Period
to 23 October 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 23 October 2020 with a comparison to the same period in the previous 2 years.

C
Central London > City of London
6 months to
23 Oct 2020
Same period 2019 Same period 2018
Rank 169 175 202
Rank change year-on-year +6 +27 -15
Permanent jobs citing C 27 163 173
As % of all permanent jobs advertised in the City of London 0.74% 1.63% 1.55%
As % of the Programming Languages category 1.20% 2.73% 2.51%
Number of salaries quoted 28 131 159
Median annual salary £65,000 £67,500 £60,000
Median salary % change year-on-year -3.70% +12.50% -14.29%
10th Percentile £42,750 £46,250 £40,000
90th Percentile £118,750 £115,000 £94,000
Central London median annual salary £62,500 £67,500 £65,000
% change year-on-year -7.41% +3.85% -5.45%

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 2,248 5,980 6,905
As % of all permanent IT jobs advertised in the City of London 61.89% 59.90% 62.05%
Number of salaries quoted 2,019 5,242 6,303
Median annual salary £70,000 £70,000 £65,000
Median salary % change year-on-year - +7.69% +8.33%
10th Percentile £45,000 £42,500 £40,300
90th Percentile £105,000 £97,500 £95,000
Central London median annual salary £70,000 £67,500 £65,000
% change year-on-year +3.70% +3.85% +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 23 October 2020.

Salary histogram for C in the City of London

For the 6 months to 23 October 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 10 (37.04%) Finance
2 9 (33.33%) Java
2 9 (33.33%) Python
3 8 (29.63%) C++
4 7 (25.93%) Degree
4 7 (25.93%) DevOps
5 6 (22.22%) .NET
5 6 (22.22%) Linux
5 6 (22.22%) Agile Software Development
6 5 (18.52%) Wireless
6 5 (18.52%) Microsoft
6 5 (18.52%) Azure
6 5 (18.52%) Open Source
6 5 (18.52%) Cybersecurity
7 4 (14.81%) .NET Framework
7 4 (14.81%) Mobile App
7 4 (14.81%) Social Engineering
7 4 (14.81%) API Testing
7 4 (14.81%) Threat Analysis
7 4 (14.81%) Fintech
7 4 (14.81%) NIST
7 4 (14.81%) Red Team
7 4 (14.81%) CSSLP
7 4 (14.81%) Penetration Testing
7 4 (14.81%) Software Engineering
7 4 (14.81%) QA
7 4 (14.81%) OWASP
7 4 (14.81%) CISSP
7 4 (14.81%) Windows
7 4 (14.81%) CISM

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 (7.41%) MS Exchange
1 2 (7.41%) Skype for Business
Applications
1 1 (3.70%) 3ds Max
1 1 (3.70%) Acrobat
1 1 (3.70%) Adobe Illustrator
1 1 (3.70%) Adobe Premiere
1 1 (3.70%) InDesign
1 1 (3.70%) LightWave 3D
1 1 (3.70%) Microsoft Office
1 1 (3.70%) MODO
1 1 (3.70%) Photoshop
1 1 (3.70%) Revit
1 1 (3.70%) SketchUp
Cloud Services
1 5 (18.52%) Azure
2 3 (11.11%) Office 365
3 2 (7.41%) AWS
4 1 (3.70%) Amazon S3
4 1 (3.70%) G Suite
4 1 (3.70%) OneDrive
4 1 (3.70%) PaaS
4 1 (3.70%) Power Platform
4 1 (3.70%) Serverless
Communications & Networking
1 5 (18.52%) Wireless
2 2 (7.41%) Firewall
2 2 (7.41%) Network Security
2 2 (7.41%) Skype
3 1 (3.70%) BGP
3 1 (3.70%) Cisco Nexus
3 1 (3.70%) Cisco Wireless
3 1 (3.70%) F5 BIG-IP GTM
3 1 (3.70%) F5 BIG-IP LTM
3 1 (3.70%) Multicast
3 1 (3.70%) OSPF
3 1 (3.70%) RS-232
3 1 (3.70%) RS-485
3 1 (3.70%) TCP/IP
3 1 (3.70%) VoIP
3 1 (3.70%) VXLAN
3 1 (3.70%) Wireshark
Database & Business Intelligence
1 1 (3.70%) Amazon Redshift
1 1 (3.70%) Apache Cassandra
1 1 (3.70%) Apache Hive
1 1 (3.70%) Big Data
1 1 (3.70%) Hadoop
1 1 (3.70%) HBase
1 1 (3.70%) KDB
1 1 (3.70%) Kdb+
1 1 (3.70%) PostgreSQL
1 1 (3.70%) Power BI
1 1 (3.70%) RDBMS
1 1 (3.70%) Relational Database
1 1 (3.70%) Tableau
1 1 (3.70%) Tick Data
Development Applications
1 3 (11.11%) Git (software)
2 1 (3.70%) GitLab
2 1 (3.70%) Jenkins
2 1 (3.70%) JIRA
General
1 10 (37.04%) Finance
2 2 (7.41%) Banking
2 2 (7.41%) Electronics
2 2 (7.41%) Financial Institution
2 2 (7.41%) Law
3 1 (3.70%) Front Office
3 1 (3.70%) Games
3 1 (3.70%) Retail
Job Titles
1 3 (11.11%) Developer
1 3 (11.11%) Testing Manager
2 2 (7.41%) Development Manager
2 2 (7.41%) Head of Development
2 2 (7.41%) Head of Software Development
2 2 (7.41%) IT Manager
2 2 (7.41%) Software Development Manager
2 2 (7.41%) Software Manager
3 1 (3.70%) Analyst
3 1 (3.70%) Architect
3 1 (3.70%) Business Analyst
3 1 (3.70%) Consultant
3 1 (3.70%) Electronics Engineer
3 1 (3.70%) Principal Software Engineer
3 1 (3.70%) QA Tester
3 1 (3.70%) Security Engineer
3 1 (3.70%) Senior Developer
3 1 (3.70%) Support Specialist
3 1 (3.70%) Technical Architect
3 1 (3.70%) Tester
Libraries, Frameworks & Software Standards
1 6 (22.22%) .NET
2 4 (14.81%) .NET Framework
3 2 (7.41%) Node.js
3 2 (7.41%) React
4 1 (3.70%) Corona SDK
4 1 (3.70%) JSON
4 1 (3.70%) Natural Language Processing
4 1 (3.70%) Redux
4 1 (3.70%) Unreal Engine
4 1 (3.70%) Velocity
4 1 (3.70%) V-Ray
4 1 (3.70%) XML
Miscellaneous
1 4 (14.81%) Mobile App
2 2 (7.41%) Management Information System
3 1 (3.70%) Algorithms
3 1 (3.70%) Analytical Skills
3 1 (3.70%) Client/Server
3 1 (3.70%) Data Centre
3 1 (3.70%) Embedded Systems
3 1 (3.70%) Foreign Exchange (FX)
3 1 (3.70%) Reference Data
Operating Systems
1 6 (22.22%) Linux
2 4 (14.81%) Windows
3 2 (7.41%) Android
3 2 (7.41%) Windows Server
3 2 (7.41%) Windows Server 2016
4 1 (3.70%) Unix
4 1 (3.70%) Windows 10
Processes & Methodologies
1 7 (25.93%) DevOps
2 6 (22.22%) Agile Software Development
3 5 (18.52%) Cybersecurity
3 5 (18.52%) Open Source
4 4 (14.81%) API Testing
4 4 (14.81%) Fintech
4 4 (14.81%) Information Security
4 4 (14.81%) OWASP
4 4 (14.81%) Penetration Testing
4 4 (14.81%) Red Team
4 4 (14.81%) Social Engineering
4 4 (14.81%) Software Engineering
4 4 (14.81%) Threat Analysis
5 3 (11.11%) Data Science
5 3 (11.11%) Problem-Solving
5 3 (11.11%) Stakeholder Management
6 2 (7.41%) Analytics
6 2 (7.41%) Continuous Improvement
6 2 (7.41%) Infrastructure Engineering
6 2 (7.41%) Machine Learning
Programming Languages
1 9 (33.33%) Java
1 9 (33.33%) Python
2 8 (29.63%) C++
3 3 (11.11%) Embedded C
3 3 (11.11%) Go
3 3 (11.11%) JavaScript
4 2 (7.41%) Embedded C++
4 2 (7.41%) Scala
5 1 (3.70%) PowerShell
5 1 (3.70%) Ruby
5 1 (3.70%) Shell Script
5 1 (3.70%) SQL
Qualifications
1 7 (25.93%) Degree
2 4 (14.81%) CISM
2 4 (14.81%) CISSP
2 4 (14.81%) CSSLP
Quality Assurance & Compliance
1 4 (14.81%) NIST
1 4 (14.81%) QA
System Software
1 3 (11.11%) Active Directory
2 1 (3.70%) Docker
2 1 (3.70%) Firmware
Systems Management
1 3 (11.11%) Kubernetes
2 2 (7.41%) MaaS360
2 2 (7.41%) Terraform
Vendors
1 5 (18.52%) Microsoft
2 3 (11.11%) Cisco
3 2 (7.41%) Bloomberg
3 2 (7.41%) Citrix
3 2 (7.41%) Darktrace
4 1 (3.70%) Adobe
4 1 (3.70%) Alteryx
4 1 (3.70%) Arista
4 1 (3.70%) EMC
4 1 (3.70%) F5
4 1 (3.70%) Oracle
4 1 (3.70%) Perforce
4 1 (3.70%) Retek
4 1 (3.70%) Riverbed
4 1 (3.70%) Sage