Period
to 16 February 2019

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 16 February 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
East of England > Hertfordshire
6 months to
16 Feb 2019
Same period 2018 Same period 2017
Rank 43 55 65
Rank change year-on-year +12 +10 +1
Contract jobs citing C 59 50 36
As % of all contract IT jobs advertised in Hertfordshire 4.19% 3.21% 2.68%
As % of the Programming Languages category 12.69% 8.49% 7.41%
Number of daily rates quoted 13 17 8
Hertfordshire median daily rate £375 £305 £394
Median daily rate % change year-on-year +22.95% -22.54% -17.11%
10th Percentile £250 £142 £276
90th Percentile £475 £860 £540
East of England median daily rate £410 £450 £403
% change year-on-year -8.89% +11.80% +0.63%
Number of hourly rates quoted 5 6 18
Hertfordshire median hourly rate £45.00 £42.25 £45.00
Median hourly rate % change year-on-year +6.51% -6.11% +12.50%
10th Percentile £38.60 £37.50 £19.00
90th Percentile £47.85 £74.38 £53.74
East of England median hourly rate £46.50 £42.00 £42.50
% change year-on-year +10.71% -1.18% +6.25%

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 465 589 486
As % of all contract IT jobs advertised in Hertfordshire 33.00% 37.85% 36.24%
Number of daily rates quoted 282 312 300
Hertfordshire median daily rate £425 £419 £425
Median daily rate % change year-on-year +1.49% -1.47% +9.68%
10th Percentile £300 £294 £250
90th Percentile £574 £588 £551
East of England median daily rate £435 £425 £390
% change year-on-year +2.35% +8.97% +4.00%
Number of hourly rates quoted 19 16 33
Hertfordshire median hourly rate £45.00 £37.50 £45.71
Median hourly rate % change year-on-year +20.00% -17.95% +11.48%
10th Percentile £17.85 £10.63 £36.25
90th Percentile £50.25 £44.38 £53.75
East of England median hourly rate £44.50 £41.50 £41.19
% change year-on-year +7.23% +0.76% +5.61%

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 16 February 2019.

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 16 February 2019. 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 -6 33 £400 +40.35% 16
Waltham Cross - 4 £300 - 1
Hemel Hempstead - 3 - -
Welwyn Garden City +8 1 £450 -
Watford +5 1 £450 -33.33% 3
C
East of England

For the 6 months to 16 February 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 Hertfordshire region with a requirement for C.

1 36 (61.02%) C++
2 32 (54.24%) Software Engineering
3 19 (32.20%) Linux
3 19 (32.20%) Embedded C
4 15 (25.42%) 3GPP
5 14 (23.73%) LTE
6 13 (22.03%) Security Cleared
7 12 (20.34%) Agile Software Development
7 12 (20.34%) Embedded C++
7 12 (20.34%) 5G
8 11 (18.64%) Embedded Software Development
8 11 (18.64%) Wireless
8 11 (18.64%) Telecoms
9 10 (16.95%) UML
10 9 (15.25%) SC Cleared
10 9 (15.25%) Signal Processing
10 9 (15.25%) Validation
10 9 (15.25%) MATLAB
11 8 (13.56%) Java
12 7 (11.86%) Windows
12 7 (11.86%) Rational Rhapsody
12 7 (11.86%) NAS
12 7 (11.86%) Degree
13 6 (10.17%) Problem-Solving
13 6 (10.17%) Algorithms
13 6 (10.17%) TDD
13 6 (10.17%) Mathematics
13 6 (10.17%) Feature Driven Development
13 6 (10.17%) HTTP
13 6 (10.17%) Internet

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 (1.69%) CMS
Applications
1 6 (10.17%) Simulink
2 4 (6.78%) Stateflow
3 3 (5.08%) Microsoft Excel
4 2 (3.39%) Microsoft Office
5 1 (1.69%) GNU Octave
Business Applications
1 3 (5.08%) LabWindows
Communications & Networking
1 15 (25.42%) 3GPP
2 14 (23.73%) LTE
3 12 (20.34%) 5G
4 11 (18.64%) Wireless
5 7 (11.86%) NAS
6 6 (10.17%) HTTP
6 6 (10.17%) Internet
6 6 (10.17%) RTP
7 5 (8.47%) VoIP
8 4 (6.78%) DHCP
8 4 (6.78%) IGMP
8 4 (6.78%) PBX
8 4 (6.78%) RTCP
8 4 (6.78%) SNMP
8 4 (6.78%) TCP/IP
8 4 (6.78%) VLAN
8 4 (6.78%) Wireshark
9 3 (5.08%) 4G
9 3 (5.08%) WCDMA
10 2 (3.39%) SpaceWire
Database & Business Intelligence
1 3 (5.08%) Relational Database
2 2 (3.39%) MySQL
2 2 (3.39%) SQL Server
Development Applications
1 7 (11.86%) Rational Rhapsody
2 5 (8.47%) Subversion
2 5 (8.47%) Team Foundation Server
3 4 (6.78%) GDB
3 4 (6.78%) LabVIEW
3 4 (6.78%) Valgrind
3 4 (6.78%) Visual Studio
4 2 (3.39%) ClearCase
4 2 (3.39%) Rational DOORS
5 1 (1.69%) ClearQuest
5 1 (1.69%) Git (software)
5 1 (1.69%) JIRA
5 1 (1.69%) JMeter
5 1 (1.69%) Rational Team Concert
General
1 11 (18.64%) Telecoms
2 6 (10.17%) Aerospace
3 3 (5.08%) Manufacturing
4 1 (1.69%) Avionics
4 1 (1.69%) Electronics
4 1 (1.69%) Retail
Job Titles
1 17 (28.81%) Software Engineer
2 15 (25.42%) Developer
3 10 (16.95%) C Software Engineer
3 10 (16.95%) C/C++ Software Engineer
3 10 (16.95%) C++ Software Engineer
4 7 (11.86%) Embedded Engineer
5 6 (10.17%) Design Engineer
6 5 (8.47%) C Developer
6 5 (8.47%) Software Developer
6 5 (8.47%) Software Test Engineer
6 5 (8.47%) Test Engineer
7 4 (6.78%) Software Design Engineer
7 4 (6.78%) VoIP Developer
8 3 (5.08%) Analyst
8 3 (5.08%) Embedded Software Engineer
8 3 (5.08%) Software Validation Engineer
8 3 (5.08%) Test Analyst
8 3 (5.08%) Validation Engineer
9 2 (3.39%) Microsoft Engineer
9 2 (3.39%) OAT Analyst
Libraries, Frameworks & Software Standards
1 4 (6.78%) FreeSWITCH
1 4 (6.78%) XML
2 1 (1.69%) JSF
Miscellaneous
1 6 (10.17%) Algorithms
2 2 (3.39%) Field-Programmable Gate Array
2 2 (3.39%) HP Storage
2 2 (3.39%) Self-Motivation
2 2 (3.39%) VHDL
3 1 (1.69%) Analytical Skills
3 1 (1.69%) Data Centre
3 1 (1.69%) Device Driver
3 1 (1.69%) Embedded Systems
3 1 (1.69%) Private Cloud
Operating Systems
1 19 (32.20%) Linux
2 7 (11.86%) Windows
3 2 (3.39%) CentOS
3 2 (3.39%) Red Hat Enterprise Linux
3 2 (3.39%) VxWorks
3 2 (3.39%) Windows Server
4 1 (1.69%) Unix
Processes & Methodologies
1 32 (54.24%) Software Engineering
2 12 (20.34%) Agile Software Development
3 11 (18.64%) Embedded Software Development
4 10 (16.95%) UML
5 9 (15.25%) Signal Processing
5 9 (15.25%) Validation
6 6 (10.17%) Feature Driven Development
6 6 (10.17%) Mathematics
6 6 (10.17%) Problem-Solving
6 6 (10.17%) TDD
7 5 (8.47%) Scrum
8 4 (6.78%) Digital Signal Processing
8 4 (6.78%) Integration Testing
8 4 (6.78%) Mathematical Modelling
8 4 (6.78%) OO
9 3 (5.08%) Component Testing
9 3 (5.08%) Operational Acceptance Testing
9 3 (5.08%) SDLC
10 2 (3.39%) High Availability
10 2 (3.39%) Infrastructure Engineering
Programming Languages
1 36 (61.02%) C++
2 19 (32.20%) Embedded C
3 12 (20.34%) Embedded C++
4 9 (15.25%) MATLAB
5 8 (13.56%) Java
6 5 (8.47%) Python
7 4 (6.78%) Assembly Language
7 4 (6.78%) Perl
8 3 (5.08%) Bash Shell
8 3 (5.08%) PL/SQL
8 3 (5.08%) R
8 3 (5.08%) SQL
8 3 (5.08%) VB
9 1 (1.69%) C#
9 1 (1.69%) Tcl
9 1 (1.69%) VBA
Qualifications
1 13 (22.03%) Security Cleared
2 9 (15.25%) SC Cleared
3 7 (11.86%) Degree
4 2 (3.39%) DV Cleared
4 2 (3.39%) ISTQB
4 2 (3.39%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 1 (1.69%) MISRA
System Software
1 4 (6.78%) Hyper-V
1 4 (6.78%) KVM
1 4 (6.78%) VirtualBox
2 2 (3.39%) Active Directory
Systems Management
1 3 (5.08%) HP ALM
1 3 (5.08%) HP Quality Center
2 2 (3.39%) SELinux
Vendors
1 5 (8.47%) HP
2 4 (6.78%) MathWorks
3 2 (3.39%) Cisco
3 2 (3.39%) Microsoft
3 2 (3.39%) Red Hat
3 2 (3.39%) VMware
4 1 (1.69%) Perforce
4 1 (1.69%) Xilinx