Period
to 20 October 2021

The table below looks at the prevalence of the term Legacy Code in permanent job vacancies advertised in the City of London. Included is a benchmarking guide to the salaries offered in vacancies that have cited Legacy Code over the 6 months to 20 October 2021 with a comparison to the same period over the previous 2 years.

Legacy Code
Central London > City of London
6 months to
20 Oct 2021
Same period 2020 Same period 2019
Rank 248 148 295
Rank change year-on-year -100 +147 +26
Permanent jobs citing Legacy Code 17 45 39
As % of all permanent jobs advertised in the City of London 0.29% 1.23% 0.39%
As % of the Miscellaneous category 0.76% 3.21% 1.06%
Number of salaries quoted 17 44 37
10th Percentile " " £55,000
25th Percentile £67,500 £72,500 £56,250
Median annual salary (50th Percentile) £82,500 £83,750 £67,500
Median % change year-on-year -1.49% +24.07% -
75th Percentile £86,250 £97,500 £85,000
90th Percentile £88,750 " £124,500
Central London median annual salary £82,500 £83,750 £68,750
% change year-on-year -1.49% +21.82% +1.85%

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 the City of London with a requirement for generic IT skills.

All Generic IT Skills
City of London
Permanent vacancies with a requirement for generic IT skills 2,236 1,400 3,667
As % of all permanent IT jobs advertised in the City of London 37.57% 38.42% 36.88%
Number of salaries quoted 1,983 1,223 3,160
10th Percentile £42,500 £42,500 £38,000
25th Percentile £56,250 £53,750 £51,250
Median annual salary (50th Percentile) £75,000 £70,000 £70,000
Median % change year-on-year +7.14% - +7.69%
75th Percentile £95,000 £87,500 £85,000
90th Percentile £110,000 £109,750 £103,875
Central London median annual salary £72,500 £70,000 £67,500
% change year-on-year +3.57% +3.70% +3.85%

Legacy Code
Job Vacancy Trend in the City of London

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

Job vacancy trend for Legacy Code in the City of London

Legacy Code
Salary Trend in the City of London

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

Salary trend for Legacy Code in the City of London

Legacy Code
Salary Histogram in the City of London

Salary distribution for jobs citing Legacy Code in the City of London over the 6 months to 20 October 2021.

Salary histogram for Legacy Code in the City of London

For the 6 months to 20 October 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 City of London region with a requirement for Legacy Code.

1 17 (100.00%) Agile Software Development
1 17 (100.00%) DevOps
2 15 (88.24%) Software Engineering
3 11 (64.71%) Microservices
3 11 (64.71%) Coaching
4 9 (52.94%) React
4 9 (52.94%) Continuous Delivery
4 9 (52.94%) Full Stack Development
4 9 (52.94%) Mentoring
4 9 (52.94%) Node.js
4 9 (52.94%) TDD
5 8 (47.06%) AWS
5 8 (47.06%) Terraform
6 7 (41.18%) JavaScript
7 6 (35.29%) TCP/IP
7 6 (35.29%) DNS
7 6 (35.29%) Project Management
7 6 (35.29%) Workflow
7 6 (35.29%) Amazon EC2
7 6 (35.29%) Network Load Balancing
7 6 (35.29%) Amazon ELB
7 6 (35.29%) Cybersecurity
7 6 (35.29%) AWS Certification
7 6 (35.29%) AWS CloudFormation
7 6 (35.29%) Virtual Private Cloud
7 6 (35.29%) AWS Lambda
7 6 (35.29%) Serverless
7 6 (35.29%) AWS Fargate
7 6 (35.29%) Problem-Solving
7 6 (35.29%) Terragrunt

Legacy Code
Co-occurring IT Skills in the City of 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:

Cloud Services
1 8 (47.06%) AWS
2 6 (35.29%) Amazon EC2
2 6 (35.29%) Amazon ECS
2 6 (35.29%) Amazon ELB
2 6 (35.29%) AWS CloudFormation
2 6 (35.29%) AWS Fargate
2 6 (35.29%) AWS Lambda
2 6 (35.29%) Serverless
2 6 (35.29%) Virtual Private Cloud
Communications & Networking
1 6 (35.29%) DNS
1 6 (35.29%) TCP/IP
Development Applications
1 6 (35.29%) Terragrunt
2 2 (11.76%) Jenkins
General
1 6 (35.29%) Social Skills
2 2 (11.76%) Finance
2 2 (11.76%) Retail
2 2 (11.76%) Retail Finance
Job Titles
1 9 (52.94%) Senior Software Engineer
1 9 (52.94%) Software Engineer
2 7 (41.18%) JavaScript Engineer
3 6 (35.29%) DevOps Engineer
4 2 (11.76%) Lead Software Engineer
4 2 (11.76%) Technical Leader
Libraries, Frameworks & Software Standards
1 9 (52.94%) Node.js
1 9 (52.94%) React
2 2 (11.76%) Hibernate
2 2 (11.76%) Lambda Expressions
2 2 (11.76%) Spring
Processes & Methodologies
1 17 (100.00%) Agile Software Development
1 17 (100.00%) DevOps
2 15 (88.24%) Software Engineering
3 11 (64.71%) Coaching
3 11 (64.71%) Microservices
4 9 (52.94%) Continuous Delivery
4 9 (52.94%) Full Stack Development
4 9 (52.94%) Mentoring
4 9 (52.94%) TDD
5 6 (35.29%) Cybersecurity
5 6 (35.29%) Data Pipeline
5 6 (35.29%) Network Load Balancing
5 6 (35.29%) Problem-Solving
5 6 (35.29%) Project Management
5 6 (35.29%) Workflow
6 2 (11.76%) Agile Coaching
6 2 (11.76%) Fintech
6 2 (11.76%) MVC
6 2 (11.76%) People Management
Programming Languages
1 7 (41.18%) JavaScript
2 2 (11.76%) Java
2 2 (11.76%) PHP
2 2 (11.76%) Scala
2 2 (11.76%) TypeScript
Qualifications
1 6 (35.29%) AWS Certification
Systems Management
1 8 (47.06%) Terraform
2 2 (11.76%) Kubernetes