Period
to 25 February 2018

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 25 February 2018 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
25 Feb 2018
Same period 2017 Same period 2016
Rank 197 130 158
Rank change year-on-year -67 +28 +1
Contract jobs citing C 52 97 68
As % of all contract IT jobs advertised in the City of London 0.74% 1.59% 1.01%
As % of the Programming Languages category 1.39% 3.17% 2.16%
Number of daily rates quoted 42 85 61
City of London median daily rate £525 £550 £500
Median daily rate % change year-on-year -4.55% +10.00% +17.65%
10th Percentile £367 £410 £275
90th Percentile £748 £638 £688
Central London median daily rate £525 £550 £479
% change year-on-year -4.55% +14.94% +12.59%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

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 3,750 3,057 3,148
As % of all contract IT jobs advertised in the City of London 53.56% 50.21% 46.75%
Number of daily rates quoted 3,193 2,562 2,651
City of London median daily rate £525 £486 £475
Median daily rate % change year-on-year +7.97% +2.37% +5.56%
10th Percentile £363 £325 £313
90th Percentile £700 £663 £663
Central London median daily rate £513 £475 £475
% change year-on-year +7.89% - +5.56%
Number of hourly rates quoted 15 8 16
City of London median hourly rate £21.50 £27.50 £27.98
Median hourly rate % change year-on-year -21.82% -1.72% +18.13%
10th Percentile £17.75 £16.90 £19.25
90th Percentile £59.80 £50.31 £57.50
Central London median hourly rate £21.50 £27.50 £27.98
% change year-on-year -21.82% -1.72% +34.84%

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 25 February 2018.

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 25 February 2018, 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 15 (28.85%) Finance
2 14 (26.92%) C++
2 14 (26.92%) SQL
3 13 (25.00%) Agile Software Development
3 13 (25.00%) Banking
4 10 (19.23%) Java
5 9 (17.31%) Linux
6 8 (15.38%) Python
7 7 (13.46%) Investment Banking
7 7 (13.46%) Microsoft Azure
7 7 (13.46%) SDLC
8 6 (11.54%) Greenfield Project
8 6 (11.54%) Computer Science
8 6 (11.54%) C#
8 6 (11.54%) .NET
9 5 (9.62%) Microsoft
9 5 (9.62%) Oracle
9 5 (9.62%) Perl
9 5 (9.62%) Unix
9 5 (9.62%) Windows
9 5 (9.62%) OO
9 5 (9.62%) Front Office
9 5 (9.62%) Stakeholder Management
9 5 (9.62%) Degree
9 5 (9.62%) Amazon AWS
9 5 (9.62%) Waterfall
9 5 (9.62%) Analytical Skills
10 4 (7.69%) Computer Science Degree
10 4 (7.69%) Analytics
10 4 (7.69%) PowerShell

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 1 (1.92%) Apache
1 1 (1.92%) Apache Spark
1 1 (1.92%) CMS
1 1 (1.92%) MS Exchange
1 1 (1.92%) SharePoint
1 1 (1.92%) Skype for Business
1 1 (1.92%) ThingWorx
1 1 (1.92%) Tomcat
1 1 (1.92%) WebSphere
1 1 (1.92%) WebSphere Application Server
Applications
1 4 (7.69%) Microsoft Excel
2 2 (3.85%) Microsoft PowerPoint
3 1 (1.92%) Microsoft Office
3 1 (1.92%) Microsoft Project
3 1 (1.92%) MS Visio
3 1 (1.92%) Spreadsheet
Business Applications
1 1 (1.92%) Oracle Cash Management
1 1 (1.92%) Workday HCM
Cloud Services
1 7 (13.46%) Microsoft Azure
2 5 (9.62%) Amazon AWS
3 2 (3.85%) Cloud Computing
3 2 (3.85%) Google Cloud Platform
3 2 (3.85%) IaaS
4 1 (1.92%) SaaS
Communications & Networking
1 4 (7.69%) Firewall
2 1 (1.92%) 3G
2 1 (1.92%) 4G
2 1 (1.92%) GSM
2 1 (1.92%) Intrusion Detection
2 1 (1.92%) LAN
2 1 (1.92%) Modbus
2 1 (1.92%) MQTT
2 1 (1.92%) Network Security
2 1 (1.92%) OpenFlow
2 1 (1.92%) Skype
2 1 (1.92%) TCP/IP
2 1 (1.92%) VPN
2 1 (1.92%) WAN
2 1 (1.92%) Wireless
Database & Business Intelligence
1 4 (7.69%) SQL Server
2 3 (5.77%) Big Data
2 3 (5.77%) Data Warehouse
2 3 (5.77%) Hadoop
3 2 (3.85%) Data Lake
3 2 (3.85%) Relational Database
3 2 (3.85%) SQL Server Integration Services
4 1 (1.92%) Azure SQL Data Warehouse
4 1 (1.92%) Azure SQL Database
4 1 (1.92%) HBase
4 1 (1.92%) Mahout
4 1 (1.92%) NoSQL
4 1 (1.92%) Power BI
4 1 (1.92%) RDBMS
4 1 (1.92%) Spotfire
4 1 (1.92%) SQL Server Reporting Services
Development Applications
1 2 (3.85%) Subversion
2 1 (1.92%) Git (software)
2 1 (1.92%) JConsole
2 1 (1.92%) JProfiler
2 1 (1.92%) Maven
2 1 (1.92%) NUnit
2 1 (1.92%) Oracle APEX
2 1 (1.92%) TeamCity
2 1 (1.92%) VisualVM
General
1 15 (28.85%) Finance
2 13 (25.00%) Banking
3 7 (13.46%) Investment Banking
4 5 (9.62%) Front Office
5 4 (7.69%) Legal
5 4 (7.69%) Telecoms
6 2 (3.85%) Financial Institution
6 2 (3.85%) Retail
7 1 (1.92%) Advertising
7 1 (1.92%) Law
7 1 (1.92%) Marketing
7 1 (1.92%) Publishing
Job Titles
1 12 (23.08%) Developer
2 10 (19.23%) Analyst
3 6 (11.54%) Architect
3 6 (11.54%) Business Analyst
4 4 (7.69%) C++ Developer
4 4 (7.69%) Consultant
5 3 (5.77%) Applications Support
5 3 (5.77%) Programmer
5 3 (5.77%) Python Developer
6 2 (3.85%) AWS Architect
6 2 (3.85%) Azure Architect
6 2 (3.85%) C Developer
6 2 (3.85%) Cloud Architect
6 2 (3.85%) Data Architect
6 2 (3.85%) Front Office Developer
6 2 (3.85%) Java Developer
6 2 (3.85%) Linux Engineer
6 2 (3.85%) Senior Linux Engineer
6 2 (3.85%) SQL Developer
6 2 (3.85%) Support Analyst
Libraries, Frameworks & Software Standards
1 6 (11.54%) .NET
2 3 (5.77%) Boost C++ Libraries
3 2 (3.85%) AngularJS
3 2 (3.85%) ASP.NET
3 2 (3.85%) FIX Protocol
3 2 (3.85%) HTML
3 2 (3.85%) REST
4 1 (1.92%) Ajax
4 1 (1.92%) Angular 2
4 1 (1.92%) ASP.NET MVC
4 1 (1.92%) ASP.NET MVC 5
4 1 (1.92%) HTML5
4 1 (1.92%) jQuery
4 1 (1.92%) React
4 1 (1.92%) Ruby on Rails
4 1 (1.92%) SOAP
4 1 (1.92%) Web Services
4 1 (1.92%) XHTML
4 1 (1.92%) XML
4 1 (1.92%) XMPP
Miscellaneous
1 6 (11.54%) Computer Science
1 6 (11.54%) Greenfield Project
2 5 (9.62%) Analytical Skills
3 4 (7.69%) Foreign Exchange (FX)
4 3 (5.77%) Mobile App
5 2 (3.85%) Algorithms
5 2 (3.85%) Data Structures
5 2 (3.85%) Derivative
5 2 (3.85%) Fixed Income
5 2 (3.85%) Java Card
5 2 (3.85%) Smartcard
5 2 (3.85%) User Experience
6 1 (1.92%) Analytical Mindset
6 1 (1.92%) Client/Server
6 1 (1.92%) Equities
6 1 (1.92%) Fintech
6 1 (1.92%) Grid Computing
6 1 (1.92%) Internet of Things
6 1 (1.92%) SWIFT
6 1 (1.92%) Virtual Team
Operating Systems
1 9 (17.31%) Linux
2 5 (9.62%) Unix
2 5 (9.62%) Windows
3 2 (3.85%) CentOS
3 2 (3.85%) Ubuntu
3 2 (3.85%) Windows Server
4 1 (1.92%) Android
4 1 (1.92%) Apple iOS
4 1 (1.92%) Red Hat Enterprise Linux
4 1 (1.92%) Windows 10
4 1 (1.92%) Windows Server 2008
Processes & Methodologies
1 13 (25.00%) Agile Software Development
2 7 (13.46%) SDLC
3 5 (9.62%) OO
3 5 (9.62%) Stakeholder Management
3 5 (9.62%) Waterfall
4 4 (7.69%) Analytics
4 4 (7.69%) Enterprise Architecture
4 4 (7.69%) ITIL
4 4 (7.69%) Programme Management
4 4 (7.69%) Scrum
4 4 (7.69%) TDD
5 3 (5.77%) Coaching
5 3 (5.77%) Continuous Improvement
5 3 (5.77%) Data Modelling
5 3 (5.77%) Investment Management
5 3 (5.77%) Low Latency
5 3 (5.77%) Migration
5 3 (5.77%) Multithreading
5 3 (5.77%) Strategic Thinking
5 3 (5.77%) System Testing
Programming Languages
1 14 (26.92%) C++
1 14 (26.92%) SQL
2 10 (19.23%) Java
3 8 (15.38%) Python
4 6 (11.54%) C#
5 5 (9.62%) Perl
6 4 (7.69%) JavaScript
6 4 (7.69%) PowerShell
7 3 (5.77%) Shell Script
8 2 (3.85%) Bash Shell
8 2 (3.85%) Embedded C
8 2 (3.85%) F#
8 2 (3.85%) T-SQL
8 2 (3.85%) VBA
9 1 (1.92%) Apple Swift
9 1 (1.92%) Objective-C
9 1 (1.92%) PHP
9 1 (1.92%) R
9 1 (1.92%) Ruby
9 1 (1.92%) VBScript
Qualifications
1 5 (9.62%) Degree
2 4 (7.69%) Computer Science Degree
3 1 (1.92%) CISM
3 1 (1.92%) CISSP
3 1 (1.92%) DV Cleared
3 1 (1.92%) GCIA
3 1 (1.92%) GCIH
3 1 (1.92%) GIAC
3 1 (1.92%) Network+ Certification
3 1 (1.92%) Novell Certification
3 1 (1.92%) SANS
3 1 (1.92%) Security Cleared
Quality Assurance & Compliance
1 1 (1.92%) GDPR
1 1 (1.92%) PMO
1 1 (1.92%) SEPA
1 1 (1.92%) Solvency II
1 1 (1.92%) TARGET2
System Software
1 2 (3.85%) VMware Infrastructure
2 1 (1.92%) Active Directory
2 1 (1.92%) Firmware
2 1 (1.92%) Hyper-V
2 1 (1.92%) KVM
2 1 (1.92%) Microsoft Virtual Server
2 1 (1.92%) Virtual Servers
2 1 (1.92%) XenApp
2 1 (1.92%) XenDesktop
Systems Management
1 2 (3.85%) SCCM
2 1 (1.92%) Ansible
2 1 (1.92%) CSIRT
2 1 (1.92%) Grafana
2 1 (1.92%) Host Intrusion Detection System
2 1 (1.92%) Opscode Chef
2 1 (1.92%) Puppet
2 1 (1.92%) SCVMM
Vendors
1 5 (9.62%) Microsoft
1 5 (9.62%) Oracle
2 4 (7.69%) Google
3 2 (3.85%) Charles River
3 2 (3.85%) Red Hat
3 2 (3.85%) ServiceNow
3 2 (3.85%) VMware
4 1 (1.92%) Cisco
4 1 (1.92%) Citrix
4 1 (1.92%) HP
4 1 (1.92%) SolarWinds
4 1 (1.92%) Sun
4 1 (1.92%) Sybase
4 1 (1.92%) Tableau
4 1 (1.92%) Veeam
4 1 (1.92%) Workday