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 20 June 2026, comparing them to the same period in the previous two years.

6 months to
20 Jun 2026
Same period 2025 Same period 2024
Rank 278 291 427
Rank change year-on-year +13 +136 -67
Permanent jobs citing Legacy Systems 147 108 90
As % of all permanent jobs in London 0.68% 0.89% 0.36%
As % of the Miscellaneous category 2.02% 1.95% 0.90%
Number of salaries quoted 102 59 72
10th Percentile £55,000 £55,500 £46,875
25th Percentile £66,750 £61,250 £63,218
Median annual salary (50th Percentile) £80,000 £77,500 £80,000
Median % change year-on-year +3.23% -3.13% -5.88%
75th Percentile £98,438 £96,250 £110,000
90th Percentile £120,000 £105,500 £145,000
England median annual salary £65,000 £65,000 £57,500
% change year-on-year - +13.04% -11.54%

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 7,266 5,530 9,948
As % of all permanent jobs advertised in London 33.69% 45.43% 40.23%
Number of salaries quoted 4,479 3,074 6,945
10th Percentile £41,250 £41,250 £37,500
25th Percentile £56,250 £56,250 £51,250
Median annual salary (50th Percentile) £80,000 £80,000 £75,000
Median % change year-on-year - +6.67% -0.70%
75th Percentile £100,000 £110,000 £100,000
90th Percentile £120,000 £136,250 £131,250
England median annual salary £60,000 £57,500 £55,000
% change year-on-year +4.35% +4.55% -15.38%

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 20 June 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 20 June 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 -17 24 £83,750 +11.67% 9
West London -10 8 £80,000 +28.00% 12
South London - 3 - -
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 (8.84%) Confluence
2 6 (4.08%) Appian
3 4 (2.72%) Anypoint
3 4 (2.72%) Mule
4 2 (1.36%) Microsoft Exchange
5 1 (0.68%) CICS
5 1 (0.68%) CMS
5 1 (0.68%) Jupyter
5 1 (0.68%) NServiceBus
5 1 (0.68%) SharePoint
Applications
1 8 (5.44%) MS Visio
2 1 (0.68%) Spreadsheet
Business Applications
1 4 (2.72%) SAP S/4HANA
2 2 (1.36%) Dynamics CRM
2 2 (1.36%) SAP MDG
3 1 (0.68%) Aladdin
3 1 (0.68%) Misys Equation
3 1 (0.68%) Misys Midas
3 1 (0.68%) Sage 50
3 1 (0.68%) Visualfiles
Cloud Services
1 45 (30.61%) Azure
2 19 (12.93%) AWS
3 9 (6.12%) Power Platform
4 8 (5.44%) Azure DevOps
4 8 (5.44%) Lucidchart
5 7 (4.76%) Entra ID
5 7 (4.76%) PaaS
6 6 (4.08%) Anthropic Claude
6 6 (4.08%) Azure AI
6 6 (4.08%) Azure Data Factory
6 6 (4.08%) Microsoft 365
6 6 (4.08%) Power Automate
7 5 (3.40%) Azure Service Bus
7 5 (3.40%) Azure Synapse Analytics
7 5 (3.40%) Serverless
8 4 (2.72%) Azure Event Grid
8 4 (2.72%) Azure Logic Apps
8 4 (2.72%) GCP
8 4 (2.72%) SaaS
9 3 (2.04%) Datadog
Communications & Networking
1 7 (4.76%) Network Security
1 7 (4.76%) WAN
2 4 (2.72%) SSL
3 3 (2.04%) DNS
3 3 (2.04%) Firewall
4 2 (1.36%) DHCP
4 2 (1.36%) SAN
4 2 (1.36%) SD-WAN
4 2 (1.36%) Wireless
5 1 (0.68%) Broadband
5 1 (0.68%) DMARC
5 1 (0.68%) LAN
5 1 (0.68%) TCP/IP
5 1 (0.68%) VPN
5 1 (0.68%) Wi-Fi
Database & Business Intelligence
1 14 (9.52%) SQL Server
2 11 (7.48%) PostgreSQL
3 10 (6.80%) Db2
4 8 (5.44%) Power BI
5 6 (4.08%) DTS
5 6 (4.08%) Pinecone
6 5 (3.40%) Data Warehouse
6 5 (3.40%) SQL Server Integration Services
7 4 (2.72%) Data Lake
8 2 (1.36%) BigQuery
8 2 (1.36%) Relational Database
8 2 (1.36%) SAP Data Services
8 2 (1.36%) Tableau
9 1 (0.68%) Looker
9 1 (0.68%) SAP BW
9 1 (0.68%) Semantic Layer
9 1 (0.68%) Snowflake Schema
9 1 (0.68%) SQL Server Analysis Services
9 1 (0.68%) SQL Server Reporting Services
9 1 (0.68%) Star Schema
Development Applications
1 8 (5.44%) JIRA
2 6 (4.08%) MLflow
3 4 (2.72%) Jenkins
3 4 (2.72%) JUnit
3 4 (2.72%) Octopus Deploy
3 4 (2.72%) TeamCity
4 3 (2.04%) Git
4 3 (2.04%) JMeter
4 3 (2.04%) Storybook
5 2 (1.36%) Maven
5 2 (1.36%) Mockito
6 1 (0.68%) Bitbucket
6 1 (0.68%) Cucumber
6 1 (0.68%) GitLab
6 1 (0.68%) LoadRunner
6 1 (0.68%) Plastic SCM
6 1 (0.68%) Selenium
General
1 72 (48.98%) Finance
2 41 (27.89%) Social Skills
3 27 (18.37%) Analytical Skills
4 19 (12.93%) Inclusion and Diversity
5 15 (10.20%) Banking
6 12 (8.16%) Influencing Skills
6 12 (8.16%) Law
7 8 (5.44%) Public Sector
7 8 (5.44%) Retail
8 7 (4.76%) Cyber-Physical System
8 7 (4.76%) Investment Banking
9 4 (2.72%) Back Office
9 4 (2.72%) Financial Institution
9 4 (2.72%) Manufacturing
10 3 (2.04%) Legal
11 2 (1.36%) Advertising
11 2 (1.36%) Front Office
12 1 (0.68%) Marketing
Job Titles
1 38 (25.85%) Architect
2 27 (18.37%) Senior
3 18 (12.24%) Developer
4 16 (10.88%) Solutions Architect
5 14 (9.52%) Senior Architect
6 12 (8.16%) Analyst
6 12 (8.16%) Lead
7 11 (7.48%) Software Engineer
8 9 (6.12%) Consultant
9 8 (5.44%) DevOps Engineer
9 8 (5.44%) Senior Solutions Architect
10 7 (4.76%) Business Analyst
10 7 (4.76%) Cybersecurity Engineer
10 7 (4.76%) Java Developer
10 7 (4.76%) Research Engineer
10 7 (4.76%) Security Engineer
10 7 (4.76%) Transformation Manager
11 6 (4.08%) Artificial Intelligence Engineer
11 6 (4.08%) Enterprise Architect
11 6 (4.08%) Lead Developer
Libraries, Frameworks & Software Standards
1 15 (10.20%) .NET
2 13 (8.84%) Spring
3 12 (8.16%) Spring Boot
4 11 (7.48%) Node.js
4 11 (7.48%) OAuth
4 11 (7.48%) React
5 10 (6.80%) JWT
5 10 (6.80%) Kafka
5 10 (6.80%) Middleware
5 10 (6.80%) REST
5 10 (6.80%) RESTful
6 9 (6.12%) Web Services
7 7 (4.76%) FastAPI
7 7 (4.76%) Flask
7 7 (4.76%) PyTorch
8 6 (4.08%) Faiss
8 6 (4.08%) Hugging Face
8 6 (4.08%) NumPy
8 6 (4.08%) OpenAPI
8 6 (4.08%) scikit-learn
Miscellaneous
1 28 (19.05%) Cloud Native
2 9 (6.12%) Fixed Income
2 9 (6.12%) iSeries
3 8 (5.44%) AI Agents
3 8 (5.44%) Foreign Exchange (FX)
3 8 (5.44%) Reinsurance
4 7 (4.76%) Derivative
4 7 (4.76%) Operational Technology
5 6 (4.08%) Distributed Systems
5 6 (4.08%) EPoS
5 6 (4.08%) Low-Code
5 6 (4.08%) Virtual Team
6 5 (3.40%) Product Ownership
7 4 (2.72%) AS400
7 4 (2.72%) Hybrid Cloud
7 4 (2.72%) Onboarding
8 3 (2.04%) Data Centre
8 3 (2.04%) Data Structures
8 3 (2.04%) Mainframe
8 3 (2.04%) Replication
Operating Systems
1 3 (2.04%) Android
1 3 (2.04%) Apple iOS
2 2 (1.36%) Windows
3 1 (0.68%) Linux
Processes & Methodologies
1 47 (31.97%) Migration
2 41 (27.89%) AI
3 36 (24.49%) CI/CD
4 34 (23.13%) Agile
4 34 (23.13%) DevOps
5 32 (21.77%) Roadmaps
6 30 (20.41%) Microservices
7 26 (17.69%) Machine Learning
7 26 (17.69%) Problem-Solving
8 25 (17.01%) Software Engineering
8 25 (17.01%) Stakeholder Management
9 24 (16.33%) Event-Driven
10 19 (12.93%) Mentoring
11 18 (12.24%) Data Modelling
11 18 (12.24%) User Acceptance Testing
11 18 (12.24%) Validation
12 17 (11.56%) Containerisation
12 17 (11.56%) Continuous Improvement
12 17 (11.56%) Data Migration
12 17 (11.56%) Test Automation
Programming Languages
1 31 (21.09%) Python
2 30 (20.41%) SQL
3 19 (12.93%) Java
4 13 (8.84%) JavaScript
5 12 (8.16%) C#
6 9 (6.12%) TypeScript
7 8 (5.44%) RPG
8 5 (3.40%) PowerShell
9 4 (2.72%) DataWeave
10 3 (2.04%) Kotlin
10 3 (2.04%) Swift
11 2 (1.36%) C++
11 2 (1.36%) Go
11 2 (1.36%) Shell Script
11 2 (1.36%) X++
12 1 (0.68%) COBOL
12 1 (0.68%) JCL
12 1 (0.68%) Perl
12 1 (0.68%) PHP
12 1 (0.68%) Ruby
Qualifications
1 24 (16.33%) Security Cleared
2 20 (13.61%) SC Cleared
3 10 (6.80%) Degree
4 8 (5.44%) Master's Degree
5 4 (2.72%) DBS Check
6 1 (0.68%) ACCA
6 1 (0.68%) AWS Certification
6 1 (0.68%) Azure Certification
6 1 (0.68%) CIMA
6 1 (0.68%) Computer Science Degree
6 1 (0.68%) DV Cleared
6 1 (0.68%) Microsoft Certification
6 1 (0.68%) PhD
Quality Assurance & Compliance
1 20 (13.61%) Data Quality
2 5 (3.40%) Accessibility
2 5 (3.40%) QA
3 1 (0.68%) Actionable Recommendations
3 1 (0.68%) GDPR
3 1 (0.68%) SLA
System Software
1 16 (10.88%) Docker
2 3 (2.04%) Active Directory
2 3 (2.04%) VMware Infrastructure
3 2 (1.36%) vSphere
4 1 (0.68%) Hyper-V
Systems Management
1 15 (10.20%) Kubernetes
2 12 (8.16%) Terraform
3 4 (2.72%) CloudHub
4 3 (2.04%) Kibana
5 2 (1.36%) Progress Chef
5 2 (1.36%) Puppet
5 2 (1.36%) Single Sign-On
5 2 (1.36%) WhatsUp Gold
6 1 (0.68%) Ansible
6 1 (0.68%) Grafana
Vendors
1 18 (12.24%) Microsoft
2 10 (6.80%) Guidewire
2 10 (6.80%) SAP
3 9 (6.12%) IBM
4 7 (4.76%) ServiceNow
5 6 (4.08%) Automation Anywhere
5 6 (4.08%) OpenAI
5 6 (4.08%) Salesforce
5 6 (4.08%) UiPath
6 5 (3.40%) MuleSoft
6 5 (3.40%) Sage
7 4 (2.72%) Concur
7 4 (2.72%) VMware
8 3 (2.04%) Dynatrace
8 3 (2.04%) Google
8 3 (2.04%) Pega
8 3 (2.04%) Sitecore
8 3 (2.04%) Splunk
9 2 (1.36%) Meraki
9 2 (1.36%) Veeam