Period
to 19 January 2021

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for C skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited C over the 6 months to 19 January 2021 with a comparison to the same period in the previous 2 years.

C
England > London
6 months to
19 Jan 2021
Same period 2020 Same period 2019
Rank 146 175 164
Rank change year-on-year +29 -11 +25
Permanent jobs citing C 530 1,048 1,392
As % of all permanent jobs advertised in London 2.20% 2.07% 2.22%
As % of the Programming Languages category 3.62% 3.66% 3.89%
Number of salaries quoted 523 880 1,202
Median annual salary £70,000 £60,000 £65,000
Median salary % change year-on-year +16.67% -7.69% +8.33%
10th Percentile £45,000 £37,500 £37,575
90th Percentile £127,500 £115,000 £102,500
England median annual salary £59,000 £52,500 £50,000
% change year-on-year +12.38% +5.00% -

C is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for coding skills.

All Programming Languages
London
Permanent vacancies with a requirement for coding skills 14,644 28,601 35,792
As % of all permanent IT jobs advertised in London 60.83% 56.57% 57.17%
Number of salaries quoted 12,569 24,000 30,302
Median annual salary £70,000 £67,500 £65,000
Median salary % change year-on-year +3.70% +3.85% +8.33%
10th Percentile £45,000 £40,000 £37,500
90th Percentile £105,000 £105,000 £95,000
England median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +4.76% +5.00%

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
Salary Trend in London

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

Salary trend for C in London

C
Salary Histogram in London

Salary distribution for jobs citing C in London over the 6 months to 19 January 2021.

Salary histogram for C in London

C
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing C within the London region over the 6 months to 19 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London 0 58 £67,500 -6.90% 39
East London +36 13 £72,500 +3.57% 18
West London +34 10 £71,250 +18.75% 21
South London +29 6 £57,500 +21.05% 5
C
England

For the 6 months to 19 January 2021, IT 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 permanent job ads across the London region with a requirement for C.

1 188 (35.47%) Python
2 185 (34.91%) C++
3 172 (32.45%) Java
4 145 (27.36%) Finance
4 145 (27.36%) Agile Software Development
5 109 (20.57%) AWS
6 107 (20.19%) SQL
7 104 (19.62%) Degree
8 96 (18.11%) Linux
9 93 (17.55%) Azure
10 78 (14.72%) Analytics
11 73 (13.77%) Google
12 72 (13.58%) Scrum
13 70 (13.21%) Data Science
14 69 (13.02%) Software Engineering
15 61 (11.51%) GCP
16 59 (11.13%) R
16 59 (11.13%) Banking
17 54 (10.19%) Migration
17 54 (10.19%) Test Automation
18 53 (10.00%) DevOps
18 53 (10.00%) C#
18 53 (10.00%) Security Cleared
19 52 (9.81%) Open Source
20 49 (9.25%) JavaScript
20 49 (9.25%) Asset Management
21 48 (9.06%) Microsoft
22 47 (8.87%) Stakeholder Management
23 46 (8.68%) Computer Science
24 43 (8.11%) Cybersecurity

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 21 (3.96%) SAS
2 15 (2.83%) Elasticsearch
3 13 (2.45%) Apache Spark
4 10 (1.89%) Confluence
5 7 (1.32%) Apache
5 7 (1.32%) SharePoint
6 5 (0.94%) ArcGIS
6 5 (0.94%) Jupyter
6 5 (0.94%) WebLogic
7 4 (0.75%) Apache Pig
7 4 (0.75%) nginx
7 4 (0.75%) Tomcat
8 3 (0.57%) IIS
8 3 (0.57%) MS Exchange
8 3 (0.57%) WebSphere
9 2 (0.38%) Exchange Server 2010
9 2 (0.38%) IBM Notes
9 2 (0.38%) JBoss
9 2 (0.38%) OpenStack
9 2 (0.38%) SharePoint 2010
Applications
1 15 (2.83%) Microsoft Office
2 9 (1.70%) SPSS
3 8 (1.51%) Microsoft Excel
4 6 (1.13%) Microsoft PowerPoint
5 4 (0.75%) MS Visio
6 2 (0.38%) Microsoft Project
7 1 (0.19%) Adobe XD
7 1 (0.19%) Sketch
Business Applications
1 11 (2.08%) Dynamics NAV
2 7 (1.32%) Summit
3 2 (0.38%) Dynamics GP
4 1 (0.19%) HFM
4 1 (0.19%) Hyperion Planning
4 1 (0.19%) Oracle Applications
4 1 (0.19%) Primavera
4 1 (0.19%) SAP Hybris
Cloud Services
1 109 (20.57%) AWS
2 93 (17.55%) Azure
3 61 (11.51%) GCP
4 18 (3.40%) Power Platform
5 17 (3.21%) Office 365
6 16 (3.02%) Trello
7 11 (2.08%) GitHub
8 10 (1.89%) Dynamics 365
9 9 (1.70%) AWS CloudFormation
9 9 (1.70%) SaaS
10 7 (1.32%) PaaS
11 6 (1.13%) Azure Active Directory
12 5 (0.94%) IaaS
12 5 (0.94%) Serverless
12 5 (0.94%) Slack
13 4 (0.75%) AWS Lambda
13 4 (0.75%) Mimecast
14 3 (0.57%) CloudFront
14 3 (0.57%) Fastly
14 3 (0.57%) Route 53
Communications & Networking
1 15 (2.83%) Internet
2 10 (1.89%) Firewall
2 10 (1.89%) NAS
2 10 (1.89%) Wireless
3 6 (1.13%) DNS
3 6 (1.13%) Network Security
4 5 (0.94%) Asterisk PBX
5 4 (0.75%) BGP
5 4 (0.75%) DHCP
5 4 (0.75%) RTP
5 4 (0.75%) SAN
5 4 (0.75%) SSL
5 4 (0.75%) TCP/IP
5 4 (0.75%) VoIP
5 4 (0.75%) VPN
6 3 (0.57%) Cisco ISE
6 3 (0.57%) FTP
6 3 (0.57%) OSPF
6 3 (0.57%) RS-485
7 2 (0.38%) RS-232
Database & Business Intelligence
1 41 (7.74%) Big Data
2 33 (6.23%) Tableau
3 21 (3.96%) SQL Server
4 20 (3.77%) NoSQL
5 18 (3.40%) Data Warehouse
5 18 (3.40%) Power BI
6 17 (3.21%) QlikView
6 17 (3.21%) Snowflake Schema
7 16 (3.02%) PostgreSQL
8 15 (2.83%) Looker
9 14 (2.64%) MongoDB
10 13 (2.45%) Blockchain
10 13 (2.45%) Hadoop
10 13 (2.45%) Spotfire
11 11 (2.08%) MySQL
12 10 (1.89%) KDB
13 7 (1.32%) Kdb+
13 7 (1.32%) Redis
14 5 (0.94%) Apache Zeppelin
14 5 (0.94%) SQLite
Development Applications
1 39 (7.36%) Git (software)
2 38 (7.17%) JIRA
3 24 (4.53%) Jenkins
3 24 (4.53%) Subversion
4 9 (1.70%) Eclipse
5 8 (1.51%) GitLab
6 6 (1.13%) Mocha
7 5 (0.94%) Ant
7 5 (0.94%) Maven
8 4 (0.75%) Team Foundation Server
9 3 (0.57%) Atlassian Bamboo
9 3 (0.57%) webpack
10 2 (0.38%) CppUnit
10 2 (0.38%) Cucumber
10 2 (0.38%) GoogleTest
10 2 (0.38%) Gradle
10 2 (0.38%) JMeter
10 2 (0.38%) LoadRunner
10 2 (0.38%) SoapUI
10 2 (0.38%) The Grinder
General
1 145 (27.36%) Finance
2 59 (11.13%) Banking
3 25 (4.72%) Marketing
4 21 (3.96%) Games
5 20 (3.77%) Electronics
6 18 (3.40%) Law
6 18 (3.40%) Public Sector
7 17 (3.21%) Manufacturing
8 8 (1.51%) Telecoms
9 6 (1.13%) Advertising
9 6 (1.13%) Front Office
9 6 (1.13%) Local Government
9 6 (1.13%) Retail
10 5 (0.94%) Publishing
11 4 (0.75%) Back Office
11 4 (0.75%) Dutch Language
11 4 (0.75%) French Language
11 4 (0.75%) German Language
11 4 (0.75%) Polish Language
12 3 (0.57%) Police
Job Titles
1 132 (24.91%) Developer
2 51 (9.62%) Consultant
3 44 (8.30%) Architect
4 33 (6.23%) Development Manager
5 32 (6.04%) Python Developer
6 30 (5.66%) Senior Developer
6 30 (5.66%) Software Engineer
7 28 (5.28%) Data Scientist
8 27 (5.09%) Lead Developer
9 22 (4.15%) Solutions Architect
10 20 (3.77%) Analyst
10 20 (3.77%) Full Stack Developer
11 19 (3.58%) C++ Developer
12 17 (3.21%) Technical Architect
13 16 (3.02%) Finance Manager
13 16 (3.02%) Java Developer
13 16 (3.02%) SQL Developer
14 14 (2.64%) Programmer
15 13 (2.45%) Games Programmer
15 13 (2.45%) Senior Programmer
Libraries, Frameworks & Software Standards
1 42 (7.92%) Web Services
2 20 (3.77%) HTML
3 17 (3.21%) .NET
4 16 (3.02%) CSS
4 16 (3.02%) REST
4 16 (3.02%) TensorFlow
5 15 (2.83%) React
5 15 (2.83%) RESTful
6 14 (2.64%) Node.js
6 14 (2.64%) PyTorch
7 13 (2.45%) Unreal Engine
8 12 (2.26%) OpenCV
9 11 (2.08%) Kafka
9 11 (2.08%) POSIX
9 11 (2.08%) XML
10 9 (1.70%) .NET Framework
10 9 (1.70%) AngularJS
10 9 (1.70%) JSON
10 9 (1.70%) NumPy
10 9 (1.70%) RabbitMQ
Miscellaneous
1 41 (7.74%) Analytical Skills
1 41 (7.74%) Greenfield Project
2 38 (7.17%) Hedge funds
3 34 (6.42%) Derivative
4 33 (6.23%) User Experience
5 32 (6.04%) Algorithms
5 32 (6.04%) Credit Derivative
5 32 (6.04%) Fixed Income
6 24 (4.53%) Mobile App
7 17 (3.21%) Clustering
7 17 (3.21%) Management Information System
8 14 (2.64%) Virtual Team
9 13 (2.45%) Reinsurance
10 12 (2.26%) Cloud Native
11 10 (1.89%) Data Structures
11 10 (1.89%) Self-Motivation
11 10 (1.89%) Social Media
11 10 (1.89%) Video Conferencing
12 9 (1.70%) Data Centre
13 8 (1.51%) Device Driver
Operating Systems
1 96 (18.11%) Linux
2 42 (7.92%) Android
3 37 (6.98%) Windows
4 34 (6.42%) Unix
5 21 (3.96%) Apple iOS
6 10 (1.89%) Windows 10
7 7 (1.32%) Windows 7
8 6 (1.13%) Debian
8 6 (1.13%) Red Hat Enterprise Linux
9 5 (0.94%) CentOS
10 4 (0.75%) Windows Server
11 3 (0.57%) VMS
12 2 (0.38%) Ubuntu
12 2 (0.38%) Windows Server 2016
12 2 (0.38%) Windows Server 2019
13 1 (0.19%) FreeBSD
13 1 (0.19%) Oracle Linux
13 1 (0.19%) Robot Operating System
Processes & Methodologies
1 145 (27.36%) Agile Software Development
2 78 (14.72%) Analytics
3 72 (13.58%) Scrum
4 70 (13.21%) Data Science
5 69 (13.02%) Software Engineering
6 54 (10.19%) Migration
6 54 (10.19%) Test Automation
7 53 (10.00%) DevOps
8 52 (9.81%) Open Source
9 49 (9.25%) Asset Management
10 47 (8.87%) Stakeholder Management
11 46 (8.68%) Computer Science
12 43 (8.11%) Cybersecurity
13 42 (7.92%) Project Management
14 41 (7.74%) Problem-Solving
15 40 (7.55%) Performance Management
16 37 (6.98%) Mathematics
17 36 (6.79%) Business Development
17 36 (6.79%) Business Intelligence
17 36 (6.79%) Investment Management
Programming Languages
1 188 (35.47%) Python
2 185 (34.91%) C++
3 172 (32.45%) Java
4 107 (20.19%) SQL
5 59 (11.13%) R
6 53 (10.00%) C#
7 49 (9.25%) JavaScript
8 38 (7.17%) Go
9 24 (4.53%) Perl
10 18 (3.40%) Kotlin
11 17 (3.21%) PHP
12 14 (2.64%) PowerShell
12 14 (2.64%) Scala
12 14 (2.64%) T-SQL
13 11 (2.08%) PL/SQL
14 9 (1.70%) Bash Shell
15 7 (1.32%) Apple Swift
15 7 (1.32%) Objective-C
15 7 (1.32%) Rust
15 7 (1.32%) TypeScript
Qualifications
1 104 (19.62%) Degree
2 53 (10.00%) Security Cleared
3 42 (7.92%) SC Cleared
4 41 (7.74%) DV Cleared
5 20 (3.77%) PhD
6 19 (3.58%) Computer Science Degree
7 14 (2.64%) CISM
7 14 (2.64%) CISSP
7 14 (2.64%) Master's Degree
8 7 (1.32%) ITIL Certification
9 6 (1.13%) Cisco Certification
10 5 (0.94%) CISA
10 5 (0.94%) Numerate Degree
10 5 (0.94%) Oracle Certification
10 5 (0.94%) TOGAF Certification
11 4 (0.75%) (ISC)2 CCSP
11 4 (0.75%) CRISC
11 4 (0.75%) CSSLP
11 4 (0.75%) RHCE
11 4 (0.75%) RHCSA
Quality Assurance & Compliance
1 19 (3.58%) QA
2 12 (2.26%) GDPR
3 7 (1.32%) ISO/IEC 27001
4 5 (0.94%) NIST
5 3 (0.57%) ISO 13485
5 3 (0.57%) SLA
6 2 (0.38%) MiFID
7 1 (0.19%) EMIR
7 1 (0.19%) ISO/IEC 15288
7 1 (0.19%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
7 1 (0.19%) MISRA
7 1 (0.19%) P3O
7 1 (0.19%) PMBOK
System Software
1 38 (7.17%) Docker
2 17 (3.21%) Active Directory
3 11 (2.08%) Firmware
4 5 (0.94%) Kamailio
5 4 (0.75%) KVM
5 4 (0.75%) OpenSIPS
5 4 (0.75%) Postfix
6 3 (0.57%) OCFS2
6 3 (0.57%) Oracle RAC
6 3 (0.57%) qmail
6 3 (0.57%) Samba
6 3 (0.57%) Sendmail
6 3 (0.57%) Veritas Cluster Server
6 3 (0.57%) Veritas Volume Manager
6 3 (0.57%) Xen
7 2 (0.38%) Hyper-V
7 2 (0.38%) Virtual Machines
7 2 (0.38%) VMware Infrastructure
8 1 (0.19%) iptables
8 1 (0.19%) Snort
Systems Management
1 30 (5.66%) Kubernetes
2 21 (3.96%) Terraform
3 12 (2.26%) Puppet
4 9 (1.70%) Ansible
4 9 (1.70%) Opscode Chef
5 7 (1.32%) SELinux
6 5 (0.94%) Microsoft Intune
7 4 (0.75%) Mesos
7 4 (0.75%) QRadar
7 4 (0.75%) Salt
7 4 (0.75%) SCCM
8 3 (0.57%) Failover Clustering
8 3 (0.57%) HP Quality Center
9 2 (0.38%) Istio
9 2 (0.38%) Microsoft Clustering
9 2 (0.38%) Nagios
9 2 (0.38%) Prometheus
10 1 (0.19%) Kibana
10 1 (0.19%) SCOM
10 1 (0.19%) ZABBIX
Vendors
1 73 (13.77%) Google
2 48 (9.06%) Microsoft
3 31 (5.85%) Oracle
4 17 (3.21%) SAP
5 12 (2.26%) Guidewire
6 11 (2.08%) Sybase
7 9 (1.70%) Cisco
8 8 (1.51%) HP
9 6 (1.13%) Apple
10 4 (0.75%) Atlassian
10 4 (0.75%) Cloudera
10 4 (0.75%) Darktrace
10 4 (0.75%) Databricks
10 4 (0.75%) IBM
10 4 (0.75%) Palo Alto
10 4 (0.75%) Red Hat
10 4 (0.75%) ServiceNow
11 3 (0.57%) Broadcom
11 3 (0.57%) F5
11 3 (0.57%) Xamarin