Period
to 9 July 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 9 July 2020 with a comparison to the same period in the previous 2 years.

C
Central London > City of London
6 months to
9 Jul 2020
Same period 2019 Same period 2018
Rank 152 169 162
Rank change year-on-year +17 -7 +9
Permanent jobs citing C 93 186 229
As % of all permanent jobs advertised in the City of London 1.55% 1.78% 2.02%
As % of the Programming Languages category 2.74% 2.92% 3.31%
Number of salaries quoted 94 150 210
Median annual salary £60,000 £67,500 £67,500
Median salary % change year-on-year -11.11% - -3.57%
10th Percentile £41,625 £36,250 £40,000
90th Percentile £95,000 £100,000 £107,500
Central London median annual salary £70,000 £60,000 £70,000
% change year-on-year +16.67% -14.29% +7.69%

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 3,395 6,378 6,912
As % of all permanent IT jobs advertised in the City of London 56.59% 60.95% 60.86%
Number of salaries quoted 3,029 5,681 6,255
Median annual salary £70,000 £67,500 £65,000
Median salary % change year-on-year +3.70% +3.85% +8.33%
10th Percentile £43,750 £42,500 £40,000
90th Percentile £105,000 £95,000 £95,000
Central London median annual salary £70,000 £65,000 £62,500
% change year-on-year +7.69% +4.00% +4.17%

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 9 July 2020.

Salary histogram for C in the City of London

For the 6 months to 9 July 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 40 (43.01%) C++
2 29 (31.18%) Software Engineering
3 24 (25.81%) Java
4 23 (24.73%) Linux
5 22 (23.66%) Python
6 21 (22.58%) JavaScript
7 20 (21.51%) Agile Software Development
8 17 (18.28%) Test Automation
8 17 (18.28%) DevOps
9 16 (17.20%) Continuous Integration
10 15 (16.13%) Git (software)
11 14 (15.05%) Machine Learning
11 14 (15.05%) Finance
12 12 (12.90%) Law
12 12 (12.90%) Microsoft
12 12 (12.90%) TypeScript
13 11 (11.83%) PHP
13 11 (11.83%) SQL
13 11 (11.83%) CSS
14 10 (10.75%) Retail
14 10 (10.75%) Office 365
14 10 (10.75%) Node.js
14 10 (10.75%) Azure
14 10 (10.75%) Algorithms
14 10 (10.75%) Workday
15 9 (9.68%) Problem-Solving
15 9 (9.68%) AWS
15 9 (9.68%) QA
15 9 (9.68%) Apache Flex
15 9 (9.68%) JIRA

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 8 (8.60%) Elasticsearch
2 7 (7.53%) MS Exchange
2 7 (7.53%) SharePoint
3 5 (5.38%) Exchange Server 2010
4 4 (4.30%) Confluence
5 2 (2.15%) Skype for Business
6 1 (1.08%) Tomcat
Applications
1 2 (2.15%) Microsoft Office
1 2 (2.15%) Photoshop
2 1 (1.08%) 3ds Max
2 1 (1.08%) Acrobat
2 1 (1.08%) Adobe Illustrator
2 1 (1.08%) Adobe Premiere
2 1 (1.08%) InDesign
2 1 (1.08%) LightWave 3D
2 1 (1.08%) Microsoft PowerPoint
2 1 (1.08%) MODO
2 1 (1.08%) Revit
2 1 (1.08%) SketchUp
Business Applications
1 5 (5.38%) Workday HCM
2 1 (1.08%) Endur
Cloud Services
1 10 (10.75%) Azure
1 10 (10.75%) Office 365
2 9 (9.68%) AWS
3 4 (4.30%) BlazeMeter
3 4 (4.30%) GitHub
4 3 (3.23%) Azure Active Directory
4 3 (3.23%) GCP
4 3 (3.23%) IaaS
4 3 (3.23%) PaaS
5 1 (1.08%) Amazon S3
5 1 (1.08%) G Suite
5 1 (1.08%) OneDrive
5 1 (1.08%) Power Platform
5 1 (1.08%) Serverless
Communications & Networking
1 5 (5.38%) TCP/IP
2 4 (4.30%) Firewall
2 4 (4.30%) Internet
3 3 (3.23%) VoIP
4 2 (2.15%) DHCP
4 2 (2.15%) DNS
4 2 (2.15%) Network Security
4 2 (2.15%) PBX
4 2 (2.15%) Remote Desktop
4 2 (2.15%) Skype
4 2 (2.15%) Wireless
5 1 (1.08%) BGP
5 1 (1.08%) Cisco Nexus
5 1 (1.08%) Cisco Wireless
5 1 (1.08%) F5 BIG-IP GTM
5 1 (1.08%) F5 BIG-IP LTM
5 1 (1.08%) MQTT
5 1 (1.08%) Multicast
5 1 (1.08%) VXLAN
5 1 (1.08%) Wireshark
Database & Business Intelligence
1 9 (9.68%) NoSQL
2 8 (8.60%) Redis
3 6 (6.45%) Big Data
4 4 (4.30%) Oracle Database
4 4 (4.30%) Oracle Database 10g
4 4 (4.30%) Oracle Database 11g
4 4 (4.30%) SQL Server
5 2 (2.15%) Apache Cassandra
5 2 (2.15%) Relational Database
6 1 (1.08%) Amazon Redshift
6 1 (1.08%) Apache Hive
6 1 (1.08%) Hadoop
6 1 (1.08%) HBase
6 1 (1.08%) MySQL
6 1 (1.08%) PostgreSQL
6 1 (1.08%) Power BI
6 1 (1.08%) RDBMS
Development Applications
1 15 (16.13%) Git (software)
2 9 (9.68%) JIRA
3 4 (4.30%) Cucumber
3 4 (4.30%) eggPlant
3 4 (4.30%) JMeter
3 4 (4.30%) LoadRunner
3 4 (4.30%) Postman
3 4 (4.30%) REST Assured
3 4 (4.30%) SoapUI
3 4 (4.30%) The Grinder
4 3 (3.23%) Jenkins
4 3 (3.23%) Team Foundation Server
5 1 (1.08%) Atlassian Bamboo
5 1 (1.08%) CMake
5 1 (1.08%) Mocha
5 1 (1.08%) webpack
5 1 (1.08%) Xcode
General
1 14 (15.05%) Finance
2 12 (12.90%) Law
3 10 (10.75%) Retail
4 4 (4.30%) Banking
5 3 (3.23%) Billing
6 2 (2.15%) Automotive
6 2 (2.15%) Financial Institution
6 2 (2.15%) Games
6 2 (2.15%) German Language
6 2 (2.15%) Manufacturing
6 2 (2.15%) Pharmaceutical
6 2 (2.15%) Telecoms
7 1 (1.08%) Electronics
7 1 (1.08%) Investment Banking
7 1 (1.08%) Legal
Job Titles
1 17 (18.28%) Developer
2 13 (13.98%) Software Engineer
3 7 (7.53%) Consultant
4 6 (6.45%) QA Engineer
4 6 (6.45%) Senior Developer
4 6 (6.45%) Senior QA Engineer
5 5 (5.38%) PHP Developer
5 5 (5.38%) Senior PHP Developer
5 5 (5.38%) Test Engineer
6 4 (4.30%) .NET Developer
6 4 (4.30%) Analyst
6 4 (4.30%) Android Engineer
6 4 (4.30%) Project Manager
6 4 (4.30%) Senior Software Engineer
6 4 (4.30%) Test Automation Engineer
6 4 (4.30%) Workday Consultant
7 3 (3.23%) Business Analyst
7 3 (3.23%) Insurance Business Analyst
7 3 (3.23%) JavaScript Engineer
7 3 (3.23%) Microsoft Consultant
Libraries, Frameworks & Software Standards
1 11 (11.83%) CSS
2 10 (10.75%) Node.js
3 9 (9.68%) Apache Flex
4 6 (6.45%) HTML
5 5 (5.38%) .NET
5 5 (5.38%) Middleware
6 4 (4.30%) .NET Framework
6 4 (4.30%) Entity Framework
6 4 (4.30%) Gherkin
6 4 (4.30%) Spring
6 4 (4.30%) Web Services
7 3 (3.23%) Android SDK
7 3 (3.23%) React
8 2 (2.15%) Natural Language Processing
8 2 (2.15%) NumPy
8 2 (2.15%) Pandas
8 2 (2.15%) REST
8 2 (2.15%) Vue.js
9 1 (1.08%) OpenID
9 1 (1.08%) V-Ray
Miscellaneous
1 10 (10.75%) Algorithms
2 7 (7.53%) Linux Command Line
3 6 (6.45%) Mobile App
3 6 (6.45%) Smart City
4 4 (4.30%) Analytical Skills
4 4 (4.30%) Handset
5 3 (3.23%) User Experience
6 2 (2.15%) Data Centre
6 2 (2.15%) Management Information System
7 1 (1.08%) Client/Server
7 1 (1.08%) e-Learning
7 1 (1.08%) Embedded Systems
7 1 (1.08%) Enterprise Software
7 1 (1.08%) Greenfield Project
7 1 (1.08%) Online Games
Operating Systems
1 23 (24.73%) Linux
2 9 (9.68%) Unix
3 8 (8.60%) Windows
4 7 (7.53%) Windows Server
5 5 (5.38%) Android
5 5 (5.38%) Windows Server 2016
6 3 (3.23%) Windows 10
7 2 (2.15%) Windows Server 2012
8 1 (1.08%) Apple iOS
8 1 (1.08%) Debian
8 1 (1.08%) Red Hat Enterprise Linux
8 1 (1.08%) Ubuntu
Processes & Methodologies
1 29 (31.18%) Software Engineering
2 20 (21.51%) Agile Software Development
3 17 (18.28%) DevOps
3 17 (18.28%) Test Automation
4 16 (17.20%) Continuous Integration
5 14 (15.05%) Machine Learning
6 9 (9.68%) Open Source
6 9 (9.68%) Problem-Solving
7 8 (8.60%) Mathematics
7 8 (8.60%) Migration
8 7 (7.53%) Fintech
8 7 (7.53%) Scrum
8 7 (7.53%) Web Development
9 6 (6.45%) Computer Science
9 6 (6.45%) Computer Vision
9 6 (6.45%) Cryptography
9 6 (6.45%) Multithreading
9 6 (6.45%) SDET
9 6 (6.45%) Stakeholder Management
9 6 (6.45%) Unit Testing
Programming Languages
1 40 (43.01%) C++
2 24 (25.81%) Java
3 22 (23.66%) Python
4 21 (22.58%) JavaScript
5 12 (12.90%) TypeScript
6 11 (11.83%) PHP
6 11 (11.83%) SQL
7 6 (6.45%) C#
8 4 (4.30%) Kotlin
8 4 (4.30%) VBScript
9 3 (3.23%) Go
9 3 (3.23%) VB
10 2 (2.15%) Embedded C
10 2 (2.15%) Embedded C++
10 2 (2.15%) Objective-C
10 2 (2.15%) PowerShell
10 2 (2.15%) Scala
11 1 (1.08%) F#
11 1 (1.08%) Haskell
11 1 (1.08%) Ruby
Qualifications
1 7 (7.53%) Degree
2 5 (5.38%) MCSA
2 5 (5.38%) Microsoft Certification
3 4 (4.30%) SC Cleared
3 4 (4.30%) Security Cleared
4 2 (2.15%) MCSE
5 1 (1.08%) Chartered Engineer
5 1 (1.08%) Computer Science Degree
5 1 (1.08%) PMI Certification
5 1 (1.08%) PMP
Quality Assurance & Compliance
1 9 (9.68%) QA
System Software
1 8 (8.60%) Active Directory
2 3 (3.23%) Docker
3 2 (2.15%) Firmware
3 2 (2.15%) Hyper-V
4 1 (1.08%) OpenAM
Systems Management
1 4 (4.30%) HP Quality Center
2 3 (3.23%) Microsoft Intune
3 2 (2.15%) Ansible
3 2 (2.15%) MaaS360
3 2 (2.15%) McAfee ePO
3 2 (2.15%) Terraform
4 1 (1.08%) BladeLogic
4 1 (1.08%) Kubernetes
4 1 (1.08%) Single Sign-On
Vendors
1 12 (12.90%) Microsoft
2 10 (10.75%) Workday
3 5 (5.38%) Oracle
4 4 (4.30%) Cisco
4 4 (4.30%) HP
4 4 (4.30%) YouTube
5 2 (2.15%) Bloomberg
5 2 (2.15%) Citrix
5 2 (2.15%) Darktrace
5 2 (2.15%) F5
5 2 (2.15%) McAfee
5 2 (2.15%) Sophos
5 2 (2.15%) WatchGuard
6 1 (1.08%) Adobe
6 1 (1.08%) OpenLink
6 1 (1.08%) Red Hat
6 1 (1.08%) Riverbed
6 1 (1.08%) Sage
6 1 (1.08%) Tableau
6 1 (1.08%) Tandberg