Period
to 12 April 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 12 April 2021 with a comparison to the same period in the previous 2 years.

C
England > London
6 months to
12 Apr 2021
Same period 2020 Same period 2019
Rank 152 175 154
Rank change year-on-year +23 -21 +18
Permanent jobs citing C 689 953 1,391
As % of all permanent jobs advertised in London 2.25% 2.04% 2.28%
As % of the Programming Languages category 3.76% 3.61% 4.01%
Number of salaries quoted 518 758 1,110
10th Percentile £38,750 £37,500 £37,500
25th Percentile £47,813 £45,000 £43,938
Median annual salary (50th Percentile) £65,000 £60,000 £65,000
Median % change year-on-year +8.33% -7.69% +8.33%
75th Percentile £82,500 £85,000 £85,000
90th Percentile £95,000 £112,500 £100,000
England median annual salary £55,000 £52,500 £50,000
% change year-on-year +4.76% +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 18,322 26,392 34,728
As % of all permanent IT jobs advertised in London 59.74% 56.36% 56.87%
Number of salaries quoted 14,872 22,079 29,453
10th Percentile £43,750 £41,250 £37,500
25th Percentile £55,000 £51,250 £47,500
Median annual salary (50th Percentile) £70,000 £67,500 £65,000
Median % change year-on-year +3.70% +3.85% +8.33%
75th Percentile £87,500 £85,000 £81,250
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 12 April 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 12 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London -40 73 £67,500 - 35
South London +31 21 £57,500 +53.33% 8
West London +41 16 £55,000 -8.33% 30
East London +26 13 £72,500 +57.41% 13
C
England

For the 6 months to 12 April 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.

1 270 (39.19%) C++
2 232 (33.67%) Python
3 174 (25.25%) Agile Software Development
4 169 (24.53%) SQL
5 164 (23.80%) Finance
6 160 (23.22%) Java
7 150 (21.77%) Software Engineering
8 142 (20.61%) Degree
9 139 (20.17%) Analytics
10 138 (20.03%) Linux
11 105 (15.24%) AWS
12 100 (14.51%) C#
12 100 (14.51%) Data Science
13 94 (13.64%) Security Cleared
14 87 (12.63%) Computer Science
15 75 (10.89%) Open Source
16 73 (10.60%) JavaScript
17 72 (10.45%) SC Cleared
18 70 (10.16%) Banking
19 69 (10.01%) DV Cleared
19 69 (10.01%) Analytical Skills
20 66 (9.58%) DevOps
20 66 (9.58%) Test Automation
21 64 (9.29%) Azure
22 62 (9.00%) Problem-Solving
23 59 (8.56%) Microsoft
23 59 (8.56%) Big Data
24 58 (8.42%) Mentoring
24 58 (8.42%) Windows
24 58 (8.42%) Google

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 43 (6.24%) SAS
2 23 (3.34%) Apache Spark
3 14 (2.03%) Apache
3 14 (2.03%) Elasticsearch
4 11 (1.60%) ejabberd
4 11 (1.60%) IIS
4 11 (1.60%) nginx
4 11 (1.60%) Tomcat
5 8 (1.16%) Apache Pig
5 8 (1.16%) Jupyter
6 7 (1.02%) ArcGIS
7 6 (0.87%) Confluence
8 5 (0.73%) SharePoint
9 3 (0.44%) CMS
9 3 (0.44%) OpenStack
9 3 (0.44%) Tornado
10 2 (0.29%) Apache Airflow
10 2 (0.29%) SharePoint 2013
11 1 (0.15%) Cloud Foundry
11 1 (0.15%) Ethereum
Applications
1 12 (1.74%) SPSS
2 5 (0.73%) Microsoft Excel
3 4 (0.58%) Microsoft Office
4 3 (0.44%) Microsoft PowerPoint
5 2 (0.29%) Figma
5 2 (0.29%) Gephi
6 1 (0.15%) Adobe XD
6 1 (0.15%) Microsoft Project
6 1 (0.15%) MODO
6 1 (0.15%) MS Visio
6 1 (0.15%) Photoshop
6 1 (0.15%) Sketch
Business Applications
1 14 (2.03%) Summit
2 7 (1.02%) Dynamics NAV
3 2 (0.29%) Dynamics GP
3 2 (0.29%) Sentinel
3 2 (0.29%) Sparx Enterprise Architect
4 1 (0.15%) HFM
4 1 (0.15%) Hyperion Planning
4 1 (0.15%) Primavera
4 1 (0.15%) SAP S/4HANA
Cloud Services
1 105 (15.24%) AWS
2 64 (9.29%) Azure
3 56 (8.13%) GCP
4 26 (3.77%) Power Platform
5 15 (2.18%) GitHub
6 11 (1.60%) Trello
7 10 (1.45%) SaaS
8 9 (1.31%) AWS CloudFormation
9 8 (1.16%) Microsoft 365
10 7 (1.02%) Dynamics 365
10 7 (1.02%) Google Data Studio
11 6 (0.87%) Amazon ECS
11 6 (0.87%) Serverless
11 6 (0.87%) Virtual Private Cloud
12 5 (0.73%) Amazon EKS
12 5 (0.73%) AWS Direct Connect
12 5 (0.73%) AWS Lambda
12 5 (0.73%) Cloud Computing
12 5 (0.73%) OpenDNS
13 4 (0.58%) Slack
Communications & Networking
1 36 (5.22%) Firewall
2 31 (4.50%) Internet
3 23 (3.34%) BGP
4 22 (3.19%) VPN
5 20 (2.90%) Asterisk PBX
6 13 (1.89%) LAN
7 12 (1.74%) OSPF
7 12 (1.74%) VoIP
8 11 (1.60%) Diameter Protocol
8 11 (1.60%) PBX
8 11 (1.60%) SNMP
9 9 (1.31%) HTTP
9 9 (1.31%) MPLS
9 9 (1.31%) NAS
9 9 (1.31%) TCP/IP
9 9 (1.31%) Wi-Fi
10 8 (1.16%) Intrusion Detection
10 8 (1.16%) Network Security
11 7 (1.02%) Cisco Nexus
11 7 (1.02%) HSRP
Database & Business Intelligence
1 59 (8.56%) Big Data
2 36 (5.22%) SQL Server
3 34 (4.93%) Tableau
4 32 (4.64%) NoSQL
5 30 (4.35%) PostgreSQL
6 26 (3.77%) Power BI
7 22 (3.19%) Data Warehouse
8 21 (3.05%) MySQL
9 19 (2.76%) QlikView
10 16 (2.32%) Data Mining
10 16 (2.32%) Hadoop
10 16 (2.32%) Redis
11 15 (2.18%) Blockchain
12 13 (1.89%) MongoDB
13 12 (1.74%) Apache Cassandra
14 11 (1.60%) Relational Database
14 11 (1.60%) Spotfire
14 11 (1.60%) SQL Server Integration Services
15 10 (1.45%) Looker
15 10 (1.45%) Snowflake Schema
Development Applications
1 53 (7.69%) Git (software)
2 37 (5.37%) JIRA
3 24 (3.48%) Subversion
4 22 (3.19%) Jenkins
5 17 (2.47%) GitLab
6 11 (1.60%) Bitbucket
7 10 (1.45%) Selenium
8 9 (1.31%) Eclipse
9 8 (1.16%) Ranorex
10 6 (0.87%) Octopus Deploy
10 6 (0.87%) SoapUI
10 6 (0.87%) Visual Studio
11 5 (0.73%) GoCD
11 5 (0.73%) Maven
11 5 (0.73%) Metasploit
11 5 (0.73%) Mocha
11 5 (0.73%) TeamCity
12 3 (0.44%) LoadRunner
12 3 (0.44%) webpack
13 2 (0.29%) JMeter
General
1 164 (23.80%) Finance
2 70 (10.16%) Banking
3 51 (7.40%) Games
4 49 (7.11%) Public Sector
5 43 (6.24%) Marketing
6 34 (4.93%) Electronics
7 30 (4.35%) Law
8 29 (4.21%) Manufacturing
9 27 (3.92%) Telecoms
10 26 (3.77%) Legal
11 18 (2.61%) Retail
12 13 (1.89%) Local Government
13 10 (1.45%) Aerospace
14 6 (0.87%) Advertising
15 5 (0.73%) Back Office
15 5 (0.73%) Publishing
16 4 (0.58%) Automotive
16 4 (0.58%) International Banking
16 4 (0.58%) Multimedia
17 3 (0.44%) Online Betting
Job Titles
1 137 (19.88%) Developer
2 70 (10.16%) Software Engineer
3 62 (9.00%) Consultant
4 50 (7.26%) Data Scientist
5 49 (7.11%) Architect
6 39 (5.66%) Analyst
7 26 (3.77%) C++ Developer
8 25 (3.63%) Solutions Architect
9 23 (3.34%) Senior Developer
10 21 (3.05%) Full Stack Developer
10 21 (3.05%) Network Engineer
11 20 (2.90%) Data Engineer
12 17 (2.47%) C# Developer
12 17 (2.47%) Embedded Engineer
12 17 (2.47%) Senior Data Scientist
12 17 (2.47%) SQL Developer
12 17 (2.47%) Systems Engineer
13 16 (2.32%) Junior
13 16 (2.32%) Software Developer
14 15 (2.18%) Embedded Software Engineer
Libraries, Frameworks & Software Standards
1 41 (5.95%) HTML
2 39 (5.66%) REST
3 37 (5.37%) React
4 36 (5.22%) CSS
5 29 (4.21%) .NET
5 29 (4.21%) Node.js
6 24 (3.48%) RESTful
7 22 (3.19%) Web Services
8 17 (2.47%) Kafka
9 16 (2.32%) .NET Core
9 16 (2.32%) AngularJS
9 16 (2.32%) XML
10 15 (2.18%) NumPy
11 13 (1.89%) Django
11 13 (1.89%) Vue.js
12 11 (1.60%) JSON
12 11 (1.60%) RabbitMQ
12 11 (1.60%) Unreal Engine
12 11 (1.60%) XMPP
13 10 (1.45%) WebRTC
Miscellaneous
1 69 (10.01%) Analytical Skills
2 42 (6.10%) User Experience
3 40 (5.81%) Algorithms
4 29 (4.21%) Self-Motivation
5 22 (3.19%) Management Information System
6 19 (2.76%) Data Centre
6 19 (2.76%) Hedge funds
7 16 (2.32%) Virtual Team
8 14 (2.03%) Mobile App
9 13 (1.89%) Reinsurance
10 12 (1.74%) Data Structures
10 12 (1.74%) Internet of Things
10 12 (1.74%) Social Media
11 11 (1.60%) Analytical Mindset
11 11 (1.60%) Clustering
11 11 (1.60%) Robotics
12 10 (1.45%) Cloud Native
13 9 (1.31%) Smart Home
14 8 (1.16%) Augmented Reality
14 8 (1.16%) Video Conferencing
Operating Systems
1 138 (20.03%) Linux
2 58 (8.42%) Windows
3 42 (6.10%) Android
4 39 (5.66%) Unix
5 21 (3.05%) Apple iOS
6 18 (2.61%) Debian
7 13 (1.89%) Red Hat Enterprise Linux
8 11 (1.60%) Embedded Linux
9 8 (1.16%) CentOS
10 7 (1.02%) Windows Server
11 5 (0.73%) Kali Linux
12 4 (0.58%) Windows 10
13 3 (0.44%) Mac OS X
13 3 (0.44%) VMS
13 3 (0.44%) Windows 7
14 2 (0.29%) Mac OS
14 2 (0.29%) Windows Server 2008
14 2 (0.29%) Windows Server 2012
14 2 (0.29%) Windows Server 2016
15 1 (0.15%) Windows Server 2019
Processes & Methodologies
1 174 (25.25%) Agile Software Development
2 150 (21.77%) Software Engineering
3 139 (20.17%) Analytics
4 100 (14.51%) Data Science
5 87 (12.63%) Computer Science
6 75 (10.89%) Open Source
7 66 (9.58%) DevOps
7 66 (9.58%) Test Automation
8 62 (9.00%) Problem-Solving
9 58 (8.42%) Mentoring
10 56 (8.13%) Project Management
11 54 (7.84%) Machine Learning
12 52 (7.55%) Artificial Intelligence
12 52 (7.55%) Continuous Integration
13 51 (7.40%) Cybersecurity
13 51 (7.40%) Scrum
14 50 (7.26%) Mathematics
15 48 (6.97%) Business Intelligence
16 47 (6.82%) Stakeholder Management
17 42 (6.10%) Continuous Improvement
Programming Languages
1 270 (39.19%) C++
2 232 (33.67%) Python
3 169 (24.53%) SQL
4 160 (23.22%) Java
5 100 (14.51%) C#
6 73 (10.60%) JavaScript
7 52 (7.55%) R
8 46 (6.68%) Perl
9 35 (5.08%) Go
10 33 (4.79%) PHP
11 30 (4.35%) Bash Shell
12 20 (2.90%) VB
13 18 (2.61%) TypeScript
14 17 (2.47%) PowerShell
14 17 (2.47%) T-SQL
15 14 (2.03%) Rust
15 14 (2.03%) Scala
16 13 (1.89%) Cython
16 13 (1.89%) Embedded C
16 13 (1.89%) Kotlin
Qualifications
1 142 (20.61%) Degree
2 94 (13.64%) Security Cleared
3 72 (10.45%) SC Cleared
4 69 (10.01%) DV Cleared
5 39 (5.66%) Computer Science Degree
6 18 (2.61%) PhD
7 17 (2.47%) Cisco Certification
8 14 (2.03%) Master's Degree
9 13 (1.89%) CISSP
10 10 (1.45%) CISM
11 7 (1.02%) CCNP
11 7 (1.02%) JNCIP
11 7 (1.02%) Microsoft Certification
12 6 (0.87%) CEH
12 6 (0.87%) Numerate Degree
13 5 (0.73%) CCNA
13 5 (0.73%) GIAC
13 5 (0.73%) Oracle Certification
13 5 (0.73%) TOGAF Certification
14 4 (0.58%) RHCE
Quality Assurance & Compliance
1 39 (5.66%) QA
2 19 (2.76%) GDPR
3 6 (0.87%) SLA
4 3 (0.44%) ISO 13485
4 3 (0.44%) ISO/IEC 27001
5 2 (0.29%) Data Quality
5 2 (0.29%) MISRA
5 2 (0.29%) PMO
5 2 (0.29%) PSD2
6 1 (0.15%) COBIT
6 1 (0.15%) EMIR
6 1 (0.15%) GRC
6 1 (0.15%) HIPAA
6 1 (0.15%) HMG Security Policy Framework
6 1 (0.15%) ISO/IEC 15288
6 1 (0.15%) JSP 440
6 1 (0.15%) MISRA C
6 1 (0.15%) NIST
6 1 (0.15%) P3O
6 1 (0.15%) PCI DSS
System Software
1 56 (8.13%) Docker
2 18 (2.61%) Kamailio
3 15 (2.18%) Active Directory
4 14 (2.03%) Firmware
4 14 (2.03%) KVM
4 14 (2.03%) Postfix
5 11 (1.60%) iptables
5 11 (1.60%) QEMU
6 9 (1.31%) VMware Infrastructure
7 7 (1.02%) OpenSIPS
8 6 (0.87%) Snort
9 5 (0.73%) Squid
10 4 (0.58%) Samba
10 4 (0.58%) VMware ESXi
10 4 (0.58%) Xen
11 3 (0.44%) OCFS2
11 3 (0.44%) qmail
11 3 (0.44%) Sendmail
11 3 (0.44%) Veritas Cluster Server
11 3 (0.44%) Veritas Volume Manager
Systems Management
1 48 (6.97%) Ansible
2 40 (5.81%) Kubernetes
3 30 (4.35%) Terraform
4 26 (3.77%) Puppet
5 12 (1.74%) ZABBIX
6 11 (1.60%) Galera Cluster
6 11 (1.60%) HAProxy
7 9 (1.31%) Prometheus
8 8 (1.16%) Opscode Chef
9 7 (1.02%) SELinux
10 6 (0.87%) Nagios
11 5 (0.73%) Istio
11 5 (0.73%) Kibana
11 5 (0.73%) Nessus
11 5 (0.73%) Nexpose
11 5 (0.73%) Suricata
12 3 (0.44%) Failover Clustering
12 3 (0.44%) Grafana
12 3 (0.44%) QRadar
13 2 (0.29%) vCenter Server
Vendors
1 59 (8.56%) Microsoft
2 58 (8.42%) Google
3 33 (4.79%) Cisco
4 30 (4.35%) Oracle
5 22 (3.19%) SAP
6 18 (2.61%) Juniper
6 18 (2.61%) Palo Alto
7 17 (2.47%) Atlassian
7 17 (2.47%) HP
8 13 (1.89%) Splunk
8 13 (1.89%) Yahoo!
9 12 (1.74%) Guidewire
10 11 (1.60%) Apple
10 11 (1.60%) CheckPoint
10 11 (1.60%) GENBAND
10 11 (1.60%) Mitel
10 11 (1.60%) Nortel
10 11 (1.60%) Percona
10 11 (1.60%) SonicWALL
10 11 (1.60%) Twitter