Period
to 18 December 2018

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 18 December 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
Central London > City of London
6 months to
18 Dec 2018
Same period 2017 Same period 2016
Rank 159 186 141
Rank change year-on-year +27 -45 +34
Contract jobs citing C 98 70 103
As % of all contract IT jobs advertised in the City of London 1.38% 0.97% 1.59%
As % of the Programming Languages category 2.53% 1.85% 3.14%
Number of daily rates quoted 83 56 91
City of London median daily rate £525 £525 £550
Median daily rate % change year-on-year - -4.55% +22.22%
10th Percentile £425 £386 £413
90th Percentile £775 £725 £625
Central London median daily rate £525 £525 £525
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate £18.70 £42.50 -
% change year-on-year -56.00% - -

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 the City of London with a requirement for coding skills.

All Programming Languages
City of London
Contract vacancies with a requirement for coding skills 3,869 3,792 3,276
As % of all contract IT jobs advertised in the City of London 54.51% 52.70% 50.48%
Number of daily rates quoted 3,206 3,175 2,750
City of London median daily rate £525 £525 £475
Median daily rate % change year-on-year - +10.53% -
10th Percentile £388 £363 £325
90th Percentile £675 £688 £650
Central London median daily rate £525 £513 £475
% change year-on-year +2.44% +7.89% -
Number of hourly rates quoted 8 11 10
City of London median hourly rate £37.09 £24.49 £27.50
Median hourly rate % change year-on-year +51.48% -10.96% +8.16%
10th Percentile £16.10 £13.35 £16.06
90th Percentile £74.46 £30.00 £55.19
Central London median hourly rate £37.09 £25.79 £27.50
% change year-on-year +43.83% -6.23% +8.16%

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 18 December 2018.

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 18 December 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 City of London region with a requirement for C.

1 38 (38.78%) C#
2 34 (34.69%) Finance
3 32 (32.65%) SQL
4 30 (30.61%) Microsoft Azure
5 27 (27.55%) C++
6 26 (26.53%) .NET
6 26 (26.53%) TDD
7 24 (24.49%) Microservices
8 23 (23.47%) Python
9 21 (21.43%) Java
9 21 (21.43%) Agile Software Development
9 21 (21.43%) AngularJS
9 21 (21.43%) .NET Core
9 21 (21.43%) Greenfield Project
10 18 (18.37%) Fintech
10 18 (18.37%) JavaScript
11 17 (17.35%) Cosmos DB
11 17 (17.35%) React
12 16 (16.33%) Angular 2
13 14 (14.29%) Azure SQL Database
14 13 (13.27%) SQL Server
15 12 (12.24%) Windows
15 12 (12.24%) Amazon AWS
16 11 (11.22%) Artificial Intelligence
17 10 (10.20%) Cryptography
17 10 (10.20%) Linux
17 10 (10.20%) Git (software)
17 10 (10.20%) Analytical Skills
17 10 (10.20%) ASP.NET Web API
17 10 (10.20%) Jenkins

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 3 (3.06%) Cloud Foundry
1 3 (3.06%) Elasticsearch
1 3 (3.06%) Skype for Business
2 2 (2.04%) Apache Solr
2 2 (2.04%) Apache Spark
2 2 (2.04%) Confluence
2 2 (2.04%) WebSphere
3 1 (1.02%) BizTalk Server
3 1 (1.02%) CMS
3 1 (1.02%) Ethereum
Applications
1 1 (1.02%) Microsoft Office
1 1 (1.02%) Microsoft Project
1 1 (1.02%) MS Visio
Business Applications
1 2 (2.04%) Distributed Ledger
2 1 (1.02%) Oracle BPM
2 1 (1.02%) Oracle Cash Management
2 1 (1.02%) Salesforce.com CRM
2 1 (1.02%) Summit
Cloud Services
1 30 (30.61%) Microsoft Azure
2 12 (12.24%) Amazon AWS
3 8 (8.16%) Serverless
4 3 (3.06%) Office 365
5 2 (2.04%) AWS Lambda
6 1 (1.02%) Akamai
6 1 (1.02%) AWS CloudFormation
6 1 (1.02%) CloudFront
6 1 (1.02%) Fastly
6 1 (1.02%) Google Cloud Platform
6 1 (1.02%) Google Play
Communications & Networking
1 4 (4.08%) SAN
2 3 (3.06%) Internet
2 3 (3.06%) Skype
2 3 (3.06%) SSL
3 2 (2.04%) DHCP
3 2 (2.04%) DNS
3 2 (2.04%) LAN
3 2 (2.04%) Network Security
3 2 (2.04%) TCP/IP
3 2 (2.04%) WAN
3 2 (2.04%) WebEx
4 1 (1.02%) AMQP
4 1 (1.02%) DMZ
4 1 (1.02%) Ethernet
4 1 (1.02%) FTP
4 1 (1.02%) IPFS
4 1 (1.02%) Junos
4 1 (1.02%) Multicast
4 1 (1.02%) Spanning Tree
4 1 (1.02%) VPN
Database & Business Intelligence
1 17 (17.35%) Cosmos DB
2 14 (14.29%) Azure SQL Database
3 13 (13.27%) SQL Server
4 9 (9.18%) Blockchain
5 7 (7.14%) Redis
6 6 (6.12%) Data Lake
7 5 (5.10%) NoSQL
8 3 (3.06%) DB2
8 3 (3.06%) KDB
8 3 (3.06%) Kdb+
8 3 (3.06%) MongoDB
8 3 (3.06%) MySQL
8 3 (3.06%) Relational Database
9 2 (2.04%) Apache Cassandra
9 2 (2.04%) HBase
9 2 (2.04%) Riak
9 2 (2.04%) SQL Server 2012
9 2 (2.04%) SQL Server Integration Services
10 1 (1.02%) Big Data
10 1 (1.02%) SQL Server 2016
Development Applications
1 10 (10.20%) Git (software)
1 10 (10.20%) Jenkins
2 6 (6.12%) Maven
3 4 (4.08%) JIRA
4 3 (3.06%) Pivotal Tracker
4 3 (3.06%) Robot Framework
4 3 (3.06%) Xcode
5 2 (2.04%) Gradle
5 2 (2.04%) Jasmine
5 2 (2.04%) jMock
5 2 (2.04%) JUnit
5 2 (2.04%) Mockito
5 2 (2.04%) Selenium
6 1 (1.02%) Ant
6 1 (1.02%) Metasploit
6 1 (1.02%) NUnit
6 1 (1.02%) ReSharper
6 1 (1.02%) SpecFlow
6 1 (1.02%) TeamCity
6 1 (1.02%) Toad
General
1 34 (34.69%) Finance
2 9 (9.18%) Banking
3 3 (3.06%) Automotive
4 2 (2.04%) Advertising
4 2 (2.04%) Prime Brokerage
4 2 (2.04%) Publishing
5 1 (1.02%) Financial Institution
5 1 (1.02%) Front Office
5 1 (1.02%) International Banking
5 1 (1.02%) Investment Banking
5 1 (1.02%) Law
5 1 (1.02%) Legal
5 1 (1.02%) Retail
5 1 (1.02%) Telecoms
Job Titles
1 36 (36.73%) Developer
2 16 (16.33%) .NET Developer
2 16 (16.33%) Analyst
3 12 (12.24%) Architect
3 12 (12.24%) C Developer
4 9 (9.18%) Angular Developer
5 8 (8.16%) Applications Support
5 8 (8.16%) Applications Support Analyst
5 8 (8.16%) Azure Developer
6 7 (7.14%) Security Architect
6 7 (7.14%) Systems Support
6 7 (7.14%) Systems Support Analyst
7 6 (6.12%) C# Developer
8 5 (5.10%) C# .NET Developer
8 5 (5.10%) Project Manager
9 4 (4.08%) Business Analyst
9 4 (4.08%) IT Manager
9 4 (4.08%) IT Project Manager
9 4 (4.08%) Java Developer
9 4 (4.08%) React Developer
Libraries, Frameworks & Software Standards
1 26 (26.53%) .NET
2 21 (21.43%) .NET Core
2 21 (21.43%) AngularJS
3 17 (17.35%) React
4 16 (16.33%) Angular 2
5 10 (10.20%) ASP.NET Web API
6 8 (8.16%) .NET Framework
6 8 (8.16%) Entity Framework
7 6 (6.12%) REST
8 5 (5.10%) FIX Protocol
8 5 (5.10%) Smart Contracts
8 5 (5.10%) XML
9 4 (4.08%) JSON
9 4 (4.08%) Middleware
10 3 (3.06%) CSS
10 3 (3.06%) HTML
10 3 (3.06%) JMS
10 3 (3.06%) Rendezvous
10 3 (3.06%) RESTful
10 3 (3.06%) Velocity
Miscellaneous
1 21 (21.43%) Greenfield Project
2 18 (18.37%) Fintech
3 10 (10.20%) Analytical Skills
4 8 (8.16%) Derivative
5 7 (7.14%) Algorithms
5 7 (7.14%) Digital Currency
5 7 (7.14%) Reinsurance
6 6 (6.12%) User Experience
7 4 (4.08%) Equities
7 4 (4.08%) Fixed Income
7 4 (4.08%) PMI
8 3 (3.06%) Self-Motivation
8 3 (3.06%) SWIFT
9 2 (2.04%) Bitcoin
9 2 (2.04%) CCTV
9 2 (2.04%) Data Structures
9 2 (2.04%) Enterprise Software
9 2 (2.04%) Foreign Exchange (FX)
9 2 (2.04%) OTC Derivatives
10 1 (1.02%) 3D Graphics
Operating Systems
1 12 (12.24%) Windows
2 10 (10.20%) Linux
3 6 (6.12%) Unix
4 5 (5.10%) Apple iOS
4 5 (5.10%) Windows Server
4 5 (5.10%) Windows Server 2008
5 4 (4.08%) Windows 10
6 3 (3.06%) Android
7 1 (1.02%) AIX
7 1 (1.02%) Kali Linux
7 1 (1.02%) Red Hat Enterprise Linux
7 1 (1.02%) Windows Server 2012
Processes & Methodologies
1 26 (26.53%) TDD
2 24 (24.49%) Microservices
3 21 (21.43%) Agile Software Development
4 11 (11.22%) Artificial Intelligence
5 10 (10.20%) Cryptography
6 9 (9.18%) Problem-Solving
6 9 (9.18%) User Acceptance Testing
7 8 (8.16%) Cybersecurity
7 8 (8.16%) Regression Testing
8 7 (7.14%) Computer Science
8 7 (7.14%) Test Automation
9 6 (6.12%) ETL
9 6 (6.12%) MVC
9 6 (6.12%) OO
10 5 (5.10%) Defensive Programming
10 5 (5.10%) ITIL
10 5 (5.10%) Multithreading
10 5 (5.10%) Project Management
10 5 (5.10%) SOA
10 5 (5.10%) Unit Testing
Programming Languages
1 38 (38.78%) C#
2 32 (32.65%) SQL
3 27 (27.55%) C++
4 23 (23.47%) Python
5 21 (21.43%) Java
6 18 (18.37%) JavaScript
7 9 (9.18%) Go
8 8 (8.16%) Kotlin
9 6 (6.12%) Objective-C
10 4 (4.08%) Apple Swift
10 4 (4.08%) PowerShell
11 3 (3.06%) Perl
11 3 (3.06%) Ruby
12 2 (2.04%) Clojure
12 2 (2.04%) Groovy
12 2 (2.04%) PHP
12 2 (2.04%) Scala
12 2 (2.04%) Shell Script
12 2 (2.04%) Solidity
12 2 (2.04%) TypeScript
Qualifications
1 5 (5.10%) Degree
1 5 (5.10%) Microsoft Certification
2 4 (4.08%) PMI Certification
3 3 (3.06%) MCSE
4 2 (2.04%) CCNA
4 2 (2.04%) CCNP
4 2 (2.04%) Cisco Certification
4 2 (2.04%) Computer Science Degree
4 2 (2.04%) CREST Certified
5 1 (1.02%) CEH
5 1 (1.02%) ISTQB
5 1 (1.02%) JNCIP
5 1 (1.02%) MOS
5 1 (1.02%) OSCP
5 1 (1.02%) SC Cleared
5 1 (1.02%) Security Cleared
5 1 (1.02%) Sun Certification
Quality Assurance & Compliance
1 8 (8.16%) QA
2 2 (2.04%) HIPAA
2 2 (2.04%) Sarbanes-Oxley
2 2 (2.04%) SEPA
3 1 (1.02%) MiFID
System Software
1 4 (4.08%) VMware Infrastructure
2 3 (3.06%) VMware ESXi
3 2 (2.04%) Active Directory
3 2 (2.04%) Docker
4 1 (1.02%) Microsoft App-V
4 1 (1.02%) Virtual Desktop
4 1 (1.02%) XenApp
4 1 (1.02%) XenDesktop
Systems Management
1 5 (5.10%) Kubernetes
2 3 (3.06%) SCCM
3 2 (2.04%) Cisco CUCM
3 2 (2.04%) Tivoli
3 2 (2.04%) Tivoli Monitoring
4 1 (1.02%) Ansible
4 1 (1.02%) Consul
4 1 (1.02%) DatAdvantage
4 1 (1.02%) Docker Swarm
4 1 (1.02%) McAfee ePO
4 1 (1.02%) Opscode Chef
4 1 (1.02%) WebSphere Service Registry and Repository
Vendors
1 6 (6.12%) Oracle
1 6 (6.12%) Sybase
2 5 (5.10%) VMware
3 4 (4.08%) EMC
3 4 (4.08%) Hitachi
3 4 (4.08%) McAfee
3 4 (4.08%) Microsoft
3 4 (4.08%) Splunk
4 3 (3.06%) IBM
4 3 (3.06%) Informatica
4 3 (3.06%) Ivanti
4 3 (3.06%) TIBCO
5 2 (2.04%) Cisco
5 2 (2.04%) Google
5 2 (2.04%) Red Box
5 2 (2.04%) Speakerbus
5 2 (2.04%) Tableau
6 1 (1.02%) Citrix
6 1 (1.02%) Juniper
6 1 (1.02%) Varonis