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

C
UK
6 months to
2 Mar 2021
Same period 2020 Same period 2019
Rank 115 94 92
Rank change year-on-year -21 -2 +10
Permanent jobs citing C 2,093 3,897 5,047
As % of all permanent jobs advertised in the UK 2.78% 3.21% 3.36%
As % of the Programming Languages category 4.90% 5.94% 6.11%
Number of salaries quoted 1,758 3,282 3,990
Median annual salary £57,500 £52,500 £50,000
Median salary % change year-on-year +9.52% +5.00% -
10th Percentile £36,218 £31,250 £29,125
90th Percentile £87,500 £82,500 £84,000
UK excluding London median annual salary £50,250 £50,000 £47,500
% change year-on-year +0.50% +5.26% +5.56%

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 42,701 65,563 82,627
As % of all permanent IT jobs advertised in the UK 56.65% 54.06% 54.95%
Number of salaries quoted 35,418 54,531 69,117
Median annual salary £55,000 £52,500 £52,500
Median salary % change year-on-year +4.76% - +5.00%
10th Percentile £33,750 £32,000 £31,250
90th Percentile £90,000 £88,750 £85,000
UK excluding London median annual salary £50,000 £45,000 £45,000
% change year-on-year +11.11% - +5.88%

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 2 March 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 2 March 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 -24 1,849 £57,500 +9.52% 830
UK excluding London -24 1,355 £50,250 +0.50% 714
London +15 625 £67,500 +12.50% 185
South East -39 354 £55,000 +4.76% 180
Work from Home -37 325 £62,500 +4.17% 151
South West -25 316 £52,500 +14.13% 93
North of England +17 208 £55,000 +4.76% 147
Midlands +37 200 £50,000 +5.26% 114
Scotland +37 124 £47,500 - 45
East of England -15 122 £50,000 +5.26% 112
East Midlands +85 106 £50,000 +11.11% 52
Yorkshire +44 102 £55,000 - 68
West Midlands -18 94 £50,000 - 62
North West -11 90 £50,000 -4.76% 56
Northern Ireland +25 19 £42,500 +6.25% 7
North East +25 16 £45,000 - 23
Wales -1 14 £45,000 +12.50% 17

For the 6 months to 2 March 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.

1 897 (42.86%) C++
2 636 (30.39%) Software Engineering
3 573 (27.38%) Python
4 533 (25.47%) Agile Software Development
5 500 (23.89%) Linux
6 465 (22.22%) Java
7 392 (18.73%) Degree
8 319 (15.24%) SQL
9 317 (15.15%) C#
10 287 (13.71%) Security Cleared
11 285 (13.62%) Problem-Solving
12 277 (13.23%) Finance
13 243 (11.61%) Mathematics
14 230 (10.99%) Scrum
15 227 (10.85%) Test Automation
16 224 (10.70%) Computer Science
17 209 (9.99%) SC Cleared
18 206 (9.84%) Electronics
19 204 (9.75%) JavaScript
20 203 (9.70%) Microsoft
21 196 (9.36%) Analytics
22 195 (9.32%) Windows
23 185 (8.84%) AWS
23 185 (8.84%) DevOps
24 170 (8.12%) Cybersecurity
24 170 (8.12%) QA
25 166 (7.93%) Analytical Skills
26 165 (7.88%) Azure
27 157 (7.50%) Embedded C
28 156 (7.45%) Project Management

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 55 (2.63%) Confluence
2 44 (2.10%) SAS
3 30 (1.43%) Apache Spark
4 26 (1.24%) Elasticsearch
5 21 (1.00%) MS Exchange
6 20 (0.96%) Tomcat
7 17 (0.81%) Apache
8 10 (0.48%) ArcGIS
8 10 (0.48%) IIS
8 10 (0.48%) nginx
8 10 (0.48%) OpenStack
9 9 (0.43%) Jupyter
9 9 (0.43%) SharePoint
10 8 (0.38%) Apache Pig
11 7 (0.33%) ejabberd
12 5 (0.24%) JBoss
12 5 (0.24%) Oracle SOA Suite
12 5 (0.24%) Skype for Business
12 5 (0.24%) WordPress
13 4 (0.19%) OpenROAD
Applications
1 65 (3.11%) Microsoft Office
2 36 (1.72%) Simulink
3 27 (1.29%) Microsoft Excel
4 16 (0.76%) SPSS
5 15 (0.72%) AutoCAD
5 15 (0.72%) Microsoft PowerPoint
6 6 (0.29%) Gephi
7 5 (0.24%) Microsoft Project
8 4 (0.19%) Fusion 360
9 3 (0.14%) Adobe XD
9 3 (0.14%) Sketch
10 2 (0.096%) Adobe Creative Suite
10 2 (0.096%) Adobe Illustrator
10 2 (0.096%) InVision
10 2 (0.096%) Marvel
10 2 (0.096%) Photoshop
10 2 (0.096%) Spreadsheet
11 1 (0.048%) MODO
11 1 (0.048%) MS Visio
11 1 (0.048%) Quicktime
Business Applications
1 20 (0.96%) Dynamics NAV
2 14 (0.67%) Summit
3 13 (0.62%) Sparx Enterprise Architect
4 7 (0.33%) Dynamics CRM
5 4 (0.19%) Oracle EBS
5 4 (0.19%) Oracle EBS R12
5 4 (0.19%) Oracle Financials
6 2 (0.096%) Cerner Millennium
6 2 (0.096%) Dynamics GP
6 2 (0.096%) Oracle BPM
6 2 (0.096%) Salesforce.com CRM
6 2 (0.096%) SAP Hybris
7 1 (0.048%) Dynamics AX
7 1 (0.048%) HFM
7 1 (0.048%) Hyperion Planning
7 1 (0.048%) NetSuite
7 1 (0.048%) SAP ERP
7 1 (0.048%) SAP GRC
7 1 (0.048%) SAP Oil and Gas
7 1 (0.048%) Unit4 Business World
Cloud Services
1 185 (8.84%) AWS
2 165 (7.88%) Azure
3 63 (3.01%) GCP
4 60 (2.87%) Microsoft 365
5 55 (2.63%) SaaS
6 40 (1.91%) Power Platform
7 31 (1.48%) GitHub
8 28 (1.34%) AWS CloudFormation
9 21 (1.00%) Serverless
10 19 (0.91%) Cloud Computing
10 19 (0.91%) PaaS
11 18 (0.86%) Trello
12 17 (0.81%) AWS Lambda
12 17 (0.81%) Dynamics 365
13 14 (0.67%) Amazon EC2
14 12 (0.57%) Amazon CloudWatch
15 8 (0.38%) Virtual Private Cloud
16 7 (0.33%) Amazon ECS
16 7 (0.33%) Azure Active Directory
16 7 (0.33%) Mimecast
Communications & Networking
1 103 (4.92%) Wireless
2 83 (3.97%) TCP/IP
3 81 (3.87%) Ethernet
4 80 (3.82%) Wi-Fi
5 70 (3.34%) Internet
6 56 (2.68%) Firewall
7 47 (2.25%) Bluetooth
7 47 (2.25%) Wireshark
8 42 (2.01%) Broadband
9 35 (1.67%) HTTP
10 32 (1.53%) Software-Defined Radio
11 31 (1.48%) MQTT
12 28 (1.34%) DNS
13 26 (1.24%) 802.11
13 26 (1.24%) HTTPS
14 24 (1.15%) STUN
15 22 (1.05%) 5G
15 22 (1.05%) VPN
16 21 (1.00%) VoIP
17 20 (0.96%) RS-485
Database & Business Intelligence
1 108 (5.16%) Big Data
2 67 (3.20%) SQL Server
3 51 (2.44%) PostgreSQL
4 43 (2.05%) Tableau
5 40 (1.91%) NoSQL
6 38 (1.82%) Power BI
7 36 (1.72%) MySQL
8 32 (1.53%) Redis
9 30 (1.43%) Data Warehouse
10 22 (1.05%) GIS
10 22 (1.05%) QlikView
11 20 (0.96%) MongoDB
11 20 (0.96%) Relational Database
12 19 (0.91%) Hadoop
13 16 (0.76%) Blockchain
13 16 (0.76%) Looker
13 16 (0.76%) Snowflake Schema
14 14 (0.67%) Apache Cassandra
14 14 (0.67%) Spotfire
15 12 (0.57%) Neo4j
Development Applications
1 138 (6.59%) JIRA
2 120 (5.73%) Git (software)
3 78 (3.73%) Jenkins
4 56 (2.68%) Visual Studio
5 52 (2.48%) Eclipse
6 50 (2.39%) Subversion
7 27 (1.29%) GitLab
8 26 (1.24%) Maven
9 20 (0.96%) Selenium
10 19 (0.91%) JUnit
11 18 (0.86%) IDA Disassembler
11 18 (0.86%) Rational DOORS
12 16 (0.76%) Bitbucket
12 16 (0.76%) Cucumber
13 15 (0.72%) GCC
14 10 (0.48%) Mockito
15 9 (0.43%) Mocha
15 9 (0.43%) Rational Team Concert
15 9 (0.43%) TeamCity
16 8 (0.38%) Visual Studio Code
General
1 277 (13.23%) Finance
2 206 (9.84%) Electronics
3 120 (5.73%) Manufacturing
4 87 (4.16%) Marketing
5 81 (3.87%) Public Sector
6 80 (3.82%) Telecoms
7 75 (3.58%) Banking
8 65 (3.11%) Legal
9 55 (2.63%) Aerospace
10 52 (2.48%) Law
11 45 (2.15%) Games
12 43 (2.05%) Automotive
13 32 (1.53%) Military
14 30 (1.43%) Retail
15 28 (1.34%) Local Government
16 14 (0.67%) Advertising
17 10 (0.48%) Publishing
18 7 (0.33%) Billing
19 5 (0.24%) Back Office
20 4 (0.19%) Pharmaceutical
Job Titles
1 431 (20.59%) Software Engineer
2 340 (16.24%) Developer
3 247 (11.80%) Embedded Engineer
4 160 (7.64%) Embedded Software Engineer
5 111 (5.30%) Senior Software Engineer
6 110 (5.26%) Architect
7 106 (5.06%) Consultant
8 87 (4.16%) Analyst
9 81 (3.87%) C++ Software Engineer
10 72 (3.44%) C Software Engineer
10 72 (3.44%) Software Developer
11 70 (3.34%) Senior Developer
12 57 (2.72%) Linux Engineer
13 54 (2.58%) C++ Developer
14 53 (2.53%) Data Scientist
15 52 (2.48%) C/C++ Software Engineer
15 52 (2.48%) Systems Engineer
16 48 (2.29%) Solutions Architect
17 46 (2.20%) Design Engineer
18 44 (2.10%) IT Support
Libraries, Frameworks & Software Standards
1 134 (6.40%) HTML
2 111 (5.30%) .NET
3 74 (3.54%) CSS
4 63 (3.01%) Web Services
5 62 (2.96%) HTML5
5 62 (2.96%) React
6 61 (2.91%) Kafka
7 58 (2.77%) Node.js
8 55 (2.63%) RESTful
9 51 (2.44%) REST
10 39 (1.86%) Spring
11 37 (1.77%) AngularJS
12 32 (1.53%) 802.1X
12 32 (1.53%) J2EE
13 31 (1.48%) XMPP
14 27 (1.29%) JSON
14 27 (1.29%) Spring Boot
15 26 (1.24%) WPF
16 25 (1.19%) SOAP
17 22 (1.05%) XML
Miscellaneous
1 166 (7.93%) Analytical Skills
2 155 (7.41%) Algorithms
3 105 (5.02%) Embedded Systems
4 101 (4.83%) Management Information System
5 85 (4.06%) Self-Motivation
6 76 (3.63%) Field-Programmable Gate Array
7 69 (3.30%) User Experience
8 49 (2.34%) Robotics
9 48 (2.29%) Enterprise Software
10 46 (2.20%) Mobile App
11 45 (2.15%) Data Structures
12 44 (2.10%) Greenfield Project
13 40 (1.91%) Internet of Things
14 38 (1.82%) VHDL
15 31 (1.48%) Virtual Team
16 29 (1.39%) Data Centre
17 25 (1.19%) Cyberattack
17 25 (1.19%) Device Driver
17 25 (1.19%) Driving Licence
17 25 (1.19%) Verilog
Operating Systems
1 500 (23.89%) Linux
2 195 (9.32%) Windows
3 102 (4.87%) Android
4 80 (3.82%) Unix
5 56 (2.68%) Apple iOS
6 54 (2.58%) Embedded Linux
7 40 (1.91%) CentOS
8 37 (1.77%) Red Hat Enterprise Linux
9 21 (1.00%) Windows Server
10 18 (0.86%) Debian
11 16 (0.76%) Robot Operating System
12 15 (0.72%) Windows 10
13 9 (0.43%) Ubuntu
14 7 (0.33%) Fedora
14 7 (0.33%) Windows Server 2012
15 6 (0.29%) Mac OS
15 6 (0.29%) VxWorks
15 6 (0.29%) Windows 7
15 6 (0.29%) Windows Server 2003
15 6 (0.29%) Windows Server 2008
Processes & Methodologies
1 636 (30.39%) Software Engineering
2 533 (25.47%) Agile Software Development
3 285 (13.62%) Problem-Solving
4 243 (11.61%) Mathematics
5 230 (10.99%) Scrum
6 227 (10.85%) Test Automation
7 224 (10.70%) Computer Science
8 196 (9.36%) Analytics
9 185 (8.84%) DevOps
10 170 (8.12%) Cybersecurity
11 156 (7.45%) Project Management
12 152 (7.26%) Data Science
13 141 (6.74%) Continuous Integration
14 128 (6.12%) Open Source
15 125 (5.97%) Mentoring
16 122 (5.83%) Validation
17 120 (5.73%) Machine Learning
18 117 (5.59%) Artificial Intelligence
19 111 (5.30%) OO
20 110 (5.26%) Stakeholder Management
Programming Languages
1 897 (42.86%) C++
2 573 (27.38%) Python
3 465 (22.22%) Java
4 319 (15.24%) SQL
5 317 (15.15%) C#
6 204 (9.75%) JavaScript
7 157 (7.50%) Embedded C
8 84 (4.01%) Go
9 71 (3.39%) Bash Shell
9 71 (3.39%) MATLAB
10 66 (3.15%) R
11 64 (3.06%) Embedded C++
12 63 (3.01%) Perl
13 61 (2.91%) PHP
14 39 (1.86%) Java 8
15 38 (1.82%) TypeScript
16 29 (1.39%) PowerShell
17 28 (1.34%) Ruby
18 27 (1.29%) T-SQL
19 26 (1.24%) Scala
Qualifications
1 392 (18.73%) Degree
2 287 (13.71%) Security Cleared
3 209 (9.99%) SC Cleared
4 140 (6.69%) DV Cleared
5 69 (3.30%) PhD
6 61 (2.91%) Computer Science Degree
7 26 (1.24%) CISSP
8 21 (1.00%) Cisco Certification
9 20 (0.96%) Microsoft Certification
10 16 (0.76%) BPSS Clearance
11 15 (0.72%) CCNA
12 14 (0.67%) CISM
12 14 (0.67%) Master's Degree
13 13 (0.62%) CEH
14 10 (0.48%) GIAC
14 10 (0.48%) Numerate Degree
15 9 (0.43%) MCSE
15 9 (0.43%) SSCP
16 8 (0.38%) HNC
16 8 (0.38%) Network+ Certification
Quality Assurance & Compliance
1 170 (8.12%) QA
2 53 (2.53%) MISRA
3 36 (1.72%) SLA
4 26 (1.24%) GDPR
5 16 (0.76%) ISO 13485
6 15 (0.72%) Def Stans
7 13 (0.62%) ISO 26262
8 12 (0.57%) MISRA C
9 11 (0.53%) ISO 9001
9 11 (0.53%) ISO/IEC 27001
9 11 (0.53%) PMO
10 8 (0.38%) Data Quality
10 8 (0.38%) IEC 61508
11 7 (0.33%) NIST
12 5 (0.24%) IEC 62304
13 4 (0.19%) ISO/IEC 15288
13 4 (0.19%) NCSC
14 3 (0.14%) ARP4754
15 2 (0.096%) CDISC
15 2 (0.096%) MiFID
System Software
1 136 (6.50%) Firmware
2 121 (5.78%) Docker
3 43 (2.05%) VMware Infrastructure
4 36 (1.72%) Active Directory
5 16 (0.76%) VirtualBox
6 14 (0.67%) Kamailio
7 13 (0.62%) VMware ESXi
8 11 (0.53%) KVM
9 10 (0.48%) Postfix
10 9 (0.43%) iptables
10 9 (0.43%) Xen
11 7 (0.33%) Hyper-V
11 7 (0.33%) OpenSIPS
11 7 (0.33%) QEMU
12 6 (0.29%) Apache Flume
12 6 (0.29%) Virtual Machines
12 6 (0.29%) vSphere
13 5 (0.24%) oVirt
13 5 (0.24%) Samba
13 5 (0.24%) Slurm Workload Manager
Systems Management
1 90 (4.30%) Ansible
2 62 (2.96%) Kubernetes
3 48 (2.29%) Terraform
4 43 (2.05%) Puppet
5 32 (1.53%) Kibana
6 25 (1.19%) Opscode Chef
7 24 (1.15%) Graylog
8 15 (0.72%) ZABBIX
9 14 (0.67%) Nagios
10 13 (0.62%) SELinux
10 13 (0.62%) vCenter Server
11 8 (0.38%) BMC PATROL
11 8 (0.38%) SCOM
12 7 (0.33%) Galera Cluster
12 7 (0.33%) HAProxy
13 6 (0.29%) Docker Swarm
13 6 (0.29%) FlexNet
13 6 (0.29%) Oozie
13 6 (0.29%) QRadar
14 5 (0.24%) Prometheus
Vendors
1 203 (9.70%) Microsoft
2 75 (3.58%) Google
3 68 (3.25%) VMware
4 60 (2.87%) Oracle
5 52 (2.48%) Atlassian
6 46 (2.20%) SAP
7 35 (1.67%) Red Hat
8 34 (1.62%) Cisco
9 24 (1.15%) Klocwork
10 23 (1.10%) Apple
11 17 (0.81%) Guidewire
12 15 (0.72%) Dell
12 15 (0.72%) Splunk
12 15 (0.72%) Xilinx
13 14 (0.67%) HP
14 13 (0.62%) Sparx
14 13 (0.62%) Xamarin
15 12 (0.57%) IBM
16 11 (0.53%) Palo Alto
16 11 (0.53%) Sybase