Period
to 25 September 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 25 September 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
25 Sep 2021
Same period 2020 Same period 2019
Rank 177 111 126
Rank change year-on-year -66 +15 +47
Contract jobs citing C 1,237 672 1,809
As % of all contract jobs advertised in the UK 1.55% 2.26% 2.05%
As % of the Programming Languages category 3.89% 5.34% 4.85%
Number of daily rates quoted 758 370 988
10th Percentile £360 £279 £317
25th Percentile £450 £394 £388
Median daily rate (50th Percentile) £540 £500 £450
Median % change year-on-year +8.00% +11.11% -5.26%
75th Percentile £650 £575 £550
90th Percentile £725 £701 £663
UK excluding London median daily rate £475 £450 £450
% change year-on-year +5.56% - +9.09%
Number of hourly rates quoted 109 84 222
10th Percentile £16.21 £11.72 £37.50
25th Percentile £25.00 £21.53 £41.25
Median hourly rate £47.50 £42.50 £46.25
Median % change year-on-year +11.76% -8.11% +9.47%
75th Percentile £53.75 £48.32 £51.25
90th Percentile £63.15 £53.38 £53.75
UK excluding London median hourly rate £47.50 £42.50 £46.00
% change year-on-year +11.76% -7.61% +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 with a requirement for coding skills.

All Programming Languages
UK
Contract vacancies with a requirement for coding skills 31,807 12,585 37,286
As % of all contract IT jobs advertised in the UK 39.79% 42.33% 42.21%
Number of daily rates quoted 22,726 8,808 26,104
10th Percentile £356 £313 £320
25th Percentile £425 £400 £400
Median daily rate (50th Percentile) £523 £488 £475
Median % change year-on-year +7.18% +2.63% -
75th Percentile £623 £588 £575
90th Percentile £700 £688 £650
UK excluding London median daily rate £450 £431 £425
% change year-on-year +4.41% +1.41% +2.41%
Number of hourly rates quoted 461 248 642
10th Percentile £16.49 £12.93 £19.18
25th Percentile £25.25 £20.59 £34.00
Median hourly rate £45.00 £39.00 £44.96
Median % change year-on-year +15.38% -13.25% +8.25%
75th Percentile £57.82 £47.50 £51.00
90th Percentile £66.75 £55.00 £55.00
UK excluding London median hourly rate £45.00 £42.00 £44.00
% change year-on-year +7.14% -4.55% +4.76%

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 25 September 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 25 September 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 25 September 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 -64 1,014 £540 +8.10% 946
UK excluding London -62 535 £475 +5.56% 813
London -39 493 £600 +14.29% 196
Work from Home -73 288 £540 +8.00% 147
South West +24 163 £450 +5.88% 95
South East -62 127 £436 -8.78% 178
East of England -35 90 £475 +10.40% 142
Midlands -49 57 £450 -7.69% 119
West Midlands -39 46 £450 -10.00% 63
Scotland -45 45 £500 +10.62% 40
North of England -104 33 £463 +23.33% 214
Wales -21 18 £509 +7.05% 18
North West -78 15 £480 +1.05% 112
Yorkshire -56 13 £450 +41.18% 77
East Midlands -32 11 £400 +41.59% 55
North East -9 5 £320 -1.54% 25
Northern Ireland -2 4 - - 10

For the 6 months to 25 September 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.

1 411 (33.23%) Agile Software Development
2 359 (29.02%) C++
3 268 (21.67%) Python
4 265 (21.42%) Java
5 260 (21.02%) Software Engineering
6 243 (19.64%) Social Skills
7 237 (19.16%) Security Cleared
8 208 (16.81%) Linux
8 208 (16.81%) Finance
9 197 (15.93%) DevOps
10 194 (15.68%) Azure
11 174 (14.07%) AWS
12 172 (13.90%) SC Cleared
13 152 (12.29%) Stakeholder Management
14 145 (11.72%) SQL
15 141 (11.40%) Degree
16 140 (11.32%) SDLC
17 128 (10.35%) Problem-Solving
18 119 (9.62%) Windows
19 116 (9.38%) Microsoft
20 112 (9.05%) Scrum
21 111 (8.97%) JIRA
22 108 (8.73%) JavaScript
23 104 (8.41%) Git (software)
24 102 (8.25%) Project Delivery
25 101 (8.16%) Telecoms
26 95 (7.68%) C#
27 93 (7.52%) Embedded C
28 92 (7.44%) Jenkins
29 87 (7.03%) Oracle

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 60 (4.85%) Confluence
2 34 (2.75%) SharePoint
3 18 (1.46%) Apache Spark
4 17 (1.37%) OpenStack
5 16 (1.29%) Apache
6 13 (1.05%) ArcGIS
7 11 (0.89%) Oracle SOA Suite
8 10 (0.81%) Tomcat
8 10 (0.81%) WebLogic
9 6 (0.49%) Mule
10 5 (0.40%) CMS
10 5 (0.40%) Elasticsearch
10 5 (0.40%) MS Exchange
11 4 (0.32%) Apache Airflow
11 4 (0.32%) IIS
12 3 (0.24%) SAS
13 2 (0.16%) Exchange Server 2010
13 2 (0.16%) nginx
13 2 (0.16%) Skype for Business
13 2 (0.16%) Tuxedo
Applications
1 40 (3.23%) Microsoft Office
2 28 (2.26%) Microsoft Excel
3 15 (1.21%) Simulink
4 10 (0.81%) Photoshop
5 7 (0.57%) Microsoft PowerPoint
6 6 (0.49%) FrameMaker
6 6 (0.49%) Spreadsheet
7 4 (0.32%) Microsoft Project
7 4 (0.32%) MS Visio
8 3 (0.24%) Doxygen
9 2 (0.16%) SOLIDWORKS
9 2 (0.16%) SPSS
10 1 (0.081%) Adobe XD
10 1 (0.081%) Houdini
10 1 (0.081%) Mathcad
10 1 (0.081%) Maya
10 1 (0.081%) NUKE
10 1 (0.081%) Sketch
10 1 (0.081%) Stateflow
Business Applications
1 25 (2.02%) ION MarketView
2 8 (0.65%) Dynamics NAV
3 6 (0.49%) Dynamics CRM
3 6 (0.49%) Sparx Enterprise Architect
4 5 (0.40%) SAP Oil and Gas
5 4 (0.32%) Oracle ERP
5 4 (0.32%) SAP MDG
5 4 (0.32%) SAP S/4HANA
5 4 (0.32%) Sentinel
6 3 (0.24%) BASE24
6 3 (0.24%) SAP BPC
6 3 (0.24%) SAP Hybris
7 2 (0.16%) NetSuite
7 2 (0.16%) Payment Gateway
7 2 (0.16%) SAP CO
7 2 (0.16%) SAP ERP
7 2 (0.16%) SAP FI
7 2 (0.16%) SAP FI/CO
7 2 (0.16%) Teamcenter
7 2 (0.16%) Workday HCM
Cloud Services
1 194 (15.68%) Azure
2 174 (14.07%) AWS
3 61 (4.93%) GCP
4 39 (3.15%) GitHub
5 36 (2.91%) AWS CloudFormation
6 34 (2.75%) SaaS
7 33 (2.67%) Microsoft 365
8 31 (2.51%) Serverless
9 28 (2.26%) Power Platform
10 26 (2.10%) PaaS
11 22 (1.78%) Azure Active Directory
12 13 (1.05%) Amazon S3
13 12 (0.97%) IaaS
14 11 (0.89%) Cloud Computing
14 11 (0.89%) OpenShift
15 8 (0.65%) AWS Lambda
15 8 (0.65%) OneDrive
16 6 (0.49%) Amazon EKS
16 6 (0.49%) AWS CodeCommit
16 6 (0.49%) Azure Cosmos DB
Communications & Networking
1 69 (5.58%) 5G
2 64 (5.17%) 2G
3 63 (5.09%) GSM
3 63 (5.09%) MVNO
4 49 (3.96%) Packet Switching
5 37 (2.99%) Wireless
6 34 (2.75%) Wi-Fi
7 32 (2.59%) Firewall
8 27 (2.18%) Ethernet
9 25 (2.02%) IPv4
10 22 (1.78%) DNS
10 22 (1.78%) TCP/IP
11 21 (1.70%) Internet
12 20 (1.62%) VPN
13 19 (1.54%) Bluetooth
14 17 (1.37%) DHCP
14 17 (1.37%) LAN
14 17 (1.37%) WAN
15 16 (1.29%) Unified Communications
16 13 (1.05%) IPv6
Database & Business Intelligence
1 54 (4.37%) SQL Server
2 32 (2.59%) NoSQL
3 31 (2.51%) PostgreSQL
4 28 (2.26%) MySQL
4 28 (2.26%) Power BI
4 28 (2.26%) Relational Database
5 25 (2.02%) GIS
5 25 (2.02%) Oracle Database
6 23 (1.86%) Big Data
7 19 (1.54%) Tableau
8 16 (1.29%) RDBMS
9 15 (1.21%) Data Warehouse
10 14 (1.13%) Apache Cassandra
10 14 (1.13%) Hadoop
11 12 (0.97%) MongoDB
12 11 (0.89%) Geospatial Data
13 10 (0.81%) Data Lake
13 10 (0.81%) SQL Server Integration Services
14 9 (0.73%) HBase
14 9 (0.73%) SAP HANA
Development Applications
1 111 (8.97%) JIRA
2 104 (8.41%) Git (software)
3 92 (7.44%) Jenkins
4 42 (3.40%) Rational DOORS
5 30 (2.43%) GitLab
6 29 (2.34%) Rational Rhapsody
7 25 (2.02%) Bitbucket
8 22 (1.78%) Eclipse
9 20 (1.62%) Atlassian Bamboo
9 20 (1.62%) LoadRunner
10 18 (1.46%) Selenium
10 18 (1.46%) Subversion
11 16 (1.29%) Maven
12 15 (1.21%) Cucumber
12 15 (1.21%) JMeter
13 14 (1.13%) Rational Team Concert
14 12 (0.97%) GDB
14 12 (0.97%) SonarQube
14 12 (0.97%) Visual Studio
14 12 (0.97%) Xcode
General
1 243 (19.64%) Social Skills
2 208 (16.81%) Finance
3 101 (8.16%) Telecoms
4 83 (6.71%) Analytical Skills
5 66 (5.34%) Banking
6 50 (4.04%) Public Sector
7 47 (3.80%) Electronics
8 43 (3.48%) Presentation Skills
9 42 (3.40%) Law
10 35 (2.83%) Legal
11 30 (2.43%) Aerospace
12 29 (2.34%) Automotive
13 26 (2.10%) Investment Banking
14 19 (1.54%) Marketing
15 16 (1.29%) Financial Institution
15 16 (1.29%) Military
16 15 (1.21%) Manufacturing
17 14 (1.13%) Digital Economy
18 13 (1.05%) Influencing Skills
18 13 (1.05%) Organisational Skills
Job Titles
1 260 (21.02%) Developer
2 195 (15.76%) Software Engineer
3 131 (10.59%) Analyst
4 109 (8.81%) Embedded Engineer
5 96 (7.76%) Embedded Software Engineer
6 88 (7.11%) Architect
7 76 (6.14%) Business Analyst
8 65 (5.25%) Project Manager
9 59 (4.77%) C Software Engineer
10 52 (4.20%) Java Developer
11 47 (3.80%) C Developer
11 47 (3.80%) C++ Software Engineer
12 45 (3.64%) Consultant
13 43 (3.48%) Embedded C Engineer
14 37 (2.99%) Embedded C Software Engineer
15 36 (2.91%) C/C++ Software Engineer
16 33 (2.67%) DevOps Engineer
17 29 (2.34%) Software Developer
18 28 (2.26%) Technical Project Manager
18 28 (2.26%) Tester
Libraries, Frameworks & Software Standards
1 58 (4.69%) .NET
2 48 (3.88%) XML
3 47 (3.80%) Web Services
4 42 (3.40%) Node.js
5 39 (3.15%) RESTful
6 38 (3.07%) HTML
7 37 (2.99%) AngularJS
7 37 (2.99%) React
8 33 (2.67%) REST
9 31 (2.51%) JNI
10 30 (2.43%) JSON
11 29 (2.34%) Kafka
12 27 (2.18%) Spring
13 25 (2.02%) CSS
14 20 (1.62%) Middleware
15 19 (1.54%) ASP.NET
16 17 (1.37%) .NET Framework
16 17 (1.37%) J2EE
17 14 (1.13%) .NET Core
18 13 (1.05%) Django
Miscellaneous
1 50 (4.04%) Self-Motivation
2 43 (3.48%) Embedded Systems
3 40 (3.23%) User Experience
4 34 (2.75%) PMI
5 31 (2.51%) Data Centre
5 31 (2.51%) Management Information System
6 28 (2.26%) Algorithms
7 17 (1.37%) Client/Server
7 17 (1.37%) Public Cloud
8 16 (1.29%) CAN bus
8 16 (1.29%) Cloud Native
8 16 (1.29%) Data Protection Act
9 15 (1.21%) Verilog
9 15 (1.21%) VHDL
9 15 (1.21%) Virtual Team
10 14 (1.13%) Device Driver
11 13 (1.05%) Enterprise Cloud
11 13 (1.05%) Field-Programmable Gate Array
11 13 (1.05%) Hedge funds
11 13 (1.05%) Linux Command Line
Operating Systems
1 208 (16.81%) Linux
2 119 (9.62%) Windows
3 49 (3.96%) Unix
4 36 (2.91%) Windows 10
5 30 (2.43%) Android
6 28 (2.26%) Red Hat Enterprise Linux
7 24 (1.94%) Embedded Linux
8 23 (1.86%) Apple iOS
8 23 (1.86%) Windows Server
9 16 (1.29%) Windows Server 2008
9 16 (1.29%) Windows Server 2012
10 15 (1.21%) Windows Server 2016
11 13 (1.05%) Windows 7
12 10 (0.81%) FreeRTOS
12 10 (0.81%) Windows Server 2019
13 9 (0.73%) OpenWrt
14 8 (0.65%) Mac OS
14 8 (0.65%) Solaris
14 8 (0.65%) Ubuntu
15 7 (0.57%) CentOS
Processes & Methodologies
1 411 (33.23%) Agile Software Development
2 260 (21.02%) Software Engineering
3 197 (15.93%) DevOps
4 152 (12.29%) Stakeholder Management
5 140 (11.32%) SDLC
6 128 (10.35%) Problem-Solving
7 112 (9.05%) Scrum
8 102 (8.25%) Project Delivery
9 84 (6.79%) Requirements Gathering
10 83 (6.71%) Analytics
11 82 (6.63%) Test Automation
12 78 (6.31%) Configuration Management
13 72 (5.82%) Project Management
13 72 (5.82%) Validation
14 71 (5.74%) Migration
15 69 (5.58%) Continuous Integration
16 68 (5.50%) Computer Science
17 66 (5.34%) OO
18 60 (4.85%) Embedded Software Development
19 59 (4.77%) Microservices
Programming Languages
1 359 (29.02%) C++
2 268 (21.67%) Python
3 265 (21.42%) Java
4 145 (11.72%) SQL
5 108 (8.73%) JavaScript
6 95 (7.68%) C#
7 93 (7.52%) Embedded C
8 75 (6.06%) PowerShell
9 51 (4.12%) Bash Shell
10 48 (3.88%) Perl
11 43 (3.48%) Embedded C++
12 38 (3.07%) Shell Script
13 26 (2.10%) TypeScript
14 25 (2.02%) Go
15 24 (1.94%) MATLAB
15 24 (1.94%) Scala
16 22 (1.78%) PHP
17 21 (1.70%) VB
18 18 (1.46%) Ruby
19 17 (1.37%) Ada
Qualifications
1 237 (19.16%) Security Cleared
2 172 (13.90%) SC Cleared
3 141 (11.40%) Degree
4 74 (5.98%) DV Cleared
5 35 (2.83%) PMI Certification
6 26 (2.10%) Cisco Certification
7 21 (1.70%) Microsoft Certification
8 20 (1.62%) CISSP
9 13 (1.05%) BPSS Clearance
10 9 (0.73%) CCNA
10 9 (0.73%) PMP
11 7 (0.57%) CCNP
11 7 (0.57%) Computer Science Degree
11 7 (0.57%) PhD
12 6 (0.49%) ITIL Certification
12 6 (0.49%) Master's Degree
12 6 (0.49%) TOGAF Certification
13 4 (0.32%) CESG Certified Professional
13 4 (0.32%) PRINCE2 Practitioner
14 3 (0.24%) CISM
Quality Assurance & Compliance
1 46 (3.72%) GDPR
2 34 (2.75%) QA
3 26 (2.10%) PMBOK
4 24 (1.94%) DO-178B
5 14 (1.13%) JTAG
6 13 (1.05%) PMO
7 12 (0.97%) SLA
8 10 (0.81%) Data Quality
9 8 (0.65%) MISRA
10 5 (0.40%) IEC 61508
10 5 (0.40%) ISO/IEC 27001
11 4 (0.32%) ISO 26262
11 4 (0.32%) NIST
12 3 (0.24%) GRC
12 3 (0.24%) HMG Security Policy Framework
12 3 (0.24%) MISRA C
13 2 (0.16%) Accessibility
13 2 (0.16%) FISMA
13 2 (0.16%) HIPAA
13 2 (0.16%) NCSC
System Software
1 84 (6.79%) Docker
2 77 (6.22%) Active Directory
3 46 (3.72%) VMware Infrastructure
4 32 (2.59%) Firmware
5 16 (1.29%) Virtual Desktop
5 16 (1.29%) VMware NSX
6 15 (1.21%) Microsoft App-V
6 15 (1.21%) Virtual Machines
7 11 (0.89%) vSphere
8 8 (0.65%) HDFS
8 8 (0.65%) iptables
9 6 (0.49%) KVM
9 6 (0.49%) Virtual Servers
9 6 (0.49%) VirtualBox
10 4 (0.32%) RACF
10 4 (0.32%) Xen
11 2 (0.16%) NFS
11 2 (0.16%) Terminal Server
12 1 (0.081%) Hyper-V
12 1 (0.081%) VMware Workstation
Systems Management
1 64 (5.17%) Kubernetes
2 63 (5.09%) Terraform
3 47 (3.80%) Ansible
4 26 (2.10%) SCCM
5 20 (1.62%) Microsoft Intune
6 14 (1.13%) Cisco CUCM
7 13 (1.05%) Puppet
8 11 (0.89%) Active Directory Federation Services
8 11 (0.89%) HP Quality Center
9 10 (0.81%) Single Sign-On
10 9 (0.73%) BMC PATROL
11 7 (0.57%) Opscode Chef
11 7 (0.57%) vRealize
12 6 (0.49%) Control-M
12 6 (0.49%) Microsoft Clustering
12 6 (0.49%) Packer
12 6 (0.49%) vRealize Orchestrator
13 5 (0.40%) Nagios
13 5 (0.40%) ZABBIX
14 4 (0.32%) Hadoop YARN
Vendors
1 116 (9.38%) Microsoft
2 87 (7.03%) Oracle
3 48 (3.88%) VMware
4 40 (3.23%) Cisco
5 32 (2.59%) SAP
6 28 (2.26%) Red Hat
7 26 (2.10%) Atlassian
8 25 (2.02%) EMC
8 25 (2.02%) ION Trading
9 23 (1.86%) HP
10 18 (1.46%) IBM
11 17 (1.37%) Google
12 15 (1.21%) Ivanti
13 11 (0.89%) Adobe
13 11 (0.89%) ESRI
13 11 (0.89%) Lumension
13 11 (0.89%) SOASTA, Inc
13 11 (0.89%) Sophos
14 10 (0.81%) Citrix
15 9 (0.73%) Intel