Period
to 21 November 2017

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 21 November 2017 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
21 Nov 2017
Same period 2016 Same period 2015
Rank 178 140 168
Rank change year-on-year -38 +28 -16
Contract jobs citing C 74 110 97
As % of all contract IT jobs advertised in the City of London 1.03% 1.65% 1.07%
As % of the Programming Languages category 1.97% 3.28% 2.29%
Number of daily rates quoted 60 96 86
City of London median daily rate £525 £550 £463
Median daily rate % change year-on-year -4.55% +18.92% +8.50%
10th Percentile £404 £413 £307
90th Percentile £725 £625 £675
Central London median daily rate £525 £525 £450
% change year-on-year - +16.67% +5.88%
Number of hourly rates quoted 0 0 1
City of London median hourly rate - - £16.35
Central London median hourly rate £42.50 - £16.35

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 3761 3358 4238
As % of all contract IT jobs advertised in the City of London 52.59% 50.47% 46.77%
Number of daily rates quoted 3125 2822 3549
City of London median daily rate £525 £475 £475
Median daily rate % change year-on-year +10.53% - +5.56%
10th Percentile £363 £325 £313
90th Percentile £688 £650 £663
Central London median daily rate £513 £475 £475
% change year-on-year +7.89% - +5.56%
Number of hourly rates quoted 14 10 22
City of London median hourly rate £22.99 £27.50 £26.09
Median hourly rate % change year-on-year -16.39% +5.42% +30.43%
10th Percentile £15.12 £16.06 £16.10
90th Percentile £39.10 £55.19 £53.70
Central London median hourly rate £24.49 £27.50 £26.09
% change year-on-year -10.96% +5.42% +30.43%

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 21 November 2017.

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 21 November 2017, IT contractor jobs citing C also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for C.

1 27 (36.49%) Finance
2 22 (29.73%) C++
3 17 (22.97%) SQL
3 17 (22.97%) Banking
4 16 (21.62%) Linux
5 14 (18.92%) Stakeholder Management
5 14 (18.92%) Agile Software Development
6 13 (17.57%) Python
6 13 (17.57%) Microsoft Excel
7 12 (16.22%) Java
8 11 (14.86%) Front Office
9 10 (13.51%) Microsoft
10 9 (12.16%) Data Modelling
10 9 (12.16%) Perl
10 9 (12.16%) Degree
11 8 (10.81%) Computer Science
11 8 (10.81%) Analytics
11 8 (10.81%) Analytical Skills
12 7 (9.46%) SDLC
12 7 (9.46%) R
12 7 (9.46%) Microsoft Azure
12 7 (9.46%) Bash Shell
12 7 (9.46%) User Acceptance Testing
12 7 (9.46%) JavaScript
12 7 (9.46%) VB
12 7 (9.46%) VBA
12 7 (9.46%) OO
13 6 (8.11%) Calypso
13 6 (8.11%) Foreign Exchange (FX)
13 6 (8.11%) Red Hat

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 (2.70%) CMS
1 2 (2.70%) EPiServer
1 2 (2.70%) Sitecore CMS
2 1 (1.35%) MS Exchange
2 1 (1.35%) SharePoint
2 1 (1.35%) Skype for Business
Applications
1 13 (17.57%) Microsoft Excel
2 2 (2.70%) Microsoft Project
3 1 (1.35%) Microsoft PowerPoint
3 1 (1.35%) Spreadsheet
Business Applications
1 3 (4.05%) Dynamics NAV
2 2 (2.70%) Eloqua
3 1 (1.35%) Oracle EBS
3 1 (1.35%) Oracle ERP
3 1 (1.35%) RMDS
3 1 (1.35%) Workday HCM
Cloud Services
1 7 (9.46%) Microsoft Azure
2 6 (8.11%) Amazon AWS
3 2 (2.70%) Cloud Computing
3 2 (2.70%) GitHub
3 2 (2.70%) Google Cloud Platform
3 2 (2.70%) IaaS
3 2 (2.70%) npm
4 1 (1.35%) AWS CloudFormation
4 1 (1.35%) Salesforce Sales Cloud
Communications & Networking
1 4 (5.41%) LAN
2 3 (4.05%) Firewall
2 3 (4.05%) VPN
3 2 (2.70%) 3G
3 2 (2.70%) 4G
3 2 (2.70%) Network Security
3 2 (2.70%) TCP/IP
3 2 (2.70%) WAN
3 2 (2.70%) WebEx
4 1 (1.35%) Broadband
4 1 (1.35%) Ethernet
4 1 (1.35%) GSM
4 1 (1.35%) Intrusion Detection
4 1 (1.35%) LTE
4 1 (1.35%) MPLS
4 1 (1.35%) OpenFlow
4 1 (1.35%) Skype
4 1 (1.35%) Telepresence
4 1 (1.35%) VLAN
4 1 (1.35%) VoIP
Database & Business Intelligence
1 3 (4.05%) NoSQL
2 2 (2.70%) Couchbase
2 2 (2.70%) Data Warehouse
2 2 (2.70%) MongoDB
2 2 (2.70%) MySQL
2 2 (2.70%) SQL Server
3 1 (1.35%) Azure SQL Data Warehouse
3 1 (1.35%) Azure SQL Database
3 1 (1.35%) Big Data
3 1 (1.35%) Data Lake
3 1 (1.35%) Hadoop
3 1 (1.35%) RDBMS
3 1 (1.35%) Relational Database
3 1 (1.35%) SQL Server Analysis Services
3 1 (1.35%) SQL Server Integration Services
3 1 (1.35%) SQLite
Development Applications
1 6 (8.11%) Git (software)
2 4 (5.41%) Jenkins
3 3 (4.05%) Visual Studio
4 2 (2.70%) Bitbucket
4 2 (2.70%) Bower
4 2 (2.70%) gulp
4 2 (2.70%) JIRA
4 2 (2.70%) Karma Test Runner
4 2 (2.70%) Mocha
4 2 (2.70%) Oracle APEX
4 2 (2.70%) Protractor
4 2 (2.70%) Selenium
4 2 (2.70%) Sinon.JS
4 2 (2.70%) Subversion
4 2 (2.70%) Team Foundation Server
4 2 (2.70%) TeamCity
5 1 (1.35%) Android Studio
5 1 (1.35%) GitLab
5 1 (1.35%) Mercurial
5 1 (1.35%) Sonatype Nexus
General
1 27 (36.49%) Finance
2 17 (22.97%) Banking
3 11 (14.86%) Front Office
4 6 (8.11%) Investment Banking
5 4 (5.41%) Marketing
6 3 (4.05%) Advertising
6 3 (4.05%) Financial Institution
6 3 (4.05%) Legal
6 3 (4.05%) Retail
6 3 (4.05%) Telecoms
7 1 (1.35%) Law
7 1 (1.35%) Publishing
Job Titles
1 20 (27.03%) Developer
2 14 (18.92%) Analyst
3 7 (9.46%) C++ Developer
4 6 (8.11%) Data Analyst
4 6 (8.11%) Data Modeller
5 5 (6.76%) Consultant
5 5 (6.76%) Project Manager
6 4 (5.41%) Architect
6 4 (5.41%) C Developer
6 4 (5.41%) Python Developer
7 3 (4.05%) C/C++ Developer
7 3 (4.05%) Infrastructure Manager
7 3 (4.05%) Programmer
8 2 (2.70%) AWS Architect
8 2 (2.70%) Azure Architect
8 2 (2.70%) Cloud Architect
8 2 (2.70%) CSS Developer
8 2 (2.70%) DevOps Engineer
8 2 (2.70%) HTML CSS Developer
8 2 (2.70%) Lead Analyst Developer
Libraries, Frameworks & Software Standards
1 5 (6.76%) Boost C++ Libraries
1 5 (6.76%) HTML
2 4 (5.41%) .NET
2 4 (5.41%) jQuery
2 4 (5.41%) Web Services
3 3 (4.05%) CSS
3 3 (4.05%) Gherkin
3 3 (4.05%) REST
3 3 (4.05%) RESTful
3 3 (4.05%) Twitter Bootstrap
4 2 (2.70%) AngularJS
4 2 (2.70%) Backbone.js
4 2 (2.70%) CSS3
4 2 (2.70%) D3.js
4 2 (2.70%) Ember.js
4 2 (2.70%) HTML5
4 2 (2.70%) HTML5 Canvas
4 2 (2.70%) LESS
4 2 (2.70%) MEAN Stack
4 2 (2.70%) Sass
Miscellaneous
1 8 (10.81%) Analytical Skills
1 8 (10.81%) Computer Science
2 6 (8.11%) Foreign Exchange (FX)
2 6 (8.11%) Greenfield Project
3 5 (6.76%) Fixed Income
4 4 (5.41%) Derivative
4 4 (5.41%) Mobile App
4 4 (5.41%) Reinsurance
5 3 (4.05%) User Experience
6 2 (2.70%) Algorithms
6 2 (2.70%) Cloud Native
6 2 (2.70%) Data Structures
6 2 (2.70%) Equities
6 2 (2.70%) Java Card
6 2 (2.70%) Smartcard
6 2 (2.70%) Virtual Team
7 1 (1.35%) Client/Server
7 1 (1.35%) Equity Derivative
7 1 (1.35%) Fintech
7 1 (1.35%) Management Information System
Operating Systems
1 16 (21.62%) Linux
2 5 (6.76%) CentOS
2 5 (6.76%) Unix
2 5 (6.76%) Windows
3 2 (2.70%) Android
3 2 (2.70%) Ubuntu
4 1 (1.35%) Apple iOS
4 1 (1.35%) Red Hat Enterprise Linux
4 1 (1.35%) Windows 10
Processes & Methodologies
1 14 (18.92%) Agile Software Development
1 14 (18.92%) Stakeholder Management
2 9 (12.16%) Data Modelling
3 8 (10.81%) Analytics
4 7 (9.46%) OO
4 7 (9.46%) SDLC
4 7 (9.46%) User Acceptance Testing
5 6 (8.11%) Collateral Management
5 6 (8.11%) Data Analytics
5 6 (8.11%) TDD
6 5 (6.76%) Continuous Integration
6 5 (6.76%) Low Latency
6 5 (6.76%) Project Management
6 5 (6.76%) System Testing
7 4 (5.41%) E-Commerce
7 4 (5.41%) ITIL
7 4 (5.41%) Migration
7 4 (5.41%) OOP
7 4 (5.41%) Performance Management
7 4 (5.41%) Process Management
Programming Languages
1 22 (29.73%) C++
2 17 (22.97%) SQL
3 13 (17.57%) Python
4 12 (16.22%) Java
5 9 (12.16%) Perl
6 7 (9.46%) Bash Shell
6 7 (9.46%) JavaScript
6 7 (9.46%) R
6 7 (9.46%) VB
6 7 (9.46%) VBA
7 5 (6.76%) Shell Script
8 4 (5.41%) C#
9 3 (4.05%) PHP
9 3 (4.05%) PowerShell
10 2 (2.70%) Embedded C
10 2 (2.70%) F#
11 1 (1.35%) PL/SQL
11 1 (1.35%) T-SQL
11 1 (1.35%) VBScript
11 1 (1.35%) VC++
Qualifications
1 9 (12.16%) Degree
2 6 (8.11%) Computer Science Degree
3 5 (6.76%) Security Cleared
4 2 (2.70%) DV Cleared
5 1 (1.35%) CCIE
5 1 (1.35%) CCIE Collaboration
5 1 (1.35%) CCNA
5 1 (1.35%) CCNP
5 1 (1.35%) Cisco Certification
5 1 (1.35%) CISM
5 1 (1.35%) CISSP
5 1 (1.35%) CTC Cleared
5 1 (1.35%) GCIA
5 1 (1.35%) GCIH
5 1 (1.35%) GIAC
5 1 (1.35%) Network+ Certification
5 1 (1.35%) Novell Certification
5 1 (1.35%) SANS
5 1 (1.35%) SC Cleared
Quality Assurance & Compliance
1 4 (5.41%) Solvency II
2 1 (1.35%) PMO
2 1 (1.35%) QA
System Software
1 2 (2.70%) VMware Infrastructure
2 1 (1.35%) Active Directory
2 1 (1.35%) Docker
2 1 (1.35%) Firmware
2 1 (1.35%) Hyper-V
2 1 (1.35%) KVM
2 1 (1.35%) Microsoft Virtual Server
2 1 (1.35%) Virtual Servers
2 1 (1.35%) XenApp
2 1 (1.35%) XenDesktop
Systems Management
1 4 (5.41%) Ansible
1 4 (5.41%) Puppet
2 2 (2.70%) logstash
2 2 (2.70%) SCCM
3 1 (1.35%) Cisco UCCX
3 1 (1.35%) CSIRT
3 1 (1.35%) Docker Swarm
3 1 (1.35%) Host Intrusion Detection System
3 1 (1.35%) Kubernetes
3 1 (1.35%) Opscode Chef
3 1 (1.35%) SCVMM
3 1 (1.35%) Terraform
3 1 (1.35%) Thomson Reuters DACS
Vendors
1 10 (13.51%) Microsoft
2 6 (8.11%) Bloomberg
2 6 (8.11%) Calypso
2 6 (8.11%) Red Hat
2 6 (8.11%) Reuters
3 5 (6.76%) Oracle
4 3 (4.05%) Cisco
4 3 (4.05%) Google
5 2 (2.70%) Marketo
5 2 (2.70%) Sitecore
5 2 (2.70%) Sun
5 2 (2.70%) Sybase
5 2 (2.70%) VMware
6 1 (1.35%) Aveksa
6 1 (1.35%) IBM
6 1 (1.35%) New Relic
6 1 (1.35%) SolarWinds
6 1 (1.35%) Twitter
6 1 (1.35%) Veeam
6 1 (1.35%) Workday