Legacy Systems Job Trends in London

Legacy System
England > London

The table below looks at the prevalence of the term Legacy Systems in permanent job vacancies in London. Included is a benchmarking guide to the salaries offered in vacancies that cited Legacy Systems over the 6 months leading up to 13 September 2026, comparing them to the same period in the previous two years.

6 months to
13 Sep 2026
Same period 2025 Same period 2024
Rank 263 241 357
Rank change year-on-year -22 +116 -13
Permanent jobs citing Legacy Systems 184 161 97
As % of all permanent jobs in London 0.74% 1.35% 0.51%
As % of the Miscellaneous category 2.18% 2.89% 1.25%
Number of salaries quoted 123 73 77
10th Percentile £50,000 £55,100 £41,700
25th Percentile £65,875 £56,250 £48,750
Median annual salary (50th Percentile) £82,500 £75,000 £80,000
Median % change year-on-year +10.00% -6.25% -5.88%
75th Percentile £93,375 £88,750 £132,500
90th Percentile £120,000 £97,500 £180,000
England median annual salary £67,500 £65,000 £60,000
% change year-on-year +3.85% +8.33% -7.69%

All Generic Skills
London

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 London.

Permanent vacancies with a requirement for generic IT skills 8,428 5,563 7,780
As % of all permanent jobs advertised in London 34.08% 46.48% 40.61%
Number of salaries quoted 5,043 3,287 4,753
10th Percentile £41,250 £38,000 £42,500
25th Percentile £55,000 £53,750 £55,000
Median annual salary (50th Percentile) £77,500 £77,500 £80,000
Median % change year-on-year - -3.13% +6.67%
75th Percentile £100,000 £105,000 £108,750
90th Percentile £115,000 £135,000 £140,000
England median annual salary £57,500 £55,000 £60,000
% change year-on-year +4.55% -8.33% -7.69%

Legacy Systems
Job Vacancy Trend in London

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

Legacy Systems job vacancy trend in London

Legacy Systems
Salary Trend in London

Salary distribution trend for jobs in London citing Legacy Systems.

Salary distribution trend for jobs in London citing Legacy Systems

Legacy Systems
Salary Histogram in London

Salary distribution for jobs citing Legacy Systems in London over the 6 months to 13 September 2026.

Salary histogram for Legacy Systems in London

Legacy Systems
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 Systems within the London region over the 6 months to 13 September 2026. 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
Jobs
Central London +4 24 £85,000 -2.86% 22
West London -9 16 £80,000 - 4
South London +5 4 £82,500 -
Legacy Systems
England

Legacy Systems
Co-Occurring Skills & Capabilities in London 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:

Application Platforms
1 13 (7.07%) Anypoint
1 13 (7.07%) Mule
2 12 (6.52%) Confluence
3 3 (1.63%) Apache
3 3 (1.63%) Apache Airflow
3 3 (1.63%) IIS
4 2 (1.09%) CMS
4 2 (1.09%) Microsoft Exchange
5 1 (0.54%) CICS
5 1 (0.54%) NServiceBus
Applications
1 11 (5.98%) MS Visio
2 1 (0.54%) Spreadsheet
Business Applications
1 5 (2.72%) SAP S/4HANA
2 4 (2.17%) Workday HCM
3 2 (1.09%) Dynamics CRM
3 2 (1.09%) NetSuite
3 2 (1.09%) SAP MDG
4 1 (0.54%) Misys Equation
4 1 (0.54%) Misys Midas
4 1 (0.54%) SAP HCM
4 1 (0.54%) Visualfiles
Cloud Services
1 53 (28.80%) AWS
1 53 (28.80%) Azure
2 17 (9.24%) Cloud Computing
3 14 (7.61%) AWS CloudFormation
4 11 (5.98%) Lucidchart
5 10 (5.43%) Azure DevOps
5 10 (5.43%) Serverless
6 8 (4.35%) SaaS
7 7 (3.80%) IaaS
7 7 (3.80%) PaaS
8 6 (3.26%) GCP
9 5 (2.72%) Azure ExpressRoute
9 5 (2.72%) Entra ID
10 4 (2.17%) GitHub
10 4 (2.17%) Power Platform
11 3 (1.63%) Amazon SQS
11 3 (1.63%) Azure AKS
11 3 (1.63%) GitHub Copilot
12 2 (1.09%) n8n
12 2 (1.09%) Snowflake
Communications & Networking
1 13 (7.07%) SSL
2 7 (3.80%) DNS
2 7 (3.80%) Firewall
2 7 (3.80%) Network Security
2 7 (3.80%) WAN
3 5 (2.72%) LAN
3 5 (2.72%) TCP/IP
3 5 (2.72%) VPN
3 5 (2.72%) Wi-Fi
4 2 (1.09%) DHCP
4 2 (1.09%) SAN
4 2 (1.09%) SD-WAN
4 2 (1.09%) Wireless
5 1 (0.54%) Broadband
5 1 (0.54%) DMARC
Database & Business Intelligence
1 16 (8.70%) PostgreSQL
2 15 (8.15%) Db2
3 10 (5.43%) DTS
4 6 (3.26%) SQL Server
5 4 (2.17%) Power BI
6 3 (1.63%) Data Lake
6 3 (1.63%) Relational Database
6 3 (1.63%) SAP Data Services
7 2 (1.09%) Data Warehouse
7 2 (1.09%) Elasticsearch
7 2 (1.09%) MySQL
7 2 (1.09%) Star Schema
8 1 (0.54%) Amazon Athena
8 1 (0.54%) Azure SQL Database
8 1 (0.54%) Data Vault
8 1 (0.54%) Delta Lake
8 1 (0.54%) Parquet
8 1 (0.54%) SAP BW
8 1 (0.54%) Semantic Layer
8 1 (0.54%) Snowflake Schema
Development Applications
1 7 (3.80%) JIRA
2 6 (3.26%) Selenium
3 5 (2.72%) Jasmine
3 5 (2.72%) Mocha
3 5 (2.72%) NUnit
4 4 (2.17%) Git
5 3 (1.63%) Jenkins
6 2 (1.09%) JMeter
6 2 (1.09%) JUnit
6 2 (1.09%) Mockito
7 1 (0.54%) Bitbucket
7 1 (0.54%) Cucumber
7 1 (0.54%) kappa
General
1 64 (34.78%) Finance
2 31 (16.85%) Analytical Skills
3 29 (15.76%) Social Skills
4 24 (13.04%) Law
5 19 (10.33%) Public Sector
6 16 (8.70%) Influencing Skills
7 14 (7.61%) Inclusion and Diversity
8 13 (7.07%) Banking
9 7 (3.80%) Cyber-Physical System
10 6 (3.26%) Retail
11 5 (2.72%) Investment Banking
12 4 (2.17%) Back Office
12 4 (2.17%) General Ledger
12 4 (2.17%) Legal
13 3 (1.63%) Financial Institution
13 3 (1.63%) Manufacturing
13 3 (1.63%) Marketing
14 2 (1.09%) Front Office
14 2 (1.09%) Presentation Skills
15 1 (0.54%) Advertising
Job Titles
1 44 (23.91%) Senior
2 41 (22.28%) Architect
3 32 (17.39%) Developer
4 31 (16.85%) Consultant
5 26 (14.13%) Solutions Architect
6 24 (13.04%) Lead
7 18 (9.78%) Migration Consultant
7 18 (9.78%) Software Engineer
8 14 (7.61%) Lead Developer
9 13 (7.07%) MuleSoft Developer
9 13 (7.07%) Professional Services Consultant
10 11 (5.98%) Senior Consultant
11 10 (5.43%) Senior Architect
12 8 (4.35%) Senior Solutions Architect
12 8 (4.35%) Workday Consultant
13 7 (3.80%) DevOps Engineer
13 7 (3.80%) Research Engineer
13 7 (3.80%) Security Engineer
13 7 (3.80%) Senior Developer
13 7 (3.80%) Senior Software Engineer
Libraries, Frameworks & Software Standards
1 21 (11.41%) Spring Boot
2 19 (10.33%) Kafka
3 18 (9.78%) Spring
4 17 (9.24%) .NET
5 15 (8.15%) Node.js
6 14 (7.61%) OAuth
6 14 (7.61%) OAuth2
6 14 (7.61%) React
7 13 (7.07%) JWT
7 13 (7.07%) Middleware
7 13 (7.07%) MUnit
7 13 (7.07%) RAML
7 13 (7.07%) RESTful
8 10 (5.43%) Terraform
9 9 (4.89%) REST
10 5 (2.72%) Hibernate
10 5 (2.72%) HTML
10 5 (2.72%) Jest
10 5 (2.72%) JPA
10 5 (2.72%) JSON
Miscellaneous
1 31 (16.85%) Cloud Native
2 19 (10.33%) Onboarding
3 18 (9.78%) Data Centre
3 18 (9.78%) iSeries
4 17 (9.24%) Enterprise Cloud
5 14 (7.61%) Distributed Computing
5 14 (7.61%) Mainframe
6 10 (5.43%) EPoS
6 10 (5.43%) Greenfield Project
7 9 (4.89%) AI Agents
7 9 (4.89%) AS400
8 8 (4.35%) Data Structures
8 8 (4.35%) Reinsurance
9 7 (3.80%) Operational Technology
10 6 (3.26%) Distributed Systems
10 6 (3.26%) Enterprise Software
10 6 (3.26%) Fixed Income
10 6 (3.26%) Foreign Exchange (FX)
11 5 (2.72%) Derivative
11 5 (2.72%) Management Information System
Operating Systems
1 9 (4.89%) Windows
2 5 (2.72%) Linux
3 3 (1.63%) Android
3 3 (1.63%) Apple iOS
Processes & Methodologies
1 65 (35.33%) Migration
2 50 (27.17%) Mentoring
3 48 (26.09%) CI/CD
4 42 (22.83%) AI
5 41 (22.28%) DevOps
5 41 (22.28%) Microservices
6 39 (21.20%) Software Engineering
7 38 (20.65%) Agile
8 37 (20.11%) Event-Driven
9 35 (19.02%) Continuous Improvement
10 31 (16.85%) Problem-Solving
11 28 (15.22%) Event-Driven Architecture
12 27 (14.67%) Roadmaps
13 25 (13.59%) Project Delivery
13 25 (13.59%) Test Automation
14 23 (12.50%) Machine Learning
15 20 (10.87%) Stakeholder Management
16 18 (9.78%) Configuration Management
16 18 (9.78%) Containerisation
16 18 (9.78%) Root Cause Analysis
Programming Languages
1 36 (19.57%) Python
2 27 (14.67%) Java
3 18 (9.78%) C#
4 16 (8.70%) JavaScript
5 15 (8.15%) SQL
6 14 (7.61%) TypeScript
7 13 (7.07%) DataWeave
7 13 (7.07%) RPG
8 3 (1.63%) Go
8 3 (1.63%) Kotlin
8 3 (1.63%) Swift
8 3 (1.63%) VBA
8 3 (1.63%) VBScript
9 2 (1.09%) C++
9 2 (1.09%) COBOL
9 2 (1.09%) R
9 2 (1.09%) Ruby
9 2 (1.09%) Scala
9 2 (1.09%) Shell Script
10 1 (0.54%) JCL
Qualifications
1 44 (23.91%) Security Cleared
2 29 (15.76%) SC Cleared
3 15 (8.15%) Degree
4 10 (5.43%) AWS Certification
5 7 (3.80%) Master's Degree
6 4 (2.17%) DBS Check
6 4 (2.17%) ITIL Certification
7 2 (1.09%) Azure Certification
8 1 (0.54%) BPSS Clearance
8 1 (0.54%) DV Cleared
8 1 (0.54%) Microsoft Certification
8 1 (0.54%) OCP
8 1 (0.54%) Oracle Certification
8 1 (0.54%) PMI Certification
8 1 (0.54%) PMP
8 1 (0.54%) TOGAF Certification
Quality Assurance & Compliance
1 11 (5.98%) Data Quality
2 6 (3.26%) QA
3 5 (2.72%) SLA
4 2 (1.09%) Accessibility
4 2 (1.09%) PMO
5 1 (0.54%) GDPR
System Software
1 13 (7.07%) Docker
2 7 (3.80%) Active Directory
2 7 (3.80%) VMware Infrastructure
3 5 (2.72%) Hyper-V
4 4 (2.17%) Virtual Machines
5 2 (1.09%) vSphere
Systems Management
1 14 (7.61%) Kubernetes
2 13 (7.07%) CloudHub
2 13 (7.07%) Progress Chef
2 13 (7.07%) Puppet
3 2 (1.09%) Kibana
3 2 (1.09%) Single Sign-On
3 2 (1.09%) WhatsUp Gold
Vendors
1 25 (13.59%) SAP
2 20 (10.87%) Microsoft
3 18 (9.78%) IBM
4 16 (8.70%) Salesforce
5 13 (7.07%) MuleSoft
5 13 (7.07%) ServiceNow
6 12 (6.52%) Workday
7 8 (4.35%) VMware
8 7 (3.80%) Guidewire
9 5 (2.72%) Oracle
10 4 (2.17%) HP
11 3 (1.63%) Databricks
11 3 (1.63%) Google
11 3 (1.63%) YouTube
12 2 (1.09%) Broadcom
12 2 (1.09%) Dynatrace
12 2 (1.09%) Meraki
12 2 (1.09%) Splunk
12 2 (1.09%) Ubiquiti
12 2 (1.09%) Veeam