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 16 November 2025, comparing them to the same period in the previous two years.

6 months to
16 Nov 2025
Same period 2024 Same period 2023
Rank 202 332 364
Rank change year-on-year +130 +32 +25
Permanent jobs citing Legacy Systems 196 107 101
As % of all permanent jobs in London 1.53% 0.62% 0.52%
As % of the Miscellaneous category 3.31% 1.49% 1.27%
Number of salaries quoted 95 72 94
10th Percentile £52,500 £40,000 £52,500
25th Percentile £56,250 £43,619 £60,625
Median annual salary (50th Percentile) £75,000 £66,250 £79,500
Median % change year-on-year +13.21% -16.67% -3.64%
75th Percentile £88,750 £120,938 £90,000
90th Percentile £102,200 £142,500 £105,875
England median annual salary £67,250 £52,500 £65,000
% change year-on-year +28.10% -19.23% -10.20%

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 5,924 7,187 7,940
As % of all permanent jobs advertised in London 46.22% 41.34% 41.20%
Number of salaries quoted 3,398 4,012 6,202
10th Percentile £35,750 £45,000 £41,250
25th Percentile £51,250 £56,250 £56,250
Median annual salary (50th Percentile) £75,000 £80,000 £77,500
Median % change year-on-year -6.25% +3.23% +3.33%
75th Percentile £105,000 £108,750 £100,000
90th Percentile £132,500 £132,500 £128,750
England median annual salary £55,000 £60,000 £62,500
% change year-on-year -8.33% -4.00% -0.79%

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 16 November 2025.

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 16 November 2025. 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 +56 21 £66,250 -17.19% 85
West London +3 4 - - 5
South London +19 2 £55,200 -55.84% 2
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 9 (4.59%) Apache
1 9 (4.59%) Apache Airflow
2 7 (3.57%) Apache Spark
2 7 (3.57%) SharePoint
3 4 (2.04%) Apache Synapse
4 3 (1.53%) Microsoft Exchange
5 2 (1.02%) Confluence
6 1 (0.51%) Appian
6 1 (0.51%) nginx
6 1 (0.51%) SAS
Applications
1 10 (5.10%) Microsoft Office
2 3 (1.53%) Microsoft Excel
3 2 (1.02%) Microsoft PowerPoint
Business Applications
1 3 (1.53%) Shopify
2 2 (1.02%) SAP S/4HANA
3 1 (0.51%) Aladdin
3 1 (0.51%) Dynamics CRM
3 1 (0.51%) NetSuite
3 1 (0.51%) SAP MDG
Cloud Services
1 55 (28.06%) Azure
2 49 (25.00%) AWS
3 25 (12.76%) Amazon Bedrock
3 25 (12.76%) Vertex AI
4 16 (8.16%) SaaS
5 15 (7.65%) Azure DevOps
5 15 (7.65%) Power Platform
6 8 (4.08%) Dynamics 365
6 8 (4.08%) GCP
7 7 (3.57%) GitHub
7 7 (3.57%) Microsoft 365
8 6 (3.06%) ChatGPT
8 6 (3.06%) GitHub Copilot
8 6 (3.06%) IaaS
8 6 (3.06%) PaaS
9 5 (2.55%) Azure Data Factory
9 5 (2.55%) Microsoft Purview
9 5 (2.55%) Power Automate
9 5 (2.55%) Serverless
9 5 (2.55%) Snowflake
Communications & Networking
1 5 (2.55%) Firewall
2 4 (2.04%) WAN
3 3 (1.53%) Intranet
3 3 (1.53%) LAN
3 3 (1.53%) SD-WAN
3 3 (1.53%) Wi-Fi
4 2 (1.02%) Extranet
4 2 (1.02%) SAN
4 2 (1.02%) TCP/IP
5 1 (0.51%) DHCP
5 1 (0.51%) DNS
5 1 (0.51%) Fibre Channel
5 1 (0.51%) iSCSI
5 1 (0.51%) NAS
5 1 (0.51%) Network Security
5 1 (0.51%) PSTN
5 1 (0.51%) Unified Communications
5 1 (0.51%) VoIP
5 1 (0.51%) VPN
Database & Business Intelligence
1 65 (33.16%) SQL Server
2 44 (22.45%) MySQL
3 10 (5.10%) SQL Server Integration Services
4 7 (3.57%) Power BI
4 7 (3.57%) Relational Database
5 6 (3.06%) NoSQL
6 4 (2.04%) Amazon Redshift
6 4 (2.04%) Big Data
6 4 (2.04%) BigQuery
6 4 (2.04%) Data Mining
7 3 (1.53%) Delta Lake
7 3 (1.53%) Metadata
7 3 (1.53%) PostgreSQL
8 2 (1.02%) Data Vault
8 2 (1.02%) Hadoop
8 2 (1.02%) Oracle Database
8 2 (1.02%) Snowflake Schema
9 1 (0.51%) Data Lake
9 1 (0.51%) SAS EBI
9 1 (0.51%) SQL Server Reporting Services
Development Applications
1 11 (5.61%) ERwin
2 8 (4.08%) Jenkins
2 8 (4.08%) Octopus Deploy
3 6 (3.06%) Git
3 6 (3.06%) TeamCity
4 4 (2.04%) JIRA
5 3 (1.53%) GitLab
6 2 (1.02%) Artifactory
6 2 (1.02%) JUnit
6 2 (1.02%) Synon
7 1 (0.51%) Cucumber
7 1 (0.51%) JMeter
7 1 (0.51%) MLflow
7 1 (0.51%) Mockito
7 1 (0.51%) Selenium
7 1 (0.51%) Vite
General
1 86 (43.88%) Social Skills
2 50 (25.51%) Analytical Skills
3 36 (18.37%) Finance
4 12 (6.12%) Banking
5 9 (4.59%) Investment Banking
6 8 (4.08%) Law
6 8 (4.08%) Public Sector
7 7 (3.57%) Legal
8 6 (3.06%) Inclusion and Diversity
9 5 (2.55%) Documentation Skills
10 3 (1.53%) Local Government
10 3 (1.53%) Retail
11 2 (1.02%) Back Office
11 2 (1.02%) Marketing
11 2 (1.02%) Music Industry
12 1 (0.51%) Front Office
12 1 (0.51%) Health Technology
12 1 (0.51%) International Banking
12 1 (0.51%) Mandarin Language
Job Titles
1 70 (35.71%) Consultant
2 43 (21.94%) Senior
3 33 (16.84%) Architect
4 32 (16.33%) Developer
5 25 (12.76%) Gen AI Consultant
5 25 (12.76%) Senior Consultant
6 24 (12.24%) Lead
7 13 (6.63%) Data Architect
8 11 (5.61%) Lead Architect
8 11 (5.61%) Lead Data Architect
8 11 (5.61%) Senior Developer
9 10 (5.10%) Solutions Architect
10 8 (4.08%) CRM Manager
10 8 (4.08%) Lead Developer
10 8 (4.08%) Platform Manager
11 7 (3.57%) Analyst
11 7 (3.57%) Data Engineer
11 7 (3.57%) Enterprise Architect
12 6 (3.06%) Artificial Intelligence Developer
12 6 (3.06%) DevOps Engineer
Libraries, Frameworks & Software Standards
1 25 (12.76%) LangChain
2 14 (7.14%) REST
3 10 (5.10%) .NET
3 10 (5.10%) Kafka
4 8 (4.08%) Laravel
4 8 (4.08%) Pandas
5 7 (3.57%) React
5 7 (3.57%) Spring
5 7 (3.57%) Spring Boot
6 6 (3.06%) Hibernate
6 6 (3.06%) RESTful
7 5 (2.55%) Django
7 5 (2.55%) JPA
7 5 (2.55%) Tailwind CSS
7 5 (2.55%) Web Services
8 4 (2.04%) Alpine.js
8 4 (2.04%) Apache Beam
8 4 (2.04%) Symfony
8 4 (2.04%) Vue
9 3 (1.53%) NumPy
Miscellaneous
1 19 (9.69%) Data Structures
2 16 (8.16%) Cloud Native
3 9 (4.59%) Management Information System
4 7 (3.57%) Virtual Team
5 6 (3.06%) Hybrid Cloud
6 5 (2.55%) Analytical Mindset
6 5 (2.55%) Distributed Architecture
7 4 (2.04%) e-Learning
7 4 (2.04%) Enterprise Software
7 4 (2.04%) Low-Code
7 4 (2.04%) Product Ownership
8 3 (1.53%) Onboarding
9 2 (1.02%) CMDB
9 2 (1.02%) Shadow IT
10 1 (0.51%) Algorithms
10 1 (0.51%) Credit Risk
10 1 (0.51%) Data Centre
10 1 (0.51%) Greenfield Project
10 1 (0.51%) Market Risk
10 1 (0.51%) Reinsurance
Operating Systems
1 4 (2.04%) Windows
2 3 (1.53%) Windows Server
3 1 (0.51%) Linux
3 1 (0.51%) VMS
3 1 (0.51%) Windows Server 2012
Processes & Methodologies
1 52 (26.53%) Agile
2 46 (23.47%) Migration
3 45 (22.96%) OO
4 44 (22.45%) AI
4 44 (22.45%) OOP
4 44 (22.45%) Stakeholder Management
5 38 (19.39%) CI/CD
5 38 (19.39%) Thought Leadership
6 35 (17.86%) DevOps
7 32 (16.33%) Computer Science
7 32 (16.33%) IT Strategy
7 32 (16.33%) Machine Learning
8 28 (14.29%) LLM
8 28 (14.29%) Roadmaps
9 27 (13.78%) Prompt Engineering
10 26 (13.27%) Business Development
10 26 (13.27%) Generative AI
10 26 (13.27%) MLOps
10 26 (13.27%) Retrieval-Augmented Generation
11 25 (12.76%) Data Modelling
Programming Languages
1 45 (22.96%) Delphi
2 44 (22.45%) Pascal
3 30 (15.31%) SQL
4 23 (11.73%) Python
5 13 (6.63%) Java
5 13 (6.63%) PHP
6 11 (5.61%) PowerShell
7 8 (4.08%) JavaScript
8 5 (2.55%) C#
9 2 (1.02%) Data Analysis Expressions
9 2 (1.02%) PL/SQL
9 2 (1.02%) RPG
9 2 (1.02%) Shell Script
9 2 (1.02%) TypeScript
10 1 (0.51%) Bicep
10 1 (0.51%) Elixir
10 1 (0.51%) Erlang
10 1 (0.51%) R
10 1 (0.51%) Rust
10 1 (0.51%) Scala
Qualifications
1 38 (19.39%) Degree
2 30 (15.31%) Computer Science Degree
3 8 (4.08%) Azure Certification
4 3 (1.53%) Security Cleared
5 2 (1.02%) Cisco Certification
5 2 (1.02%) SC Cleared
5 2 (1.02%) TOGAF Certification
6 1 (0.51%) (ISC)2 CCSP
6 1 (0.51%) ACCA
6 1 (0.51%) CCNP
6 1 (0.51%) CCSP
6 1 (0.51%) CISA
6 1 (0.51%) DBS Check
6 1 (0.51%) MCITP
6 1 (0.51%) MCSA
6 1 (0.51%) Microsoft Certification
6 1 (0.51%) SAP Certification
Quality Assurance & Compliance
1 47 (23.98%) QA
2 12 (6.12%) GDPR
3 3 (1.53%) Accessibility
3 3 (1.53%) Data Quality
4 2 (1.02%) ISO/IEC 27001
5 1 (0.51%) Cyber Essentials
5 1 (0.51%) Cyber Essentials PLUS
5 1 (0.51%) NIST
System Software
1 12 (6.12%) Docker
2 3 (1.53%) Active Directory
2 3 (1.53%) VMware ESXi
2 3 (1.53%) VMware Infrastructure
3 1 (0.51%) Hyper-V
3 1 (0.51%) Virtual Desktop
3 1 (0.51%) VMware Server
3 1 (0.51%) vSphere
Systems Management
1 15 (7.65%) Terraform
2 14 (7.14%) Kubernetes
3 3 (1.53%) Microsoft Intune
4 2 (1.02%) Grafana
4 2 (1.02%) Prometheus
5 1 (0.51%) Ansible
5 1 (0.51%) Backup Exec
5 1 (0.51%) Cisco CUCM
5 1 (0.51%) FortiGate
5 1 (0.51%) Kibana
5 1 (0.51%) SCOM
5 1 (0.51%) vCenter Server
5 1 (0.51%) ZABBIX
Vendors
1 52 (26.53%) Oracle
2 47 (23.98%) Microsoft
3 27 (13.78%) Google
4 12 (6.12%) Salesforce
5 8 (4.08%) Databricks
6 5 (2.55%) Cisco
6 5 (2.55%) VMware
7 4 (2.04%) Citrix
8 2 (1.02%) BiZZdesign
8 2 (1.02%) IBM
8 2 (1.02%) Meraki
8 2 (1.02%) MuleSoft
8 2 (1.02%) OpenAI
8 2 (1.02%) SAP
8 2 (1.02%) ServiceNow
8 2 (1.02%) SolarWinds
8 2 (1.02%) Sparx
8 2 (1.02%) Workday
9 1 (0.51%) Dynatrace
9 1 (0.51%) Palo Alto