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 27 July 2026, comparing them to the same period in the previous two years.

6 months to
27 Jul 2026
Same period 2025 Same period 2024
Rank 249 287 394
Rank change year-on-year +38 +107 -37
Permanent jobs citing Legacy Systems 176 117 88
As % of all permanent jobs in London 0.77% 0.95% 0.43%
As % of the Miscellaneous category 2.25% 2.11% 1.04%
Number of salaries quoted 122 71 73
10th Percentile £50,250 £55,500 £42,707
25th Percentile £65,438 £61,250 £63,218
Median annual salary (50th Percentile) £80,500 £77,500 £80,000
Median % change year-on-year +3.87% -3.13% -5.88%
75th Percentile £96,563 £95,000 £132,500
90th Percentile £120,000 £105,000 £162,000
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 7,832 5,558 8,495
As % of all permanent jobs advertised in London 34.30% 45.08% 41.32%
Number of salaries quoted 4,758 3,276 5,660
10th Percentile £41,250 £40,542 £40,000
25th Percentile £55,000 £55,000 £52,500
Median annual salary (50th Percentile) £80,000 £78,500 £77,500
Median % change year-on-year +1.91% +1.29% +3.33%
75th Percentile £100,000 £107,500 £103,750
90th Percentile £120,000 £136,250 £136,250
England median annual salary £59,527 £57,194 £56,252
% change year-on-year +4.08% +1.67% -13.46%

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 27 July 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 27 July 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 +9 23 £85,000 +13.33% 14
West London -9 16 £80,000 - 5
South London +9 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 15 (8.52%) Confluence
2 11 (6.25%) Anypoint
2 11 (6.25%) Mule
3 2 (1.14%) CMS
3 2 (1.14%) Microsoft Exchange
4 1 (0.57%) Apache
4 1 (0.57%) Apache Airflow
4 1 (0.57%) Appian
4 1 (0.57%) CICS
4 1 (0.57%) Jupyter
4 1 (0.57%) NServiceBus
Applications
1 11 (6.25%) MS Visio
Business Applications
1 4 (2.27%) SAP S/4HANA
1 4 (2.27%) Workday HCM
2 2 (1.14%) Dynamics CRM
2 2 (1.14%) SAP MDG
3 1 (0.57%) Misys Equation
3 1 (0.57%) Misys Midas
3 1 (0.57%) Sage 50
3 1 (0.57%) SAP HCM
3 1 (0.57%) Visualfiles
Cloud Services
1 55 (31.25%) Azure
2 46 (26.14%) AWS
3 17 (9.66%) Cloud Computing
4 14 (7.95%) AWS CloudFormation
5 11 (6.25%) Lucidchart
5 11 (6.25%) PaaS
6 9 (5.11%) Serverless
7 8 (4.55%) Power Platform
8 7 (3.98%) Azure DevOps
8 7 (3.98%) Entra ID
8 7 (3.98%) IaaS
8 7 (3.98%) SaaS
9 6 (3.41%) Microsoft 365
10 5 (2.84%) Azure ExpressRoute
10 5 (2.84%) Azure Service Bus
10 5 (2.84%) Azure Synapse Analytics
10 5 (2.84%) GCP
11 4 (2.27%) Azure Event Grid
11 4 (2.27%) Azure Logic Apps
12 3 (1.70%) Azure AKS
Communications & Networking
1 11 (6.25%) SSL
1 11 (6.25%) WAN
2 7 (3.98%) DNS
2 7 (3.98%) Firewall
2 7 (3.98%) Network Security
3 5 (2.84%) LAN
3 5 (2.84%) TCP/IP
3 5 (2.84%) VPN
3 5 (2.84%) Wi-Fi
4 2 (1.14%) DHCP
4 2 (1.14%) SAN
4 2 (1.14%) SD-WAN
4 2 (1.14%) Wireless
5 1 (0.57%) Broadband
5 1 (0.57%) DMARC
Database & Business Intelligence
1 16 (9.09%) PostgreSQL
2 15 (8.52%) Db2
3 10 (5.68%) DTS
4 8 (4.55%) Power BI
5 4 (2.27%) Data Lake
6 3 (1.70%) Data Warehouse
6 3 (1.70%) SQL Server
7 2 (1.14%) Relational Database
7 2 (1.14%) SAP Data Services
8 1 (0.57%) Amazon Athena
8 1 (0.57%) BigQuery
8 1 (0.57%) Data Vault
8 1 (0.57%) Elasticsearch
8 1 (0.57%) Looker
8 1 (0.57%) MySQL
8 1 (0.57%) SAP BW
8 1 (0.57%) Semantic Layer
8 1 (0.57%) Snowflake Schema
8 1 (0.57%) Star Schema
8 1 (0.57%) Tableau
Development Applications
1 10 (5.68%) JIRA
2 4 (2.27%) Selenium
3 3 (1.70%) Jasmine
3 3 (1.70%) Jenkins
3 3 (1.70%) Mocha
3 3 (1.70%) NUnit
4 2 (1.14%) JMeter
4 2 (1.14%) JUnit
4 2 (1.14%) Mockito
5 1 (0.57%) Bitbucket
5 1 (0.57%) Cucumber
5 1 (0.57%) Git
5 1 (0.57%) GitLab
5 1 (0.57%) MLflow
General
1 69 (39.20%) Finance
2 31 (17.61%) Social Skills
3 27 (15.34%) Analytical Skills
4 21 (11.93%) Law
5 20 (11.36%) Public Sector
6 17 (9.66%) Inclusion and Diversity
7 13 (7.39%) Banking
7 13 (7.39%) Influencing Skills
8 8 (4.55%) Retail
9 7 (3.98%) Cyber-Physical System
9 7 (3.98%) Investment Banking
10 4 (2.27%) Back Office
10 4 (2.27%) Financial Institution
10 4 (2.27%) General Ledger
10 4 (2.27%) Manufacturing
11 3 (1.70%) Legal
12 2 (1.14%) Advertising
13 1 (0.57%) Front Office
13 1 (0.57%) Marketing
Job Titles
1 44 (25.00%) Architect
2 41 (23.30%) Senior
3 31 (17.61%) Consultant
4 25 (14.20%) Developer
5 22 (12.50%) Solutions Architect
6 18 (10.23%) Lead
6 18 (10.23%) Migration Consultant
7 15 (8.52%) Senior Architect
8 14 (7.95%) Software Engineer
9 13 (7.39%) Professional Services Consultant
10 12 (6.82%) Lead Developer
11 11 (6.25%) MuleSoft Developer
11 11 (6.25%) Senior Consultant
12 9 (5.11%) Senior Solutions Architect
13 8 (4.55%) Analyst
13 8 (4.55%) Workday Consultant
14 7 (3.98%) Cybersecurity Engineer
14 7 (3.98%) DevOps Engineer
14 7 (3.98%) Research Engineer
14 7 (3.98%) Senior Professional Services Consultant
Libraries, Frameworks & Software Standards
1 20 (11.36%) Spring Boot
2 17 (9.66%) Kafka
2 17 (9.66%) Spring
3 15 (8.52%) Node.js
4 13 (7.39%) Middleware
4 13 (7.39%) OAuth
5 12 (6.82%) JWT
5 12 (6.82%) OAuth2
5 12 (6.82%) React
6 11 (6.25%) .NET
6 11 (6.25%) MUnit
6 11 (6.25%) RAML
7 10 (5.68%) RESTful
8 6 (3.41%) CSS
8 6 (3.41%) REST
9 4 (2.27%) HTML
10 3 (1.70%) Hibernate
10 3 (1.70%) JPA
10 3 (1.70%) JSON
10 3 (1.70%) React Native
Miscellaneous
1 34 (19.32%) Cloud Native
2 18 (10.23%) Data Centre
2 18 (10.23%) iSeries
2 18 (10.23%) Onboarding
3 17 (9.66%) Enterprise Cloud
4 14 (7.95%) Distributed Computing
4 14 (7.95%) Mainframe
5 10 (5.68%) EPoS
5 10 (5.68%) Greenfield Project
6 9 (5.11%) AS400
6 9 (5.11%) Fixed Income
7 8 (4.55%) AI Agents
7 8 (4.55%) Foreign Exchange (FX)
7 8 (4.55%) Reinsurance
8 7 (3.98%) Derivative
8 7 (3.98%) Operational Technology
9 6 (3.41%) Distributed Systems
10 5 (2.84%) Data Structures
10 5 (2.84%) Security Posture
11 4 (2.27%) Enterprise Software
Operating Systems
1 6 (3.41%) Windows
2 5 (2.84%) Linux
3 3 (1.70%) Android
3 3 (1.70%) Apple iOS
Processes & Methodologies
1 64 (36.36%) Migration
2 42 (23.86%) CI/CD
2 42 (23.86%) Mentoring
3 39 (22.16%) AI
3 39 (22.16%) Microservices
4 38 (21.59%) Agile
4 38 (21.59%) DevOps
4 38 (21.59%) Event-Driven
5 31 (17.61%) Software Engineering
6 30 (17.05%) Continuous Improvement
6 30 (17.05%) Roadmaps
7 27 (15.34%) Project Delivery
8 26 (14.77%) Event-Driven Architecture
8 26 (14.77%) Machine Learning
9 25 (14.20%) Problem-Solving
10 24 (13.64%) Stakeholder Management
11 21 (11.93%) Test Automation
12 17 (9.66%) Application Discovery
12 17 (9.66%) Containerisation
12 17 (9.66%) Database Migration
Programming Languages
1 28 (15.91%) Python
2 24 (13.64%) Java
3 17 (9.66%) SQL
4 14 (7.95%) JavaScript
5 13 (7.39%) RPG
6 12 (6.82%) C#
7 11 (6.25%) DataWeave
7 11 (6.25%) TypeScript
8 3 (1.70%) Kotlin
8 3 (1.70%) Swift
9 2 (1.14%) C++
9 2 (1.14%) COBOL
9 2 (1.14%) Shell Script
10 1 (0.57%) Go
10 1 (0.57%) JCL
10 1 (0.57%) Julia
10 1 (0.57%) MATLAB
10 1 (0.57%) Perl
10 1 (0.57%) RPG IV
10 1 (0.57%) X++
Qualifications
1 40 (22.73%) Security Cleared
2 25 (14.20%) SC Cleared
3 11 (6.25%) Degree
4 10 (5.68%) AWS Certification
5 7 (3.98%) Master's Degree
6 4 (2.27%) DBS Check
7 1 (0.57%) ACCA
7 1 (0.57%) Azure Certification
7 1 (0.57%) CIMA
7 1 (0.57%) DV Cleared
7 1 (0.57%) ITIL Certification
7 1 (0.57%) OCP
7 1 (0.57%) Oracle Certification
7 1 (0.57%) PMI Certification
7 1 (0.57%) PMP
Quality Assurance & Compliance
1 13 (7.39%) Data Quality
2 5 (2.84%) QA
2 5 (2.84%) SLA
3 3 (1.70%) Accessibility
4 2 (1.14%) PMO
5 1 (0.57%) GDPR
System Software
1 12 (6.82%) Docker
2 7 (3.98%) Active Directory
2 7 (3.98%) VMware Infrastructure
3 5 (2.84%) Hyper-V
4 4 (2.27%) Virtual Machines
5 2 (1.14%) vSphere
Systems Management
1 13 (7.39%) Progress Chef
1 13 (7.39%) Puppet
2 12 (6.82%) Kubernetes
3 11 (6.25%) CloudHub
4 10 (5.68%) Terraform
5 2 (1.14%) Kibana
5 2 (1.14%) Single Sign-On
5 2 (1.14%) WhatsUp Gold
Vendors
1 23 (13.07%) Microsoft
2 22 (12.50%) SAP
3 18 (10.23%) IBM
4 14 (7.95%) ServiceNow
5 12 (6.82%) Salesforce
6 11 (6.25%) MuleSoft
7 8 (4.55%) VMware
7 8 (4.55%) Workday
8 7 (3.98%) Guidewire
9 5 (2.84%) Oracle
9 5 (2.84%) Sage
10 4 (2.27%) Concur
10 4 (2.27%) HP
11 3 (1.70%) Google
12 2 (1.14%) Cisco
12 2 (1.14%) Citrix
12 2 (1.14%) Dynatrace
12 2 (1.14%) EMC
12 2 (1.14%) Sophos
12 2 (1.14%) Veeam