Period
to 15 November 2018

The following table provides summary statistics for contract job vacancies advertised in Hertfordshire 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 15 November 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
East of England > Hertfordshire
6 months to
15 Nov 2018
Same period 2017 Same period 2016
Rank 58 40 61
Rank change year-on-year -18 +21 +5
Contract jobs citing C 48 63 36
As % of all contract IT jobs advertised in Hertfordshire 2.93% 3.99% 2.59%
As % of the Programming Languages category 8.62% 10.47% 7.13%
Number of daily rates quoted 15 26 9
Hertfordshire median daily rate £400 £575 £425
Median daily rate % change year-on-year -30.43% +35.29% +13.33%
10th Percentile £250 £258 £317
90th Percentile £480 £875 £535
East of England median daily rate £450 £425 £425
% change year-on-year +5.88% - +13.33%
Number of hourly rates quoted 3 8 18
Hertfordshire median hourly rate £46.50 £40.00 £47.50
Median hourly rate % change year-on-year +16.25% -15.79% +18.75%
10th Percentile £44.75 £30.75 £37.00
90th Percentile £48.25 £46.50 £54.35
East of England median hourly rate £45.50 £42.00 £42.00
% change year-on-year +8.33% - +5.00%

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 Hertfordshire with a requirement for coding skills.

All Programming Languages
Hertfordshire
Contract vacancies with a requirement for coding skills 557 602 505
As % of all contract IT jobs advertised in Hertfordshire 34.05% 38.15% 36.28%
Number of daily rates quoted 365 318 290
Hertfordshire median daily rate £415 £416 £390
Median daily rate % change year-on-year -0.30% +6.73% +4.00%
10th Percentile £250 £279 £232
90th Percentile £556 £588 £538
East of England median daily rate £425 £400 £375
% change year-on-year +6.25% +6.67% -
Number of hourly rates quoted 20 22 28
Hertfordshire median hourly rate £46.50 £17.15 £49.75
Median hourly rate % change year-on-year +171.10% -65.52% +46.32%
10th Percentile £16.58 £13.65 £27.90
90th Percentile £52.50 £43.75 £54.35
East of England median hourly rate £43.75 £40.50 £40.00
% change year-on-year +8.02% +1.25% +6.67%

C
Job Vacancy Trend in Hertfordshire

Job postings citing C as a percentage of all IT jobs advertised in Hertfordshire.

Job vacancy trend for C in Hertfordshire

C
Contractor Daily Rate Trend in Hertfordshire

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

Contractor daily rate trend for C in Hertfordshire

C
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing C in Hertfordshire over the 6 months to 15 November 2018.

Contractor daily rate histogram for C in Hertfordshire

C
Contractor Hourly Rate Trend in Hertfordshire

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

Contractor hourly rate trend for C in Hertfordshire

C
Contract Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing C within the Hertfordshire region over the 6 months to 15 November 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Stevenage -7 24 £400 +40.35% 19
Hemel Hempstead +2 6 £350 - 2
Waltham Cross - 4 £300 - 3
Welwyn Garden City - 3 £415 - 2
Hatfield - 1 - - 1
C
East of England

For the 6 months to 15 November 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 Hertfordshire region with a requirement for C.

1 29 (60.42%) Software Engineering
2 24 (50.00%) C++
3 18 (37.50%) Linux
4 17 (35.42%) Security Cleared
5 12 (25.00%) SC Cleared
6 11 (22.92%) Wireshark
6 11 (22.92%) GDB
7 10 (20.83%) Rational Rhapsody
7 10 (20.83%) UML
8 9 (18.75%) SQL
8 9 (18.75%) Configuration Management
9 8 (16.67%) Java
9 8 (16.67%) Telecoms
9 8 (16.67%) Rational DOORS
9 8 (16.67%) Rational Team Concert
10 6 (12.50%) Signal Processing
10 6 (12.50%) Relational Database
10 6 (12.50%) Agile Software Development
10 6 (12.50%) Mathematics
10 6 (12.50%) VB
10 6 (12.50%) PL/SQL
10 6 (12.50%) Microsoft Excel
10 6 (12.50%) MATLAB
10 6 (12.50%) Embedded C
11 5 (10.42%) TCP/IP
11 5 (10.42%) HP
11 5 (10.42%) Python
11 5 (10.42%) Internet
11 5 (10.42%) Windows
11 5 (10.42%) VoIP

C
Co-occurring IT Skills in Hertfordshire 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 (2.08%) CMS
Applications
1 6 (12.50%) Microsoft Excel
2 4 (8.33%) Simulink
3 3 (6.25%) Microsoft Office
3 3 (6.25%) Stateflow
Business Applications
1 4 (8.33%) LabWindows
Cloud Services
1 2 (4.17%) Microsoft Azure
Communications & Networking
1 11 (22.92%) Wireshark
2 5 (10.42%) Internet
2 5 (10.42%) TCP/IP
2 5 (10.42%) VoIP
3 4 (8.33%) 3GPP
3 4 (8.33%) DHCP
3 4 (8.33%) HTTP
3 4 (8.33%) IGMP
3 4 (8.33%) LTE
3 4 (8.33%) PBX
3 4 (8.33%) RTCP
3 4 (8.33%) RTP
3 4 (8.33%) SNMP
3 4 (8.33%) VLAN
4 3 (6.25%) 5G
5 2 (4.17%) Firewall
5 2 (4.17%) NAS
5 2 (4.17%) WCDMA
5 2 (4.17%) Wireless
6 1 (2.08%) FTP
Database & Business Intelligence
1 6 (12.50%) Relational Database
2 1 (2.08%) MySQL
2 1 (2.08%) SQL Server
Development Applications
1 11 (22.92%) GDB
2 10 (20.83%) Rational Rhapsody
3 8 (16.67%) Rational DOORS
3 8 (16.67%) Rational Team Concert
4 5 (10.42%) Subversion
4 5 (10.42%) Team Foundation Server
5 4 (8.33%) JMeter
5 4 (8.33%) LabVIEW
5 4 (8.33%) Valgrind
5 4 (8.33%) Visual Studio
6 3 (6.25%) JIRA
6 3 (6.25%) Selenium
7 1 (2.08%) LoadRunner
7 1 (2.08%) Rational Statemate
General
1 8 (16.67%) Telecoms
2 1 (2.08%) Electronics
2 1 (2.08%) Law
2 1 (2.08%) Legal
2 1 (2.08%) Marketing
2 1 (2.08%) Retail
Job Titles
1 15 (31.25%) Software Engineer
2 11 (22.92%) Developer
3 10 (20.83%) C++ Software Engineer
4 6 (12.50%) Design Engineer
4 6 (12.50%) Software Test Engineer
4 6 (12.50%) Test Engineer
5 5 (10.42%) Software Design Engineer
5 5 (10.42%) Software Developer
6 4 (8.33%) C Developer
6 4 (8.33%) Embedded Engineer
6 4 (8.33%) Embedded Software Engineer
6 4 (8.33%) VoIP Developer
7 3 (6.25%) Agile Tester
7 3 (6.25%) Analyst
7 3 (6.25%) Automation Tester
7 3 (6.25%) C Software Engineer
7 3 (6.25%) C/C++ Software Engineer
7 3 (6.25%) Test Analyst
7 3 (6.25%) Tester
8 2 (4.17%) Project Manager
Libraries, Frameworks & Software Standards
1 4 (8.33%) FreeSWITCH
1 4 (8.33%) XML
2 2 (4.17%) .NET
2 2 (4.17%) AngularJS
2 2 (4.17%) ASP.NET Web API
2 2 (4.17%) CSS
2 2 (4.17%) HTML
2 2 (4.17%) HTML5
2 2 (4.17%) Kafka
2 2 (4.17%) RabbitMQ
2 2 (4.17%) REST
2 2 (4.17%) Twitter Bootstrap
3 1 (2.08%) CSS3
3 1 (2.08%) JSF
3 1 (2.08%) LESS
3 1 (2.08%) Sass
Miscellaneous
1 4 (8.33%) Analytical Skills
2 2 (4.17%) Device Driver
2 2 (4.17%) Field-Programmable Gate Array
3 1 (2.08%) Algorithms
3 1 (2.08%) ASIC
3 1 (2.08%) Clustering
3 1 (2.08%) Data Protection Act
3 1 (2.08%) Embedded Systems
3 1 (2.08%) HP Storage
3 1 (2.08%) Management Information System
3 1 (2.08%) Private Cloud
Operating Systems
1 18 (37.50%) Linux
2 5 (10.42%) Windows
3 2 (4.17%) CentOS
3 2 (4.17%) Red Hat Enterprise Linux
4 1 (2.08%) HPUX
4 1 (2.08%) Solaris
4 1 (2.08%) Unix
4 1 (2.08%) VxWorks
4 1 (2.08%) Windows Server
Processes & Methodologies
1 29 (60.42%) Software Engineering
2 10 (20.83%) UML
3 9 (18.75%) Configuration Management
4 6 (12.50%) Agile Software Development
4 6 (12.50%) Mathematics
4 6 (12.50%) Signal Processing
5 5 (10.42%) Test Scripting
5 5 (10.42%) Validation
6 4 (8.33%) Mathematical Modelling
6 4 (8.33%) OO
6 4 (8.33%) Scenario Testing
6 4 (8.33%) Test Strategy
7 3 (6.25%) Embedded Software Development
7 3 (6.25%) Functional Testing
7 3 (6.25%) Infrastructure Management
7 3 (6.25%) Non-Functional Testing
7 3 (6.25%) Operational Acceptance Testing
7 3 (6.25%) Problem-Solving
7 3 (6.25%) Software Testing
7 3 (6.25%) Test Automation
Programming Languages
1 24 (50.00%) C++
2 9 (18.75%) SQL
3 8 (16.67%) Java
4 6 (12.50%) Embedded C
4 6 (12.50%) MATLAB
4 6 (12.50%) PL/SQL
4 6 (12.50%) VB
5 5 (10.42%) Perl
5 5 (10.42%) Python
6 4 (8.33%) Embedded C++
7 3 (6.25%) C#
8 2 (4.17%) Assembly Language
8 2 (4.17%) Bash Shell
8 2 (4.17%) JavaScript
8 2 (4.17%) R
9 1 (2.08%) Ada
9 1 (2.08%) ANSI C
9 1 (2.08%) Korn
9 1 (2.08%) Shell Script
Qualifications
1 17 (35.42%) Security Cleared
2 12 (25.00%) SC Cleared
3 4 (8.33%) Degree
4 3 (6.25%) ISTQB
4 3 (6.25%) ISTQB Foundation Certification
5 1 (2.08%) DBS Check
5 1 (2.08%) DV Cleared
5 1 (2.08%) MCP
5 1 (2.08%) Microsoft Certification
5 1 (2.08%) OCP
5 1 (2.08%) Oracle Certification
Quality Assurance & Compliance
1 1 (2.08%) GDPR
1 1 (2.08%) MISRA
System Software
1 4 (8.33%) Hyper-V
1 4 (8.33%) KVM
1 4 (8.33%) VirtualBox
2 1 (2.08%) Active Directory
Systems Management
1 3 (6.25%) HP ALM
1 3 (6.25%) HP Quality Center
2 1 (2.08%) Ansible
2 1 (2.08%) FortiGate
2 1 (2.08%) Opscode Chef
2 1 (2.08%) Puppet
2 1 (2.08%) Salt
2 1 (2.08%) SELinux
Vendors
1 5 (10.42%) HP
2 3 (6.25%) MathWorks
3 2 (4.17%) Cisco
3 2 (4.17%) Microsoft
3 2 (4.17%) Red Hat
3 2 (4.17%) VMware
4 1 (2.08%) ConnectWise
4 1 (2.08%) Fortinet
4 1 (2.08%) NetApp
4 1 (2.08%) Oracle
4 1 (2.08%) Palo Alto