Period
to 8 April 2020

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 8 April 2020 with a comparison to the same period in the previous 2 years.

C
Central London > City of London
6 months to
8 Apr 2020
Same period 2019 Same period 2018
Rank 151 158 164
Rank change year-on-year +7 +6 -28
Permanent jobs citing C 156 199 202
As % of all permanent jobs advertised in the City of London 1.81% 1.93% 1.87%
As % of the Programming Languages category 3.25% 3.11% 3.15%
Number of salaries quoted 147 180 181
Median annual salary £65,000 £72,500 £70,000
Median salary % change year-on-year -10.34% +3.57% -6.67%
10th Percentile £50,000 £37,375 £41,250
90th Percentile £115,000 £105,000 £110,000
Central London median annual salary £70,000 £65,000 £67,500
% change year-on-year +7.69% -3.70% -3.57%

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 4,807 6,389 6,418
As % of all permanent IT jobs advertised in the City of London 55.77% 61.93% 59.46%
Number of salaries quoted 4,264 5,732 5,722
Median annual salary £70,000 £67,500 £62,500
Median salary % change year-on-year +3.70% +8.00% +4.17%
10th Percentile £43,750 £40,250 £39,750
90th Percentile £105,000 £96,250 £95,000
Central London median annual salary £70,000 £65,000 £60,000
% change year-on-year +7.69% +8.33% -

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 8 April 2020.

Salary histogram for C in the City of London

For the 6 months to 8 April 2020, 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 70 (44.87%) C++
2 61 (39.10%) Java
3 48 (30.77%) Software Engineering
4 47 (30.13%) Finance
5 38 (24.36%) Agile Software Development
5 38 (24.36%) JavaScript
6 34 (21.79%) Python
7 33 (21.15%) TypeScript
7 33 (21.15%) DevOps
8 32 (20.51%) Machine Learning
9 28 (17.95%) Algorithms
10 26 (16.67%) Open Source
10 26 (16.67%) Apache Flex
11 25 (16.03%) NoSQL
12 24 (15.38%) Redis
12 24 (15.38%) Elasticsearch
12 24 (15.38%) Continuous Integration
13 23 (14.74%) Test Automation
13 23 (14.74%) Linux
14 19 (12.18%) SQL
14 19 (12.18%) Degree
15 18 (11.54%) Microsoft
15 18 (11.54%) Node.js
16 16 (10.26%) CSS
17 15 (9.62%) Retail
17 15 (9.62%) AWS
18 14 (8.97%) Git (software)
18 14 (8.97%) Azure
18 14 (8.97%) Big Data
18 14 (8.97%) Fintech

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 24 (15.38%) Elasticsearch
2 9 (5.77%) SharePoint
3 5 (3.21%) Confluence
3 5 (3.21%) Exchange Server 2010
3 5 (3.21%) MS Exchange
4 3 (1.92%) Apache Spark
5 1 (0.64%) CICS
5 1 (0.64%) SAS
5 1 (0.64%) Tomcat
5 1 (0.64%) Tornado
5 1 (0.64%) WebSphere
5 1 (0.64%) WebSphere Application Server
Applications
1 8 (5.13%) Microsoft Office
2 1 (0.64%) Microsoft PowerPoint
2 1 (0.64%) Photoshop
Business Applications
1 5 (3.21%) Workday HCM
Cloud Services
1 15 (9.62%) AWS
2 14 (8.97%) Azure
3 10 (6.41%) Office 365
4 6 (3.85%) GCP
5 4 (2.56%) BlazeMeter
5 4 (2.56%) GitHub
6 3 (1.92%) Azure Active Directory
6 3 (1.92%) IaaS
6 3 (1.92%) PaaS
7 1 (0.64%) Google Analytics
7 1 (0.64%) Power Platform
7 1 (0.64%) Serverless
Communications & Networking
1 6 (3.85%) Firewall
2 4 (2.56%) DHCP
2 4 (2.56%) DNS
2 4 (2.56%) Internet
2 4 (2.56%) TCP/IP
3 2 (1.28%) DMZ
3 2 (1.28%) PBX
3 2 (1.28%) Remote Desktop
3 2 (1.28%) VoIP
4 1 (0.64%) MQTT
4 1 (0.64%) WAAS
4 1 (0.64%) Wireless
Database & Business Intelligence
1 25 (16.03%) NoSQL
2 24 (15.38%) Redis
3 14 (8.97%) Big Data
4 6 (3.85%) DB2
5 5 (3.21%) BusinessObjects
5 5 (3.21%) MS Access
5 5 (3.21%) SQL Server
6 4 (2.56%) Oracle Database
6 4 (2.56%) Oracle Database 10g
6 4 (2.56%) Oracle Database 11g
7 3 (1.92%) MySQL
8 2 (1.28%) PostgreSQL
8 2 (1.28%) Relational Database
9 1 (0.64%) Apache Cassandra
9 1 (0.64%) Apache Hive
9 1 (0.64%) Hadoop
9 1 (0.64%) Power BI
9 1 (0.64%) Text Mining
Development Applications
1 14 (8.97%) Git (software)
2 10 (6.41%) JIRA
3 5 (3.21%) Cucumber
3 5 (3.21%) Team Foundation Server
4 4 (2.56%) eggPlant
4 4 (2.56%) Jenkins
4 4 (2.56%) JMeter
4 4 (2.56%) LoadRunner
4 4 (2.56%) Postman
4 4 (2.56%) REST Assured
4 4 (2.56%) SoapUI
4 4 (2.56%) The Grinder
5 3 (1.92%) Selenium
6 1 (0.64%) Atlassian Bamboo
6 1 (0.64%) CMake
6 1 (0.64%) Mocha
6 1 (0.64%) webpack
6 1 (0.64%) Xcode
General
1 47 (30.13%) Finance
2 15 (9.62%) Retail
3 12 (7.69%) Law
4 8 (5.13%) Banking
5 3 (1.92%) Billing
6 2 (1.28%) Automotive
6 2 (1.28%) German Language
6 2 (1.28%) Legal
6 2 (1.28%) Manufacturing
6 2 (1.28%) Pharmaceutical
6 2 (1.28%) Public Sector
6 2 (1.28%) Telecoms
7 1 (0.64%) Advertising
7 1 (0.64%) Financial Institution
7 1 (0.64%) Games
7 1 (0.64%) Investment Banking
7 1 (0.64%) Marketing
Job Titles
1 30 (19.23%) Software Engineer
2 29 (18.59%) Developer
3 16 (10.26%) Senior Software Engineer
4 10 (6.41%) Senior Developer
5 8 (5.13%) Analyst
6 7 (4.49%) .NET Developer
6 7 (4.49%) Consultant
6 7 (4.49%) JavaScript Engineer
6 7 (4.49%) QA Engineer
6 7 (4.49%) Senior QA Engineer
7 6 (3.85%) Business Analyst
7 6 (3.85%) Project Manager
8 5 (3.21%) Architect
8 5 (3.21%) Full Stack Developer
8 5 (3.21%) IT Director
8 5 (3.21%) Java Engineer
8 5 (3.21%) PHP Developer
8 5 (3.21%) Senior PHP Developer
8 5 (3.21%) Test Engineer
9 4 (2.56%) Test Automation Engineer
Libraries, Frameworks & Software Standards
1 26 (16.67%) Apache Flex
2 18 (11.54%) Node.js
3 16 (10.26%) CSS
4 13 (8.33%) React
5 11 (7.05%) .NET
5 11 (7.05%) HTML
6 7 (4.49%) .NET Framework
6 7 (4.49%) AngularJS
6 7 (4.49%) Entity Framework
7 6 (3.85%) Kafka
7 6 (3.85%) Spring
7 6 (3.85%) Vue.js
8 5 (3.21%) Angular 2
8 5 (3.21%) Middleware
8 5 (3.21%) Web Services
9 4 (2.56%) Ember.js
9 4 (2.56%) Gherkin
9 4 (2.56%) Meteor
9 4 (2.56%) Polymer
10 3 (1.92%) REST
Miscellaneous
1 28 (17.95%) Algorithms
2 11 (7.05%) Mobile App
3 10 (6.41%) Smart City
4 9 (5.77%) Analytical Skills
5 8 (5.13%) Linux Command Line
6 7 (4.49%) User Experience
7 5 (3.21%) Greenfield Project
8 4 (2.56%) Handset
9 2 (1.28%) Data Structures
9 2 (1.28%) Hedge funds
9 2 (1.28%) Management Information System
10 1 (0.64%) Data Centre
10 1 (0.64%) e-Learning
10 1 (0.64%) Equities
10 1 (0.64%) Foreign Exchange (FX)
10 1 (0.64%) IBM Mainframe
10 1 (0.64%) Learning Management System
10 1 (0.64%) Mainframe
10 1 (0.64%) Online Games
10 1 (0.64%) Social Network
Operating Systems
1 23 (14.74%) Linux
2 12 (7.69%) Unix
3 6 (3.85%) Windows
4 5 (3.21%) Windows Server
5 3 (1.92%) Android
5 3 (1.92%) Windows 10
5 3 (1.92%) Windows Server 2016
6 2 (1.28%) Solaris
6 2 (1.28%) Windows Server 2012
7 1 (0.64%) Apple iOS
7 1 (0.64%) Debian
7 1 (0.64%) Red Hat Enterprise Linux
7 1 (0.64%) Ubuntu
Processes & Methodologies
1 48 (30.77%) Software Engineering
2 38 (24.36%) Agile Software Development
3 33 (21.15%) DevOps
4 32 (20.51%) Machine Learning
5 26 (16.67%) Open Source
6 24 (15.38%) Continuous Integration
7 23 (14.74%) Test Automation
8 14 (8.97%) Fintech
8 14 (8.97%) Problem-Solving
9 13 (8.33%) Computer Science
10 12 (7.69%) SDET
10 12 (7.69%) Stakeholder Management
11 11 (7.05%) Business Analysis
11 11 (7.05%) Migration
11 11 (7.05%) Multithreading
12 10 (6.41%) Cryptography
12 10 (6.41%) Mathematics
12 10 (6.41%) Web Development
13 9 (5.77%) Project Management
14 8 (5.13%) OO
Programming Languages
1 70 (44.87%) C++
2 61 (39.10%) Java
3 38 (24.36%) JavaScript
4 34 (21.79%) Python
5 33 (21.15%) TypeScript
6 19 (12.18%) SQL
7 13 (8.33%) C#
8 11 (7.05%) PHP
9 9 (5.77%) VB
10 5 (3.21%) VBA
10 5 (3.21%) VBScript
11 4 (2.56%) Kotlin
11 4 (2.56%) Objective-C
11 4 (2.56%) Scala
12 3 (1.92%) Go
12 3 (1.92%) Perl
12 3 (1.92%) PowerShell
12 3 (1.92%) R
13 2 (1.28%) MATLAB
13 2 (1.28%) Shell Script
Qualifications
1 19 (12.18%) Degree
2 7 (4.49%) Microsoft Certification
3 5 (3.21%) (ISC)2 CCSP
3 5 (3.21%) CISA
3 5 (3.21%) Cisco Certification
3 5 (3.21%) CISM
3 5 (3.21%) CISSP
3 5 (3.21%) CRISC
3 5 (3.21%) MCSA
4 4 (2.56%) SC Cleared
4 4 (2.56%) Security Cleared
5 3 (1.92%) IIBA
5 3 (1.92%) ISTQB
5 3 (1.92%) Six Sigma Green Belt
6 2 (1.28%) MCP
6 2 (1.28%) MCSE
6 2 (1.28%) PhD
6 2 (1.28%) RHCE
7 1 (0.64%) PMI Certification
7 1 (0.64%) PMP
Quality Assurance & Compliance
1 10 (6.41%) QA
2 5 (3.21%) COBIT
2 5 (3.21%) ISO/IEC 27001
2 5 (3.21%) NIST
3 3 (1.92%) SLA
System Software
1 7 (4.49%) Active Directory
2 6 (3.85%) Docker
3 3 (1.92%) Firmware
4 2 (1.28%) Hyper-V
4 2 (1.28%) NFS
5 1 (0.64%) ACF2
5 1 (0.64%) BitLocker
5 1 (0.64%) OpenAM
5 1 (0.64%) RACF
Systems Management
1 4 (2.56%) Ansible
1 4 (2.56%) HP Quality Center
1 4 (2.56%) Microsoft Intune
2 3 (1.92%) Kubernetes
3 2 (1.28%) McAfee ePO
3 2 (1.28%) Terraform
4 1 (0.64%) BladeLogic
4 1 (0.64%) HP ALM
4 1 (0.64%) Single Sign-On
Vendors
1 18 (11.54%) Microsoft
2 10 (6.41%) Workday
3 9 (5.77%) Oracle
4 5 (3.21%) Blue Prism
4 5 (3.21%) HP
4 5 (3.21%) Xceptor
5 4 (2.56%) YouTube
6 3 (1.92%) Google
6 3 (1.92%) ServiceNow
7 2 (1.28%) Facebook
7 2 (1.28%) McAfee
7 2 (1.28%) Salesforce.com
7 2 (1.28%) Sophos
7 2 (1.28%) Splunk
7 2 (1.28%) Tanium
7 2 (1.28%) WatchGuard
8 1 (0.64%) Cisco
8 1 (0.64%) F5
8 1 (0.64%) ForgeRock
8 1 (0.64%) Red Hat