Period
to 18 January 2021

The following table provides summary statistics for contract job vacancies 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 18 January 2021 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
UK
6 months to
18 Jan 2021
Same period 2020 Same period 2019
Rank 120 121 169
Rank change year-on-year +1 +48 +1
Contract jobs citing C 872 1,474 1,668
As % of all contract jobs advertised in the UK 2.13% 2.04% 1.68%
As % of the Programming Languages category 5.13% 5.00% 3.78%
Number of daily rates quoted 580 865 927
Median daily rate £500 £450 £450
Median daily rate % change year-on-year +11.11% - -
10th Percentile £300 £313 £308
90th Percentile £698 £625 £650
UK excluding London median daily rate £413 £450 £413
% change year-on-year -8.33% +9.09% +3.13%
Number of hourly rates quoted 152 182 194
Median hourly rate £42.50 £45.00 £42.50
Median hourly rate % change year-on-year -5.56% +5.88% +3.66%
10th Percentile £11.17 £27.05 £18.70
90th Percentile £66.00 £53.75 £51.25
UK excluding London median hourly rate £42.50 £45.00 £42.50
% change year-on-year -5.56% +5.88% +3.66%

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 with a requirement for coding skills.

All Programming Languages
UK
Contract vacancies with a requirement for coding skills 16,996 29,489 44,133
As % of all contract IT jobs advertised in the UK 41.46% 40.80% 44.36%
Number of daily rates quoted 11,828 20,635 31,341
Median daily rate £475 £475 £475
10th Percentile £313 £325 £319
90th Percentile £663 £650 £650
UK excluding London median daily rate £425 £430 £425
% change year-on-year -1.16% +1.18% +6.25%
Number of hourly rates quoted 399 539 644
Median hourly rate £42.50 £43.50 £42.22
Median hourly rate % change year-on-year -2.30% +3.03% +5.55%
10th Percentile £13.34 £16.55 £16.76
90th Percentile £58.75 £55.00 £51.25
Median hourly rate £42.25 £42.50 £42.50
% change year-on-year -0.59% - +6.25%

C
Job Vacancy Trend

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

Job vacancy trend for C in the UK

C
Contractor Daily Rate Trend

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

Daily rate trend for C in the UK

C
Daily Rate Histogram

Daily rate distribution for jobs citing C over the 6 months to 18 January 2021.

Daily rate histogram for C in the UK

C
Contractor Hourly Rate Trend

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

Hourly rate trend for C in the UK

C
Hourly Rate Histogram

Hourly rate distribution of jobs citing C over the 6 months to 18 January 2021.

Hourly rate histogram for C in the UK

C
Top 17 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing C within the UK over the 6 months to 18 January 2021. 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
England +5 751 £475 +5.56% 702
UK excluding London -4 436 £413 -8.33% 601
London +65 310 £525 - 165
Work from Home -57 172 £500 +27.39% 102
South East +33 148 £419 -6.94% 124
East of England +10 88 £393 -12.78% 92
South West -21 75 £465 +3.33% 99
North of England +54 62 £344 -6.59% 128
Midlands +9 42 £400 -5.88% 93
West Midlands +7 34 £375 -14.29% 60
North West +39 27 £400 +6.67% 62
Yorkshire +54 23 £338 -15.63% 49
North East +15 12 £160 -54.29% 18
Wales +16 11 £320 -14.67% 15
Scotland +38 9 £504 +0.80% 25
East Midlands +32 8 £400 - 33
Northern Ireland +8 4 £350 -12.50% 25

For the 6 months to 18 January 2021, 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 with a requirement for C.

1 247 (28.33%) Agile Software Development
2 236 (27.06%) C++
3 199 (22.82%) Security Cleared
4 190 (21.79%) Python
5 165 (18.92%) Software Engineering
6 162 (18.58%) Linux
7 150 (17.20%) SC Cleared
8 132 (15.14%) Finance
9 131 (15.02%) Java
10 110 (12.61%) SQL
11 101 (11.58%) Problem-Solving
12 94 (10.78%) Windows
13 80 (9.17%) Microsoft
14 79 (9.06%) JIRA
15 78 (8.94%) Scrum
16 77 (8.83%) Oracle
17 75 (8.60%) DevOps
18 73 (8.37%) Git (software)
19 69 (7.91%) Migration
20 68 (7.80%) AWS
21 67 (7.68%) Telecoms
22 64 (7.34%) Wi-Fi
23 63 (7.22%) Analytical Skills
24 62 (7.11%) Azure
25 61 (7.00%) C#
25 61 (7.00%) Unix
26 59 (6.77%) Degree
27 57 (6.54%) DV Cleared
27 57 (6.54%) Embedded C
28 56 (6.42%) Electronics

C
Co-occurring IT Skills 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 39 (4.47%) Confluence
2 17 (1.95%) CMS
3 10 (1.15%) ArcGIS
4 9 (1.03%) Apache
4 9 (1.03%) IIS
4 9 (1.03%) SharePoint
5 7 (0.80%) WebLogic
6 5 (0.57%) Elasticsearch
6 5 (0.57%) JBoss
6 5 (0.57%) Oracle SOA Suite
7 4 (0.46%) SAP Portal
7 4 (0.46%) SAS
8 3 (0.34%) Apache Airflow
8 3 (0.34%) Exchange Server 2013
8 3 (0.34%) MS Exchange
8 3 (0.34%) Red Hat Fuse
8 3 (0.34%) Tomcat
9 2 (0.23%) Apache Spark
9 2 (0.23%) LiveLink
9 2 (0.23%) MQSeries
Applications
1 32 (3.67%) Microsoft Office
2 17 (1.95%) Microsoft Excel
3 14 (1.61%) Microsoft PowerPoint
3 14 (1.61%) MS Visio
4 11 (1.26%) Photoshop
5 10 (1.15%) Simulink
6 5 (0.57%) Spreadsheet
7 3 (0.34%) Microsoft Project
8 1 (0.11%) Adobe After Effects
8 1 (0.11%) Adobe Creative Suite
8 1 (0.11%) Adobe Illustrator
8 1 (0.11%) Adobe Premiere
8 1 (0.11%) AutoCAD
8 1 (0.11%) Chatbot
8 1 (0.11%) CINEMA 4D
8 1 (0.11%) PTC Creo
8 1 (0.11%) Siemens NX
8 1 (0.11%) SPSS
Business Applications
1 8 (0.92%) ION MarketView
2 5 (0.57%) Dynamics CRM
2 5 (0.57%) SAP Hybris
3 4 (0.46%) SAP CO
3 4 (0.46%) SAP FI
3 4 (0.46%) SAP FI/CO
3 4 (0.46%) SAP PSCD
4 3 (0.34%) Lorenzo
5 2 (0.23%) Dynamics AX
5 2 (0.23%) Dynamics GP
5 2 (0.23%) Dynamics NAV
5 2 (0.23%) Oracle Retail
5 2 (0.23%) SAP S/4HANA
5 2 (0.23%) Sparx Enterprise Architect
6 1 (0.11%) Magento
6 1 (0.11%) Oracle Applications
6 1 (0.11%) Oracle BRM
6 1 (0.11%) Oracle ERP
6 1 (0.11%) SAP SD
6 1 (0.11%) Teamcenter
Cloud Services
1 68 (7.80%) AWS
2 62 (7.11%) Azure
3 27 (3.10%) GCP
4 20 (2.29%) Power Platform
5 19 (2.18%) GitHub
6 13 (1.49%) Office 365
7 8 (0.92%) Cloud Computing
8 7 (0.80%) Amazon ElastiCache
8 7 (0.80%) Dynamics 365
9 6 (0.69%) AWS CloudFormation
9 6 (0.69%) SaaS
9 6 (0.69%) Serverless
10 5 (0.57%) IaaS
10 5 (0.57%) PowerApps
11 4 (0.46%) Amazon EKS
11 4 (0.46%) AWS Lambda
11 4 (0.46%) Azure Data Factory
11 4 (0.46%) PaaS
12 3 (0.34%) Power Automate
12 3 (0.34%) Virtual Private Cloud
Communications & Networking
1 64 (7.34%) Wi-Fi
2 48 (5.50%) TCP/IP
3 39 (4.47%) DHCP
4 33 (3.78%) IPv6
5 29 (3.33%) Bluetooth
6 28 (3.21%) Wireless
7 24 (2.75%) IPv4
8 23 (2.64%) DNS
8 23 (2.64%) WAN
9 22 (2.52%) HTTP
9 22 (2.52%) VoIP
10 20 (2.29%) 5G
10 20 (2.29%) Firewall
11 17 (1.95%) 2G
11 17 (1.95%) LAN
12 15 (1.72%) GSM
13 14 (1.61%) Internet
13 14 (1.61%) MVNO
13 14 (1.61%) Packet Switching
14 12 (1.38%) RS-485
Database & Business Intelligence
1 39 (4.47%) SQL Server
2 17 (1.95%) Power BI
3 15 (1.72%) PostgreSQL
4 13 (1.49%) Data Warehouse
5 12 (1.38%) Big Data
5 12 (1.38%) MySQL
6 11 (1.26%) SQL Server Integration Services
7 10 (1.15%) GIS
8 8 (0.92%) Amazon RDS
8 8 (0.92%) SQL Server Reporting Services
9 7 (0.80%) Data Lake
10 6 (0.69%) Hadoop
10 6 (0.69%) NoSQL
10 6 (0.69%) Oracle Database
10 6 (0.69%) Relational Database
10 6 (0.69%) SQL Server 2008
11 5 (0.57%) Electronic Patient Records
12 4 (0.46%) IBM InfoSphere
12 4 (0.46%) Pentaho
12 4 (0.46%) Qlik Sense
Development Applications
1 79 (9.06%) JIRA
2 73 (8.37%) Git (software)
3 32 (3.67%) Jenkins
4 20 (2.29%) CA Gen
5 18 (2.06%) Visual Studio
6 15 (1.72%) Rational Rhapsody
7 14 (1.61%) GDB
7 14 (1.61%) GitLab
7 14 (1.61%) Selenium
8 11 (1.26%) Maven
9 10 (1.15%) Subversion
10 9 (1.03%) Sonatype Nexus
11 8 (0.92%) Artifactory
11 8 (0.92%) PVCS
12 7 (0.80%) Atlassian Bamboo
12 7 (0.80%) ProC
13 6 (0.69%) Bitbucket
13 6 (0.69%) CircleCI
13 6 (0.69%) git-flow
14 5 (0.57%) Grunt
General
1 132 (15.14%) Finance
2 67 (7.68%) Telecoms
3 56 (6.42%) Electronics
4 48 (5.50%) Public Sector
5 37 (4.24%) Law
6 28 (3.21%) Banking
7 22 (2.52%) Aerospace
8 19 (2.18%) Manufacturing
8 19 (2.18%) Marketing
9 16 (1.83%) Investment Banking
10 13 (1.49%) Games
10 13 (1.49%) Retail
11 7 (0.80%) Automotive
11 7 (0.80%) Front Office
12 6 (0.69%) Legal
12 6 (0.69%) Military
13 5 (0.57%) Billing
14 4 (0.46%) Back Office
14 4 (0.46%) Multimedia
15 3 (0.34%) Pharmaceutical
Job Titles
1 187 (21.44%) Developer
2 124 (14.22%) Software Engineer
3 64 (7.34%) Embedded Engineer
4 57 (6.54%) Embedded Software Engineer
5 53 (6.08%) Architect
6 45 (5.16%) Analyst
7 44 (5.05%) Project Manager
8 36 (4.13%) C Software Engineer
9 34 (3.90%) C++ Software Engineer
10 31 (3.56%) Software Developer
11 30 (3.44%) Consultant
12 29 (3.33%) C++ Developer
13 28 (3.21%) C/C++ Software Engineer
14 26 (2.98%) Test Engineer
15 23 (2.64%) Support Engineer
16 21 (2.41%) C Developer
17 18 (2.06%) Java Developer
17 18 (2.06%) Security Engineer
17 18 (2.06%) Senior Developer
18 17 (1.95%) Business Analyst
Libraries, Frameworks & Software Standards
1 39 (4.47%) Web Services
2 34 (3.90%) HTML
3 31 (3.56%) .NET
4 26 (2.98%) REST
5 25 (2.87%) POSIX
6 24 (2.75%) Yocto
7 23 (2.64%) XML
8 22 (2.52%) CSS
9 19 (2.18%) HTML5
10 18 (2.06%) JSON
11 17 (1.95%) Node.js
12 11 (1.26%) JNI
12 11 (1.26%) STL
13 10 (1.15%) Qt
13 10 (1.15%) React
13 10 (1.15%) Spring
14 9 (1.03%) CSS3
14 9 (1.03%) Middleware
14 9 (1.03%) PyTorch
15 8 (0.92%) SOAP
Miscellaneous
1 63 (7.22%) Analytical Skills
2 42 (4.82%) Device Driver
3 30 (3.44%) Embedded Systems
4 28 (3.21%) Greenfield Project
5 26 (2.98%) Management Information System
5 26 (2.98%) Self-Motivation
6 21 (2.41%) Algorithms
7 18 (2.06%) Derivative
7 18 (2.06%) Fixed Income
8 17 (1.95%) Data Centre
9 16 (1.83%) Credit Derivative
9 16 (1.83%) Hedge funds
9 16 (1.83%) PMI
10 15 (1.72%) STB
10 15 (1.72%) Video Conferencing
11 13 (1.49%) User Experience
12 11 (1.26%) Foreign Exchange (FX)
12 11 (1.26%) Mobile App
13 10 (1.15%) Equities
13 10 (1.15%) Media Streaming
Operating Systems
1 162 (18.58%) Linux
2 94 (10.78%) Windows
3 61 (7.00%) Unix
4 36 (4.13%) Android
5 30 (3.44%) Windows 10
6 23 (2.64%) Embedded Linux
7 21 (2.41%) Windows Server
8 20 (2.29%) Apple iOS
8 20 (2.29%) Windows 7
8 20 (2.29%) Windows Server 2012
9 18 (2.06%) Red Hat Enterprise Linux
10 17 (1.95%) AIX
11 15 (1.72%) Windows Server 2008
12 14 (1.61%) Mac OS
12 14 (1.61%) Windows Server 2016
13 11 (1.26%) OpenWrt
14 10 (1.15%) Solaris
14 10 (1.15%) Windows Server 2019
15 9 (1.03%) OpenVMS
16 5 (0.57%) Debian
Processes & Methodologies
1 247 (28.33%) Agile Software Development
2 165 (18.92%) Software Engineering
3 101 (11.58%) Problem-Solving
4 78 (8.94%) Scrum
5 75 (8.60%) DevOps
6 69 (7.91%) Migration
7 51 (5.85%) Mathematics
8 50 (5.73%) Stakeholder Management
9 48 (5.50%) ITIL
9 48 (5.50%) Project Delivery
10 47 (5.39%) Continuous Integration
11 44 (5.05%) TDD
12 43 (4.93%) Open Source
13 39 (4.47%) UML
14 38 (4.36%) Business Intelligence
14 38 (4.36%) Mentoring
14 38 (4.36%) Test Automation
15 37 (4.24%) Configuration Management
15 37 (4.24%) Data Modelling
15 37 (4.24%) Project Management
Programming Languages
1 236 (27.06%) C++
2 190 (21.79%) Python
3 131 (15.02%) Java
4 110 (12.61%) SQL
5 61 (7.00%) C#
6 57 (6.54%) Embedded C
7 44 (5.05%) JavaScript
8 42 (4.82%) PowerShell
9 36 (4.13%) Shell Script
10 33 (3.78%) PL/SQL
11 29 (3.33%) Bash Shell
12 28 (3.21%) Perl
13 27 (3.10%) Embedded C++
14 23 (2.64%) Ruby
15 18 (2.06%) MATLAB
15 18 (2.06%) PHP
16 17 (1.95%) Korn
16 17 (1.95%) R
16 17 (1.95%) VB
17 16 (1.83%) Ada
Qualifications
1 199 (22.82%) Security Cleared
2 150 (17.20%) SC Cleared
3 59 (6.77%) Degree
4 57 (6.54%) DV Cleared
5 20 (2.29%) PMI Certification
6 19 (2.18%) Cisco Certification
7 11 (1.26%) Microsoft Certification
8 10 (1.15%) Computer Science Degree
9 7 (0.80%) BPSS Clearance
9 7 (0.80%) CISSP
9 7 (0.80%) PhD
10 6 (0.69%) CESG Certified Professional
10 6 (0.69%) CISM
10 6 (0.69%) Master's Degree
10 6 (0.69%) PMP
11 5 (0.57%) DBS Check
11 5 (0.57%) HNC
11 5 (0.57%) Numerate Degree
12 4 (0.46%) A+ Certification
12 4 (0.46%) CCIE
Quality Assurance & Compliance
1 43 (4.93%) QA
2 20 (2.29%) SLA
3 15 (1.72%) ISO/IEC 27001
4 14 (1.61%) PMBOK
5 13 (1.49%) NIST
6 10 (1.15%) Data Quality
7 8 (0.92%) GDPR
7 8 (0.92%) NCSC
8 7 (0.80%) MISRA
9 5 (0.57%) HMG Security Policy Framework
9 5 (0.57%) JTAG
9 5 (0.57%) WCAG
10 4 (0.46%) ISO 26262
10 4 (0.46%) PMO
11 3 (0.34%) DO-178B
11 3 (0.34%) IEC 62304
11 3 (0.34%) Sarbanes-Oxley
12 2 (0.23%) ISO 8583
12 2 (0.23%) MISRA C
13 1 (0.11%) ECSS
System Software
1 43 (4.93%) VMware Infrastructure
2 33 (3.78%) Active Directory
3 27 (3.10%) Docker
4 25 (2.87%) Firmware
5 17 (1.95%) VMware NSX
6 14 (1.61%) Virtual Machines
7 11 (1.26%) NFS
7 11 (1.26%) VMware ESXi
8 5 (0.57%) vSphere
9 4 (0.46%) Microcode
9 4 (0.46%) VirtualBox
10 3 (0.34%) Ceph
10 3 (0.34%) Oracle RAC
10 3 (0.34%) VMware Workstation
10 3 (0.34%) Xen
10 3 (0.34%) XenApp
11 2 (0.23%) qmail
11 2 (0.23%) Samba
11 2 (0.23%) Veritas Cluster Server
11 2 (0.23%) Veritas Volume Manager
Systems Management
1 38 (4.36%) Kubernetes
2 27 (3.10%) Ansible
3 15 (1.72%) Terraform
4 11 (1.26%) HP ALM
4 11 (1.26%) HP Fortify
4 11 (1.26%) vCenter Server
5 10 (1.15%) Puppet
5 10 (1.15%) Single Sign-On
6 8 (0.92%) Prometheus
7 7 (0.80%) Opscode Chef
8 6 (0.69%) vRealize Orchestrator
9 5 (0.57%) Cisco CUCM
9 5 (0.57%) SELinux
10 4 (0.46%) Hadoop YARN
11 3 (0.34%) MaaS360
11 3 (0.34%) Mesos
11 3 (0.34%) Nessus
11 3 (0.34%) Salt
12 2 (0.23%) HP Quality Center
12 2 (0.23%) SCCM
Vendors
1 80 (9.17%) Microsoft
2 77 (8.83%) Oracle
3 43 (4.93%) VMware
4 34 (3.90%) IBM
5 31 (3.56%) Cisco
5 31 (3.56%) SAP
6 26 (2.98%) Google
7 19 (2.18%) HP
8 18 (2.06%) CA
9 15 (1.72%) Qualys
9 15 (1.72%) ServiceNow
10 14 (1.61%) Citrix
11 12 (1.38%) ArcSight
11 12 (1.38%) Atlassian
11 12 (1.38%) Micro Focus
11 12 (1.38%) Red Hat
11 12 (1.38%) Sonatype
11 12 (1.38%) Splunk
12 11 (1.26%) Apple
12 11 (1.26%) Black Duck