Period
to 21 April 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 21 April 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
21 Apr 2021
Same period 2020 Same period 2019
Rank 195 202 243
Rank change year-on-year +7 +41 -35
Contract jobs citing C 298 290 492
As % of all contract jobs advertised in London 1.35% 1.25% 1.17%
As % of the Programming Languages category 2.82% 2.61% 2.45%
Number of daily rates quoted 208 195 348
10th Percentile £363 £355 £310
25th Percentile £455 £425 £381
Median daily rate (50th Percentile) £550 £515 £500
Median % change year-on-year +6.80% +3.00% -6.98%
75th Percentile £600 £600 £625
90th Percentile £725 £725 £716
England median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% -5.26%
Number of hourly rates quoted 15 5 7
10th Percentile £14.80 £28.20 £15.42
25th Percentile £25.96 £45.00 £24.98
Median hourly rate £31.00 £51.00 £47.50
Median % change year-on-year -39.22% +7.37% +5.56%
75th Percentile £58.38 £71.25 £50.63
90th Percentile £75.45 £85.50 £53.00
England median hourly rate £42.81 £47.50 £45.00
% change year-on-year -9.87% +5.56% +7.14%

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 10,574 11,116 20,101
As % of all contract IT jobs advertised in London 47.75% 47.82% 47.66%
Number of daily rates quoted 7,894 8,308 15,273
10th Percentile £363 £369 £363
25th Percentile £438 £438 £425
Median daily rate (50th Percentile) £525 £525 £525
75th Percentile £638 £615 £610
90th Percentile £713 £700 £675
England median daily rate £500 £500 £480
% change year-on-year - +4.17% +1.05%
Number of hourly rates quoted 69 81 108
10th Percentile £20.90 £18.25 £18.39
25th Percentile £28.00 £27.00 £21.22
Median hourly rate £44.50 £47.83 £36.00
Median % change year-on-year -6.96% +32.86% +8.27%
75th Percentile £62.00 £61.25 £47.50
90th Percentile £68.07 £69.50 £53.75
England median hourly rate £42.50 £43.50 £42.50
% change year-on-year -2.30% +2.35% +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 21 April 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 21 April 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 21 April 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 +14 24 £525 +5.00% 38
West London +21 12 £525 +23.53% 32
East London +31 11 £465 +16.25% 15
South London +37 1 £525 +31.25% 5
North London +6 1 - - 3
C
England

For the 6 months to 21 April 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 95 (31.88%) Python
2 83 (27.85%) Agile Software Development
3 69 (23.15%) SQL
4 64 (21.48%) C++
4 64 (21.48%) Linux
5 62 (20.81%) Java
5 62 (20.81%) Security Cleared
6 52 (17.45%) Finance
7 49 (16.44%) Software Engineering
8 48 (16.11%) DevOps
9 45 (15.10%) AWS
10 43 (14.43%) Kubernetes
11 39 (13.09%) Analytics
11 39 (13.09%) Problem-Solving
12 37 (12.42%) Oracle
13 35 (11.74%) SC Cleared
14 33 (11.07%) JIRA
14 33 (11.07%) TDD
14 33 (11.07%) Scrum
15 32 (10.74%) Data Modelling
15 32 (10.74%) Azure
16 31 (10.40%) DV Cleared
17 30 (10.07%) Microsoft
18 28 (9.40%) Windows
18 28 (9.40%) Banking
19 27 (9.06%) Git (software)
19 27 (9.06%) Test Automation
19 27 (9.06%) Kafka
20 26 (8.72%) C#
21 25 (8.39%) Business Intelligence

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 14 (4.70%) Confluence
2 9 (3.02%) SharePoint
3 7 (2.35%) ArcGIS
4 4 (1.34%) Oracle SOA Suite
5 2 (0.67%) Apache
5 2 (0.67%) Apache Spark
5 2 (0.67%) Elasticsearch
5 2 (0.67%) Mule
5 2 (0.67%) OpenStack
5 2 (0.67%) SAS
5 2 (0.67%) Tomcat
5 2 (0.67%) WebLogic
6 1 (0.34%) Apache Airflow
6 1 (0.34%) Exchange Server 2007
6 1 (0.34%) Exchange Server 2013
6 1 (0.34%) IIS
6 1 (0.34%) JBoss
6 1 (0.34%) MS Exchange
6 1 (0.34%) Oracle Coherence
6 1 (0.34%) Oracle Service Bus
Applications
1 11 (3.69%) Microsoft Office
2 8 (2.68%) Microsoft Excel
3 7 (2.35%) Photoshop
4 2 (0.67%) Microsoft PowerPoint
4 2 (0.67%) Spreadsheet
5 1 (0.34%) Microsoft Project
5 1 (0.34%) MS Visio
5 1 (0.34%) Simulink
5 1 (0.34%) SOLIDWORKS
Business Applications
1 6 (2.01%) SAP CO
1 6 (2.01%) SAP FI
1 6 (2.01%) SAP FI/CO
2 3 (1.01%) Lorenzo
2 3 (1.01%) SAP Hybris
2 3 (1.01%) SAP S/4HANA
3 2 (0.67%) Oracle Applications
3 2 (0.67%) Primavera
4 1 (0.34%) Dynamics AX
4 1 (0.34%) Dynamics GP
4 1 (0.34%) HealthRoster
4 1 (0.34%) ION MarketView
4 1 (0.34%) Oracle BPM
4 1 (0.34%) Oracle ERP
4 1 (0.34%) SAP Business One
Cloud Services
1 45 (15.10%) AWS
2 32 (10.74%) Azure
3 19 (6.38%) Amazon ElastiCache
4 10 (3.36%) Microsoft 365
5 8 (2.68%) PaaS
6 7 (2.35%) Azure Active Directory
6 7 (2.35%) IaaS
6 7 (2.35%) Power Platform
7 6 (2.01%) SaaS
8 5 (1.68%) GCP
8 5 (1.68%) OpenShift
8 5 (1.68%) Serverless
9 4 (1.34%) AWS CloudFormation
10 3 (1.01%) AWS Lambda
11 2 (0.67%) Amazon ECS
11 2 (0.67%) Azure Synapse Analytics
12 1 (0.34%) Azure Data Factory
12 1 (0.34%) Azure Logic Apps
12 1 (0.34%) Azure Service Bus
12 1 (0.34%) OneDrive
Communications & Networking
1 15 (5.03%) Wi-Fi
2 13 (4.36%) DHCP
2 13 (4.36%) DNS
3 12 (4.03%) FTP
4 9 (3.02%) DECT
4 9 (3.02%) TCP/IP
5 7 (2.35%) UPnP
6 6 (2.01%) Internet
6 6 (2.01%) IPv4
6 6 (2.01%) IPv6
6 6 (2.01%) Multicast
6 6 (2.01%) PPP
7 5 (1.68%) 5G
7 5 (1.68%) SMTP
7 5 (1.68%) Wireless
8 4 (1.34%) 2G
8 4 (1.34%) Broadband
8 4 (1.34%) GSM
8 4 (1.34%) MVNO
8 4 (1.34%) Packet Switching
Database & Business Intelligence
1 20 (6.71%) SQL Server
2 19 (6.38%) Amazon RDS
3 12 (4.03%) PostgreSQL
4 9 (3.02%) MySQL
5 8 (2.68%) GIS
5 8 (2.68%) MongoDB
6 7 (2.35%) Big Data
6 7 (2.35%) Power BI
7 6 (2.01%) Data Warehouse
7 6 (2.01%) Oracle Database
8 5 (1.68%) Oracle ODI
9 4 (1.34%) Electronic Patient Records
10 3 (1.01%) Hadoop
10 3 (1.01%) NoSQL
10 3 (1.01%) Qlik Sense
10 3 (1.01%) Star Schema
11 2 (0.67%) QlikView
11 2 (0.67%) Redis
11 2 (0.67%) SQL Server Integration Services
11 2 (0.67%) Tableau
Development Applications
1 33 (11.07%) JIRA
2 27 (9.06%) Git (software)
3 17 (5.70%) Jenkins
4 14 (4.70%) GDB
5 12 (4.03%) CircleCI
6 10 (3.36%) Cucumber
6 10 (3.36%) GitLab
6 10 (3.36%) Selenium
7 8 (2.68%) Xcode
8 7 (2.35%) ProC
9 5 (1.68%) fastlane
9 5 (1.68%) Pivotal Tracker
9 5 (1.68%) Travis CI
10 3 (1.01%) Eclipse
10 3 (1.01%) JMeter
10 3 (1.01%) LoadRunner
10 3 (1.01%) Maven
10 3 (1.01%) Subversion
10 3 (1.01%) TestRail
11 2 (0.67%) JUnit
General
1 52 (17.45%) Finance
2 28 (9.40%) Banking
3 22 (7.38%) Investment Banking
4 16 (5.37%) Telecoms
5 9 (3.02%) Back Office
5 9 (3.02%) Games
6 7 (2.35%) Retail
7 6 (2.01%) Aerospace
7 6 (2.01%) Law
7 6 (2.01%) Legal
8 5 (1.68%) Local Government
9 4 (1.34%) Automotive
9 4 (1.34%) Front Office
9 4 (1.34%) Manufacturing
9 4 (1.34%) Marketing
9 4 (1.34%) Public Sector
10 3 (1.01%) Electronics
10 3 (1.01%) Pharmaceutical
11 2 (0.67%) Housing Association
11 2 (0.67%) Police
Job Titles
1 84 (28.19%) Developer
2 26 (8.72%) Architect
3 25 (8.39%) Software Engineer
4 23 (7.72%) Analyst
4 23 (7.72%) Data Engineer
5 20 (6.71%) Python Engineer
6 19 (6.38%) C Developer
7 14 (4.70%) Agile Developer
7 14 (4.70%) Infrastructure Engineer
7 14 (4.70%) Senior Developer
8 13 (4.36%) C++ Developer
8 13 (4.36%) Embedded Engineer
8 13 (4.36%) Java Developer
9 12 (4.03%) DevOps Engineer
10 11 (3.69%) Embedded Software Engineer
10 11 (3.69%) Project Manager
11 9 (3.02%) Agile Java Developer
11 9 (3.02%) Change Manager
11 9 (3.02%) Consultant
12 8 (2.68%) iOS Developer
Libraries, Frameworks & Software Standards
1 27 (9.06%) Kafka
2 19 (6.38%) Celery
3 17 (5.70%) Spring
4 15 (5.03%) HTML
5 14 (4.70%) .NET
6 12 (4.03%) REST
7 11 (3.69%) JSON
7 11 (3.69%) Middleware
7 11 (3.69%) RESTful
8 10 (3.36%) Hibernate
8 10 (3.36%) HTML5
8 10 (3.36%) J2SE
8 10 (3.36%) React
8 10 (3.36%) XML
9 8 (2.68%) AngularJS
10 7 (2.35%) CSS
10 7 (2.35%) Gherkin
10 7 (2.35%) GraphQL
10 7 (2.35%) RxSwift
10 7 (2.35%) Web Services
Miscellaneous
1 18 (6.04%) Embedded Systems
2 17 (5.70%) Analytical Skills
3 13 (4.36%) Algorithms
4 12 (4.03%) Foreign Exchange (FX)
5 11 (3.69%) Virtual Team
6 8 (2.68%) User Experience
7 7 (2.35%) Data Structures
7 7 (2.35%) Social Media
8 6 (2.01%) Cloud Native
8 6 (2.01%) NHS
9 4 (1.34%) CMDB
9 4 (1.34%) Data Centre
9 4 (1.34%) Device Driver
9 4 (1.34%) Fixed Income
9 4 (1.34%) Mainframe
9 4 (1.34%) Organisational Skills
9 4 (1.34%) Self-Motivation
9 4 (1.34%) SystemC
9 4 (1.34%) Video\Live Streaming
10 3 (1.01%) Equities
Operating Systems
1 64 (21.48%) Linux
2 28 (9.40%) Windows
3 19 (6.38%) Unix
3 19 (6.38%) Windows Server 2012
4 16 (5.37%) Windows Server
5 14 (4.70%) Windows Server 2016
6 12 (4.03%) Android
6 12 (4.03%) Apple iOS
6 12 (4.03%) Windows Server 2008
7 10 (3.36%) OpenWrt
8 9 (3.02%) Windows 10
9 8 (2.68%) Windows 7
10 7 (2.35%) Windows Server 2019
11 5 (1.68%) Embedded Linux
12 2 (0.67%) CentOS
12 2 (0.67%) Mac OS
12 2 (0.67%) Red Hat Enterprise Linux
12 2 (0.67%) VMS
13 1 (0.34%) Ubuntu
13 1 (0.34%) zOS
Processes & Methodologies
1 83 (27.85%) Agile Software Development
2 49 (16.44%) Software Engineering
3 48 (16.11%) DevOps
4 39 (13.09%) Analytics
4 39 (13.09%) Problem-Solving
5 33 (11.07%) Scrum
5 33 (11.07%) TDD
6 32 (10.74%) Data Modelling
7 27 (9.06%) Test Automation
8 25 (8.39%) Business Intelligence
9 23 (7.72%) Continuous Integration
10 22 (7.38%) Migration
11 20 (6.71%) Unit Testing
12 19 (6.38%) Infrastructure Engineering
12 19 (6.38%) Open Source
12 19 (6.38%) Stakeholder Management
13 18 (6.04%) Project Management
14 17 (5.70%) Kanban
15 16 (5.37%) Microservices
15 16 (5.37%) Test Strategy
Programming Languages
1 95 (31.88%) Python
2 69 (23.15%) SQL
3 64 (21.48%) C++
4 62 (20.81%) Java
5 26 (8.72%) C#
6 21 (7.05%) PowerShell
7 20 (6.71%) Bash Shell
8 16 (5.37%) JavaScript
9 15 (5.03%) Shell Script
10 12 (4.03%) PL/SQL
11 11 (3.69%) Objective-C
12 10 (3.36%) Apple Swift
13 9 (3.02%) VB
14 8 (2.68%) Go
14 8 (2.68%) Ruby
15 7 (2.35%) Embedded C
15 7 (2.35%) Perl
15 7 (2.35%) Scala
16 5 (1.68%) Kotlin
17 4 (1.34%) Rust
Qualifications
1 62 (20.81%) Security Cleared
2 35 (11.74%) SC Cleared
3 31 (10.40%) DV Cleared
4 23 (7.72%) Degree
5 9 (3.02%) Microsoft Certification
6 8 (2.68%) Cisco Certification
7 6 (2.01%) PMI Certification
8 5 (1.68%) A+ Certification
9 4 (1.34%) PMP
10 2 (0.67%) ACCA
10 2 (0.67%) CIMA
10 2 (0.67%) Computer Science Degree
10 2 (0.67%) PRINCE2 Practitioner
11 1 (0.34%) (ISC)2 CCSP
11 1 (0.34%) Chartered Engineer
11 1 (0.34%) CISA
11 1 (0.34%) CLAS
11 1 (0.34%) Master's Degree
11 1 (0.34%) Numerate Degree
11 1 (0.34%) RHCSA
Quality Assurance & Compliance
1 10 (3.36%) QA
2 8 (2.68%) JTAG
3 4 (1.34%) GDPR
3 4 (1.34%) SLA
4 3 (1.01%) PMO
5 2 (0.67%) Data Quality
5 2 (0.67%) NCSC
5 2 (0.67%) PMBOK
6 1 (0.34%) GRC
6 1 (0.34%) HL7
6 1 (0.34%) MISRA
6 1 (0.34%) MISRA C
6 1 (0.34%) WCAG
System Software
1 23 (7.72%) Docker
2 17 (5.70%) Active Directory
3 13 (4.36%) VMware Infrastructure
4 8 (2.68%) VMware NSX
5 4 (1.34%) Ceph
5 4 (1.34%) NFS
6 3 (1.01%) Firmware
7 2 (0.67%) KVM
7 2 (0.67%) OCFS2
7 2 (0.67%) Oracle RAC
7 2 (0.67%) Postfix
7 2 (0.67%) qmail
7 2 (0.67%) Samba
7 2 (0.67%) Sendmail
7 2 (0.67%) Veritas Cluster Server
7 2 (0.67%) Veritas Volume Manager
7 2 (0.67%) vSphere
7 2 (0.67%) Xen
7 2 (0.67%) XenApp
8 1 (0.34%) VMware ESXi
Systems Management
1 43 (14.43%) Kubernetes
2 15 (5.03%) Ansible
3 13 (4.36%) Terraform
4 7 (2.35%) HP Quality Center
5 5 (1.68%) SELinux
6 3 (1.01%) Hadoop YARN
6 3 (1.01%) Mesos
6 3 (1.01%) MIIS
6 3 (1.01%) Prometheus
6 3 (1.01%) vCenter Server
7 2 (0.67%) Failover Clustering
7 2 (0.67%) Istio
7 2 (0.67%) linkerd
7 2 (0.67%) Opscode Chef
8 1 (0.34%) Kibana
8 1 (0.34%) Microsoft Intune
8 1 (0.34%) Nessus
8 1 (0.34%) Puppet
8 1 (0.34%) Salt
8 1 (0.34%) SCCM
Vendors
1 37 (12.42%) Oracle
2 30 (10.07%) Microsoft
3 16 (5.37%) HP
4 15 (5.03%) SAP
5 13 (4.36%) VMware
6 9 (3.02%) Cisco
7 7 (2.35%) ESRI
7 7 (2.35%) Lumension
7 7 (2.35%) Sophos
8 6 (2.01%) IBM
8 6 (2.01%) SolarWinds
9 5 (1.68%) Atlassian
10 3 (1.01%) Citrix
10 3 (1.01%) Databricks
10 3 (1.01%) Green Hills
10 3 (1.01%) hybris
10 3 (1.01%) Ivanti
10 3 (1.01%) QNX
10 3 (1.01%) Red Hat
10 3 (1.01%) Splunk