Period
to 16 January 2021

The following table provides summary statistics for contract job vacancies advertised in 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 16 January 2021 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
England > London
6 months to
16 Jan 2021
Same period 2020 Same period 2019
Rank 146 215 221
Rank change year-on-year +69 +6 -21
Contract jobs citing C 310 368 554
As % of all contract jobs advertised in London 1.79% 1.21% 1.25%
As % of the Programming Languages category 3.67% 2.59% 2.49%
Number of daily rates quoted 252 270 407
Median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% -4.76%
10th Percentile £308 £375 £325
90th Percentile £775 £754 £693
England median daily rate £475 £450 £450
% change year-on-year +5.56% - -3.23%
Number of hourly rates quoted 16 13 15
Median hourly rate £40.00 £50.00 £35.00
Median hourly rate % change year-on-year -20.00% +42.86% -17.65%
10th Percentile £25.96 £28.20 £18.70
90th Percentile £78.38 £62.50 £48.25
England median hourly rate £42.50 £46.00 £42.50
% change year-on-year -7.61% +8.24% +3.66%

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 London with a requirement for coding skills.

All Programming Languages
London
Contract vacancies with a requirement for coding skills 8,436 14,185 22,251
As % of all contract IT jobs advertised in London 48.81% 46.69% 50.08%
Number of daily rates quoted 6,172 10,666 17,021
Median daily rate £525 £525 £525
10th Percentile £350 £369 £363
90th Percentile £700 £694 £675
England median daily rate £483 £485 £475
% change year-on-year -0.52% +2.11% -
Number of hourly rates quoted 54 100 98
Median hourly rate £39.50 £45.25 £36.88
Median hourly rate % change year-on-year -12.71% +22.70% +29.40%
10th Percentile £21.48 £16.48 £18.70
90th Percentile £70.28 £55.05 £53.75
Median hourly rate £42.50 £44.00 £42.50
% change year-on-year -3.41% +3.53% +6.25%

C
Job Vacancy Trend in London

Job postings citing C as a proportion of all IT jobs advertised in London.

Job vacancy trend for C in London

C
Contractor Daily Rate Trend in London

3-month moving average daily rate quoted in jobs citing C in London.

Daily rate trend for C in London

C
Daily Rate Histogram in London

Daily rate distribution for jobs citing C in London over the 6 months to 16 January 2021.

Daily rate histogram for C in London

C
Contractor Hourly Rate Trend in London

3-month moving average hourly rates quoted in jobs citing C in London.

Hourly rate trend for C in London

C
Hourly Rate Histogram in London

Hourly rate distribution of jobs citing C in London over the 6 months to 16 January 2021.

Hourly rate histogram for C in London

C
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing C within the London region over the 6 months to 16 January 2021. 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
Central London +66 27 £525 +5.00% 34
West London +10 11 £450 - 16
South London +36 4 £523 +16.11% 5
East London +34 4 £463 +15.63% 17
North London - 2 £563 - 2
C
England

For the 6 months to 16 January 2021, 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 London region with a requirement for C.

1 99 (31.94%) Agile Software Development
2 91 (29.35%) Finance
3 82 (26.45%) Python
4 75 (24.19%) C++
5 57 (18.39%) Security Cleared
6 54 (17.42%) Java
6 54 (17.42%) Linux
7 46 (14.84%) Migration
8 42 (13.55%) AWS
9 41 (13.23%) SQL
10 40 (12.90%) Azure
11 37 (11.94%) SC Cleared
11 37 (11.94%) Software Engineering
12 36 (11.61%) Windows
13 30 (9.68%) Stakeholder Management
13 30 (9.68%) Scrum
13 30 (9.68%) Telecoms
13 30 (9.68%) Git (software)
14 29 (9.35%) Web Services
15 28 (9.03%) DevOps
16 27 (8.71%) DV Cleared
17 26 (8.39%) Oracle
17 26 (8.39%) Problem-Solving
18 25 (8.06%) Project Delivery
18 25 (8.06%) Microsoft
19 24 (7.74%) TDD
20 23 (7.42%) JavaScript
21 21 (6.77%) GCP
22 20 (6.45%) SDLC
22 20 (6.45%) SQL Server

C
Co-occurring IT Skills in 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 7 (2.26%) ArcGIS
2 6 (1.94%) CMS
3 4 (1.29%) Apache
3 4 (1.29%) Confluence
4 3 (0.97%) Elasticsearch
5 2 (0.65%) Apache Airflow
5 2 (0.65%) Exchange Server 2013
5 2 (0.65%) MS Exchange
5 2 (0.65%) nginx
5 2 (0.65%) OpenStack
5 2 (0.65%) Oracle SOA Suite
5 2 (0.65%) SAS
5 2 (0.65%) WebLogic
6 1 (0.32%) Exchange Server 2007
6 1 (0.32%) Exchange Server 2010
6 1 (0.32%) JBoss
Applications
1 10 (3.23%) Microsoft Office
2 7 (2.26%) Photoshop
3 6 (1.94%) Microsoft Excel
4 5 (1.61%) Microsoft PowerPoint
5 3 (0.97%) Spreadsheet
6 1 (0.32%) Microsoft Project
Business Applications
1 8 (2.58%) ION MarketView
2 5 (1.61%) SAP Hybris
3 4 (1.29%) SAP CO
3 4 (1.29%) SAP FI
3 4 (1.29%) SAP FI/CO
4 3 (0.97%) Lorenzo
5 2 (0.65%) Dynamics CRM
6 1 (0.32%) Dynamics AX
6 1 (0.32%) Dynamics GP
6 1 (0.32%) Dynamics NAV
6 1 (0.32%) Oracle ERP
6 1 (0.32%) Oracle Retail
6 1 (0.32%) Salesforce.com CRM
6 1 (0.32%) SAP S/4HANA
6 1 (0.32%) SAP SD
Cloud Services
1 42 (13.55%) AWS
2 40 (12.90%) Azure
3 21 (6.77%) GCP
4 6 (1.94%) Amazon ElastiCache
4 6 (1.94%) GitHub
4 6 (1.94%) Power Platform
5 5 (1.61%) AWS CloudFormation
5 5 (1.61%) Serverless
6 4 (1.29%) IaaS
6 4 (1.29%) SaaS
7 3 (0.97%) AWS Lambda
7 3 (0.97%) Office 365
7 3 (0.97%) PaaS
8 2 (0.65%) Amazon EKS
8 2 (0.65%) Azure Active Directory
8 2 (0.65%) Dynamics 365
9 1 (0.32%) Amazon ECS
9 1 (0.32%) Apigee
9 1 (0.32%) OpenShift
9 1 (0.32%) Virtual Private Cloud
Communications & Networking
1 19 (6.13%) Wi-Fi
2 15 (4.84%) TCP/IP
3 14 (4.52%) 2G
3 14 (4.52%) 5G
3 14 (4.52%) GSM
3 14 (4.52%) MVNO
3 14 (4.52%) Packet Switching
4 11 (3.55%) DNS
4 11 (3.55%) WAN
5 10 (3.23%) HTTP
5 10 (3.23%) LAN
6 9 (2.90%) Firewall
7 7 (2.26%) DHCP
7 7 (2.26%) Network Security
8 6 (1.94%) FTP
9 5 (1.61%) DVB
9 5 (1.61%) Ethernet
9 5 (1.61%) Internet
9 5 (1.61%) IPv4
9 5 (1.61%) IPv6
Database & Business Intelligence
1 20 (6.45%) SQL Server
2 8 (2.58%) PostgreSQL
3 6 (1.94%) Amazon RDS
4 5 (1.61%) Data Warehouse
4 5 (1.61%) Power BI
5 4 (1.29%) Electronic Patient Records
5 4 (1.29%) GIS
5 4 (1.29%) MySQL
5 4 (1.29%) Qlik Sense
5 4 (1.29%) Redis
6 3 (0.97%) Pentaho
6 3 (0.97%) QlikView
6 3 (0.97%) SQL Server 2008
6 3 (0.97%) SQL Server Integration Services
7 2 (0.65%) Amazon Athena
7 2 (0.65%) Amazon DynamoDB
7 2 (0.65%) Amazon Redshift
7 2 (0.65%) NoSQL
7 2 (0.65%) Oracle Database
7 2 (0.65%) SAP BW
Development Applications
1 30 (9.68%) Git (software)
2 17 (5.48%) JIRA
3 8 (2.58%) GDB
3 8 (2.58%) Jenkins
4 6 (1.94%) CircleCI
5 5 (1.61%) TeamCity
6 4 (1.29%) git-flow
6 4 (1.29%) GitLab
6 4 (1.29%) GNU Toolchain
6 4 (1.29%) Grunt
6 4 (1.29%) gulp
6 4 (1.29%) webpack
7 3 (0.97%) JMeter
7 3 (0.97%) LoadRunner
7 3 (0.97%) Xcode
8 2 (0.65%) Bitbucket
8 2 (0.65%) CA Gen
8 2 (0.65%) Gerrit
8 2 (0.65%) Subversion
8 2 (0.65%) Visual Studio
General
1 91 (29.35%) Finance
2 30 (9.68%) Telecoms
3 18 (5.81%) Banking
3 18 (5.81%) Public Sector
4 13 (4.19%) Investment Banking
5 8 (2.58%) Manufacturing
6 7 (2.26%) Electronics
6 7 (2.26%) Front Office
6 7 (2.26%) Games
6 7 (2.26%) Marketing
7 6 (1.94%) Retail
8 4 (1.29%) Back Office
8 4 (1.29%) Law
9 3 (0.97%) Aerospace
9 3 (0.97%) Legal
9 3 (0.97%) Multimedia
10 2 (0.65%) Billing
10 2 (0.65%) Housing Association
10 2 (0.65%) Retail Banking
11 1 (0.32%) Retail Finance
Job Titles
1 83 (26.77%) Developer
2 27 (8.71%) Project Manager
3 23 (7.42%) Software Engineer
4 21 (6.77%) Architect
5 20 (6.45%) Analyst
6 14 (4.52%) C++ Developer
7 13 (4.19%) Business Analyst
7 13 (4.19%) Java Developer
8 12 (3.87%) C++ Software Engineer
8 12 (3.87%) Consultant
8 12 (3.87%) Python Developer
8 12 (3.87%) Python Engineer
9 11 (3.55%) C Software Engineer
10 10 (3.23%) C/C++ Software Engineer
10 10 (3.23%) Embedded Engineer
10 10 (3.23%) Lead Developer
10 10 (3.23%) Senior Developer
11 9 (2.90%) Embedded Software Engineer
11 9 (2.90%) Infrastructure Engineer
11 9 (2.90%) Technical Project Manager
Libraries, Frameworks & Software Standards
1 29 (9.35%) Web Services
2 16 (5.16%) HTML
3 14 (4.52%) REST
4 13 (4.19%) Node.js
5 12 (3.87%) HTML5
6 9 (2.90%) CSS
6 9 (2.90%) JSON
7 8 (2.58%) JNI
8 7 (2.26%) POSIX
8 7 (2.26%) PyTorch
9 6 (1.94%) .NET
9 6 (1.94%) Celery
9 6 (1.94%) CSS3
9 6 (1.94%) GraphQL
9 6 (1.94%) Kafka
9 6 (1.94%) Middleware
10 5 (1.61%) Natural Language Processing
10 5 (1.61%) OpenID
11 4 (1.29%) Memcached
11 4 (1.29%) WebRTC
Miscellaneous
1 19 (6.13%) Fixed Income
2 17 (5.48%) Greenfield Project
3 16 (5.16%) Credit Derivative
3 16 (5.16%) Derivative
3 16 (5.16%) Hedge funds
4 15 (4.84%) PMI
5 12 (3.87%) Algorithms
6 11 (3.55%) Foreign Exchange (FX)
7 10 (3.23%) Embedded Systems
7 10 (3.23%) Equities
8 9 (2.90%) Self-Motivation
8 9 (2.90%) STB
9 8 (2.58%) Analytical Skills
9 8 (2.58%) Data Centre
10 6 (1.94%) Device Driver
10 6 (1.94%) Social Media
11 5 (1.61%) Digital TV
11 5 (1.61%) Management Information System
11 5 (1.61%) Video Conferencing
11 5 (1.61%) Video\Live Streaming
Operating Systems
1 54 (17.42%) Linux
2 36 (11.61%) Windows
3 19 (6.13%) Windows 10
4 15 (4.84%) Windows Server
4 15 (4.84%) Windows Server 2012
5 14 (4.52%) Android
6 12 (3.87%) Mac OS
7 11 (3.55%) Unix
7 11 (3.55%) Windows 7
7 11 (3.55%) Windows Server 2008
7 11 (3.55%) Windows Server 2016
8 10 (3.23%) Embedded Linux
9 9 (2.90%) Apple iOS
10 7 (2.26%) Windows Server 2019
11 4 (1.29%) OpenWrt
12 3 (0.97%) Debian
13 2 (0.65%) AIX
13 2 (0.65%) Ubuntu
13 2 (0.65%) VMS
14 1 (0.32%) zOS
Processes & Methodologies
1 99 (31.94%) Agile Software Development
2 46 (14.84%) Migration
3 37 (11.94%) Software Engineering
4 30 (9.68%) Scrum
4 30 (9.68%) Stakeholder Management
5 28 (9.03%) DevOps
6 26 (8.39%) Problem-Solving
7 25 (8.06%) Project Delivery
8 24 (7.74%) TDD
9 20 (6.45%) PRINCE2
9 20 (6.45%) SDLC
10 19 (6.13%) Performance Management
11 18 (5.81%) Investment Management
12 17 (5.48%) Asset Management
13 16 (5.16%) Analytics
13 16 (5.16%) Quantitative Analysis
14 15 (4.84%) Business Intelligence
14 15 (4.84%) ITIL
15 14 (4.52%) Continuous Integration
15 14 (4.52%) Data Modelling
Programming Languages
1 82 (26.45%) Python
2 75 (24.19%) C++
3 54 (17.42%) Java
4 41 (13.23%) SQL
5 23 (7.42%) JavaScript
6 19 (6.13%) PowerShell
7 16 (5.16%) R
8 14 (4.52%) Ruby
9 13 (4.19%) Bash Shell
10 10 (3.23%) Shell Script
10 10 (3.23%) VB
11 8 (2.58%) C#
12 7 (2.26%) MATLAB
12 7 (2.26%) Rust
13 6 (1.94%) Apple Swift
13 6 (1.94%) Embedded C
13 6 (1.94%) Objective-C
14 5 (1.61%) Kotlin
15 4 (1.29%) Embedded C++
15 4 (1.29%) Go
Qualifications
1 57 (18.39%) Security Cleared
2 37 (11.94%) SC Cleared
3 27 (8.71%) DV Cleared
4 18 (5.81%) PMI Certification
5 12 (3.87%) Cisco Certification
6 11 (3.55%) Degree
7 7 (2.26%) Microsoft Certification
8 4 (1.29%) A+ Certification
8 4 (1.29%) CCIE
8 4 (1.29%) PhD
8 4 (1.29%) PMP
9 3 (0.97%) CISSP
10 2 (0.65%) (ISC)2 CCSP
10 2 (0.65%) AWS Certification
10 2 (0.65%) CCNA
10 2 (0.65%) Computer Science Degree
10 2 (0.65%) Master's Degree
10 2 (0.65%) RHCE
10 2 (0.65%) VMware Certified Professional (VCP)
11 1 (0.32%) TOGAF Certification
Quality Assurance & Compliance
1 20 (6.45%) QA
2 14 (4.52%) PMBOK
3 8 (2.58%) NCSC
4 4 (1.29%) Data Quality
4 4 (1.29%) JTAG
4 4 (1.29%) SLA
4 4 (1.29%) WCAG
5 2 (0.65%) GDPR
5 2 (0.65%) ISO 8583
5 2 (0.65%) NIST
5 2 (0.65%) PMO
6 1 (0.32%) Cyber Essentials
6 1 (0.32%) Disclosure Scotland
6 1 (0.32%) ISO/IEC 27001
6 1 (0.32%) MISRA
6 1 (0.32%) MISRA C
6 1 (0.32%) NIST 800
System Software
1 11 (3.55%) Docker
2 10 (3.23%) Active Directory
2 10 (3.23%) VMware Infrastructure
3 6 (1.94%) VMware NSX
4 5 (1.61%) Virtual Machines
5 4 (1.29%) NFS
6 3 (0.97%) Ceph
6 3 (0.97%) vSphere
7 2 (0.65%) KVM
7 2 (0.65%) OCFS2
7 2 (0.65%) Oracle RAC
7 2 (0.65%) Postfix
7 2 (0.65%) qmail
7 2 (0.65%) Samba
7 2 (0.65%) Sendmail
7 2 (0.65%) Veritas Volume Manager
7 2 (0.65%) VirtualBox
7 2 (0.65%) VMware ESXi
7 2 (0.65%) Xen
7 2 (0.65%) XenApp
Systems Management
1 18 (5.81%) Kubernetes
2 10 (3.23%) Ansible
3 6 (1.94%) Terraform
4 5 (1.61%) SELinux
5 4 (1.29%) Cisco CUCM
6 3 (0.97%) Hadoop YARN
6 3 (0.97%) MaaS360
6 3 (0.97%) Mesos
6 3 (0.97%) Nessus
6 3 (0.97%) vCenter Server
7 2 (0.65%) Failover Clustering
7 2 (0.65%) Opscode Chef
7 2 (0.65%) Packer
7 2 (0.65%) Puppet
8 1 (0.32%) AirWatch
8 1 (0.32%) HP SiteScope
8 1 (0.32%) Microsoft Clustering
8 1 (0.32%) Microsoft Intune
8 1 (0.32%) SCCM
8 1 (0.32%) vMotion
Vendors
1 26 (8.39%) Oracle
2 25 (8.06%) Microsoft
3 18 (5.81%) Google
3 18 (5.81%) SAP
4 12 (3.87%) Cisco
5 10 (3.23%) VMware
6 8 (2.58%) ION Trading
7 7 (2.26%) ESRI
7 7 (2.26%) Lumension
7 7 (2.26%) Sophos
8 6 (1.94%) Apple
9 5 (1.61%) hybris
9 5 (1.61%) TIBCO
10 4 (1.29%) CA
10 4 (1.29%) HP
10 4 (1.29%) Polycom
10 4 (1.29%) Qualys
10 4 (1.29%) Salesforce.com
10 4 (1.29%) ServiceNow
10 4 (1.29%) Splunk