Job Vacancy Trend Salary Trend Salary Histogram Job Locations Skill Sets
Period
to 22 September 2021

The following table provides summary statistics for permanent job vacancies advertised in London 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 22 September 2021 with a comparison to the same period in the previous 2 years.

C
England > London
6 months to
22 Sep 2021		 Same period 2020 Same period 2019
Rank 175 179 171
Rank change year-on-year +4 -8 -11
Permanent jobs citing C 1,054 400 1,135
As % of all permanent jobs advertised in London 2.14% 1.95% 2.06%
As % of the Programming Languages category 3.53% 3.19% 3.68%
Number of salaries quoted 551 349 817
10th Percentile £41,250 £43,750 £37,500
25th Percentile £50,000 £56,250 £45,000
Median annual salary (50th Percentile) £65,000 £75,000 £60,000
Median % change year-on-year -13.33% +25.00% -7.69%
75th Percentile £85,000 £115,000 £77,500
90th Percentile £105,000 £147,500 £96,750
England median annual salary £57,500 £56,510 £50,000
% change year-on-year +1.75% +13.02% -

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 advertised in London with a requirement for coding skills.

All Programming Languages
London
Permanent vacancies with a requirement for coding skills 29,896 12,538 30,843
As % of all permanent IT jobs advertised in London 60.83% 61.05% 55.97%
Number of salaries quoted 18,444 10,621 25,967
10th Percentile £45,000 £45,000 £38,750
25th Percentile £55,000 £53,750 £49,625
Median annual salary (50th Percentile) £72,500 £70,000 £65,000
Median % change year-on-year +3.57% +7.69% +4.00%
75th Percentile £90,000 £87,500 £83,750
90th Percentile £108,750 £111,250 £100,000
England median annual salary £60,000 £57,500 £52,500
% change year-on-year +4.35% +9.52% +5.00%

C
Job Vacancy Trend in London

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

Job vacancy trend for C in London

C
Salary Trend in London

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

Salary trend for C in London

C
Salary Histogram in London

Salary distribution for jobs citing C in London over the 6 months to 22 September 2021.

Salary histogram for C in London

C
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing C within the London region over the 6 months to 22 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
Permanent
IT Job Ads		 Median Salary
Past 6 Months		 Median Salary
% Change
on Same Period
Last Year		 Live
Job
Vacancies
Central London -5 101 £67,500 +3.85% 44
West London +7 75 £65,000 +4.00% 23
South London -9 19 £50,000 +38.89% 10
East London -8 13 £75,000 +3.45% 6
North London - 3 £27,500 - 4
C
England

For the 6 months to 22 September 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 across the London region with a requirement for C.

1 399 (37.86%) Python
2 365 (34.63%) C++
3 353 (33.49%) Agile Software Development
4 333 (31.59%) Software Engineering
5 307 (29.13%) Finance
6 304 (28.84%) Java
6 304 (28.84%) Social Skills
7 260 (24.67%) Degree
8 248 (23.53%) SQL
9 241 (22.87%) Linux
10 229 (21.73%) AWS
11 202 (19.17%) JavaScript
12 199 (18.88%) C#
13 173 (16.41%) Computer Science
14 159 (15.09%) Docker
15 158 (14.99%) GCP
16 148 (14.04%) PostgreSQL
17 145 (13.76%) Problem-Solving
18 141 (13.38%) Analytics
19 138 (13.09%) Kubernetes
20 129 (12.24%) Azure
21 122 (11.57%) Test Automation
22 121 (11.48%) Continuous Integration
22 121 (11.48%) React
22 121 (11.48%) DevOps
23 117 (11.10%) Artificial Intelligence
24 110 (10.44%) Mathematics
25 109 (10.34%) Node.js
26 108 (10.25%) SDLC
27 107 (10.15%) Analytical Skills

C
Co-occurring IT Skills in London 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 27 (2.56%) Confluence
2 22 (2.09%) Apache Spark
3 21 (1.99%) SharePoint
4 20 (1.90%) Tomcat
5 19 (1.80%) Elasticsearch
6 18 (1.71%) Apache
7 16 (1.52%) Tornado
8 15 (1.42%) WebSphere
9 13 (1.23%) IIS
10 11 (1.04%) SAS
11 10 (0.95%) nginx
11 10 (0.95%) Oracle SOA Suite
12 8 (0.76%) JBoss
12 8 (0.76%) Oracle HTTP Server
12 8 (0.76%) WebLogic
13 5 (0.47%) CICS
13 5 (0.47%) IBM HTTP Server
13 5 (0.47%) MQSeries
14 4 (0.38%) Apache Pulsar
14 4 (0.38%) ejabberd
Applications
1 33 (3.13%) Microsoft Office
2 22 (2.09%) Microsoft Excel
3 12 (1.14%) Microsoft PowerPoint
4 6 (0.57%) MS Visio
5 4 (0.38%) Chatbot
6 1 (0.095%) Photoshop
Business Applications
1 11 (1.04%) SAP S/4HANA
2 6 (0.57%) Dynamics NAV
2 6 (0.57%) SAP SD
3 4 (0.38%) Dynamics CRM
3 4 (0.38%) SAP CRM
4 3 (0.28%) Oracle Procure-to-Pay
4 3 (0.28%) SAP MDG
4 3 (0.28%) SAP R/3
4 3 (0.28%) Sentinel
5 2 (0.19%) Dynamics GP
5 2 (0.19%) Magento
5 2 (0.19%) NetSuite
5 2 (0.19%) SAP CO
5 2 (0.19%) SAP FI
5 2 (0.19%) SAP FI/CO
5 2 (0.19%) Shopify
5 2 (0.19%) Sparx Enterprise Architect
6 1 (0.095%) Dynamics AX
6 1 (0.095%) Oracle Payroll
6 1 (0.095%) Salesforce.com CRM
Cloud Services
1 229 (21.73%) AWS
2 158 (14.99%) GCP
3 129 (12.24%) Azure
4 55 (5.22%) GitHub
5 44 (4.17%) SaaS
6 40 (3.80%) Serverless
7 25 (2.37%) Cloud Computing
8 21 (1.99%) OpenShift
9 18 (1.71%) Microsoft 365
10 17 (1.61%) Power Platform
11 16 (1.52%) PaaS
12 14 (1.33%) AWS Lambda
13 12 (1.14%) Amazon S3
13 12 (1.14%) Datadog
13 12 (1.14%) Heroku
13 12 (1.14%) Logz.io
13 12 (1.14%) Slack
14 11 (1.04%) Amazon EKS
14 11 (1.04%) AWS CloudFormation
14 11 (1.04%) Snowflake
Communications & Networking
1 85 (8.06%) HTTP
2 58 (5.50%) TCP/IP
3 47 (4.46%) Firewall
4 42 (3.98%) Broadband
5 30 (2.85%) Bluetooth
6 27 (2.56%) DVB
7 21 (1.99%) LAN
8 19 (1.80%) SMS
8 19 (1.80%) VPN
9 15 (1.42%) Ethernet
9 15 (1.42%) Network Security
9 15 (1.42%) WAN
10 14 (1.33%) VoIP
11 13 (1.23%) Asterisk PBX
12 12 (1.14%) BGP
13 10 (0.95%) IPv4
13 10 (0.95%) Profibus
13 10 (0.95%) Wi-Fi
14 8 (0.76%) DNS
14 8 (0.76%) OSPF
Database & Business Intelligence
1 148 (14.04%) PostgreSQL
2 93 (8.82%) NoSQL
3 71 (6.74%) Relational Database
4 50 (4.74%) MySQL
5 47 (4.46%) SQL Server
6 42 (3.98%) Big Data
7 36 (3.42%) MongoDB
8 34 (3.23%) Redis
9 27 (2.56%) Tableau
10 23 (2.18%) SQL Server Integration Services
11 20 (1.90%) RDBMS
12 19 (1.80%) Data Mining
13 18 (1.71%) Data Warehouse
14 17 (1.61%) Amazon DynamoDB
15 14 (1.33%) Blockchain
15 14 (1.33%) Hadoop
15 14 (1.33%) Oracle Database
15 14 (1.33%) Power BI
15 14 (1.33%) SAP HANA
16 13 (1.23%) SQLite
Development Applications
1 107 (10.15%) Git (software)
2 51 (4.84%) Jenkins
3 48 (4.55%) JIRA
4 47 (4.46%) GitLab
5 35 (3.32%) Octopus Deploy
5 35 (3.32%) TeamCity
6 31 (2.94%) Selenium
7 27 (2.56%) GNU Toolchain
8 22 (2.09%) Subversion
9 19 (1.80%) Maven
10 16 (1.52%) Cucumber
11 15 (1.42%) webpack
12 14 (1.33%) CircleCI
12 14 (1.33%) JMeter
13 13 (1.23%) Cypress.io
14 12 (1.14%) GoCD
14 12 (1.14%) Mocha
15 11 (1.04%) Postman
15 11 (1.04%) Ranorex
16 10 (0.95%) SoapUI
General
1 307 (29.13%) Finance
2 304 (28.84%) Social Skills
3 107 (10.15%) Analytical Skills
4 94 (8.92%) Marketing
5 82 (7.78%) Banking
6 79 (7.50%) Games
7 59 (5.60%) Law
8 55 (5.22%) Retail
9 46 (4.36%) Manufacturing
10 44 (4.17%) Public Sector
11 43 (4.08%) Legal
12 41 (3.89%) Electronics
12 41 (3.89%) Inclusion and Diversity
13 25 (2.37%) Telecoms
14 21 (1.99%) Organisational Skills
14 21 (1.99%) Presentation Skills
15 20 (1.90%) Back Office
16 19 (1.80%) Public Speaking
17 18 (1.71%) Pharmaceutical
18 17 (1.61%) Advertising
Job Titles
1 233 (22.11%) Developer
2 181 (17.17%) Software Engineer
3 74 (7.02%) Consultant
4 67 (6.36%) Senior Developer
5 66 (6.26%) Analyst
6 64 (6.07%) Software Developer
7 51 (4.84%) Architect
8 49 (4.65%) Senior Software Engineer
9 39 (3.70%) Backend Developer
10 38 (3.61%) Java Developer
11 36 (3.42%) Embedded Engineer
12 33 (3.13%) C++ Developer
12 33 (3.13%) Managing Consultant
13 30 (2.85%) Python Developer
14 27 (2.56%) Senior Software Developer
15 26 (2.47%) Embedded Software Engineer
16 25 (2.37%) Data Engineer
17 24 (2.28%) C++ Software Developer
18 22 (2.09%) Strategy Consultant
19 21 (1.99%) Data Consultant
Libraries, Frameworks & Software Standards
1 121 (11.48%) React
2 109 (10.34%) Node.js
3 106 (10.06%) .NET
4 96 (9.11%) REST
5 94 (8.92%) HTML
6 62 (5.88%) Spring
7 61 (5.79%) .NET Core
8 56 (5.31%) RESTful
9 51 (4.84%) CSS
10 50 (4.74%) HTML5
10 50 (4.74%) JSON
11 49 (4.65%) AngularJS
12 47 (4.46%) RabbitMQ
13 39 (3.70%) Middleware
14 32 (3.04%) ASP.NET
15 31 (2.94%) Kafka
16 30 (2.85%) COM
16 30 (2.85%) Java EE
16 30 (2.85%) XML
17 29 (2.75%) Ruby on Rails
Miscellaneous
1 92 (8.73%) User Experience
2 83 (7.87%) Algorithms
3 49 (4.65%) Data Structures
4 45 (4.27%) Self-Motivation
4 45 (4.27%) Social Media
5 33 (3.13%) Virtual Team
6 29 (2.75%) STB
7 28 (2.66%) Data Centre
7 28 (2.66%) Digital TV
7 28 (2.66%) Management Information System
7 28 (2.66%) Mobile App
7 28 (2.66%) Video\Live Streaming
8 27 (2.56%) MPEG
9 24 (2.28%) Blog
10 23 (2.18%) Life Science
11 22 (2.09%) Robotics
12 21 (1.99%) Cyberattack
13 18 (1.71%) Public Cloud
14 15 (1.42%) Augmented Reality
14 15 (1.42%) Driving Licence
Operating Systems
1 241 (22.87%) Linux
2 88 (8.35%) Windows
3 82 (7.78%) Unix
4 58 (5.50%) Android
5 42 (3.98%) Apple iOS
6 21 (1.99%) Embedded Linux
7 16 (1.52%) Mac OS X
8 11 (1.04%) Windows Server 2016
9 10 (0.95%) Windows Server 2008
10 8 (0.76%) SUSE
10 8 (0.76%) SUSE Linux Enterprise Server
11 6 (0.57%) Windows 10
12 5 (0.47%) Debian
12 5 (0.47%) Kali Linux
13 4 (0.38%) Red Hat Enterprise Linux
14 3 (0.28%) FreeRTOS
14 3 (0.28%) Windows Server
15 2 (0.19%) CentOS
15 2 (0.19%) Robot Operating System
15 2 (0.19%) Windows Server 2019
Processes & Methodologies
1 353 (33.49%) Agile Software Development
2 333 (31.59%) Software Engineering
3 173 (16.41%) Computer Science
4 145 (13.76%) Problem-Solving
5 141 (13.38%) Analytics
6 122 (11.57%) Test Automation
7 121 (11.48%) Continuous Integration
7 121 (11.48%) DevOps
8 117 (11.10%) Artificial Intelligence
9 110 (10.44%) Mathematics
10 108 (10.25%) SDLC
11 105 (9.96%) Fintech
12 98 (9.30%) Microservices
13 94 (8.92%) TDD
14 82 (7.78%) Machine Learning
15 77 (7.31%) Clean Code
16 76 (7.21%) Business Intelligence
16 76 (7.21%) Project Management
17 73 (6.93%) Open Source
18 66 (6.26%) OOP
Programming Languages
1 399 (37.86%) Python
2 365 (34.63%) C++
3 304 (28.84%) Java
4 248 (23.53%) SQL
5 202 (19.17%) JavaScript
6 199 (18.88%) C#
7 107 (10.15%) TypeScript
8 95 (9.01%) Go
9 60 (5.69%) Bash Shell
10 54 (5.12%) Ruby
11 47 (4.46%) R
12 45 (4.27%) Perl
13 40 (3.80%) PHP
14 38 (3.61%) Scala
15 30 (2.85%) Rust
16 29 (2.75%) Shell Script
17 26 (2.47%) ES6
18 24 (2.28%) Assembly Language
18 24 (2.28%) PowerShell
19 22 (2.09%) Embedded C
Qualifications
1 260 (24.67%) Degree
2 78 (7.40%) Computer Science Degree
3 61 (5.79%) Security Cleared
4 50 (4.74%) SC Cleared
5 44 (4.17%) Master's Degree
6 26 (2.47%) DV Cleared
7 21 (1.99%) HND
8 17 (1.61%) Cisco Certification
8 17 (1.61%) PhD
9 16 (1.52%) HNC
10 9 (0.85%) PMI Certification
11 7 (0.66%) CCNA
11 7 (0.66%) CCNP
11 7 (0.66%) JNCIP
12 6 (0.57%) CISSP
13 5 (0.47%) CBAP
13 5 (0.47%) DBS Check
13 5 (0.47%) ITIL Certification
14 4 (0.38%) CREST Certified
14 4 (0.38%) OSCP
Quality Assurance & Compliance
1 91 (8.63%) QA
2 20 (1.90%) PSD2
3 9 (0.85%) GDPR
3 9 (0.85%) SLA
4 8 (0.76%) ISO/IEC 27001
5 7 (0.66%) Accessibility
6 5 (0.47%) NIST
6 5 (0.47%) PCI DSS
6 5 (0.47%) PMO
7 4 (0.38%) Data Quality
8 3 (0.28%) COBIT
8 3 (0.28%) IEC 61508
8 3 (0.28%) Sarbanes-Oxley
9 2 (0.19%) ISO 15022
9 2 (0.19%) ISO 20022
9 2 (0.19%) ISO 9001
9 2 (0.19%) ISO/IEC 20000
10 1 (0.095%) Def Stans
10 1 (0.095%) MISRA
10 1 (0.095%) MISRA C
System Software
1 159 (15.09%) Docker
2 32 (3.04%) Firmware
3 15 (1.42%) Active Directory
4 8 (0.76%) VMware Infrastructure
5 5 (0.47%) Snort
5 5 (0.47%) Squid
6 4 (0.38%) iptables
6 4 (0.38%) Kamailio
6 4 (0.38%) KVM
6 4 (0.38%) Postfix
6 4 (0.38%) QEMU
7 1 (0.095%) Apache ZooKeeper
7 1 (0.095%) BitLocker
7 1 (0.095%) Hyper-V
7 1 (0.095%) NFS
7 1 (0.095%) Terminal Services
7 1 (0.095%) Virtual Machines
7 1 (0.095%) VMware ESXi
7 1 (0.095%) VMware NSX
Systems Management
1 138 (13.09%) Kubernetes
2 50 (4.74%) Ansible
3 44 (4.17%) Terraform
4 19 (1.80%) Puppet
5 14 (1.33%) Prometheus
6 13 (1.23%) SCCM
7 12 (1.14%) Bugsnag
8 11 (1.04%) Nagios
8 11 (1.04%) Opscode Chef
9 8 (0.76%) HP Quality Center
10 7 (0.66%) Consul
10 7 (0.66%) Nessus
10 7 (0.66%) Packer
11 6 (0.57%) QRadar
12 5 (0.47%) Nexpose
12 5 (0.47%) Suricata
12 5 (0.47%) ZABBIX
13 4 (0.38%) Galera Cluster
13 4 (0.38%) HAProxy
14 2 (0.19%) Grafana
Vendors
1 104 (9.87%) Google
2 100 (9.49%) Oracle
3 86 (8.16%) Microsoft
4 39 (3.70%) Samsung
5 37 (3.51%) Splunk
6 34 (3.23%) SAP
7 28 (2.66%) Spotify
7 28 (2.66%) YouTube
8 24 (2.28%) Salesforce.com
9 21 (1.99%) Cisco
10 20 (1.90%) IBM
11 13 (1.23%) HP
12 12 (1.14%) Juniper
12 12 (1.14%) Red Hat
13 11 (1.04%) Palo Alto
13 11 (1.04%) Siemens
13 11 (1.04%) Yahoo!
14 10 (0.95%) VMware
15 9 (0.85%) Alibaba
16 8 (0.76%) Snapchat