Period
to 23 September 2019

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 23 September 2019 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
23 Sep 2019
Same period 2018 Same period 2017
Rank 177 160 165
Rank change year-on-year -17 +5 -3
Contract jobs citing C 54 97 78
As % of all contract IT jobs advertised in the City of London 0.87% 1.41% 1.16%
As % of the Programming Languages category 1.77% 2.63% 2.25%
Number of daily rates quoted 37 83 60
City of London median daily rate £550 £500 £525
Median daily rate % change year-on-year +10.00% -4.76% +5.00%
10th Percentile £420 £413 £354
90th Percentile £776 £775 £702
Central London median daily rate £550 £500 £525
% change year-on-year +10.00% -4.76% +10.53%
Number of hourly rates quoted 1 1 0
City of London median hourly rate £11.00 £18.70 -
Median hourly rate % change year-on-year -41.18% - -
Central London median hourly rate £11.00 £18.70 £42.50
% change year-on-year -41.18% -56.00% +63.46%

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 3,051 3,684 3,464
As % of all contract IT jobs advertised in the City of London 49.11% 53.62% 51.42%
Number of daily rates quoted 2,485 3,081 2,803
City of London median daily rate £525 £525 £513
Median daily rate % change year-on-year - +2.44% +7.89%
10th Percentile £400 £375 £363
90th Percentile £675 £688 £675
Central London median daily rate £525 £525 £500
% change year-on-year - +5.00% +8.70%
Number of hourly rates quoted 17 14 9
City of London median hourly rate £22.33 £22.00 £21.50
Median hourly rate % change year-on-year +1.50% +2.33% -21.82%
10th Percentile £21.00 £12.50 £12.74
90th Percentile £57.60 £54.88 £32.30
Central London median hourly rate £22.33 £22.00 £21.50
% change year-on-year +1.50% +2.33% -21.82%

C
Job Vacancy Trend in the City of London

Job postings citing C as a percentage 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

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing C in the City of London.

Contractor daily rate trend for C in the City of London

C
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing C in the City of London over the 6 months to 23 September 2019.

Contractor daily rate histogram for C in the City of London

C
Contractor Hourly Rate Trend in the City of London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing C in the City of London.

Contractor hourly rate trend for C in the City of London

For the 6 months to 23 September 2019, 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 14 (25.93%) Microsoft
2 11 (20.37%) SQL
2 11 (20.37%) C++
2 11 (20.37%) Python
3 10 (18.52%) Java
4 9 (16.67%) Finance
5 8 (14.81%) .NET
5 8 (14.81%) Windows
5 8 (14.81%) Agile Software Development
5 8 (14.81%) Azure
6 7 (12.96%) Degree
7 6 (11.11%) Project Management
7 6 (11.11%) Migration
7 6 (11.11%) TDD
7 6 (11.11%) Analytics
7 6 (11.11%) User Stories
7 6 (11.11%) Data Science
8 5 (9.26%) Strategic Thinking
8 5 (9.26%) Deep Learning
8 5 (9.26%) Algorithms
8 5 (9.26%) Artificial Intelligence
8 5 (9.26%) Mathematics
8 5 (9.26%) R
8 5 (9.26%) Machine Learning
8 5 (9.26%) Office 365
8 5 (9.26%) Data Analytics
8 5 (9.26%) Stakeholder Management
8 5 (9.26%) Firewall
8 5 (9.26%) Microsoft Excel
9 4 (7.41%) Microsoft Project

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 (3.70%) Confluence
2 1 (1.85%) Apache Spark
2 1 (1.85%) Elasticsearch
2 1 (1.85%) IIS
2 1 (1.85%) JBoss
2 1 (1.85%) Jetty
2 1 (1.85%) Oracle Self-Service HR
2 1 (1.85%) SAS
2 1 (1.85%) SharePoint
2 1 (1.85%) Skype for Business
2 1 (1.85%) Tomcat
2 1 (1.85%) WebLogic
Applications
1 5 (9.26%) Microsoft Excel
2 4 (7.41%) Microsoft Project
3 3 (5.56%) Microsoft PowerPoint
4 1 (1.85%) Microsoft Office
Business Applications
1 2 (3.70%) Dynamics NAV
2 1 (1.85%) ION MarketView
2 1 (1.85%) Payment Gateway
Cloud Services
1 8 (14.81%) Azure
2 5 (9.26%) Office 365
3 3 (5.56%) SaaS
4 2 (3.70%) AWS
5 1 (1.85%) Adobe Analytics
5 1 (1.85%) GCP
5 1 (1.85%) Power Platform
5 1 (1.85%) Serverless
Communications & Networking
1 5 (9.26%) Firewall
2 2 (3.70%) Internet
2 2 (3.70%) SSH
2 2 (3.70%) TCP/IP
3 1 (1.85%) BGP
3 1 (1.85%) DHCP
3 1 (1.85%) DNS
3 1 (1.85%) FTP
3 1 (1.85%) Intrusion Detection
3 1 (1.85%) Junos
3 1 (1.85%) L2TP
3 1 (1.85%) LAN
3 1 (1.85%) MPLS
3 1 (1.85%) OSPF
3 1 (1.85%) Skype
3 1 (1.85%) Spanning Tree
3 1 (1.85%) VPN
3 1 (1.85%) WAN
Database & Business Intelligence
1 2 (3.70%) Relational Database
2 1 (1.85%) Azure SQL Database
2 1 (1.85%) Cosmos DB
2 1 (1.85%) Data Lake
2 1 (1.85%) Data Warehouse
2 1 (1.85%) Hadoop
2 1 (1.85%) MongoDB
2 1 (1.85%) MySQL
2 1 (1.85%) Oracle Database
2 1 (1.85%) PostgreSQL
2 1 (1.85%) Power BI
2 1 (1.85%) Redis
2 1 (1.85%) SAP HANA
2 1 (1.85%) SQL Server
Development Applications
1 4 (7.41%) JIRA
1 4 (7.41%) Team Foundation Server
2 2 (3.70%) Git (software)
3 1 (1.85%) Ant
3 1 (1.85%) Atlassian Bamboo
3 1 (1.85%) ClearCase
3 1 (1.85%) Cucumber
3 1 (1.85%) Eclipse
3 1 (1.85%) FishEye
3 1 (1.85%) Gradle
3 1 (1.85%) Hudson
3 1 (1.85%) IntelliJ
3 1 (1.85%) Jenkins
3 1 (1.85%) Maven
3 1 (1.85%) Mercurial
3 1 (1.85%) Poseidon for UML
3 1 (1.85%) Selenium
3 1 (1.85%) Subversion
3 1 (1.85%) Vagrant
3 1 (1.85%) Visual Studio Team System
General
1 9 (16.67%) Finance
2 4 (7.41%) Banking
3 1 (1.85%) Arabic Language
3 1 (1.85%) Electronics
3 1 (1.85%) Front Office
3 1 (1.85%) Investment Banking
3 1 (1.85%) Manufacturing
3 1 (1.85%) Marketing
3 1 (1.85%) Public Sector
3 1 (1.85%) Retail Banking
Job Titles
1 9 (16.67%) Developer
2 8 (14.81%) Project Manager
3 7 (12.96%) Analyst
3 7 (12.96%) Architect
4 5 (9.26%) Senior Manager
4 5 (9.26%) Senior Project Manager
5 4 (7.41%) .NET Developer
5 4 (7.41%) Data Scientist
5 4 (7.41%) Senior Developer
5 4 (7.41%) Solutions Architect
6 3 (5.56%) C Developer
6 3 (5.56%) Senior .NET Developer
6 3 (5.56%) Senior C Developer
6 3 (5.56%) Senior VB.NET Developer
6 3 (5.56%) Team Leader
6 3 (5.56%) VB.NET Developer
7 2 (3.70%) Data Manager
7 2 (3.70%) Python Developer
7 2 (3.70%) Strategy Manager
7 2 (3.70%) Technical Leader
Libraries, Frameworks & Software Standards
1 8 (14.81%) .NET
2 3 (5.56%) .NET Core
3 2 (3.70%) AngularJS
3 2 (3.70%) ASP.NET Web API
3 2 (3.70%) HTML
3 2 (3.70%) jQuery
3 2 (3.70%) React
4 1 (1.85%) ActiveMQ
4 1 (1.85%) CSS
4 1 (1.85%) GWT
4 1 (1.85%) HTML5
4 1 (1.85%) JNI
4 1 (1.85%) JSON
4 1 (1.85%) Node.js
4 1 (1.85%) RabbitMQ
4 1 (1.85%) RESTful
4 1 (1.85%) Spring
4 1 (1.85%) STL
4 1 (1.85%) Web Services
4 1 (1.85%) XML
Miscellaneous
1 5 (9.26%) Algorithms
2 3 (5.56%) Greenfield Project
3 2 (3.70%) PMI
3 2 (3.70%) User Experience
4 1 (1.85%) AS400
4 1 (1.85%) Augmented Reality
4 1 (1.85%) Clustering
4 1 (1.85%) Data Centre
4 1 (1.85%) Derivative
4 1 (1.85%) EMV
4 1 (1.85%) Enterprise Cloud
4 1 (1.85%) Equities
4 1 (1.85%) Fixed Income
4 1 (1.85%) FMCG
4 1 (1.85%) Foreign Exchange (FX)
4 1 (1.85%) Management Information System
4 1 (1.85%) Smartphone
Operating Systems
1 8 (14.81%) Windows
2 3 (5.56%) Linux
2 3 (5.56%) Windows 10
3 2 (3.70%) Red Hat Enterprise Linux
3 2 (3.70%) Unix
4 1 (1.85%) AIX
4 1 (1.85%) Android
4 1 (1.85%) Apple iOS
4 1 (1.85%) CentOS
4 1 (1.85%) Debian
4 1 (1.85%) Mac OS X
4 1 (1.85%) Solaris
4 1 (1.85%) Ubuntu
4 1 (1.85%) Windows Embedded Compact
4 1 (1.85%) Windows Server
4 1 (1.85%) Windows Server 2003
4 1 (1.85%) Windows Server 2008
4 1 (1.85%) Windows Server 2012
4 1 (1.85%) zOS
Processes & Methodologies
1 8 (14.81%) Agile Software Development
2 6 (11.11%) Analytics
2 6 (11.11%) Data Science
2 6 (11.11%) Migration
2 6 (11.11%) Project Management
2 6 (11.11%) TDD
2 6 (11.11%) User Stories
3 5 (9.26%) Artificial Intelligence
3 5 (9.26%) Data Analytics
3 5 (9.26%) Deep Learning
3 5 (9.26%) Machine Learning
3 5 (9.26%) Mathematics
3 5 (9.26%) Stakeholder Management
3 5 (9.26%) Strategic Thinking
4 4 (7.41%) Physics
4 4 (7.41%) Project Delivery
4 4 (7.41%) Scrum
5 3 (5.56%) Kanban
5 3 (5.56%) Refactoring
5 3 (5.56%) Target Operating Model
Programming Languages
1 11 (20.37%) C++
1 11 (20.37%) Python
1 11 (20.37%) SQL
2 10 (18.52%) Java
3 5 (9.26%) R
4 4 (7.41%) C#
4 4 (7.41%) PowerShell
4 4 (7.41%) T-SQL
5 3 (5.56%) JavaScript
5 3 (5.56%) VB.NET
6 2 (3.70%) AWK
6 2 (3.70%) Embedded C
6 2 (3.70%) sed
7 1 (1.85%) Clojure
7 1 (1.85%) ClojureScript
7 1 (1.85%) Go
7 1 (1.85%) Groovy
7 1 (1.85%) Perl
7 1 (1.85%) PL/SQL
7 1 (1.85%) VBA
Qualifications
1 7 (12.96%) Degree
2 4 (7.41%) Numerate Degree
3 2 (3.70%) CISM
3 2 (3.70%) CISSP
3 2 (3.70%) PMI Certification
3 2 (3.70%) Security Cleared
4 1 (1.85%) CISA
4 1 (1.85%) CRISC
4 1 (1.85%) DV Cleared
4 1 (1.85%) GCIA
4 1 (1.85%) GCIH
4 1 (1.85%) MCSA
4 1 (1.85%) MCSE
4 1 (1.85%) Microsoft Certification
4 1 (1.85%) PRINCE2 Certification
4 1 (1.85%) SANS
4 1 (1.85%) SC Cleared
Quality Assurance & Compliance
1 2 (3.70%) PMO
2 1 (1.85%) GDPR
2 1 (1.85%) ISO 8583
2 1 (1.85%) QA
System Software
1 4 (7.41%) Active Directory
2 1 (1.85%) Citrix Hypervisor
2 1 (1.85%) Docker
2 1 (1.85%) XenApp
2 1 (1.85%) XenDesktop
Systems Management
1 3 (5.56%) SCCM
2 2 (3.70%) Microsoft Intune
3 1 (1.85%) CSIRT
3 1 (1.85%) Kubernetes
3 1 (1.85%) Opscode Chef
3 1 (1.85%) Puppet
3 1 (1.85%) Salt
3 1 (1.85%) Systems Management Server (SMS)
3 1 (1.85%) Tivoli
3 1 (1.85%) Tivoli Identity Manager
Vendors
1 14 (25.93%) Microsoft
2 2 (3.70%) IBM
2 2 (3.70%) Red Hat
2 2 (3.70%) ServiceNow
3 1 (1.85%) Adobe
3 1 (1.85%) Citrix
3 1 (1.85%) Cloudera
3 1 (1.85%) Google
3 1 (1.85%) Hortonworks
3 1 (1.85%) Infor
3 1 (1.85%) ION Trading
3 1 (1.85%) Juniper
3 1 (1.85%) Mitel
3 1 (1.85%) Oracle
3 1 (1.85%) Proofpoint
3 1 (1.85%) SAP
3 1 (1.85%) Splunk
3 1 (1.85%) Sybase
3 1 (1.85%) TIBCO
3 1 (1.85%) VMware