Period
to 23 September 2021

The table below looks at the prevalence of the term Legacy Code in permanent job vacancies advertised in England. Included is a benchmarking guide to the salaries offered in vacancies that have cited Legacy Code over the 6 months to 23 September 2021 with a comparison to the same period over the previous 2 years.

Legacy Code
UK > England
6 months to
23 Sep 2021
Same period 2020 Same period 2019
Rank 677 549 760
Rank change year-on-year -128 +211 +64
Permanent jobs citing Legacy Code 317 133 327
As % of all permanent jobs advertised in England 0.29% 0.29% 0.25%
As % of the Miscellaneous category 0.72% 0.81% 0.71%
Number of salaries quoted 175 122 304
10th Percentile £35,000 £32,550 £37,500
25th Percentile £38,750 £36,438 £42,500
Median annual salary (50th Percentile) £50,000 £52,500 £55,000
Median % change year-on-year -4.76% -4.55% +10.00%
75th Percentile £72,500 £88,750 £77,500
90th Percentile £86,250 £97,500 £85,000
UK median annual salary £52,500 £52,500 £55,000
% change year-on-year - -4.55% +10.00%

Legacy Code is in the Generic IT Skills 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 generic IT skills.

All Generic IT Skills
England
Permanent vacancies with a requirement for generic IT skills 43,790 16,482 45,892
As % of all permanent IT jobs advertised in England 40.60% 36.20% 35.47%
Number of salaries quoted 26,605 13,529 35,230
10th Percentile £32,750 £33,750 £30,000
25th Percentile £42,500 £42,500 £38,500
Median annual salary (50th Percentile) £60,000 £60,000 £55,000
Median % change year-on-year - +9.09% +4.76%
75th Percentile £81,250 £80,000 £73,750
90th Percentile £98,750 £102,500 £91,250
UK median annual salary £60,000 £57,500 £53,000
% change year-on-year +4.35% +8.49% +0.95%

Legacy Code
Job Vacancy Trend in England

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

Job vacancy trend for Legacy Code in England

Legacy Code
Salary Trend in England

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

Salary trend for Legacy Code in England

Legacy Code
Salary Histogram in England

Salary distribution for jobs citing Legacy Code in England over the 6 months to 23 September 2021.

Salary histogram for Legacy Code in England

Legacy 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 Legacy Code within the England region over the 6 months to 23 September 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 -113 183 £70,000 -15.15% 25
North of England -101 62 £50,000 +28.21% 10
South East -133 37 £45,000 +12.50% 7
Yorkshire -66 36 £57,500 +53.33% 3
North West -67 22 £40,000 +12.68% 7
Midlands -117 18 £40,000 +9.59% 6
West Midlands -99 13 £70,000 +69.70% 5
South West -97 11 £60,000 +20.00% 4
East Midlands -72 5 £37,500 +4.17% 1
East of England - 5 £42,500 - 1
North East -51 4 £41,250 -6.78%
Legacy Code
UK

For the 6 months to 23 September 2021, IT jobs citing Legacy 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 Legacy Code.

1 172 (54.26%) JavaScript
2 165 (52.05%) React
3 153 (48.26%) Agile Software Development
4 138 (43.53%) HTML
5 136 (42.90%) Software Engineering
6 121 (38.17%) CSS
7 112 (35.33%) Unit Testing
7 112 (35.33%) Docker
8 107 (33.75%) Full Stack Development
9 105 (33.12%) AWS
10 97 (30.60%) PHP
10 97 (30.60%) TDD
11 85 (26.81%) Git (software)
12 83 (26.18%) Java
13 76 (23.97%) User Experience
14 74 (23.34%) Finance
15 71 (22.40%) MySQL
16 67 (21.14%) .NET
16 67 (21.14%) OO
17 61 (19.24%) AngularJS
18 60 (18.93%) Fintech
18 60 (18.93%) Python
19 59 (18.61%) Node.js
20 58 (18.30%) C#
20 58 (18.30%) Mentoring
21 57 (17.98%) DevOps
22 55 (17.35%) Test Automation
22 55 (17.35%) Refactoring
23 53 (16.72%) RESTful
23 53 (16.72%) Retail

Legacy 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 11 (3.47%) Apache
1 11 (3.47%) CMS
1 11 (3.47%) Elasticsearch
2 8 (2.52%) Tomcat
2 8 (2.52%) WordPress
3 4 (1.26%) Umbraco
4 3 (0.95%) Confluence
4 3 (0.95%) Jetty
4 3 (0.95%) SharePoint
4 3 (0.95%) SharePoint 2013
5 2 (0.63%) Camunda
6 1 (0.32%) nginx
6 1 (0.32%) Oracle SOA Suite
Applications
1 3 (0.95%) Microsoft Excel
2 1 (0.32%) Figma
Business Applications
1 28 (8.83%) Magento
2 20 (6.31%) Shopify
3 18 (5.68%) Payment Gateway
4 1 (0.32%) Oracle Receivables
Cloud Services
1 105 (33.12%) AWS
2 40 (12.62%) Azure
3 27 (8.52%) Amazon ECS
4 23 (7.26%) Amazon SQS
5 17 (5.36%) Serverless
6 14 (4.42%) PaaS
6 14 (4.42%) SaaS
7 12 (3.79%) AWS CloudFormation
8 10 (3.15%) Amazon EC2
9 9 (2.84%) Cloud Computing
9 9 (2.84%) GitHub
10 8 (2.52%) Amazon CloudWatch
10 8 (2.52%) Amazon ElastiCache
11 7 (2.21%) AWS Lambda
11 7 (2.21%) Datadog
12 6 (1.89%) Amazon ELB
12 6 (1.89%) AWS Fargate
12 6 (1.89%) Virtual Private Cloud
13 4 (1.26%) Amazon S3
13 4 (1.26%) GitHub Actions
Communications & Networking
1 8 (2.52%) Internet
2 6 (1.89%) DNS
2 6 (1.89%) TCP/IP
3 1 (0.32%) Ethernet
3 1 (0.32%) Firewall
3 1 (0.32%) VoIP
3 1 (0.32%) Wi-Fi
Database & Business Intelligence
1 71 (22.40%) MySQL
2 47 (14.83%) Redis
3 30 (9.46%) PostgreSQL
4 20 (6.31%) NoSQL
5 17 (5.36%) Relational Database
6 16 (5.05%) SQL Server
7 14 (4.42%) MongoDB
8 11 (3.47%) Apache Cassandra
8 11 (3.47%) Big Data
8 11 (3.47%) Oracle Database
9 8 (2.52%) InterSystems Cache
10 6 (1.89%) Amazon Aurora
10 6 (1.89%) MariaDB
11 5 (1.58%) RDBMS
12 4 (1.26%) Amazon DynamoDB
13 3 (0.95%) Blockchain
14 2 (0.63%) SQL Server Reporting Services
15 1 (0.32%) Azure SQL Database
15 1 (0.32%) Oracle Database 12c
Development Applications
1 85 (26.81%) Git (software)
2 50 (15.77%) Jenkins
3 38 (11.99%) PHPUnit
3 38 (11.99%) webpack
4 24 (7.57%) CircleCI
5 22 (6.94%) Babel
6 11 (3.47%) JUnit
6 11 (3.47%) Maven
7 10 (3.15%) Terragrunt
8 6 (1.89%) JIRA
8 6 (1.89%) Team Foundation Server
9 5 (1.58%) Visual Studio
10 4 (1.26%) Artifactory
10 4 (1.26%) Gradle
10 4 (1.26%) TeamCity
11 3 (0.95%) Bitbucket
11 3 (0.95%) Cypress.io
11 3 (0.95%) Mocha
11 3 (0.95%) PhpStorm
11 3 (0.95%) Xdebug
General
1 74 (23.34%) Finance
2 53 (16.72%) Retail
3 51 (16.09%) Social Skills
4 47 (14.83%) Games
5 14 (4.42%) Banking
5 14 (4.42%) Retail Finance
6 5 (1.58%) Marketing
7 4 (1.26%) Front Office
8 3 (0.95%) Documentation Skills
8 3 (0.95%) Law
8 3 (0.95%) Publishing
9 2 (0.63%) Legal
10 1 (0.32%) Advertising
10 1 (0.32%) Aerospace
10 1 (0.32%) Analytical Skills
10 1 (0.32%) Automotive
10 1 (0.32%) Avionics
10 1 (0.32%) Military
Job Titles
1 170 (53.63%) Developer
2 90 (28.39%) Software Engineer
3 46 (14.51%) Senior Software Engineer
4 44 (13.88%) PHP Developer
5 24 (7.57%) Full Stack Developer
5 24 (7.57%) PHP Laravel Developer
6 22 (6.94%) PHP Developer - Fintech
7 21 (6.62%) Java Developer
8 17 (5.36%) Senior Developer
9 16 (5.05%) JavaScript Engineer
9 16 (5.05%) Lead Software Engineer
10 13 (4.10%) React Developer
11 12 (3.79%) C# Developer
11 12 (3.79%) Lead Developer
12 11 (3.47%) .NET Developer
12 11 (3.47%) .NET Software Engineer
12 11 (3.47%) Front End Developer (Client-Side Developer)
12 11 (3.47%) Lead Java Developer
13 10 (3.15%) DevOps Engineer
13 10 (3.15%) Software Integration Engineer
Libraries, Frameworks & Software Standards
1 165 (52.05%) React
2 138 (43.53%) HTML
3 121 (38.17%) CSS
4 67 (21.14%) .NET
5 61 (19.24%) AngularJS
6 59 (18.61%) Node.js
7 53 (16.72%) RESTful
8 49 (15.46%) REST
9 48 (15.14%) Redux
10 44 (13.88%) jQuery
11 42 (13.25%) Laravel
12 38 (11.99%) Jest
13 34 (10.73%) Kafka
14 31 (9.78%) Django
14 31 (9.78%) Vue.js
15 30 (9.46%) Spring
16 29 (9.15%) Sass
17 28 (8.83%) Web Services
18 27 (8.52%) GraphQL
19 26 (8.20%) LAMP
Miscellaneous
1 76 (23.97%) User Experience
2 31 (9.78%) Mobile App
3 29 (9.15%) Greenfield Project
4 22 (6.94%) Self-Motivation
5 21 (6.62%) Legacy Systems
6 10 (3.15%) Data Protection Act
7 9 (2.84%) Virtual Team
8 8 (2.52%) Blog
9 6 (1.89%) Algorithms
10 5 (1.58%) Fibre Optics
11 4 (1.26%) Enterprise Software
11 4 (1.26%) Podcast
12 3 (0.95%) Animation
13 2 (0.63%) Client/Server
13 2 (0.63%) Legacy Applications
14 1 (0.32%) Cybercrime
14 1 (0.32%) Device Driver
14 1 (0.32%) Foreign Exchange (FX)
14 1 (0.32%) NHS
14 1 (0.32%) Public Cloud
Operating Systems
1 16 (5.05%) Linux
2 13 (4.10%) Android
3 11 (3.47%) Apple iOS
4 8 (2.52%) Ubuntu
5 5 (1.58%) CentOS
6 2 (0.63%) Unix
7 1 (0.32%) VxWorks
7 1 (0.32%) Windows
Processes & Methodologies
1 153 (48.26%) Agile Software Development
2 136 (42.90%) Software Engineering
3 112 (35.33%) Unit Testing
4 107 (33.75%) Full Stack Development
5 97 (30.60%) TDD
6 67 (21.14%) OO
7 60 (18.93%) Fintech
8 58 (18.30%) Mentoring
9 57 (17.98%) DevOps
10 55 (17.35%) Refactoring
10 55 (17.35%) Test Automation
11 48 (15.14%) Scrum
12 45 (14.20%) OOP
13 42 (13.25%) Microservices
14 41 (12.93%) Clean Code
15 36 (11.36%) E-Commerce
16 33 (10.41%) Coaching
17 30 (9.46%) Pair Programming
17 30 (9.46%) SOLID
18 28 (8.83%) Prototyping
Programming Languages
1 172 (54.26%) JavaScript
2 97 (30.60%) PHP
3 83 (26.18%) Java
4 60 (18.93%) Python
5 58 (18.30%) C#
6 53 (16.72%) TypeScript
7 47 (14.83%) SQL
8 28 (8.83%) Scala
9 25 (7.89%) PHP 7
10 22 (6.94%) ES6
10 22 (6.94%) Kotlin
11 15 (4.73%) Java 8
12 11 (3.47%) Java 9
13 10 (3.15%) Java 11
14 7 (2.21%) C++
14 7 (2.21%) Ruby
15 5 (1.58%) Clojure
16 4 (1.26%) Apple Swift
16 4 (1.26%) F#
16 4 (1.26%) Objective-C
Qualifications
1 21 (6.62%) Degree
2 6 (1.89%) AWS Certification
2 6 (1.89%) MBA
2 6 (1.89%) Security Cleared
3 5 (1.58%) Computer Science Degree
4 4 (1.26%) SC Cleared
5 1 (0.32%) DV Cleared
Quality Assurance & Compliance
1 35 (11.04%) QA
2 11 (3.47%) Accessibility
3 7 (2.21%) ISO/IEC 27001
4 1 (0.32%) GDPR
4 1 (0.32%) HIPAA
4 1 (0.32%) SLA
4 1 (0.32%) SOC 2
System Software
1 112 (35.33%) Docker
Systems Management
1 39 (12.30%) Kubernetes
2 29 (9.15%) Terraform
3 22 (6.94%) Graphite
4 20 (6.31%) Opscode Chef
5 14 (4.42%) Prometheus
6 11 (3.47%) Ansible
7 8 (2.52%) Grafana
7 8 (2.52%) Kibana
7 8 (2.52%) logstash
7 8 (2.52%) ZABBIX
8 6 (1.89%) Puppet
Vendors
1 16 (5.05%) Oracle
2 14 (4.42%) Splunk
3 10 (3.15%) Microsoft
4 6 (1.89%) Google
5 3 (0.95%) Zend
6 2 (0.63%) Dynatrace
6 2 (0.63%) Xamarin
7 1 (0.32%) Atlassian
7 1 (0.32%) Facebook
7 1 (0.32%) Telerik