Period
to 24 July 2021

The following table provides summary statistics for permanent job vacancies with a requirement for C skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited C over the 6 months to 24 July 2021 with a comparison to the same period in the previous 2 years.

C
UK
6 months to
24 Jul 2021
Same period 2020 Same period 2019
Rank 123 109 89
Rank change year-on-year -14 -20 +7
Permanent jobs citing C 3,163 2,053 4,909
As % of all permanent jobs advertised in the UK 2.80% 2.90% 3.39%
As % of the Programming Languages category 5.07% 5.17% 6.31%
Number of salaries quoted 1,799 1,630 3,422
10th Percentile £33,200 £33,750 £30,000
25th Percentile £42,500 £41,250 £37,500
Median annual salary (50th Percentile) £55,000 £52,500 £50,000
Median % change year-on-year +4.76% +5.00% -
75th Percentile £72,500 £67,500 £62,500
90th Percentile £85,150 £87,500 £77,500
UK excluding London median annual salary £52,500 £50,000 £47,500
% change year-on-year +5.00% +5.26% -

C is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for coding skills.

All Programming Languages
UK
Permanent vacancies with a requirement for coding skills 62,419 39,695 77,793
As % of all permanent IT jobs advertised in the UK 55.17% 56.08% 53.79%
Number of salaries quoted 43,166 32,972 64,373
10th Percentile £34,750 £32,500 £31,250
25th Percentile £42,500 £41,250 £37,500
Median annual salary (50th Percentile) £57,500 £55,000 £52,500
Median % change year-on-year +4.55% +4.76% +5.00%
75th Percentile £76,250 £73,750 £70,000
90th Percentile £93,750 £90,000 £85,000
UK excluding London median annual salary £50,000 £47,500 £45,000
% change year-on-year +5.26% +5.56% -

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
Salary Trend

3-month moving average salary quoted in jobs citing C.

Salary trend for C in the UK

C
Salary Histogram

Salary distribution for jobs citing C over the 6 months to 24 July 2021.

Salary histogram for C in the UK

C
Top 17 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing C within the UK over the 6 months to 24 July 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -8 2,830 £55,000 +2.80% 988
UK excluding London -23 1,912 £52,500 +5.00% 828
London +33 1,014 £62,500 -3.85% 212
Work from Home -8 569 £60,000 +6.67% 146
South East -42 484 £55,000 +4.76% 192
South West -20 393 £52,500 +10.53% 116
North of England -10 367 £55,000 +4.76% 197
Midlands +16 278 £47,500 - 132
East of England +15 240 £50,000 -9.09% 136
North West -21 191 £50,000 - 106
West Midlands -6 174 £45,000 -5.26% 87
Yorkshire +6 152 £65,000 +18.18% 57
East Midlands +26 104 £50,000 +5.26% 44
Scotland -40 85 £47,500 -10.38% 33
Northern Ireland -7 41 £45,000 -10.00% 5
Wales -9 31 £42,500 -10.53% 17
North East -1 24 £36,000 -16.76% 34

For the 6 months to 24 July 2021, IT 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 permanent job ads with a requirement for C.

1 1,336 (42.24%) C++
2 1,049 (33.16%) Software Engineering
3 990 (31.30%) Social Skills
4 939 (29.69%) Agile Software Development
5 937 (29.62%) Python
6 792 (25.04%) Linux
7 740 (23.40%) Degree
8 668 (21.12%) Java
9 557 (17.61%) Computer Science
10 552 (17.45%) Problem-Solving
11 489 (15.46%) Finance
12 456 (14.42%) SQL
13 420 (13.28%) C#
14 392 (12.39%) Mathematics
15 367 (11.60%) JavaScript
16 350 (11.07%) DevOps
17 347 (10.97%) Security Cleared
18 339 (10.72%) AWS
19 328 (10.37%) Analytical Skills
20 301 (9.52%) Continuous Integration
21 300 (9.48%) Windows
22 294 (9.29%) Analytics
23 288 (9.11%) Test Automation
24 281 (8.88%) Scrum
25 278 (8.79%) Docker
26 273 (8.63%) Algorithms
27 269 (8.50%) Microsoft
28 268 (8.47%) Self-Motivation
29 262 (8.28%) Electronics
30 261 (8.25%) TDD

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 91 (2.88%) Confluence
2 46 (1.45%) Apache Spark
3 44 (1.39%) SAS
4 39 (1.23%) SharePoint
5 30 (0.95%) Tomcat
6 25 (0.79%) Apache
6 25 (0.79%) IIS
7 24 (0.76%) MS Exchange
8 23 (0.73%) Elasticsearch
9 16 (0.51%) Tornado
10 13 (0.41%) nginx
10 13 (0.41%) Oracle SOA Suite
10 13 (0.41%) WebSphere
11 12 (0.38%) ejabberd
12 9 (0.28%) JBoss
13 8 (0.25%) CMS
13 8 (0.25%) OpenROAD
13 8 (0.25%) WebLogic
14 7 (0.22%) OpenStack
15 5 (0.16%) Jupyter
Applications
1 75 (2.37%) Microsoft Office
2 72 (2.28%) Simulink
3 40 (1.26%) Microsoft Excel
4 18 (0.57%) Microsoft PowerPoint
5 12 (0.38%) AutoCAD
6 9 (0.28%) Microsoft Project
7 6 (0.19%) Gephi
8 5 (0.16%) Figma
8 5 (0.16%) InVision
8 5 (0.16%) Sketch
9 4 (0.13%) Chatbot
9 4 (0.13%) Photoshop
9 4 (0.13%) SPSS
10 3 (0.095%) Adobe Creative Suite
10 3 (0.095%) Adobe Illustrator
10 3 (0.095%) EngageOne
11 2 (0.063%) MS Visio
11 2 (0.063%) OrCAD
11 2 (0.063%) Zeplin
12 1 (0.032%) MODO
Business Applications
1 29 (0.92%) Dynamics NAV
2 8 (0.25%) NetSuite
2 8 (0.25%) Sparx Enterprise Architect
3 7 (0.22%) Dynamics CRM
3 7 (0.22%) SAP Oil and Gas
4 6 (0.19%) Dynamics AX
4 6 (0.19%) SAP S/4HANA
5 5 (0.16%) Summit
6 4 (0.13%) Maximo
6 4 (0.13%) Oracle Applications
6 4 (0.13%) Oracle EBS
6 4 (0.13%) Oracle ERP
7 3 (0.095%) Dynamics GP
7 3 (0.095%) Oracle Procure-to-Pay
7 3 (0.095%) SAP FI
7 3 (0.095%) SAP GRC
7 3 (0.095%) SAP R/3
7 3 (0.095%) Sentinel
8 2 (0.063%) Infor M3
8 2 (0.063%) Magento
Cloud Services
1 339 (10.72%) AWS
2 254 (8.03%) Azure
3 176 (5.56%) GCP
4 120 (3.79%) SaaS
5 95 (3.00%) GitHub
6 74 (2.34%) Microsoft 365
7 62 (1.96%) Power Platform
8 43 (1.36%) PaaS
9 37 (1.17%) Serverless
10 31 (0.98%) Cloud Computing
11 26 (0.82%) IaaS
12 24 (0.76%) PowerApps
13 22 (0.70%) OpenShift
14 19 (0.60%) Amazon EKS
14 19 (0.60%) AWS CloudFormation
14 19 (0.60%) Azure Machine Learning
15 18 (0.57%) Dynamics 365
16 16 (0.51%) AWS Lambda
17 14 (0.44%) Amazon S3
18 13 (0.41%) Heroku
Communications & Networking
1 197 (6.23%) TCP/IP
2 158 (5.00%) Ethernet
3 148 (4.68%) Wireless
4 140 (4.43%) Wi-Fi
5 131 (4.14%) Broadband
6 125 (3.95%) HTTP
7 105 (3.32%) Firewall
8 84 (2.66%) MQTT
9 83 (2.62%) Internet
9 83 (2.62%) Wireshark
10 62 (1.96%) Bluetooth
11 61 (1.93%) Modbus
12 50 (1.58%) DVB
12 50 (1.58%) VPN
13 48 (1.52%) RS-422
14 41 (1.30%) 802.11
14 41 (1.30%) HTTPS
14 41 (1.30%) RS-485
15 37 (1.17%) LAN
16 36 (1.14%) VoIP
Database & Business Intelligence
1 188 (5.94%) PostgreSQL
2 139 (4.39%) Big Data
3 122 (3.86%) NoSQL
4 96 (3.04%) Relational Database
5 85 (2.69%) SQL Server
6 68 (2.15%) MySQL
7 65 (2.06%) MongoDB
8 64 (2.02%) Redis
9 37 (1.17%) Power BI
10 35 (1.11%) Data Mining
11 32 (1.01%) SQL Server Integration Services
11 32 (1.01%) Tableau
12 29 (0.92%) Data Warehouse
13 24 (0.76%) RDBMS
14 23 (0.73%) Hadoop
15 18 (0.57%) Oracle Database
15 18 (0.57%) SQL Server Reporting Services
16 16 (0.51%) Amazon Redshift
16 16 (0.51%) Blockchain
16 16 (0.51%) SAP HANA
Development Applications
1 234 (7.40%) Git (software)
2 184 (5.82%) JIRA
3 148 (4.68%) Jenkins
4 121 (3.83%) GitLab
5 56 (1.77%) Eclipse
5 56 (1.77%) GCC
6 54 (1.71%) Subversion
7 46 (1.45%) Visual Studio
8 42 (1.33%) Rational DOORS
9 41 (1.30%) Cucumber
10 38 (1.20%) TeamCity
11 37 (1.17%) Selenium
12 36 (1.14%) Octopus Deploy
13 30 (0.95%) Rational Rhapsody
14 28 (0.89%) Maven
15 27 (0.85%) Rational Team Concert
16 23 (0.73%) Bitbucket
17 21 (0.66%) JMeter
18 19 (0.60%) GDB
19 17 (0.54%) LoadRunner
General
1 990 (31.30%) Social Skills
2 489 (15.46%) Finance
3 328 (10.37%) Analytical Skills
4 262 (8.28%) Electronics
5 162 (5.12%) Marketing
6 153 (4.84%) Games
7 138 (4.36%) Manufacturing
7 138 (4.36%) Retail
8 137 (4.33%) Telecoms
9 136 (4.30%) Legal
10 122 (3.86%) Public Sector
11 115 (3.64%) Banking
12 103 (3.26%) Law
13 78 (2.47%) Organisational Skills
14 70 (2.21%) Inclusion and Diversity
15 63 (1.99%) Aerospace
16 62 (1.96%) Automotive
17 44 (1.39%) Presentation Skills
18 37 (1.17%) Military
18 37 (1.17%) Pharmaceutical
Job Titles
1 709 (22.42%) Software Engineer
2 510 (16.12%) Developer
3 323 (10.21%) Embedded Engineer
4 228 (7.21%) Embedded Software Engineer
5 175 (5.53%) Architect
6 164 (5.18%) Software Developer
7 137 (4.33%) Analyst
7 137 (4.33%) Senior Software Engineer
8 129 (4.08%) Consultant
9 123 (3.89%) C++ Software Engineer
10 95 (3.00%) Linux Engineer
11 93 (2.94%) C Software Engineer
12 85 (2.69%) Senior Developer
13 84 (2.66%) Embedded C++ Engineer
14 83 (2.62%) C/C++ Software Engineer
15 71 (2.24%) Systems Engineer
16 70 (2.21%) Firmware Engineer
17 69 (2.18%) Junior
18 67 (2.12%) Embedded Linux Engineer
19 65 (2.06%) Wireless Engineer
Libraries, Frameworks & Software Standards
1 211 (6.67%) .NET
2 194 (6.13%) HTML
3 191 (6.04%) React
4 142 (4.49%) CSS
4 142 (4.49%) Node.js
5 128 (4.05%) REST
6 112 (3.54%) Kafka
7 88 (2.78%) RESTful
8 86 (2.72%) AngularJS
9 79 (2.50%) Middleware
9 79 (2.50%) Web Services
10 74 (2.34%) .NET Core
11 65 (2.06%) Spring
12 61 (1.93%) HTML5
13 56 (1.77%) XML
14 55 (1.74%) 802.1X
15 54 (1.71%) JSON
16 49 (1.55%) ASP.NET
17 47 (1.49%) XMPP
18 45 (1.42%) RabbitMQ
Miscellaneous
1 273 (8.63%) Algorithms
2 268 (8.47%) Self-Motivation
3 125 (3.95%) Embedded Systems
4 122 (3.86%) Management Information System
5 117 (3.70%) User Experience
6 99 (3.13%) Data Structures
7 96 (3.04%) Field-Programmable Gate Array
8 69 (2.18%) Data Centre
9 66 (2.09%) Device Driver
10 63 (1.99%) Cyberattack
11 56 (1.77%) Greenfield Project
12 51 (1.61%) Renewable Energy
13 49 (1.55%) Mobile App
14 48 (1.52%) Public Cloud
14 48 (1.52%) Robotics
14 48 (1.52%) Virtual Team
15 47 (1.49%) Driving Licence
16 46 (1.45%) Social Media
17 38 (1.20%) VHDL
18 36 (1.14%) Video\Live Streaming
Operating Systems
1 792 (25.04%) Linux
2 300 (9.48%) Windows
3 176 (5.56%) Unix
4 161 (5.09%) Android
5 116 (3.67%) Embedded Linux
6 105 (3.32%) Apple iOS
7 55 (1.74%) CentOS
8 54 (1.71%) Red Hat Enterprise Linux
9 28 (0.89%) Debian
9 28 (0.89%) Windows Server
10 25 (0.79%) Mac OS X
11 20 (0.63%) Windows 10
12 13 (0.41%) Windows Server 2008
13 11 (0.35%) Robot Operating System
13 11 (0.35%) Windows Server 2012
14 10 (0.32%) Windows Server 2016
15 9 (0.28%) AIX
15 9 (0.28%) Mac OS
16 8 (0.25%) HPUX
16 8 (0.25%) Ubuntu
Processes & Methodologies
1 1,049 (33.16%) Software Engineering
2 939 (29.69%) Agile Software Development
3 557 (17.61%) Computer Science
4 552 (17.45%) Problem-Solving
5 392 (12.39%) Mathematics
6 350 (11.07%) DevOps
7 301 (9.52%) Continuous Integration
8 294 (9.29%) Analytics
9 288 (9.11%) Test Automation
10 281 (8.88%) Scrum
11 261 (8.25%) TDD
12 248 (7.84%) Software Testing
13 244 (7.71%) Artificial Intelligence
13 244 (7.71%) Mentoring
14 217 (6.86%) Microservices
15 213 (6.73%) SDLC
16 206 (6.51%) Open Source
17 191 (6.04%) Line Management
18 188 (5.94%) Machine Learning
19 187 (5.91%) OO
Programming Languages
1 1,336 (42.24%) C++
2 937 (29.62%) Python
3 668 (21.12%) Java
4 456 (14.42%) SQL
5 420 (13.28%) C#
6 367 (11.60%) JavaScript
7 178 (5.63%) Embedded C
8 146 (4.62%) Go
9 145 (4.58%) Bash Shell
10 143 (4.52%) MATLAB
11 128 (4.05%) TypeScript
12 112 (3.54%) Embedded C++
13 98 (3.10%) Perl
14 97 (3.07%) R
15 86 (2.72%) Ruby
16 73 (2.31%) PHP
17 64 (2.02%) PowerShell
18 56 (1.77%) Scala
19 42 (1.33%) Shell Script
20 38 (1.20%) Objective-C
Qualifications
1 740 (23.40%) Degree
2 347 (10.97%) Security Cleared
3 230 (7.27%) SC Cleared
4 184 (5.82%) Computer Science Degree
5 163 (5.15%) DV Cleared
6 106 (3.35%) PhD
7 55 (1.74%) Master's Degree
8 42 (1.33%) HNC
9 40 (1.26%) CISSP
10 37 (1.17%) Cisco Certification
11 25 (0.79%) HND
12 22 (0.70%) CISM
13 18 (0.57%) CCNA
14 16 (0.51%) CEH
15 15 (0.47%) CompTIA Security+
16 14 (0.44%) Microsoft Certification
17 13 (0.41%) SANS
18 12 (0.38%) CCNP
18 12 (0.38%) Numerate Degree
18 12 (0.38%) PMI Certification
Quality Assurance & Compliance
1 256 (8.09%) QA
2 104 (3.29%) MISRA
3 44 (1.39%) MISRA C
4 40 (1.26%) Def Stans
5 37 (1.17%) ECSS
5 37 (1.17%) GDPR
5 37 (1.17%) SLA
6 28 (0.89%) ISO/IEC 27001
7 21 (0.66%) PMO
8 20 (0.63%) PSD2
9 16 (0.51%) Data Quality
10 15 (0.47%) Accessibility
10 15 (0.47%) PCI DSS
11 13 (0.41%) ISO 9001
12 12 (0.38%) Cyber Essentials
13 11 (0.35%) GRC
13 11 (0.35%) NIST
14 10 (0.32%) IEC 61508
14 10 (0.32%) JTAG
15 9 (0.28%) IEC 62304
System Software
1 278 (8.79%) Docker
2 244 (7.71%) Firmware
3 61 (1.93%) VMware Infrastructure
4 50 (1.58%) Active Directory
5 17 (0.54%) VirtualBox
6 16 (0.51%) Kamailio
7 14 (0.44%) Hyper-V
8 13 (0.41%) iptables
8 13 (0.41%) KVM
9 12 (0.38%) Postfix
9 12 (0.38%) QEMU
10 10 (0.32%) VMware ESXi
11 9 (0.28%) vSphere
12 8 (0.25%) Snort
12 8 (0.25%) Squid
13 6 (0.19%) Apache Flume
14 5 (0.16%) Terminal Services
15 4 (0.13%) OpenSIPS
15 4 (0.13%) Virtual Machines
16 3 (0.095%) NFS
Systems Management
1 194 (6.13%) Kubernetes
2 154 (4.87%) Ansible
3 71 (2.24%) Terraform
4 53 (1.68%) Puppet
5 49 (1.55%) Kibana
6 35 (1.11%) Graylog
7 28 (0.89%) Opscode Chef
8 20 (0.63%) Prometheus
9 18 (0.57%) SCCM
10 16 (0.51%) ZABBIX
11 15 (0.47%) vCenter Server
12 14 (0.44%) Nagios
13 12 (0.38%) Bugsnag
13 12 (0.38%) Galera Cluster
13 12 (0.38%) HAProxy
14 11 (0.35%) Nessus
15 10 (0.32%) Grafana
15 10 (0.32%) HP Quality Center
15 10 (0.32%) Single Sign-On
16 8 (0.25%) Suricata
Vendors
1 269 (8.50%) Microsoft
2 151 (4.77%) Google
3 142 (4.49%) Oracle
4 86 (2.72%) Instagram
5 78 (2.47%) VMware
6 72 (2.28%) SAP
7 59 (1.87%) Splunk
8 58 (1.83%) Cisco
9 54 (1.71%) IBM
10 47 (1.49%) Red Hat
11 40 (1.26%) Samsung
12 36 (1.14%) HP
13 31 (0.98%) EMC
13 31 (0.98%) Salesforce.com
14 30 (0.95%) Atlassian
15 25 (0.79%) Databricks
16 24 (0.76%) Juniper
17 22 (0.70%) Palo Alto
18 21 (0.66%) Yahoo!
19 18 (0.57%) Spotify