Job Vacancy Trend Salary Trend Salary Histogram Job Locations Skill Sets
Period
to 15 June 2021

The following table provides summary statistics for permanent job vacancies advertised in the City of 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 15 June 2021 with a comparison to the same period in the previous 2 years.

C
Central London > City of London
6 months to
15 Jun 2021		 Same period 2020 Same period 2019
Rank 165 146 164
Rank change year-on-year -19 +18 -5
Permanent jobs citing C 69 112 191
As % of all permanent jobs advertised in the City of London 1.33% 1.77% 1.90%
As % of the Programming Languages category 2.14% 3.11% 3.10%
Number of salaries quoted 63 106 157
10th Percentile £40,000 £43,750 £37,000
25th Percentile £47,875 £52,500 £52,500
Median annual salary (50th Percentile) £60,000 £60,000 £67,500
Median % change year-on-year - -11.11% -3.57%
75th Percentile £83,125 £80,000 £92,500
90th Percentile £97,500 £113,750 £100,000
Central London median annual salary £60,000 £65,000 £62,500
% change year-on-year -7.69% +4.00% -10.71%

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 the City of London with a requirement for coding skills.

All Programming Languages
City of London
Permanent vacancies with a requirement for coding skills 3,217 3,597 6,171
As % of all permanent IT jobs advertised in the City of London 62.20% 56.74% 61.39%
Number of salaries quoted 2,954 3,223 5,570
10th Percentile £45,000 £43,750 £41,250
25th Percentile £56,250 £52,500 £52,500
Median annual salary (50th Percentile) £75,000 £70,000 £67,500
Median % change year-on-year +7.14% +3.70% +3.85%
75th Percentile £90,000 £86,250 £82,500
90th Percentile £107,500 £105,000 £95,575
Central London median annual salary £72,500 £70,000 £65,000
% change year-on-year +3.57% +7.69% +4.00%

C
Job Vacancy Trend in the City of London

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

Job vacancy trend for C in the City of London

C
Salary Trend in the City of London

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

Salary trend for C in the City of London

C
Salary Histogram in the City of London

Salary distribution for jobs citing C in the City of London over the 6 months to 15 June 2021.

Salary histogram for C in the City of London

C
Job Locations in the City of London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing C within the City of London region over the 6 months to 15 June 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
London Bridge - 1 £77,500 -
C
Central London

For the 6 months to 15 June 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 City of London region with a requirement for C.

1 27 (39.13%) Computer Science
2 25 (36.23%) Agile Software Development
3 21 (30.43%) Python
4 19 (27.54%) Degree
5 18 (26.09%) SQL
6 16 (23.19%) C++
6 16 (23.19%) Test Automation
7 15 (21.74%) QA
8 14 (20.29%) Selenium
8 14 (20.29%) Test Scripting
8 14 (20.29%) Legal
9 13 (18.84%) Finance
9 13 (18.84%) Law
9 13 (18.84%) Software Engineering
9 13 (18.84%) Java
9 13 (18.84%) C#
10 12 (17.39%) SQL Server Integration Services
10 12 (17.39%) Regression Testing
10 12 (17.39%) Ranorex
10 12 (17.39%) DevOps
10 12 (17.39%) Test Planning
10 12 (17.39%) SDLC
11 11 (15.94%) Social Skills
12 10 (14.49%) JavaScript
13 9 (13.04%) Continuous Integration
14 8 (11.59%) Enterprise Architecture
14 8 (11.59%) Windows
14 8 (11.59%) Translating Business Requirements
15 7 (10.14%) Games
15 7 (10.14%) Analytical Skills

C
Co-occurring IT Skills in the City of 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 2 (2.90%) Confluence
1 2 (2.90%) SharePoint
2 1 (1.45%) Apache
2 1 (1.45%) ejabberd
2 1 (1.45%) IIS
2 1 (1.45%) nginx
2 1 (1.45%) Skype for Business
2 1 (1.45%) Tomcat
Applications
1 3 (4.35%) Microsoft Office
2 2 (2.90%) Figma
3 1 (1.45%) Microsoft Excel
3 1 (1.45%) Microsoft PowerPoint
Cloud Services
1 6 (8.70%) Azure
2 5 (7.25%) AWS
3 4 (5.80%) Microsoft 365
4 3 (4.35%) GCP
5 2 (2.90%) BlazeMeter
5 2 (2.90%) Power Platform
6 1 (1.45%) Firebase
6 1 (1.45%) Google Analytics
6 1 (1.45%) Google Data Studio
6 1 (1.45%) Heroku
6 1 (1.45%) PaaS
6 1 (1.45%) Serverless
Communications & Networking
1 2 (2.90%) 2G
1 2 (2.90%) 3G
1 2 (2.90%) 4G
1 2 (2.90%) 5G
1 2 (2.90%) Firewall
1 2 (2.90%) LTE
1 2 (2.90%) MIMO
1 2 (2.90%) PBX
1 2 (2.90%) TCP/IP
1 2 (2.90%) VoLTE
1 2 (2.90%) WAN
2 1 (1.45%) Asterisk PBX
2 1 (1.45%) BGP
2 1 (1.45%) Diameter Protocol
2 1 (1.45%) Internet
2 1 (1.45%) LAN
2 1 (1.45%) Skype
2 1 (1.45%) SNMP
2 1 (1.45%) VPN
2 1 (1.45%) Wireshark
Database & Business Intelligence
1 12 (17.39%) SQL Server Integration Services
2 3 (4.35%) Big Data
2 3 (4.35%) SQL Server
3 2 (2.90%) MS Access
3 2 (2.90%) Oracle Database
3 2 (2.90%) Oracle Database 10g
3 2 (2.90%) Oracle Database 11g
3 2 (2.90%) Power BI
3 2 (2.90%) Relational Database
4 1 (1.45%) Blockchain
4 1 (1.45%) Oracle Reports
4 1 (1.45%) PostgreSQL
4 1 (1.45%) Tableau
Development Applications
1 14 (20.29%) Selenium
2 12 (17.39%) Ranorex
3 5 (7.25%) JIRA
4 4 (5.80%) Cucumber
5 3 (4.35%) GitLab
5 3 (4.35%) LoadRunner
6 2 (2.90%) Appium
6 2 (2.90%) eggPlant
6 2 (2.90%) JMeter
6 2 (2.90%) Postman
6 2 (2.90%) REST Assured
6 2 (2.90%) SoapUI
6 2 (2.90%) SpecFlow
6 2 (2.90%) Spock
6 2 (2.90%) The Grinder
6 2 (2.90%) Visual Studio
7 1 (1.45%) Crashlytics
7 1 (1.45%) Git (software)
7 1 (1.45%) Jenkins
General
1 14 (20.29%) Legal
2 13 (18.84%) Finance
2 13 (18.84%) Law
3 11 (15.94%) Social Skills
4 7 (10.14%) Analytical Skills
4 7 (10.14%) Games
5 6 (8.70%) Advertising
6 3 (4.35%) Electronics
6 3 (4.35%) Retail
7 2 (2.90%) Documentation Skills
7 2 (2.90%) Marketing
8 1 (1.45%) Banking
8 1 (1.45%) Organisational Skills
8 1 (1.45%) Presentation Skills
8 1 (1.45%) Public Sector
Job Titles
1 10 (14.49%) Analyst
2 8 (11.59%) Developer
3 6 (8.70%) QA Analyst
3 6 (8.70%) QA Engineer
3 6 (8.70%) Technical Analyst
4 5 (7.25%) Python Engineer
5 4 (5.80%) Automation Engineer
5 4 (5.80%) Computer Engineer
5 4 (5.80%) Computer Vision Engineer
5 4 (5.80%) Games Engineer
5 4 (5.80%) QA Automation Engineer
5 4 (5.80%) Systems Manager
5 4 (5.80%) Test Automation Engineer
6 3 (4.35%) Applications Engineer
6 3 (4.35%) Consultant
6 3 (4.35%) Full Stack Developer
6 3 (4.35%) Software Engineer
6 3 (4.35%) Test Engineer
7 2 (2.90%) DevOps Developer
7 2 (2.90%) IT Engineer
Libraries, Frameworks & Software Standards
1 6 (8.70%) React
2 4 (5.80%) AngularJS
2 4 (5.80%) Unity (Game Engine)
2 4 (5.80%) Unreal Engine
3 3 (4.35%) Core Data
3 3 (4.35%) HTML
3 3 (4.35%) HTML5
3 3 (4.35%) Middleware
3 3 (4.35%) Reactive Extensions
3 3 (4.35%) REST
3 3 (4.35%) RxCocoa
3 3 (4.35%) RxSwift
3 3 (4.35%) UIKit
4 2 (2.90%) Gherkin
4 2 (2.90%) Redux
4 2 (2.90%) Ruby on Rails
4 2 (2.90%) Spring
4 2 (2.90%) Web Services
5 1 (1.45%) .NET Framework
5 1 (1.45%) XMPP
Miscellaneous
1 6 (8.70%) Video\Live Streaming
2 5 (7.25%) Mobile App
3 4 (5.80%) User Experience
4 2 (2.90%) Algorithms
4 2 (2.90%) Derivative
4 2 (2.90%) Equities
4 2 (2.90%) Private Cloud
4 2 (2.90%) Smartphone
4 2 (2.90%) Video Conferencing
5 1 (1.45%) Data Centre
5 1 (1.45%) Digital Currency
5 1 (1.45%) Embedded Systems
5 1 (1.45%) Foreign Exchange (FX)
5 1 (1.45%) Greenfield Project
5 1 (1.45%) Hedge funds
5 1 (1.45%) Hybrid Cloud
5 1 (1.45%) Linked Data
5 1 (1.45%) Management Information System
5 1 (1.45%) Virtual Team
Operating Systems
1 8 (11.59%) Windows
2 5 (7.25%) Linux
3 3 (4.35%) Android
3 3 (4.35%) Apple iOS
3 3 (4.35%) Windows 10
4 2 (2.90%) Mac OS X
4 2 (2.90%) Windows 7
5 1 (1.45%) Debian
5 1 (1.45%) Unix
Processes & Methodologies
1 27 (39.13%) Computer Science
2 25 (36.23%) Agile Software Development
3 16 (23.19%) Test Automation
4 14 (20.29%) Test Scripting
5 13 (18.84%) Software Engineering
6 12 (17.39%) DevOps
6 12 (17.39%) Regression Testing
6 12 (17.39%) SDLC
6 12 (17.39%) Test Planning
7 9 (13.04%) Continuous Integration
8 8 (11.59%) Enterprise Architecture
8 8 (11.59%) Translating Business Requirements
9 6 (8.70%) Problem-Solving
9 6 (8.70%) Scrum
10 5 (7.25%) BDD
10 5 (7.25%) Machine Learning
11 4 (5.80%) Kanban
11 4 (5.80%) Non-Functional Testing
11 4 (5.80%) Open Source
11 4 (5.80%) Stakeholder Management
Programming Languages
1 21 (30.43%) Python
2 18 (26.09%) SQL
3 16 (23.19%) C++
4 13 (18.84%) C#
4 13 (18.84%) Java
5 10 (14.49%) JavaScript
6 5 (7.25%) Ruby
7 4 (5.80%) Go
7 4 (5.80%) PHP
8 3 (4.35%) Apple Swift
8 3 (4.35%) Bash Shell
9 2 (2.90%) R
9 2 (2.90%) Rust
9 2 (2.90%) VB
9 2 (2.90%) VBScript
10 1 (1.45%) Objective-C
10 1 (1.45%) Perl
10 1 (1.45%) PowerShell
Qualifications
1 19 (27.54%) Degree
2 5 (7.25%) Computer Science Degree
2 5 (7.25%) SC Cleared
2 5 (7.25%) Security Cleared
3 2 (2.90%) CBAP
3 2 (2.90%) ITIL Foundation Certificate
3 2 (2.90%) PhD
4 1 (1.45%) Numerate Degree
Quality Assurance & Compliance
1 15 (21.74%) QA
2 1 (1.45%) Data Quality
System Software
1 3 (4.35%) Active Directory
2 2 (2.90%) Docker
3 1 (1.45%) iptables
3 1 (1.45%) Kamailio
3 1 (1.45%) KVM
3 1 (1.45%) Postfix
3 1 (1.45%) QEMU
Systems Management
1 3 (4.35%) Ansible
1 3 (4.35%) Kubernetes
1 3 (4.35%) Terraform
2 2 (2.90%) Consul
2 2 (2.90%) HP Quality Center
2 2 (2.90%) Packer
2 2 (2.90%) Single Sign-On
2 2 (2.90%) Sysprep
3 1 (1.45%) Galera Cluster
3 1 (1.45%) HAProxy
3 1 (1.45%) Microsoft Intune
3 1 (1.45%) nmon
3 1 (1.45%) Oracle Enterprise Manager
3 1 (1.45%) Puppet
3 1 (1.45%) QRadar
3 1 (1.45%) SCCM
3 1 (1.45%) ZABBIX
Vendors
1 6 (8.70%) Microsoft
2 4 (5.80%) Oracle
3 3 (4.35%) HP
4 2 (2.90%) Apple
4 2 (2.90%) Google
5 1 (1.45%) Broadcom
5 1 (1.45%) Cisco
5 1 (1.45%) EMC
5 1 (1.45%) GENBAND
5 1 (1.45%) Juniper
5 1 (1.45%) Mitel
5 1 (1.45%) Nortel
5 1 (1.45%) Percona
5 1 (1.45%) ServiceNow
5 1 (1.45%) SonicWALL
5 1 (1.45%) Splunk
5 1 (1.45%) Workday