Job Vacancy Trend Salary Trend Salary Histogram Job Locations Skill Sets
Period
to 14 June 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 14 June 2021 with a comparison to the same period in the previous 2 years.

C
England > London
6 months to
14 Jun 2021		 Same period 2020 Same period 2019
Rank 152 187 157
Rank change year-on-year +35 -30 +12
Permanent jobs citing C 886 671 1,308
As % of all permanent jobs advertised in London 2.33% 1.93% 2.27%
As % of the Programming Languages category 3.80% 3.36% 4.03%
Number of salaries quoted 526 535 943
10th Percentile £36,625 £38,000 £35,000
25th Percentile £47,500 £48,750 £43,750
Median annual salary (50th Percentile) £62,000 £62,500 £62,500
Median % change year-on-year -0.80% - +4.17%
75th Percentile £82,500 £90,000 £81,250
90th Percentile £95,625 £114,000 £98,500
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 23,303 19,983 32,448
As % of all permanent IT jobs advertised in London 61.24% 57.38% 56.35%
Number of salaries quoted 16,195 16,657 27,463
10th Percentile £45,000 £42,500 £38,750
25th Percentile £55,000 £52,500 £48,750
Median annual salary (50th Percentile) £70,000 £70,000 £65,000
Median % change year-on-year - +7.69% +8.33%
75th Percentile £88,750 £86,250 £82,500
90th Percentile £105,000 £105,000 £96,250
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 14 June 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 14 June 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 -51 87 £60,000 -7.69% 36
West London +11 25 £55,000 +10.00% 39
South London +10 22 £42,500 +13.33% 6
East London +22 17 £72,500 +57.41% 12
C
England

For the 6 months to 14 June 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.

1 336 (37.92%) C++
2 335 (37.81%) Python
3 264 (29.80%) Agile Software Development
4 263 (29.68%) Software Engineering
5 253 (28.56%) Social Skills
6 251 (28.33%) Finance
7 244 (27.54%) Java
8 229 (25.85%) SQL
9 198 (22.35%) Linux
10 194 (21.90%) Degree
11 178 (20.09%) AWS
12 171 (19.30%) C#
13 141 (15.91%) Analytics
14 139 (15.69%) Computer Science
15 129 (14.56%) JavaScript
16 127 (14.33%) GCP
17 122 (13.77%) Docker
18 106 (11.96%) Data Science
19 102 (11.51%) Problem-Solving
20 101 (11.40%) Continuous Integration
21 98 (11.06%) Windows
22 97 (10.95%) Kubernetes
23 95 (10.72%) Open Source
23 95 (10.72%) Google
24 92 (10.38%) Artificial Intelligence
24 92 (10.38%) DevOps
25 89 (10.05%) Analytical Skills
26 88 (9.93%) Banking
27 87 (9.82%) PostgreSQL
27 87 (9.82%) Security Cleared

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 36 (4.06%) SAS
2 26 (2.93%) Apache Spark
3 22 (2.48%) Tomcat
4 20 (2.26%) Elasticsearch
5 18 (2.03%) Confluence
6 15 (1.69%) Apache
6 15 (1.69%) IIS
7 14 (1.58%) nginx
7 14 (1.58%) Tornado
8 13 (1.47%) ejabberd
9 11 (1.24%) SharePoint
10 9 (1.02%) WebSphere
11 8 (0.90%) Apache Pig
11 8 (0.90%) Jupyter
12 7 (0.79%) JBoss
12 7 (0.79%) Oracle SOA Suite
13 5 (0.56%) ArcGIS
14 3 (0.34%) CMS
14 3 (0.34%) WebLogic
15 2 (0.23%) MQSeries
Applications
1 12 (1.35%) Microsoft Office
2 10 (1.13%) SPSS
3 8 (0.90%) Microsoft Excel
4 5 (0.56%) Microsoft PowerPoint
5 4 (0.45%) Chatbot
6 2 (0.23%) Figma
6 2 (0.23%) Gephi
7 1 (0.11%) MODO
7 1 (0.11%) MS Visio
7 1 (0.11%) Photoshop
Business Applications
1 10 (1.13%) Summit
2 5 (0.56%) Dynamics NAV
3 4 (0.45%) Sparx Enterprise Architect
4 2 (0.23%) Magento
4 2 (0.23%) SAP CO
4 2 (0.23%) SAP FI
4 2 (0.23%) SAP FI/CO
4 2 (0.23%) Sentinel
5 1 (0.11%) Dynamics AX
5 1 (0.11%) NetSuite
5 1 (0.11%) Oracle ERP
5 1 (0.11%) Oracle Payroll
5 1 (0.11%) Oracle Procure-to-Pay
5 1 (0.11%) SAP R/3
5 1 (0.11%) SAP S/4HANA
Cloud Services
1 178 (20.09%) AWS
2 127 (14.33%) GCP
3 86 (9.71%) Azure
4 30 (3.39%) SaaS
5 27 (3.05%) GitHub
6 21 (2.37%) Power Platform
7 18 (2.03%) Serverless
8 14 (1.58%) Cloud Computing
9 12 (1.35%) Amazon EKS
9 12 (1.35%) AWS CloudFormation
9 12 (1.35%) AWS Lambda
10 11 (1.24%) Snowflake
11 10 (1.13%) Azure Sentinel
11 10 (1.13%) Microsoft 365
12 9 (1.02%) Amazon S3
12 9 (1.02%) OpenShift
12 9 (1.02%) PaaS
12 9 (1.02%) Slack
12 9 (1.02%) WhatsApp
13 8 (0.90%) OpenDNS
Communications & Networking
1 53 (5.98%) Firewall
2 39 (4.40%) HTTP
3 30 (3.39%) Internet
4 25 (2.82%) Asterisk PBX
4 25 (2.82%) BGP
4 25 (2.82%) VPN
5 23 (2.60%) LAN
6 21 (2.37%) TCP/IP
7 16 (1.81%) VoIP
8 14 (1.58%) Network Security
8 14 (1.58%) PBX
9 13 (1.47%) Diameter Protocol
9 13 (1.47%) SNMP
10 12 (1.35%) OSPF
10 12 (1.35%) Wi-Fi
11 11 (1.24%) MPLS
11 11 (1.24%) WAN
12 10 (1.13%) Intrusion Detection
12 10 (1.13%) IPv4
12 10 (1.13%) Wireless
Database & Business Intelligence
1 87 (9.82%) PostgreSQL
2 81 (9.14%) NoSQL
3 64 (7.22%) Big Data
4 40 (4.51%) SQL Server
5 36 (4.06%) Relational Database
6 32 (3.61%) MySQL
7 31 (3.50%) MongoDB
8 28 (3.16%) Redis
9 22 (2.48%) Data Warehouse
10 21 (2.37%) Power BI
10 21 (2.37%) Tableau
11 18 (2.03%) SQL Server Integration Services
12 17 (1.92%) Data Mining
13 16 (1.81%) Hadoop
14 14 (1.58%) Blockchain
14 14 (1.58%) SQLite
15 12 (1.35%) Amazon DynamoDB
16 11 (1.24%) Apache Cassandra
16 11 (1.24%) Data Lake
16 11 (1.24%) RDBMS
Development Applications
1 85 (9.59%) Git (software)
2 43 (4.85%) GitLab
3 41 (4.63%) JIRA
4 32 (3.61%) Jenkins
5 23 (2.60%) Octopus Deploy
6 22 (2.48%) TeamCity
7 20 (2.26%) Selenium
8 18 (2.03%) Subversion
9 15 (1.69%) Maven
10 14 (1.58%) GoCD
11 13 (1.47%) Bitbucket
12 12 (1.35%) Ranorex
13 11 (1.24%) Cucumber
13 11 (1.24%) SoapUI
14 9 (1.02%) GDB
15 8 (0.90%) LoadRunner
15 8 (0.90%) Mercurial
15 8 (0.90%) Metasploit
15 8 (0.90%) Valgrind
16 7 (0.79%) JMeter
General
1 253 (28.56%) Social Skills
2 251 (28.33%) Finance
3 89 (10.05%) Analytical Skills
4 88 (9.93%) Banking
5 81 (9.14%) Games
6 71 (8.01%) Marketing
7 59 (6.66%) Law
8 50 (5.64%) Public Sector
9 45 (5.08%) Legal
10 43 (4.85%) Electronics
11 41 (4.63%) Manufacturing
12 35 (3.95%) Telecoms
13 32 (3.61%) Retail
14 30 (3.39%) Organisational Skills
15 24 (2.71%) Presentation Skills
16 14 (1.58%) Back Office
16 14 (1.58%) Online Betting
17 13 (1.47%) Military
18 11 (1.24%) Local Government
18 11 (1.24%) Pharmaceutical
Job Titles
1 156 (17.61%) Developer
2 139 (15.69%) Software Engineer
3 73 (8.24%) Consultant
4 59 (6.66%) Architect
5 46 (5.19%) Analyst
6 42 (4.74%) Data Scientist
7 30 (3.39%) Data Engineer
7 30 (3.39%) Software Developer
8 29 (3.27%) Solutions Architect
9 28 (3.16%) Senior Developer
10 25 (2.82%) Backend Developer
10 25 (2.82%) Embedded Engineer
11 24 (2.71%) Embedded Software Engineer
11 24 (2.71%) Network Engineer
12 23 (2.60%) Junior
13 22 (2.48%) C++ Developer
13 22 (2.48%) Java Developer
13 22 (2.48%) Senior Software Engineer
14 20 (2.26%) Managing Consultant
15 18 (2.03%) Strategy Consultant
Libraries, Frameworks & Software Standards
1 76 (8.58%) .NET
2 71 (8.01%) REST
3 66 (7.45%) React
4 56 (6.32%) HTML
4 56 (6.32%) Node.js
5 50 (5.64%) RESTful
6 47 (5.30%) CSS
7 44 (4.97%) .NET Core
7 44 (4.97%) Spring
8 33 (3.72%) AngularJS
9 26 (2.93%) Django
9 26 (2.93%) Kafka
9 26 (2.93%) RabbitMQ
10 24 (2.71%) NumPy
10 24 (2.71%) Ruby on Rails
11 23 (2.60%) Hibernate
12 21 (2.37%) COM
12 21 (2.37%) Web Services
13 20 (2.26%) ASP.NET
14 19 (2.14%) Vue.js
Miscellaneous
1 60 (6.77%) Algorithms
2 57 (6.43%) User Experience
3 35 (3.95%) Data Centre
4 30 (3.39%) Self-Motivation
5 27 (3.05%) Data Structures
6 26 (2.93%) Virtual Team
7 23 (2.60%) Hedge funds
7 23 (2.60%) Robotics
8 21 (2.37%) Management Information System
9 16 (1.81%) Blog
10 15 (1.69%) Augmented Reality
10 15 (1.69%) Public Cloud
11 14 (1.58%) Online Games
11 14 (1.58%) Social Media
12 13 (1.47%) Cloud Native
12 13 (1.47%) Video\Live Streaming
13 12 (1.35%) Driving Licence
14 11 (1.24%) Analytical Mindset
14 11 (1.24%) Fixed Income
15 10 (1.13%) Life Science
Operating Systems
1 198 (22.35%) Linux
2 98 (11.06%) Windows
3 66 (7.45%) Unix
4 45 (5.08%) Android
5 28 (3.16%) Apple iOS
6 21 (2.37%) Embedded Linux
7 18 (2.03%) Debian
8 13 (1.47%) Mac OS X
9 11 (1.24%) Red Hat Enterprise Linux
10 8 (0.90%) Kali Linux
11 7 (0.79%) Windows Server
12 6 (0.68%) CentOS
12 6 (0.68%) Windows 10
13 5 (0.56%) Windows Server 2016
14 4 (0.45%) Windows 7
14 4 (0.45%) Windows Server 2008
15 3 (0.34%) Mac OS
15 3 (0.34%) Ubuntu
16 2 (0.23%) SUSE
16 2 (0.23%) SUSE Linux Enterprise Server
Processes & Methodologies
1 264 (29.80%) Agile Software Development
2 263 (29.68%) Software Engineering
3 141 (15.91%) Analytics
4 139 (15.69%) Computer Science
5 106 (11.96%) Data Science
6 102 (11.51%) Problem-Solving
7 101 (11.40%) Continuous Integration
8 95 (10.72%) Open Source
9 92 (10.38%) Artificial Intelligence
9 92 (10.38%) DevOps
10 85 (9.59%) Test Automation
11 82 (9.26%) SDLC
12 74 (8.35%) Machine Learning
13 70 (7.90%) Mentoring
14 67 (7.56%) Microservices
15 66 (7.45%) Fintech
16 65 (7.34%) Scrum
17 64 (7.22%) Mathematics
18 61 (6.88%) Business Intelligence
19 59 (6.66%) Project Management
Programming Languages
1 336 (37.92%) C++
2 335 (37.81%) Python
3 244 (27.54%) Java
4 229 (25.85%) SQL
5 171 (19.30%) C#
6 129 (14.56%) JavaScript
7 70 (7.90%) Go
8 59 (6.66%) R
9 54 (6.09%) TypeScript
10 51 (5.76%) Perl
11 44 (4.97%) Bash Shell
12 41 (4.63%) Ruby
13 36 (4.06%) PHP
14 29 (3.27%) Scala
14 29 (3.27%) VB
15 24 (2.71%) Rust
16 23 (2.60%) PowerShell
17 22 (2.48%) Cython
18 21 (2.37%) Objective-C
19 18 (2.03%) Embedded C
Qualifications
1 194 (21.90%) Degree
2 87 (9.82%) Security Cleared
3 67 (7.56%) SC Cleared
4 62 (7.00%) DV Cleared
5 61 (6.88%) Computer Science Degree
6 28 (3.16%) Master's Degree
7 23 (2.60%) Cisco Certification
8 20 (2.26%) PhD
9 10 (1.13%) CISSP
10 9 (1.02%) CCNP
10 9 (1.02%) JNCIP
11 8 (0.90%) CCNA
12 7 (0.79%) CISM
12 7 (0.79%) Microsoft Certification
13 6 (0.68%) CEH
14 4 (0.45%) (ISC)2 CCSP
14 4 (0.45%) GIAC
14 4 (0.45%) MCSE
14 4 (0.45%) TOGAF Certification
15 3 (0.34%) SANS
Quality Assurance & Compliance
1 70 (7.90%) QA
2 14 (1.58%) GDPR
3 12 (1.35%) PSD2
4 5 (0.56%) Data Quality
4 5 (0.56%) NIST
5 3 (0.34%) Accessibility
5 3 (0.34%) COBIT
5 3 (0.34%) PMO
5 3 (0.34%) SLA
6 2 (0.23%) Sarbanes-Oxley
7 1 (0.11%) EMIR
7 1 (0.11%) HIPAA
7 1 (0.11%) HMG Security Policy Framework
7 1 (0.11%) ISO/IEC 15288
7 1 (0.11%) JSP 440
7 1 (0.11%) MiFID
7 1 (0.11%) MISRA
7 1 (0.11%) MISRA C
7 1 (0.11%) PCI DSS
7 1 (0.11%) Solvency II
System Software
1 122 (13.77%) Docker
2 22 (2.48%) Firmware
3 17 (1.92%) Kamailio
4 16 (1.81%) Active Directory
5 13 (1.47%) iptables
5 13 (1.47%) KVM
5 13 (1.47%) Postfix
5 13 (1.47%) QEMU
6 11 (1.24%) VMware Infrastructure
7 8 (0.90%) Snort
7 8 (0.90%) Squid
8 4 (0.45%) OpenSIPS
9 3 (0.34%) VMware ESXi
10 2 (0.23%) Apache Flume
11 1 (0.11%) BitLocker
11 1 (0.11%) NFS
11 1 (0.11%) Samba
11 1 (0.11%) Terminal Services
11 1 (0.11%) VirtualBox
11 1 (0.11%) Xen
Systems Management
1 97 (10.95%) Kubernetes
2 72 (8.13%) Ansible
3 42 (4.74%) Terraform
4 33 (3.72%) Puppet
5 15 (1.69%) Prometheus
5 15 (1.69%) ZABBIX
6 14 (1.58%) Opscode Chef
7 13 (1.47%) Galera Cluster
7 13 (1.47%) HAProxy
8 10 (1.13%) SCCM
9 8 (0.90%) Nessus
9 8 (0.90%) Nexpose
9 8 (0.90%) Suricata
10 7 (0.79%) Nagios
11 6 (0.68%) HP Quality Center
12 5 (0.56%) Consul
12 5 (0.56%) Packer
12 5 (0.56%) QRadar
13 4 (0.45%) Istio
13 4 (0.45%) Kibana
Vendors
1 95 (10.72%) Google
2 74 (8.35%) Microsoft
3 63 (7.11%) Oracle
4 37 (4.18%) Cisco
5 30 (3.39%) Splunk
6 26 (2.93%) Samsung
7 22 (2.48%) Juniper
7 22 (2.48%) SAP
8 21 (2.37%) Yahoo!
9 20 (2.26%) HP
9 20 (2.26%) Palo Alto
10 16 (1.81%) Atlassian
10 16 (1.81%) IBM
11 15 (1.69%) Salesforce.com
12 13 (1.47%) GENBAND
12 13 (1.47%) Mitel
12 13 (1.47%) Nortel
12 13 (1.47%) Percona
12 13 (1.47%) SonicWALL
12 13 (1.47%) VMware