Period
to 18 January 2022

The table below looks at the prevalence of the term Legacy Code in permanent job vacancies advertised in London. Included is a benchmarking guide to the salaries offered in vacancies that have cited Legacy Code over the 6 months to 18 January 2022 with a comparison to the same period over the previous 2 years.

Legacy Code
England > London
6 months to
18 Jan 2022
Same period 2021 Same period 2020
Rank 518 461 515
Rank change year-on-year -57 +54 +107
Permanent jobs citing Legacy Code 212 38 214
As % of all permanent jobs advertised in London 0.42% 0.16% 0.42%
As % of the Miscellaneous category 0.96% 0.42% 1.09%
Number of salaries quoted 84 35 159
10th Percentile - £56,000 £51,750
25th Percentile £45,000 £63,750 £52,500
Median annual salary (50th Percentile) £52,500 £80,000 £75,000
Median % change year-on-year -34.38% +6.67% +9.09%
75th Percentile £86,875 £93,125 £85,000
90th Percentile £94,625 £97,500 £123,500
England median annual salary £50,000 £47,500 £55,000
% change year-on-year +5.26% -13.64% +4.76%

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 London with a requirement for generic IT skills.

All Generic IT Skills
London
Permanent vacancies with a requirement for generic IT skills 22,108 9,146 19,547
As % of all permanent IT jobs advertised in London 43.70% 38.75% 38.38%
Number of salaries quoted 13,538 7,715 15,408
10th Percentile £42,500 £43,678 £36,500
25th Percentile £55,000 £55,000 £50,000
Median annual salary (50th Percentile) £75,000 £70,000 £67,500
Median % change year-on-year +7.14% +3.70% +3.85%
75th Percentile £95,000 £90,000 £87,500
90th Percentile £118,750 £112,500 £115,000
England median annual salary £60,000 £57,500 £55,000
% change year-on-year +4.35% +4.55% -

Legacy Code
Job Vacancy Trend in London

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

Job vacancy trend for Legacy Code in London

Legacy Code
Salary Trend in London

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

Salary trend for Legacy Code in London

Legacy Code
Salary Histogram in London

Salary distribution for jobs citing Legacy Code in London over the 6 months to 18 January 2022.

Salary histogram for Legacy Code in London

Legacy Code
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Legacy Code within the London region over the 6 months to 18 January 2022. 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 -65 8 £70,000 -15.15% 8
West London - 2 £72,500 - 1
Legacy Code
England

For the 6 months to 18 January 2022, 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 London region with a requirement for Legacy Code.

1 126 (59.43%) React
2 113 (53.30%) JavaScript
3 107 (50.47%) Agile Software Development
4 97 (45.75%) Docker
5 93 (43.87%) AWS
6 91 (42.92%) Software Engineering
7 86 (40.57%) HTML
8 85 (40.09%) CSS
9 82 (38.68%) TDD
10 80 (37.74%) PHP
11 79 (37.26%) Unit Testing
12 78 (36.79%) Finance
13 76 (35.85%) Refactoring
14 73 (34.43%) Fintech
15 70 (33.02%) Full Stack Development
16 61 (28.77%) Laravel
17 59 (27.83%) MySQL
18 57 (26.89%) OO
19 55 (25.94%) Git (software)
20 54 (25.47%) Jenkins
21 52 (24.53%) Node.js
22 51 (24.06%) Java
23 49 (23.11%) Social Skills
24 48 (22.64%) RESTful
25 44 (20.75%) OOP
25 44 (20.75%) Self-Motivation
25 44 (20.75%) Jest
26 43 (20.28%) jQuery
27 42 (19.81%) E-Commerce
27 42 (19.81%) B2B

Legacy Code
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 27 (12.74%) CMS
2 5 (2.36%) Tomcat
3 4 (1.89%) Apache Spark
4 3 (1.42%) Elasticsearch
5 2 (0.94%) Camunda
6 1 (0.47%) IIS
6 1 (0.47%) nginx
6 1 (0.47%) WordPress
Applications
1 6 (2.83%) InVision
2 5 (2.36%) Chatbot
3 3 (1.42%) Adobe XD
3 3 (1.42%) Photoshop
Business Applications
1 12 (5.66%) Magento
2 11 (5.19%) Shopify
3 7 (3.30%) Payment Gateway
Cloud Services
1 93 (43.87%) AWS
2 27 (12.74%) Amazon ECS
3 25 (11.79%) Amazon SQS
4 22 (10.38%) Azure
5 17 (8.02%) GCP
6 16 (7.55%) GitHub
7 10 (4.72%) AWS Lambda
7 10 (4.72%) Serverless
8 9 (4.25%) SaaS
9 8 (3.77%) npm
10 5 (2.36%) AWS CloudFormation
10 5 (2.36%) AWS Fargate
11 4 (1.89%) Amazon EC2
11 4 (1.89%) Figma
11 4 (1.89%) GitHub Actions
12 3 (1.42%) Amazon ELB
12 3 (1.42%) Datadog
12 3 (1.42%) Heroku
12 3 (1.42%) Virtual Private Cloud
13 1 (0.47%) IaaS
Communications & Networking
1 6 (2.83%) Intranet
2 5 (2.36%) SMS
3 3 (1.42%) DNS
3 3 (1.42%) TCP/IP
4 1 (0.47%) Firewall
Database & Business Intelligence
1 59 (27.83%) MySQL
2 25 (11.79%) PostgreSQL
2 25 (11.79%) Redis
3 20 (9.43%) MongoDB
4 9 (4.25%) Apache Cassandra
5 5 (2.36%) Hazelcast
6 4 (1.89%) Relational Database
7 3 (1.42%) Blockchain
7 3 (1.42%) NoSQL
8 2 (0.94%) Amazon DynamoDB
8 2 (0.94%) SQL Server
9 1 (0.47%) Azure SQL Database
9 1 (0.47%) MariaDB
9 1 (0.47%) SQL Server 2016
Development Applications
1 55 (25.94%) Git (software)
2 54 (25.47%) Jenkins
3 36 (16.98%) PHPUnit
4 30 (14.15%) CircleCI
5 17 (8.02%) JUnit
6 16 (7.55%) Jasmine
7 12 (5.66%) Cypress.io
7 12 (5.66%) webpack
8 9 (4.25%) Mocha
9 8 (3.77%) Gatling
9 8 (3.77%) JMeter
9 8 (3.77%) Maven
9 8 (3.77%) Selenium
10 5 (2.36%) Hamcrest
10 5 (2.36%) REST Assured
10 5 (2.36%) TeamCity
11 3 (1.42%) Terragrunt
12 1 (0.47%) Gradle
12 1 (0.47%) gulp
General
1 78 (36.79%) Finance
2 49 (23.11%) Social Skills
3 37 (17.45%) Retail
4 36 (16.98%) Games
5 25 (11.79%) Banking
6 19 (8.96%) Publishing
7 10 (4.72%) Analytical Skills
8 9 (4.25%) Legal
9 5 (2.36%) Music Industry
9 5 (2.36%) Retail Finance
10 3 (1.42%) Advertising
10 3 (1.42%) Marketing
11 2 (0.94%) Front Office
12 1 (0.47%) Documentation Skills
Job Titles
1 100 (47.17%) Developer
2 62 (29.25%) Software Engineer
3 54 (25.47%) PHP Developer
4 35 (16.51%) PHP Developer - Fintech
4 35 (16.51%) PHP Laravel Developer
5 23 (10.85%) Senior Software Engineer
6 17 (8.02%) Senior Developer
7 13 (6.13%) Integration Engineer
7 13 (6.13%) Software Integration Engineer
8 10 (4.72%) .NET Software Engineer
9 8 (3.77%) Front End Developer (Client-Side Developer)
9 8 (3.77%) Lead Developer
10 7 (3.30%) Lead Software Developer
10 7 (3.30%) Software Developer
11 6 (2.83%) Full Stack Developer
11 6 (2.83%) Java Developer
11 6 (2.83%) Senior Front-End Developer
11 6 (2.83%) Senior PHP Developer
11 6 (2.83%) Technical Leader
12 5 (2.36%) Lead Software Engineer
Libraries, Frameworks & Software Standards
1 126 (59.43%) React
2 86 (40.57%) HTML
3 85 (40.09%) CSS
4 61 (28.77%) Laravel
5 52 (24.53%) Node.js
6 48 (22.64%) RESTful
7 44 (20.75%) Jest
8 43 (20.28%) jQuery
9 41 (19.34%) LAMP
10 36 (16.98%) AngularJS
11 28 (13.21%) .NET
12 24 (11.32%) REST
13 23 (10.85%) Django
14 21 (9.91%) Symfony
14 21 (9.91%) Vue.js
15 18 (8.49%) Kafka
16 12 (5.66%) Express
16 12 (5.66%) Sass
17 11 (5.19%) Redux
17 11 (5.19%) Spring
Miscellaneous
1 44 (20.75%) Self-Motivation
2 34 (16.04%) User Experience
3 16 (7.55%) Blog
3 16 (7.55%) Enterprise Software
4 7 (3.30%) Greenfield Project
4 7 (3.30%) Mobile App
5 6 (2.83%) Cloud Native
5 6 (2.83%) Contract for Difference
5 6 (2.83%) Equities
5 6 (2.83%) Public Cloud
5 6 (2.83%) Spread Betting
6 5 (2.36%) Legacy Systems
7 4 (1.89%) Virtual Team
8 3 (1.42%) W3C
9 2 (0.94%) Legacy Applications
10 1 (0.47%) Animation
Operating Systems
1 17 (8.02%) Android
2 10 (4.72%) Apple iOS
3 5 (2.36%) Windows
4 1 (0.47%) Linux
4 1 (0.47%) Unix
Processes & Methodologies
1 107 (50.47%) Agile Software Development
2 91 (42.92%) Software Engineering
3 82 (38.68%) TDD
4 79 (37.26%) Unit Testing
5 76 (35.85%) Refactoring
6 73 (34.43%) Fintech
7 70 (33.02%) Full Stack Development
8 57 (26.89%) OO
9 44 (20.75%) OOP
10 42 (19.81%) B2B
10 42 (19.81%) E-Commerce
11 41 (19.34%) DevOps
12 36 (16.98%) Responsive Web Design
13 35 (16.51%) Data Privacy
14 32 (15.09%) Data-Driven Decision Making
14 32 (15.09%) Product Strategy
15 31 (14.62%) Test Automation
16 25 (11.79%) Coaching
16 25 (11.79%) Mentoring
17 24 (11.32%) Prototyping
Programming Languages
1 113 (53.30%) JavaScript
2 80 (37.74%) PHP
3 51 (24.06%) Java
4 41 (19.34%) PHP 7
4 41 (19.34%) Python
5 26 (12.26%) TypeScript
6 17 (8.02%) C
7 13 (6.13%) Go
8 12 (5.66%) C#
9 11 (5.19%) Ruby
10 9 (4.25%) ES6
10 9 (4.25%) Java 11
10 9 (4.25%) Scala
11 7 (3.30%) Kotlin
12 6 (2.83%) SQL
13 4 (1.89%) Apple Swift
13 4 (1.89%) Objective-C
14 3 (1.42%) Solidity
15 1 (0.47%) Shell Script
Qualifications
1 10 (4.72%) Degree
2 8 (3.77%) Computer Science Degree
3 3 (1.42%) AWS Certification
4 1 (0.47%) MBA
Quality Assurance & Compliance
1 28 (13.21%) QA
2 4 (1.89%) Accessibility
3 2 (0.94%) GDPR
System Software
1 97 (45.75%) Docker
2 5 (2.36%) Apache ZooKeeper
Systems Management
1 29 (13.68%) Kubernetes
1 29 (13.68%) Terraform
2 1 (0.47%) Puppet
Vendors
1 16 (7.55%) Zend
2 5 (2.36%) Facebook
2 5 (2.36%) Instagram
2 5 (2.36%) Twitter
2 5 (2.36%) YouTube
3 3 (1.42%) Adobe
4 1 (0.47%) Google
4 1 (0.47%) Microsoft