Legacy Systems Job Trends in Middlesex

Legacy System
South East > Middlesex

The table below looks at the prevalence of the term Legacy Systems in permanent job vacancies in Middlesex. Included is a benchmarking guide to the salaries offered in vacancies that cited Legacy Systems over the 6 months leading up to 20 November 2025, comparing them to the same period in the previous two years.

6 months to
20 Nov 2025
Same period 2024 Same period 2023
Rank 37 25 8
Rank change year-on-year -12 -17 +14
Permanent jobs citing Legacy Systems 1 7 2
As % of all permanent jobs in Middlesex 0.78% 8.54% 12.50%
As % of the Miscellaneous category 1.79% 14.29% 28.57%
Number of salaries quoted 1 0 2
10th Percentile - - £93,875
25th Percentile £96,250 - £94,063
Median annual salary (50th Percentile) £97,500 - £98,750
Median % change year-on-year - - -26.85%
75th Percentile £98,750 - £104,063
90th Percentile - - £104,625
South East median annual salary £62,500 £45,000 £55,000
% change year-on-year +38.89% -18.18% -16.98%

All Generic Skills
Middlesex

Legacy Systems falls under the General and Transferable Skills category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring generic IT skills in Middlesex.

Permanent vacancies with a requirement for generic IT skills 56 49 7
As % of all permanent jobs advertised in Middlesex 43.41% 59.76% 43.75%
Number of salaries quoted 9 1 5
10th Percentile £26,650 - £55,100
25th Percentile £33,750 £66,250 £80,000
Median annual salary (50th Percentile) £37,500 £67,500 £85,000
Median % change year-on-year -44.44% -20.59% +41.67%
75th Percentile £41,250 £68,750 £101,250
90th Percentile £57,750 - £103,500
South East median annual salary £45,000 £55,000 £55,000
% change year-on-year -18.18% - -

Legacy Systems
Job Vacancy Trend in Middlesex

Historical trend showing the proportion of permanent IT job postings citing Legacy Systems relative to all permanent IT jobs advertised in Middlesex.

Legacy Systems job vacancy trend in Middlesex

Legacy Systems
Salary Trend in Middlesex

Salary distribution trend for jobs in Middlesex citing Legacy Systems.

Salary distribution trend for jobs in Middlesex citing Legacy Systems

Legacy Systems
Co-Occurring Skills & Capabilities in Middlesex by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

Cloud Services
1 1 (100.00%) AWS
1 1 (100.00%) Datadog
Processes & Methodologies
1 1 (100.00%) CI/CD
1 1 (100.00%) Containerisation
1 1 (100.00%) CRM
1 1 (100.00%) DevSecOps
1 1 (100.00%) Observability
1 1 (100.00%) Site Reliability Engineering
System Software
1 1 (100.00%) Docker
Systems Management
1 1 (100.00%) Kubernetes
1 1 (100.00%) Terraform
Vendors
1 1 (100.00%) Splunk