Period
to 17 January 2022

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for C skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited C over the 6 months to 17 January 2022 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

C
Central London > City of London
6 months to
17 Jan 2022
Same period 2021 Same period 2020
Rank 124 101 160
Rank change year-on-year -23 +59 +19
Contract jobs citing C 52 25 45
As % of all contract jobs advertised in the City of London 1.31% 1.24% 0.91%
As % of the Programming Languages category 2.71% 2.48% 1.88%
Number of daily rates quoted 47 19 31
10th Percentile £346 £210 £388
25th Percentile £350 £438 £450
Median daily rate (50th Percentile) £500 £525 £513
Median % change year-on-year -4.76% +2.44% +2.50%
75th Percentile £613 £603 £586
90th Percentile £675 £700 £700
Central London median daily rate £519 £525 £500
% change year-on-year -1.19% +5.00% -
Number of hourly rates quoted 0 1 1
Median hourly rate - £14.00 £63.33
Median % change year-on-year - -77.89% -
Central London median hourly rate - £14.00 £63.33
% change year-on-year - -77.89% +238.66%

C is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for coding skills.

All Programming Languages
City of London
Contract vacancies with a requirement for coding skills 1,922 1,007 2,400
As % of all contract IT jobs advertised in the City of London 48.56% 49.85% 48.29%
Number of daily rates quoted 1,513 780 1,942
10th Percentile £413 £356 £388
25th Percentile £500 £429 £450
Median daily rate (50th Percentile) £575 £550 £525
Median % change year-on-year +4.55% +4.76% -
75th Percentile £688 £638 £623
90th Percentile £775 £700 £688
Central London median daily rate £575 £545 £525
% change year-on-year +5.50% +3.81% -
Number of hourly rates quoted 9 5 13
10th Percentile £45.05 " £21.00
25th Percentile £50.25 £12.75 £21.17
Median hourly rate £60.50 £14.00 £47.50
Median % change year-on-year +332.14% -70.53% +28.07%
75th Percentile £67.75 £22.00 £52.25
90th Percentile £77.75 £31.15 £55.00
Central London median hourly rate £60.50 £18.00 £36.25
% change year-on-year +236.11% -50.34% -2.26%

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
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for C in the City of London

C
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing C in the City of London over the 6 months to 17 January 2022.

Daily rate histogram for C in the City of London

C
Contractor Hourly Rate Trend in the City of London

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

Hourly rate trend for C in the City of London

For the 6 months to 17 January 2022, IT contractor 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 contract job ads across the City of London region with a requirement for C.

1 25 (48.08%) SQL
2 20 (38.46%) Python
3 19 (36.54%) Finance
4 17 (32.69%) Oracle
5 16 (30.77%) Java
6 15 (28.85%) C++
7 14 (26.92%) Microsoft Excel
7 14 (26.92%) Windows
7 14 (26.92%) Data Analysis
8 13 (25.00%) T-SQL
8 13 (25.00%) .NET
9 12 (23.08%) C#
10 11 (21.15%) Banking
10 11 (21.15%) .NET Framework
10 11 (21.15%) SQL Server
10 11 (21.15%) VB
10 11 (21.15%) OO
10 11 (21.15%) Oracle Database
11 10 (19.23%) Analytical Skills
11 10 (19.23%) WPF
11 10 (19.23%) OOP
11 10 (19.23%) VB.NET
11 10 (19.23%) VBA
11 10 (19.23%) PL/SQL
11 10 (19.23%) Degree
12 9 (17.31%) Agile Software Development
12 9 (17.31%) AWS
12 9 (17.31%) Data Engineering
13 8 (15.38%) Analytics
14 7 (13.46%) Relational Database

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 4 (7.69%) Apache Spark
2 3 (5.77%) OpenStack
2 3 (5.77%) SAS
3 2 (3.85%) Confluence
4 1 (1.92%) MS Exchange
4 1 (1.92%) SharePoint
Applications
1 14 (26.92%) Microsoft Excel
2 1 (1.92%) Microsoft Office
Business Applications
1 1 (1.92%) Infor M3
Cloud Services
1 9 (17.31%) AWS
2 5 (9.62%) Azure
2 5 (9.62%) GCP
3 4 (7.69%) Power Platform
3 4 (7.69%) Serverless
4 3 (5.77%) AWS CloudFormation
5 1 (1.92%) Azure Event Grid
5 1 (1.92%) Azure Functions
5 1 (1.92%) GitHub
5 1 (1.92%) Microsoft 365
Communications & Networking
1 2 (3.85%) FCoE
1 2 (3.85%) Fibre Channel
1 2 (3.85%) iSCSI
2 1 (1.92%) Broadband
2 1 (1.92%) DECT
2 1 (1.92%) Ethernet
2 1 (1.92%) Firewall
2 1 (1.92%) IPv4
2 1 (1.92%) IPv6
2 1 (1.92%) Modbus
2 1 (1.92%) Multicast
2 1 (1.92%) PPP
2 1 (1.92%) Unified Communications
2 1 (1.92%) UPnP
2 1 (1.92%) Wi-Fi
Database & Business Intelligence
1 11 (21.15%) Oracle Database
1 11 (21.15%) SQL Server
2 7 (13.46%) PostgreSQL
2 7 (13.46%) Relational Database
3 5 (9.62%) RDBMS
4 4 (7.69%) Apache Cassandra
4 4 (7.69%) Big Data
4 4 (7.69%) Hadoop
4 4 (7.69%) Power BI
4 4 (7.69%) Tableau
5 2 (3.85%) NoSQL
6 1 (1.92%) Data Mart
6 1 (1.92%) Data Warehouse
6 1 (1.92%) MySQL
Development Applications
1 5 (9.62%) Git (software)
1 5 (9.62%) JIRA
2 3 (5.77%) Jenkins
3 2 (3.85%) GDB
3 2 (3.85%) GitLab
4 1 (1.92%) Atlassian Bamboo
4 1 (1.92%) Bitbucket
4 1 (1.92%) CMake
4 1 (1.92%) Cypress.io
4 1 (1.92%) JMeter
4 1 (1.92%) Maven
4 1 (1.92%) Storybook
4 1 (1.92%) Subversion
4 1 (1.92%) Team Foundation Server
4 1 (1.92%) TeamCity
4 1 (1.92%) Visual Studio
4 1 (1.92%) webpack
General
1 19 (36.54%) Finance
2 11 (21.15%) Banking
3 10 (19.23%) Analytical Skills
4 7 (13.46%) Legal
4 7 (13.46%) Social Skills
5 3 (5.77%) Financial Institution
5 3 (5.77%) Public Sector
6 1 (1.92%) Advertising
6 1 (1.92%) Front Office
6 1 (1.92%) Investment Banking
6 1 (1.92%) Law
6 1 (1.92%) Manufacturing
Job Titles
1 24 (46.15%) Developer
2 12 (23.08%) C# Developer
3 6 (11.54%) Analyst
3 6 (11.54%) Python Developer
3 6 (11.54%) Python Engineer
4 5 (9.62%) Architect
4 5 (9.62%) Java Developer
5 4 (7.69%) Data Scientist
5 4 (7.69%) Java Engineer
5 4 (7.69%) Senior Data Scientist
6 3 (5.77%) Cloud Architect
6 3 (5.77%) Insurance Systems Analyst
6 3 (5.77%) SAS Analyst
6 3 (5.77%) Security Architect
6 3 (5.77%) Software Analyst
6 3 (5.77%) Systems Analyst
7 2 (3.85%) Agile Product Owner
7 2 (3.85%) Cisco Engineer
7 2 (3.85%) NOC Engineer
7 2 (3.85%) Storage Engineer
Libraries, Frameworks & Software Standards
1 13 (25.00%) .NET
2 11 (21.15%) .NET Framework
3 10 (19.23%) WPF
4 5 (9.62%) Kafka
5 4 (7.69%) Spring Boot
6 3 (5.77%) React
7 2 (3.85%) ASP.NET
7 2 (3.85%) CSS
7 2 (3.85%) jQuery
7 2 (3.85%) Twitter Bootstrap
7 2 (3.85%) XML
8 1 (1.92%) ADO.NET
8 1 (1.92%) Ajax
8 1 (1.92%) ASP.NET MVC
8 1 (1.92%) Entity Framework
8 1 (1.92%) HTML
8 1 (1.92%) JSON
8 1 (1.92%) Murex MxML
8 1 (1.92%) Node.js
8 1 (1.92%) XSLT
Miscellaneous
1 5 (9.62%) Legacy Systems
2 4 (7.69%) Algorithms
2 4 (7.69%) Reinsurance
3 3 (5.77%) Data Centre
3 3 (5.77%) Enterprise Cloud
3 3 (5.77%) Hedge funds
4 2 (3.85%) Embedded Systems
5 1 (1.92%) Cloud Native
5 1 (1.92%) Enterprise Software
5 1 (1.92%) Fat Client
5 1 (1.92%) Foreign Exchange (FX)
5 1 (1.92%) SCADA
5 1 (1.92%) Self-Motivation
5 1 (1.92%) Thin Client
5 1 (1.92%) User Experience
Operating Systems
1 14 (26.92%) Windows
2 4 (7.69%) Linux
3 3 (5.77%) Windows Server
4 2 (3.85%) OpenWrt
5 1 (1.92%) Unix
5 1 (1.92%) VMS
5 1 (1.92%) Windows 7
5 1 (1.92%) Windows Server 2008
Processes & Methodologies
1 14 (26.92%) Data Analysis
2 11 (21.15%) OO
3 10 (19.23%) OOP
4 9 (17.31%) Agile Software Development
4 9 (17.31%) Data Engineering
5 8 (15.38%) Analytics
6 7 (13.46%) Business Intelligence
6 7 (13.46%) Problem-Solving
6 7 (13.46%) TDD
7 6 (11.54%) Actionable Insight
7 6 (11.54%) DevOps
8 5 (9.62%) Architectural Design
8 5 (9.62%) BDD
8 5 (9.62%) Computer Science
8 5 (9.62%) Data Modelling
8 5 (9.62%) Decision-Making
8 5 (9.62%) Mathematics
8 5 (9.62%) Microservices
8 5 (9.62%) Service Delivery
8 5 (9.62%) Supply Chain Transformation
Programming Languages
1 25 (48.08%) SQL
2 20 (38.46%) Python
3 16 (30.77%) Java
4 15 (28.85%) C++
5 13 (25.00%) T-SQL
6 12 (23.08%) C#
7 11 (21.15%) VB
8 10 (19.23%) PL/SQL
8 10 (19.23%) VB.NET
8 10 (19.23%) VBA
9 6 (11.54%) JavaScript
10 4 (7.69%) Shell Script
11 3 (5.77%) PowerShell
11 3 (5.77%) R
11 3 (5.77%) TypeScript
12 2 (3.85%) Bash
13 1 (1.92%) Go
13 1 (1.92%) Ladder Logic
13 1 (1.92%) Perl
13 1 (1.92%) Ruby
Qualifications
1 10 (19.23%) Degree
2 5 (9.62%) Security Cleared
3 4 (7.69%) SC Cleared
4 3 (5.77%) CISSP
5 2 (3.85%) CCNP
5 2 (3.85%) Cisco Certification
6 1 (1.92%) Computer Science Degree
6 1 (1.92%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 6 (11.54%) QA
2 3 (5.77%) GDPR
3 2 (3.85%) SLA
4 1 (1.92%) JTAG
4 1 (1.92%) PMBOK
System Software
1 4 (7.69%) Docker
2 2 (3.85%) VMware Infrastructure
3 1 (1.92%) Active Directory
3 1 (1.92%) Firmware
3 1 (1.92%) Terminal Server
3 1 (1.92%) Virtual Machines
3 1 (1.92%) VMware NSX
3 1 (1.92%) vSphere
Systems Management
1 4 (7.69%) Kubernetes
1 4 (7.69%) Terraform
2 2 (3.85%) Cisco CUCM
3 1 (1.92%) vCenter Server
3 1 (1.92%) VxRail
Vendors
1 17 (32.69%) Oracle
2 5 (9.62%) Cisco
3 3 (5.77%) Microsoft
3 3 (5.77%) VMware
4 2 (3.85%) Google
5 1 (1.92%) Murex
5 1 (1.92%) NVIDIA
5 1 (1.92%) Red Hat
5 1 (1.92%) Rockwell
5 1 (1.92%) Siemens
5 1 (1.92%) Sybase
5 1 (1.92%) Turbonomic
5 1 (1.92%) Veritas