Period
to 7 March 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 7 March 2021 with a comparison to the same period in the previous 2 years.

C
Central London > City of London
6 months to
7 Mar 2021
Same period 2020 Same period 2019
Rank 173 143 174
Rank change year-on-year -30 +31 -7
Permanent jobs citing C 51 162 181
As % of all permanent jobs advertised in the City of London 1.09% 1.82% 1.76%
As % of the Programming Languages category 1.69% 3.28% 2.81%
Number of salaries quoted 47 151 164
Median annual salary £65,000 £67,000 £72,500
Median salary % change year-on-year -2.99% -7.59% +3.57%
10th Percentile £41,250 £50,000 £37,500
90th Percentile £101,250 £130,000 £105,000
Central London median annual salary £67,500 £70,000 £65,000
% change year-on-year -3.57% +7.69% -3.70%

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 3,020 4,944 6,451
As % of all permanent IT jobs advertised in the City of London 64.74% 55.64% 62.56%
Number of salaries quoted 2,768 4,404 5,862
Median annual salary £72,500 £70,000 £65,000
Median salary % change year-on-year +3.57% +7.69% +4.00%
10th Percentile £45,000 £43,750 £40,000
90th Percentile £106,250 £105,000 £96,250
Central London median annual salary £72,500 £70,000 £65,000
% change year-on-year +3.57% +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 7 March 2021.

Salary histogram for C in the City of London

For the 6 months to 7 March 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 18 (35.29%) Python
2 17 (33.33%) Agile Software Development
3 16 (31.37%) SQL
4 15 (29.41%) Computer Science
5 14 (27.45%) Software Engineering
6 13 (25.49%) Degree
6 13 (25.49%) Test Automation
6 13 (25.49%) Finance
6 13 (25.49%) C++
7 11 (21.57%) Java
8 10 (19.61%) TDD
9 9 (17.65%) QA
9 9 (17.65%) JavaScript
9 9 (17.65%) Linux
9 9 (17.65%) Stakeholder Management
9 9 (17.65%) DevOps
10 8 (15.69%) Computer Science Degree
10 8 (15.69%) Law
11 7 (13.73%) Legal
11 7 (13.73%) Regression Testing
11 7 (13.73%) Selenium
11 7 (13.73%) Azure
11 7 (13.73%) Test Scripting
11 7 (13.73%) SQL Server Integration Services
11 7 (13.73%) React
11 7 (13.73%) Test Planning
11 7 (13.73%) Ranorex
11 7 (13.73%) Mobile App
12 6 (11.76%) REST
12 6 (11.76%) BDD

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:

Applications
1 1 (1.96%) Figma
1 1 (1.96%) Microsoft Excel
1 1 (1.96%) Microsoft Office
1 1 (1.96%) Microsoft PowerPoint
Cloud Services
1 7 (13.73%) Azure
2 5 (9.80%) AWS
3 2 (3.92%) GCP
3 2 (3.92%) PaaS
3 2 (3.92%) Power Platform
3 2 (3.92%) SaaS
4 1 (1.96%) Firebase
4 1 (1.96%) GitHub
4 1 (1.96%) Google Analytics
4 1 (1.96%) Heroku
Communications & Networking
1 2 (3.92%) 2G
1 2 (3.92%) 3G
1 2 (3.92%) 4G
1 2 (3.92%) 5G
1 2 (3.92%) LTE
1 2 (3.92%) MIMO
1 2 (3.92%) VoLTE
1 2 (3.92%) Wireless
Database & Business Intelligence
1 7 (13.73%) SQL Server Integration Services
2 5 (9.80%) PostgreSQL
3 2 (3.92%) Power BI
4 1 (1.96%) Blockchain
4 1 (1.96%) Tableau
Development Applications
1 7 (13.73%) Ranorex
1 7 (13.73%) Selenium
2 4 (7.84%) Jenkins
3 2 (3.92%) GitLab
3 2 (3.92%) Mocha
3 2 (3.92%) Visual Studio
3 2 (3.92%) webpack
4 1 (1.96%) Crashlytics
General
1 13 (25.49%) Finance
2 8 (15.69%) Law
3 7 (13.73%) Legal
4 3 (5.88%) Advertising
4 3 (5.88%) Electronics
4 3 (5.88%) Retail
5 2 (3.92%) Games
5 2 (3.92%) Marketing
6 1 (1.96%) Banking
6 1 (1.96%) Public Sector
Job Titles
1 15 (29.41%) Developer
2 8 (15.69%) Analyst
2 8 (15.69%) Full Stack Developer
3 7 (13.73%) Python Developer
4 6 (11.76%) QA Analyst
4 6 (11.76%) Technical Analyst
5 5 (9.80%) Software Engineer
6 4 (7.84%) Django Developer
6 4 (7.84%) Full Stack Web Developer
6 4 (7.84%) JavaScript Developer
6 4 (7.84%) Python Web Developer
6 4 (7.84%) Python/Django Developer
6 4 (7.84%) Web Developer
7 3 (5.88%) Applications Engineer
7 3 (5.88%) Embedded Engineer
7 3 (5.88%) Embedded Software Engineer
8 2 (3.92%) C++ Developer
8 2 (3.92%) Senior QA Analyst
8 2 (3.92%) Senior Technical Analyst
8 2 (3.92%) Technical Manager
Libraries, Frameworks & Software Standards
1 7 (13.73%) React
2 6 (11.76%) REST
3 5 (9.80%) .NET
3 5 (9.80%) Web Services
4 4 (7.84%) Django
4 4 (7.84%) Flask
4 4 (7.84%) Pandas
5 3 (5.88%) .NET Framework
5 3 (5.88%) Core Data
5 3 (5.88%) Reactive Extensions
5 3 (5.88%) RxCocoa
5 3 (5.88%) RxSwift
5 3 (5.88%) UIKit
6 2 (3.92%) CSS
6 2 (3.92%) Enzyme
6 2 (3.92%) HTML
6 2 (3.92%) Jest
6 2 (3.92%) Redux
6 2 (3.92%) Ruby on Rails
6 2 (3.92%) Vue.js
Miscellaneous
1 7 (13.73%) Mobile App
2 5 (9.80%) Algorithms
2 5 (9.80%) Data Structures
3 2 (3.92%) e-Learning
3 2 (3.92%) Private Cloud
3 2 (3.92%) Smartphone
3 2 (3.92%) Virtual Team
4 1 (1.96%) Embedded Systems
4 1 (1.96%) Foreign Exchange (FX)
4 1 (1.96%) Linked Data
4 1 (1.96%) Management Information System
4 1 (1.96%) User Experience
Operating Systems
1 9 (17.65%) Linux
2 5 (9.80%) Android
3 3 (5.88%) Apple iOS
4 2 (3.92%) Windows
Processes & Methodologies
1 17 (33.33%) Agile Software Development
2 15 (29.41%) Computer Science
3 14 (27.45%) Software Engineering
4 13 (25.49%) Test Automation
5 10 (19.61%) TDD
6 9 (17.65%) DevOps
6 9 (17.65%) Stakeholder Management
7 7 (13.73%) Regression Testing
7 7 (13.73%) Test Planning
7 7 (13.73%) Test Scripting
8 6 (11.76%) BDD
8 6 (11.76%) Continuous Integration
9 5 (9.80%) Business Development
9 5 (9.80%) Open Source
10 4 (7.84%) Algorithmic Trading
10 4 (7.84%) E-Commerce
10 4 (7.84%) Machine Learning
10 4 (7.84%) Pair Programming
10 4 (7.84%) Scrum
10 4 (7.84%) Web Development
Programming Languages
1 18 (35.29%) Python
2 16 (31.37%) SQL
3 13 (25.49%) C++
4 11 (21.57%) Java
5 9 (17.65%) JavaScript
6 4 (7.84%) C#
6 4 (7.84%) Go
6 4 (7.84%) Ruby
7 3 (5.88%) Apple Swift
8 2 (3.92%) Bash Shell
8 2 (3.92%) PHP
8 2 (3.92%) Rust
9 1 (1.96%) Objective-C
Qualifications
1 13 (25.49%) Degree
2 8 (15.69%) Computer Science Degree
3 2 (3.92%) CISM
3 2 (3.92%) CISSP
3 2 (3.92%) CSSLP
3 2 (3.92%) SC Cleared
3 2 (3.92%) Security Cleared
4 1 (1.96%) Numerate Degree
Quality Assurance & Compliance
1 9 (17.65%) QA
2 2 (3.92%) NIST
3 1 (1.96%) Data Quality
System Software
1 2 (3.92%) Docker
Systems Management
1 4 (7.84%) Puppet
2 3 (5.88%) Terraform
3 2 (3.92%) Ansible
4 1 (1.96%) Kubernetes
Vendors
1 3 (5.88%) Broadcom
2 2 (3.92%) Microsoft
2 2 (3.92%) Oracle
3 1 (1.96%) EMC
3 1 (1.96%) Google
3 1 (1.96%) Retek
3 1 (1.96%) ServiceNow
3 1 (1.96%) Workday