Period
to 8 December 2021

The following table provides summary statistics for permanent job vacancies advertised in England with a requirement for Clean Code skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Clean Code over the 6 months to 8 December 2021 with a comparison to the same period in the previous 2 years.

Clean Code
UK > England
6 months to
8 Dec 2021
Same period 2020 Same period 2019
Rank 217 256 278
Rank change year-on-year +39 +22 +28
Permanent jobs citing Clean Code 1,821 647 1,485
As % of all permanent jobs advertised in England 1.63% 1.26% 1.21%
As % of the Processes & Methodologies category 1.73% 1.36% 1.30%
Number of salaries quoted 867 600 1,177
10th Percentile £36,250 £34,925 £33,750
25th Percentile £44,375 £43,750 £41,250
Median annual salary (50th Percentile) £62,500 £57,500 £55,000
Median % change year-on-year +8.70% +4.55% -
75th Percentile £80,000 £80,000 £75,000
90th Percentile £95,000 £95,000 £85,000
UK median annual salary £62,500 £57,500 £55,000
% change year-on-year +8.70% +4.55% +4.76%

Clean Code is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in England with a requirement for process or methodology skills.

All Process and Methodology Skills
England
Permanent vacancies with a requirement for process or methodology skills 105,235 47,722 113,810
As % of all permanent IT jobs advertised in England 94.40% 92.92% 92.61%
Number of salaries quoted 72,187 40,421 92,241
10th Percentile £33,000 £33,000 £30,000
25th Percentile £42,750 £42,500 £38,750
Median annual salary (50th Percentile) £60,000 £55,000 £52,500
Median % change year-on-year +9.09% +4.76% -
75th Percentile £78,750 £75,000 £72,447
90th Percentile £96,250 £90,000 £87,500
UK median annual salary £60,000 £55,000 £52,500
% change year-on-year +9.09% +4.76% -

Clean Code
Job Vacancy Trend in England

Job postings citing Clean Code as a proportion of all IT jobs advertised in England.

Job vacancy trend for Clean Code in England

Clean Code
Salary Trend in England

3-month moving average salary quoted in jobs citing Clean Code in England.

Salary trend for Clean Code in England

Clean Code
Salary Histogram in England

Salary distribution for jobs citing Clean Code in England over the 6 months to 8 December 2021.

Salary histogram for Clean Code in England

Clean Code
Job Locations in England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Clean Code within the England region over the 6 months to 8 December 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
London +68 1,109 £75,000 +3.45% 154
South East -24 261 £55,000 - 40
North of England -47 174 £50,000 +5.26% 58
Midlands -49 121 £45,750 +7.65% 32
North West -43 102 £50,000 +5.26% 34
West Midlands -66 76 £47,500 +5.56% 20
South West -16 72 £50,000 +28.21% 17
East Midlands -37 47 £40,000 - 12
East of England -63 44 £47,500 -20.83% 11
North East -4 40 £29,500 -29.76% 7
Yorkshire -92 32 £50,000 +1.52% 17
Clean Code
UK

For the 6 months to 8 December 2021, IT jobs citing Clean Code 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 England region with a requirement for Clean Code.

1 1,022 (56.12%) Agile Software Development
2 722 (39.65%) JavaScript
3 659 (36.19%) Software Engineering
4 614 (33.72%) AWS
5 586 (32.18%) React
6 543 (29.82%) Git (software)
7 525 (28.83%) Finance
8 524 (28.78%) CSS
9 471 (25.86%) Java
10 466 (25.59%) TDD
10 466 (25.59%) Docker
11 464 (25.48%) DevOps
12 460 (25.26%) Azure
13 459 (25.21%) C#
14 452 (24.82%) Microservices
15 444 (24.38%) .NET
16 441 (24.22%) Python
17 419 (23.01%) HTML
18 395 (21.69%) User Experience
19 371 (20.37%) SQL
20 364 (19.99%) Full Stack Development
21 361 (19.82%) Test Automation
22 355 (19.49%) Node.js
23 354 (19.44%) OO
24 342 (18.78%) Social Skills
25 326 (17.90%) RESTful
26 317 (17.41%) Kubernetes
27 311 (17.08%) TypeScript
28 309 (16.97%) Fintech
29 307 (16.86%) Scrum

Clean Code
Co-occurring IT Skills in England 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
1 112 (6.15%) Apache
2 109 (5.99%) Elasticsearch
3 99 (5.44%) Apache Spark
4 94 (5.16%) CMS
5 91 (5.00%) GemFire
6 31 (1.70%) Umbraco
7 25 (1.37%) Sitecore CMS
8 23 (1.26%) Confluence
9 20 (1.10%) Apache Airflow
9 20 (1.10%) EPiServer
9 20 (1.10%) Kentico
10 16 (0.88%) WordPress
11 13 (0.71%) Headless CMS
11 13 (0.71%) nginx
12 12 (0.66%) Gunicorn
13 10 (0.55%) IBM Domino
14 8 (0.44%) Magnolia
14 8 (0.44%) Tomcat
15 7 (0.38%) MS Exchange
16 6 (0.33%) Drupal
Applications
1 27 (1.48%) Microsoft Office
2 22 (1.21%) Adobe XD
3 20 (1.10%) Photoshop
4 16 (0.88%) Adobe Illustrator
5 12 (0.66%) Figma
6 11 (0.60%) Sketch
7 1 (0.055%) Adobe Creative Suite
7 1 (0.055%) Microsoft Excel
7 1 (0.055%) Spreadsheet
Business Applications
1 27 (1.48%) Payment Gateway
2 14 (0.77%) Shopify
3 6 (0.33%) Magento
4 5 (0.27%) SDL Web 8
5 4 (0.22%) Summit
6 3 (0.16%) Salesforce.com CRM
7 2 (0.11%) Distributed Ledger
7 2 (0.11%) R3 Corda
8 1 (0.055%) Academy Revenues and Benefits
Cloud Services
1 614 (33.72%) AWS
2 460 (25.26%) Azure
3 247 (13.56%) GitHub
4 212 (11.64%) GCP
5 169 (9.28%) Serverless
6 128 (7.03%) Amazon Kinesis
7 120 (6.59%) SaaS
8 118 (6.48%) AWS Lambda
9 81 (4.45%) Amazon S3
10 67 (3.68%) npm
11 49 (2.69%) AWS Step Functions
12 41 (2.25%) Heroku
12 41 (2.25%) NuGet
13 39 (2.14%) Amazon EC2
14 31 (1.70%) Cloud Computing
15 28 (1.54%) Azure Service Bus
15 28 (1.54%) OpenShift
16 23 (1.26%) Azure Functions
17 22 (1.21%) Amazon CloudWatch
18 19 (1.04%) Amazon SQS
Communications & Networking
1 106 (5.82%) HTTP
2 54 (2.97%) Internet
3 37 (2.03%) Broadband
4 14 (0.77%) SMTP
5 12 (0.66%) SSH
6 7 (0.38%) MQTT
7 6 (0.33%) DNS
7 6 (0.33%) FTP
7 6 (0.33%) PPP
7 6 (0.33%) RIP
8 5 (0.27%) NFC
8 5 (0.27%) TCP/IP
9 3 (0.16%) AMQP
9 3 (0.16%) Asterisk PBX
9 3 (0.16%) VoIP
10 1 (0.055%) 5G
10 1 (0.055%) SNMP
10 1 (0.055%) Wireless
Database & Business Intelligence
1 289 (15.87%) PostgreSQL
2 288 (15.82%) NoSQL
3 234 (12.85%) Relational Database
4 225 (12.36%) MySQL
5 191 (10.49%) Redis
6 155 (8.51%) SQL Server
7 96 (5.27%) MariaDB
8 93 (5.11%) HBase
9 87 (4.78%) Big Data
10 79 (4.34%) MongoDB
11 74 (4.06%) Amazon DynamoDB
12 29 (1.59%) Blockchain
13 27 (1.48%) Kalido
14 26 (1.43%) Data Warehouse
15 22 (1.21%) RDBMS
16 19 (1.04%) Apache Cassandra
17 18 (0.99%) Azure SQL Database
17 18 (0.99%) Hadoop
18 17 (0.93%) Amazon RDS
19 14 (0.77%) Couchbase
Development Applications
1 543 (29.82%) Git (software)
2 238 (13.07%) Jenkins
3 142 (7.80%) Gradle
4 130 (7.14%) Cucumber
5 124 (6.81%) Cypress.io
6 117 (6.43%) JIRA
7 111 (6.10%) Artifactory
8 106 (5.82%) JUnit
9 98 (5.38%) Storybook
10 94 (5.16%) Mockito
10 94 (5.16%) Sonatype Nexus
11 92 (5.05%) Eclipse
12 91 (5.00%) IntelliJ
12 91 (5.00%) Protractor
13 89 (4.89%) GitLab
14 81 (4.45%) webpack
15 74 (4.06%) Selenium
16 64 (3.51%) TeamCity
17 52 (2.86%) git-flow
17 52 (2.86%) SonarQube
General
1 525 (28.83%) Finance
2 342 (18.78%) Social Skills
3 237 (13.01%) Banking
4 161 (8.84%) Retail
5 157 (8.62%) Inclusion and Diversity
6 144 (7.91%) Marketing
7 128 (7.03%) Analytical Skills
8 121 (6.64%) Law
9 82 (4.50%) Games
10 45 (2.47%) Retail Banking
11 35 (1.92%) Manufacturing
12 26 (1.43%) Organisational Skills
13 22 (1.21%) Public Sector
14 21 (1.15%) Automotive
15 19 (1.04%) Electronics
15 19 (1.04%) Publishing
16 15 (0.82%) Financial Institution
17 13 (0.71%) Advertising
18 10 (0.55%) Military
19 9 (0.49%) Back Office
Job Titles
1 1,011 (55.52%) Developer
2 425 (23.34%) Software Engineer
3 219 (12.03%) Senior Developer
4 164 (9.01%) Front End Developer (Client-Side Developer)
5 140 (7.69%) Software Developer
6 137 (7.52%) Senior Software Engineer
7 109 (5.99%) Full Stack Developer
8 94 (5.16%) C# Developer
8 94 (5.16%) PHP Developer
9 92 (5.05%) React Developer
10 91 (5.00%) Backend Developer
11 82 (4.50%) .NET Developer
12 81 (4.45%) Java Developer
13 66 (3.62%) Lead Developer
14 63 (3.46%) Java Engineer
15 60 (3.29%) Principal Engineer
15 60 (3.29%) Principal Software Engineer
16 54 (2.97%) Mobile Developer
17 47 (2.58%) Lead Software Engineer
18 45 (2.47%) JavaScript Developer
Libraries, Frameworks & Software Standards
1 586 (32.18%) React
2 524 (28.78%) CSS
3 444 (24.38%) .NET
4 419 (23.01%) HTML
5 355 (19.49%) Node.js
6 326 (17.90%) RESTful
7 300 (16.47%) REST
8 291 (15.98%) AngularJS
9 258 (14.17%) Kafka
10 230 (12.63%) .NET Core
11 202 (11.09%) Spring
12 180 (9.88%) RabbitMQ
13 164 (9.01%) Redux
14 152 (8.35%) HTML5
15 147 (8.07%) GraphQL
16 138 (7.58%) JSON
17 124 (6.81%) .NET Framework
17 124 (6.81%) jQuery
17 124 (6.81%) Vue.js
18 120 (6.59%) ASP.NET
Miscellaneous
1 395 (21.69%) User Experience
2 142 (7.80%) Mobile App
3 133 (7.30%) Self-Motivation
4 97 (5.33%) Cloud Native
5 91 (5.00%) Linux Command Line
6 89 (4.89%) Algorithms
7 86 (4.72%) Data Structures
8 50 (2.75%) Social Media
9 49 (2.69%) Greenfield Project
10 48 (2.64%) Virtual Team
11 37 (2.03%) Legacy Applications
11 37 (2.03%) Legacy Code
12 31 (1.70%) Enterprise Software
13 28 (1.54%) Internet of Things
13 28 (1.54%) NHS
14 21 (1.15%) Client/Server
15 20 (1.10%) Xbox
16 19 (1.04%) Video\Live Streaming
17 18 (0.99%) Hedge funds
17 18 (0.99%) Legacy Systems
Operating Systems
1 201 (11.04%) Linux
2 121 (6.64%) Apple iOS
3 107 (5.88%) Unix
4 106 (5.82%) Android
5 44 (2.42%) Windows
6 18 (0.99%) Mac OS
7 14 (0.77%) Ubuntu
8 10 (0.55%) CentOS
9 6 (0.33%) Debian
10 5 (0.27%) Fedora
10 5 (0.27%) Red Hat Enterprise Linux
11 2 (0.11%) Windows 10
11 2 (0.11%) Windows 7
11 2 (0.11%) Windows Server 2012
12 1 (0.055%) Embedded Linux
Processes & Methodologies
1 1,022 (56.12%) Agile Software Development
2 659 (36.19%) Software Engineering
3 466 (25.59%) TDD
4 464 (25.48%) DevOps
5 452 (24.82%) Microservices
6 364 (19.99%) Full Stack Development
7 361 (19.82%) Test Automation
8 354 (19.44%) OO
9 309 (16.97%) Fintech
10 307 (16.86%) Scrum
11 294 (16.14%) Computer Science
12 285 (15.65%) Continuous Integration
13 262 (14.39%) Problem-Solving
14 257 (14.11%) Front End Development
15 200 (10.98%) BDD
16 193 (10.60%) Software Testing
17 192 (10.54%) Mentoring
18 189 (10.38%) SOLID
19 181 (9.94%) SDLC
20 174 (9.56%) E-Commerce
Programming Languages
1 722 (39.65%) JavaScript
2 471 (25.86%) Java
3 459 (25.21%) C#
4 441 (24.22%) Python
5 371 (20.37%) SQL
6 311 (17.08%) TypeScript
7 202 (11.09%) PHP
8 92 (5.05%) Groovy
8 92 (5.05%) Kotlin
9 91 (5.00%) Shell Script
10 77 (4.23%) Go
11 75 (4.12%) C++
12 72 (3.95%) Ruby
13 66 (3.62%) C
14 50 (2.75%) PHP 7
15 46 (2.53%) Apple Swift
16 43 (2.36%) ES6
17 39 (2.14%) T-SQL
18 35 (1.92%) Java 8
19 30 (1.65%) PowerShell
Qualifications
1 295 (16.20%) Degree
2 97 (5.33%) Computer Science Degree
2 97 (5.33%) Oracle Certification
3 96 (5.27%) OCP
4 34 (1.87%) AWS Certification
5 12 (0.66%) Security Cleared
6 11 (0.60%) DBS Check
6 11 (0.60%) MBA
7 10 (0.55%) Master's Degree
8 6 (0.33%) DV Cleared
8 6 (0.33%) Microsoft Certification
8 6 (0.33%) Numerate Degree
8 6 (0.33%) SC Cleared
9 2 (0.11%) PhD
Quality Assurance & Compliance
1 201 (11.04%) QA
2 51 (2.80%) Accessibility
3 30 (1.65%) GDPR
4 12 (0.66%) GRC
4 12 (0.66%) WCAG
5 9 (0.49%) Data Quality
6 1 (0.055%) HL7
6 1 (0.055%) SLA
System Software
1 466 (25.59%) Docker
2 91 (5.00%) HDFS
3 69 (3.79%) VMware Infrastructure
4 4 (0.22%) Firmware
5 2 (0.11%) Active Directory
6 1 (0.055%) Apache Flume
6 1 (0.055%) Varnish
Systems Management
1 317 (17.41%) Kubernetes
2 139 (7.63%) Terraform
3 113 (6.21%) Ansible
4 17 (0.93%) Opscode Chef
5 12 (0.66%) Prometheus
6 8 (0.44%) Argo
6 8 (0.44%) Docker Swarm
7 5 (0.27%) Consul
7 5 (0.27%) Puppet
8 4 (0.22%) Capistrano
9 3 (0.16%) Grafana
10 1 (0.055%) collectd
10 1 (0.055%) Fluentd
10 1 (0.055%) Istio
10 1 (0.055%) Kibana
10 1 (0.055%) logstash
10 1 (0.055%) Nagios
Vendors
1 232 (12.74%) Microsoft
2 113 (6.21%) Google
3 98 (5.38%) VMware
4 97 (5.33%) Okta
5 83 (4.56%) Samsung
6 39 (2.14%) Oracle
7 36 (1.98%) Adobe
8 27 (1.48%) Alibaba
8 27 (1.48%) Apple
9 26 (1.43%) Optimizely
10 25 (1.37%) Sitecore
10 25 (1.37%) Spotify
11 17 (0.93%) New Relic
12 16 (0.88%) Xamarin
13 15 (0.82%) Zend
14 10 (0.55%) Atlassian
14 10 (0.55%) Dynatrace
15 8 (0.44%) Salesforce.com
16 6 (0.33%) FNZ
16 6 (0.33%) InterSystems