Period
to 17 October 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 17 October 2021 with a comparison to the same period in the previous 2 years.

C
UK
6 months to
17 Oct 2021
Same period 2020 Same period 2019
Rank 132 116 92
Rank change year-on-year -16 -24 +10
Permanent jobs citing C 3,387 1,339 4,560
As % of all permanent jobs advertised in the UK 2.72% 2.80% 3.32%
As % of the Programming Languages category 5.05% 4.72% 6.21%
Number of salaries quoted 1,814 1,121 3,409
10th Percentile £33,750 £35,750 £30,750
25th Percentile £43,750 £42,500 £37,500
Median annual salary (50th Percentile) £57,500 £55,000 £50,000
Median % change year-on-year +4.55% +10.00% -
75th Percentile £72,500 £75,000 £65,000
90th Percentile £88,750 £105,000 £77,500
UK excluding London median annual salary £55,000 £50,000 £47,500
% change year-on-year +10.00% +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 67,133 28,374 73,373
As % of all permanent IT jobs advertised in the UK 53.90% 59.24% 53.45%
Number of salaries quoted 44,690 24,230 60,636
10th Percentile £35,000 £33,750 £31,250
25th Percentile £43,750 £42,500 £38,750
Median annual salary (50th Percentile) £60,000 £55,000 £52,500
Median % change year-on-year +9.09% +4.76% +5.00%
75th Percentile £77,500 £73,750 £70,000
90th Percentile £95,000 £90,000 £86,250
UK excluding London median annual salary £50,000 £50,000 £45,000
% change year-on-year - +11.11% -

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 17 October 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 17 October 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 -2 3,040 £57,500 +1.75% 1,041
UK excluding London -16 2,007 £55,000 +10.00% 881
London -14 1,084 £67,500 -5.26% 220
South East -22 607 £55,000 +4.76% 195
Work from Home 0 571 £60,000 +4.35% 152
South West -15 359 £52,500 +5.00% 119
North of England -10 353 £55,000 +10.00% 229
East of England +25 292 £51,250 -2.38% 133
Midlands +27 268 £50,000 +8.11% 145
North West -9 188 £52,000 +18.86% 115
West Midlands +4 177 £50,000 +11.11% 73
Yorkshire -29 142 £60,000 +9.09% 75
East Midlands -16 91 £50,000 - 70
Scotland -79 77 £47,500 - 32
Wales -27 39 £45,000 +1.40% 20
North East -14 23 £57,500 +38.55% 39
Northern Ireland -44 22 £75,000 +50.00% 10

For the 6 months to 17 October 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 1,378 (40.68%) C++
2 1,191 (35.16%) Agile Software Development
3 1,116 (32.95%) Software Engineering
4 1,092 (32.24%) Social Skills
5 1,016 (30.00%) Python
6 924 (27.28%) Degree
7 793 (23.41%) Linux
8 731 (21.58%) Java
9 663 (19.57%) Computer Science
10 643 (18.98%) Problem-Solving
11 565 (16.68%) Finance
12 536 (15.83%) C#
13 508 (15.00%) JavaScript
14 496 (14.64%) SQL
15 491 (14.50%) DevOps
16 438 (12.93%) AWS
17 407 (12.02%) Analytical Skills
18 392 (11.57%) Mathematics
19 389 (11.49%) Azure
20 370 (10.92%) TDD
21 332 (9.80%) Algorithms
22 329 (9.71%) Continuous Integration
23 327 (9.65%) Scrum
24 326 (9.63%) Test Automation
25 318 (9.39%) Analytics
26 317 (9.36%) Self-Motivation
27 311 (9.18%) Mentoring
28 278 (8.21%) OO
29 272 (8.03%) React
30 271 (8.00%) Microservices

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
1 116 (3.42%) Confluence
2 50 (1.48%) SharePoint
3 48 (1.42%) Apache Spark
4 30 (0.89%) Apache
5 25 (0.74%) IIS
5 25 (0.74%) SAS
6 23 (0.68%) Elasticsearch
7 21 (0.62%) Tomcat
8 16 (0.47%) WebSphere
9 14 (0.41%) WebLogic
10 13 (0.38%) CMS
11 12 (0.35%) JBoss
11 12 (0.35%) Oracle SOA Suite
11 12 (0.35%) Tornado
12 11 (0.32%) MS Exchange
13 8 (0.24%) nginx
13 8 (0.24%) Oracle HTTP Server
14 7 (0.21%) CICS
14 7 (0.21%) OpenROAD
14 7 (0.21%) OpenStack
Applications
1 103 (3.04%) Microsoft Office
2 100 (2.95%) Simulink
3 96 (2.83%) Microsoft Excel
4 42 (1.24%) Microsoft PowerPoint
5 12 (0.35%) Microsoft Project
6 8 (0.24%) Figma
7 6 (0.18%) AutoCAD
7 6 (0.18%) MS Visio
7 6 (0.18%) Photoshop
8 5 (0.15%) InVision
8 5 (0.15%) Sketch
9 4 (0.12%) Chatbot
9 4 (0.12%) SPSS
9 4 (0.12%) Stata
10 3 (0.089%) Adobe Creative Suite
10 3 (0.089%) Adobe Illustrator
10 3 (0.089%) EngageOne
10 3 (0.089%) Stateflow
10 3 (0.089%) Windchill
11 2 (0.059%) OrCAD
Business Applications
1 31 (0.92%) Dynamics NAV
2 22 (0.65%) SAP S/4HANA
3 10 (0.30%) Dynamics CRM
3 10 (0.30%) SAP SD
4 9 (0.27%) NetSuite
5 8 (0.24%) Adobe Campaign
6 7 (0.21%) Maximo
6 7 (0.21%) SAP Oil and Gas
6 7 (0.21%) Sparx Enterprise Architect
7 6 (0.18%) Magento
7 6 (0.18%) SAP CRM
8 5 (0.15%) Oracle ERP
9 4 (0.12%) Dynamics AX
9 4 (0.12%) Oracle EBS
9 4 (0.12%) SAP MDG
9 4 (0.12%) Shopify
10 3 (0.089%) Oracle Applications
10 3 (0.089%) Oracle Procure-to-Pay
10 3 (0.089%) SAP FI
10 3 (0.089%) SAP R/3
Cloud Services
1 438 (12.93%) AWS
2 389 (11.49%) Azure
3 202 (5.96%) GCP
4 159 (4.69%) SaaS
5 104 (3.07%) GitHub
6 94 (2.78%) Serverless
7 68 (2.01%) Cloud Computing
8 66 (1.95%) Microsoft 365
8 66 (1.95%) OpenShift
9 54 (1.59%) PaaS
10 38 (1.12%) IaaS
11 32 (0.94%) Power Platform
12 25 (0.74%) AWS Lambda
13 22 (0.65%) AWS CloudFormation
13 22 (0.65%) Dynamics 365
14 20 (0.59%) Slack
15 19 (0.56%) Amazon S3
16 18 (0.53%) Datadog
17 17 (0.50%) AWS CodePipeline
18 16 (0.47%) AWS CodeCommit
Communications & Networking
1 237 (7.00%) TCP/IP
2 166 (4.90%) Ethernet
3 161 (4.75%) Broadband
4 147 (4.34%) HTTP
5 142 (4.19%) Wireless
6 137 (4.04%) Wi-Fi
7 90 (2.66%) MQTT
8 84 (2.48%) Bluetooth
9 81 (2.39%) Firewall
10 75 (2.21%) Internet
11 69 (2.04%) Modbus
12 65 (1.92%) DVB
13 55 (1.62%) Wireshark
14 53 (1.56%) RS-422
15 42 (1.24%) WAN
16 40 (1.18%) RS-485
17 39 (1.15%) DNS
18 38 (1.12%) HTTPS
19 33 (0.97%) VPN
20 31 (0.92%) 802.11
Database & Business Intelligence
1 237 (7.00%) PostgreSQL
2 124 (3.66%) SQL Server
3 116 (3.42%) NoSQL
4 112 (3.31%) Relational Database
5 105 (3.10%) Big Data
6 100 (2.95%) MySQL
7 79 (2.33%) MongoDB
8 58 (1.71%) Redis
9 50 (1.48%) Tableau
10 33 (0.97%) Data Mining
10 33 (0.97%) Oracle Database
11 32 (0.94%) RDBMS
11 32 (0.94%) SQL Server Integration Services
12 29 (0.86%) Power BI
12 29 (0.86%) SAP HANA
13 27 (0.80%) Data Lake
14 23 (0.68%) Data Warehouse
15 22 (0.65%) Hadoop
16 19 (0.56%) SQLite
17 17 (0.50%) Amazon DynamoDB
Development Applications
1 257 (7.59%) Git (software)
2 240 (7.09%) Jenkins
3 189 (5.58%) JIRA
4 123 (3.63%) GitLab
5 69 (2.04%) Subversion
6 52 (1.54%) Eclipse
6 52 (1.54%) Visual Studio
7 50 (1.48%) Selenium
8 44 (1.30%) Rational Rhapsody
9 42 (1.24%) GCC
10 40 (1.18%) Rational DOORS
11 37 (1.09%) TeamCity
12 36 (1.06%) Cucumber
13 35 (1.03%) GNU Toolchain
13 35 (1.03%) Octopus Deploy
14 32 (0.94%) CircleCI
15 31 (0.92%) Bitbucket
15 31 (0.92%) JMeter
16 30 (0.89%) Rational Team Concert
17 26 (0.77%) Maven
General
1 1,092 (32.24%) Social Skills
2 565 (16.68%) Finance
3 407 (12.02%) Analytical Skills
4 243 (7.17%) Electronics
5 209 (6.17%) Marketing
6 188 (5.55%) Retail
7 138 (4.07%) Games
8 131 (3.87%) Manufacturing
9 120 (3.54%) Banking
10 119 (3.51%) Telecoms
11 108 (3.19%) Inclusion and Diversity
12 98 (2.89%) Legal
13 96 (2.83%) Law
14 85 (2.51%) Public Sector
15 75 (2.21%) Influencing Skills
16 64 (1.89%) Aerospace
17 60 (1.77%) Automotive
18 55 (1.62%) Presentation Skills
19 54 (1.59%) Military
20 50 (1.48%) Organisational Skills
Job Titles
1 774 (22.85%) Software Engineer
2 605 (17.86%) Developer
3 338 (9.98%) Embedded Engineer
4 244 (7.20%) Embedded Software Engineer
5 216 (6.38%) Analyst
6 209 (6.17%) Senior Software Engineer
7 170 (5.02%) Software Developer
8 146 (4.31%) C++ Software Engineer
9 145 (4.28%) Architect
10 118 (3.48%) Embedded C++ Engineer
11 114 (3.37%) Senior Developer
12 113 (3.34%) C Software Engineer
13 107 (3.16%) Consultant
14 106 (3.13%) C/C++ Software Engineer
14 106 (3.13%) Linux Engineer
15 93 (2.75%) Embedded C Engineer
15 93 (2.75%) Embedded C/C++ Engineer
16 91 (2.69%) Embedded C++ Software Engineer
17 87 (2.57%) Embedded Linux Engineer
18 86 (2.54%) C/C++ Embedded Software Engineer
Libraries, Frameworks & Software Standards
1 272 (8.03%) React
2 249 (7.35%) HTML
3 247 (7.29%) .NET
4 185 (5.46%) Node.js
5 168 (4.96%) REST
6 156 (4.61%) CSS
7 117 (3.45%) Middleware
8 108 (3.19%) AngularJS
9 103 (3.04%) Spring
10 102 (3.01%) Kafka
11 87 (2.57%) XML
12 86 (2.54%) Web Services
13 85 (2.51%) HTML5
13 85 (2.51%) JSON
14 83 (2.45%) .NET Core
15 67 (1.98%) Java EE
16 64 (1.89%) RESTful
17 54 (1.59%) ASP.NET
18 51 (1.51%) Velocity
19 47 (1.39%) Spring Boot
Miscellaneous
1 332 (9.80%) Algorithms
2 317 (9.36%) Self-Motivation
3 177 (5.23%) Management Information System
4 165 (4.87%) User Experience
5 151 (4.46%) Data Structures
6 129 (3.81%) Embedded Systems
7 97 (2.86%) Field-Programmable Gate Array
8 81 (2.39%) Mobile App
9 80 (2.36%) Device Driver
10 79 (2.33%) Social Media
11 77 (2.27%) Virtual Team
12 75 (2.21%) Greenfield Project
13 62 (1.83%) Renewable Energy
14 56 (1.65%) Cyberattack
15 54 (1.59%) Data Centre
16 49 (1.45%) VHDL
17 44 (1.30%) STB
18 40 (1.18%) Public Cloud
19 38 (1.12%) Life Science
20 35 (1.03%) Digital TV
Operating Systems
1 793 (23.41%) Linux
2 267 (7.88%) Windows
3 201 (5.93%) Unix
4 136 (4.02%) Android
5 95 (2.80%) Apple iOS
6 78 (2.30%) Embedded Linux
7 64 (1.89%) CentOS
8 48 (1.42%) Red Hat Enterprise Linux
9 21 (0.62%) Mac OS X
10 15 (0.44%) Debian
10 15 (0.44%) Windows Server
11 14 (0.41%) FreeRTOS
11 14 (0.41%) Mac OS
12 13 (0.38%) Windows 10
12 13 (0.38%) Windows Server 2008
13 12 (0.35%) VxWorks
13 12 (0.35%) Windows Server 2016
14 9 (0.27%) AIX
14 9 (0.27%) HPUX
15 8 (0.24%) SUSE
Processes & Methodologies
1 1,191 (35.16%) Agile Software Development
2 1,116 (32.95%) Software Engineering
3 663 (19.57%) Computer Science
4 643 (18.98%) Problem-Solving
5 491 (14.50%) DevOps
6 392 (11.57%) Mathematics
7 370 (10.92%) TDD
8 329 (9.71%) Continuous Integration
9 327 (9.65%) Scrum
10 326 (9.63%) Test Automation
11 318 (9.39%) Analytics
12 311 (9.18%) Mentoring
13 278 (8.21%) OO
14 271 (8.00%) Microservices
15 248 (7.32%) SDLC
16 240 (7.09%) Artificial Intelligence
17 237 (7.00%) Project Management
18 231 (6.82%) Software Testing
19 209 (6.17%) Machine Learning
20 193 (5.70%) Validation
Programming Languages
1 1,378 (40.68%) C++
2 1,016 (30.00%) Python
3 731 (21.58%) Java
4 536 (15.83%) C#
5 508 (15.00%) JavaScript
6 496 (14.64%) SQL
7 190 (5.61%) Go
8 184 (5.43%) Embedded C
9 181 (5.34%) MATLAB
9 181 (5.34%) TypeScript
10 141 (4.16%) Bash Shell
11 117 (3.45%) Perl
12 109 (3.22%) Embedded C++
13 105 (3.10%) Ruby
14 100 (2.95%) PHP
15 88 (2.60%) Shell Script
16 87 (2.57%) R
17 74 (2.18%) Scala
18 57 (1.68%) Assembly Language
19 56 (1.65%) Ada
Qualifications
1 924 (27.28%) Degree
2 268 (7.91%) Security Cleared
3 226 (6.67%) Computer Science Degree
4 197 (5.82%) SC Cleared
5 88 (2.60%) PhD
6 86 (2.54%) Master's Degree
7 84 (2.48%) HND
8 80 (2.36%) DV Cleared
9 54 (1.59%) HNC
10 33 (0.97%) CISSP
11 20 (0.59%) PMI Certification
12 19 (0.56%) Cisco Certification
12 19 (0.56%) CISM
13 16 (0.47%) DBS Check
14 13 (0.38%) BPSS Clearance
14 13 (0.38%) CREST Certified
15 11 (0.32%) CEH
15 11 (0.32%) CESG Certified Professional
16 10 (0.30%) CCNA
17 9 (0.27%) CCNP
Quality Assurance & Compliance
1 169 (4.99%) QA
2 113 (3.34%) MISRA
3 62 (1.83%) Def Stans
4 42 (1.24%) MISRA C
5 37 (1.09%) ECSS
6 34 (1.00%) ISO/IEC 27001
7 32 (0.94%) SLA
8 26 (0.77%) PMO
9 23 (0.68%) Data Quality
9 23 (0.68%) GDPR
9 23 (0.68%) ISO 9001
10 19 (0.56%) Cyber Essentials
11 18 (0.53%) PSD2
12 17 (0.50%) Accessibility
12 17 (0.50%) DO-178B
13 14 (0.41%) ISO 26262
13 14 (0.41%) NIST
13 14 (0.41%) PCI DSS
14 13 (0.38%) Good Clinical Practice
15 12 (0.35%) IEC 61508
System Software
1 268 (7.91%) Docker
1 268 (7.91%) Firmware
2 47 (1.39%) Active Directory
3 46 (1.36%) VMware Infrastructure
4 14 (0.41%) Hyper-V
5 11 (0.32%) VirtualBox
6 8 (0.24%) Virtual Machines
7 7 (0.21%) NFS
7 7 (0.21%) VMware ESXi
8 6 (0.18%) vSphere
9 5 (0.15%) Snort
9 5 (0.15%) Squid
9 5 (0.15%) Terminal Services
10 3 (0.089%) Apache ZooKeeper
10 3 (0.089%) Virtual Desktop
11 2 (0.059%) iptables
11 2 (0.059%) Samba
12 1 (0.030%) Advanced Linux Sound Architecture
12 1 (0.030%) BitLocker
12 1 (0.030%) Xen
Systems Management
1 220 (6.50%) Kubernetes
2 174 (5.14%) Ansible
3 99 (2.92%) Terraform
4 51 (1.51%) Puppet
5 46 (1.36%) Opscode Chef
6 39 (1.15%) Kibana
7 30 (0.89%) BMC PATROL
8 28 (0.83%) Graylog
9 20 (0.59%) SCCM
10 18 (0.53%) Nagios
11 17 (0.50%) Prometheus
11 17 (0.50%) Single Sign-On
12 13 (0.38%) Nessus
13 12 (0.35%) Bugsnag
13 12 (0.35%) Grafana
14 11 (0.32%) Packer
15 10 (0.30%) HP Quality Center
16 9 (0.27%) vCenter Server
17 8 (0.24%) Microsoft Intune
17 8 (0.24%) ZABBIX
Vendors
1 267 (7.88%) Microsoft
2 210 (6.20%) Oracle
3 155 (4.58%) Google
4 100 (2.95%) SAP
5 94 (2.78%) Red Hat
6 93 (2.75%) IBM
7 72 (2.13%) VMware
8 57 (1.68%) Splunk
9 46 (1.36%) Salesforce.com
10 42 (1.24%) Cisco
11 41 (1.21%) EMC
12 37 (1.09%) Spotify
13 35 (1.03%) YouTube
14 32 (0.94%) Samsung
15 28 (0.83%) HP
16 24 (0.71%) Workday
17 22 (0.65%) Adobe
18 20 (0.59%) Siemens
19 16 (0.47%) ServiceNow
19 16 (0.47%) Xilinx