppet
4 8 (3.11%) Salt
5 4 (1.56%) vCenter Server
6 3 (1.17%) Oracle Statspack
6 3 (1.17%) Pacemaker
6 3 (1.17%) Terraform
6 3 (1.17%) vMotion
7 2 (0.78%) Kibana
7 2 (0.78%) Microsoft Intune
8 1 (0.39%) AirWatch
8 1 (0.39%) Cisco CUCM
8 1 (0.39%) MIIS
8 1 (0.39%) Nagios
8 1 (0.39%) NetBackup
8 1 (0.39%) OpenNMS
8 1 (0.39%) ZABBIX
Vendors
1 48 (18.68%) Oracle
2 27 (10.51%) Microsoft
3 17 (6.61%) VMware
4 10 (3.89%) Cisco
5 9 (3.50%) Google
5 9 (3.50%) ION Trading
5 9 (3.50%) SAP
6 8 (3.11%) HP
7 7 (2.72%) SaltStack
8 6 (2.33%) Citrix
9 5 (1.95%) IBM
10 4 (1.56%) Dell
10 4 (1.56%) NetApp
10 4 (1.56%) Red Hat
11 3 (1.17%) Northgate
11 3 (1.17%) Verint
11 3 (1.17%) Veritas
12 2 (0.78%) RightFax
12 2 (0.78%) Salesforce.com
12 2 (0.78%) Solace