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

6 months to
23 Nov 2025
Same period 2024 Same period 2023
Rank 204 340 355
Rank change year-on-year +136 +15 +44
Permanent jobs citing Legacy Systems 198 110 98
As % of all permanent jobs in London 1.53% 0.62% 0.52%
As % of the Miscellaneous category 3.38% 1.49% 1.27%
Number of salaries quoted 96 73 92
10th Percentile £52,500 £39,000 £52,500
25th Percentile £56,125 £43,227 £60,000
Median annual salary (50th Percentile) £77,500 £62,500 £77,500
Median % change year-on-year +24.00% -19.35% -6.06%
75th Percentile £93,750 £120,000 £90,000
90th Percentile £108,750 £142,500 £100,000
England median annual salary £66,150 £52,500 £65,000
% change year-on-year +26.00% -19.23% -10.34%

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 5,864 7,383 7,688
As % of all permanent jobs advertised in London 45.42% 41.66% 40.78%
Number of salaries quoted 3,409 4,134 6,003
10th Percentile £35,750 £43,978 £40,500
25th Percentile £51,004 £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 £103,750 £107,500 £100,000
90th Percentile £130,000 £130,000 £130,000
England median annual salary £55,000 £60,000 £62,500
% change year-on-year -8.33% -4.00% -1.96%

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 23 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 23 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 +64 23 £66,250 -17.19% 15
West London +7 4 - - 2
South London +25 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 (4.55%) Apache
1 9 (4.55%) Apache Airflow
2 7 (3.54%) Apache Spark
2 7 (3.54%) SharePoint
3 4 (2.02%) Apache Synapse
4 3 (1.52%) Microsoft Exchange
5 2 (1.01%) Appian
5 2 (1.01%) Confluence
6 1 (0.51%) nginx
6 1 (0.51%) SAS
Applications
1 9 (4.55%) Microsoft Office
2 3 (1.52%) Microsoft Excel
3 2 (1.01%) Microsoft PowerPoint
Business Applications
1 2 (1.01%) SAP S/4HANA
2 1 (0.51%) Aladdin
2 1 (0.51%) Dynamics CRM
2 1 (0.51%) NetSuite
2 1 (0.51%) SAP MDG
2 1 (0.51%) Shopify
Cloud Services
1 53 (26.77%) Azure
2 48 (24.24%) AWS
3 25 (12.63%) Amazon Bedrock
3 25 (12.63%) Vertex AI
4 16 (8.08%) SaaS
5 14 (7.07%) Azure DevOps
6 13 (6.57%) Power Platform
7 7 (3.54%) GCP
7 7 (3.54%) GitHub
7 7 (3.54%) Microsoft 365
8 6 (3.03%) Azure Data Factory
8 6 (3.03%) ChatGPT
8 6 (3.03%) Dynamics 365
8 6 (3.03%) GitHub Copilot
8 6 (3.03%) Power Automate
9 5 (2.53%) Amazon SQS
9 5 (2.53%) Azure Logic Apps
9 5 (2.53%) Serverless
9 5 (2.53%) Snowflake
10 4 (2.02%) PaaS
Communications & Networking
1 6 (3.03%) Firewall
2 4 (2.02%) WAN
3 3 (1.52%) Intranet
3 3 (1.52%) LAN
3 3 (1.52%) SD-WAN
3 3 (1.52%) Wi-Fi
4 2 (1.01%) Extranet
4 2 (1.01%) SAN
4 2 (1.01%) 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 67 (33.84%) SQL Server
2 44 (22.22%) MySQL
3 10 (5.05%) SQL Server Integration Services
4 7 (3.54%) Power BI
4 7 (3.54%) Relational Database
5 6 (3.03%) NoSQL
6 4 (2.02%) Amazon Redshift
6 4 (2.02%) Big Data
6 4 (2.02%) BigQuery
6 4 (2.02%) Data Mining
7 3 (1.52%) Delta Lake
7 3 (1.52%) Metadata
7 3 (1.52%) PostgreSQL
8 2 (1.01%) Data Vault
8 2 (1.01%) Hadoop
8 2 (1.01%) Oracle Database
8 2 (1.01%) Pinecone
8 2 (1.01%) Snowflake Schema
9 1 (0.51%) Azure SQL Database
9 1 (0.51%) SAP Data Services
Development Applications
1 11 (5.56%) ERwin
2 8 (4.04%) Jenkins
2 8 (4.04%) Octopus Deploy
3 6 (3.03%) Git
3 6 (3.03%) TeamCity
4 4 (2.02%) JIRA
5 3 (1.52%) GitLab
6 2 (1.01%) Artifactory
6 2 (1.01%) JUnit
6 2 (1.01%) MLflow
6 2 (1.01%) Synon
7 1 (0.51%) Cucumber
7 1 (0.51%) JMeter
7 1 (0.51%) Mockito
7 1 (0.51%) Selenium
7 1 (0.51%) Vite
General
1 87 (43.94%) Social Skills
2 50 (25.25%) Analytical Skills
3 38 (19.19%) Finance
4 12 (6.06%) Banking
5 9 (4.55%) Investment Banking
5 9 (4.55%) Legal
6 8 (4.04%) Law
7 7 (3.54%) Inclusion and Diversity
8 6 (3.03%) Public Sector
9 5 (2.53%) Documentation Skills
10 3 (1.52%) Retail
11 2 (1.01%) Back Office
11 2 (1.01%) Marketing
11 2 (1.01%) Music Industry
12 1 (0.51%) Front Office
12 1 (0.51%) Health Technology
12 1 (0.51%) International Banking
12 1 (0.51%) Local Government
12 1 (0.51%) Mandarin Language
Job Titles
1 70 (35.35%) Consultant
2 44 (22.22%) Senior
3 32 (16.16%) Developer
4 30 (15.15%) Architect
5 25 (12.63%) Gen AI Consultant
5 25 (12.63%) Senior Consultant
6 23 (11.62%) Lead
7 13 (6.57%) Data Architect
8 11 (5.56%) Lead Architect
8 11 (5.56%) Lead Data Architect
8 11 (5.56%) Senior Developer
9 8 (4.04%) Analyst
9 8 (4.04%) CRM Manager
9 8 (4.04%) Lead Developer
9 8 (4.04%) Platform Manager
9 8 (4.04%) Solutions Architect
10 7 (3.54%) Data Engineer
11 6 (3.03%) Artificial Intelligence Developer
11 6 (3.03%) DevOps Engineer
11 6 (3.03%) Enterprise Architect
Libraries, Frameworks & Software Standards
1 25 (12.63%) LangChain
2 15 (7.58%) REST
3 11 (5.56%) .NET
4 10 (5.05%) Kafka
5 9 (4.55%) Pandas
6 8 (4.04%) Laravel
7 7 (3.54%) React
7 7 (3.54%) RESTful
7 7 (3.54%) Spring
7 7 (3.54%) Spring Boot
8 6 (3.03%) Django
8 6 (3.03%) Hibernate
8 6 (3.03%) Web Services
9 5 (2.53%) JPA
9 5 (2.53%) Tailwind CSS
10 4 (2.02%) Apache Beam
10 4 (2.02%) NumPy
10 4 (2.02%) scikit-learn
10 4 (2.02%) Symfony
10 4 (2.02%) Vue
Miscellaneous
1 20 (10.10%) Data Structures
2 17 (8.59%) Cloud Native
3 9 (4.55%) Management Information System
4 7 (3.54%) Virtual Team
5 6 (3.03%) Hybrid Cloud
6 5 (2.53%) Analytical Mindset
6 5 (2.53%) Distributed Architecture
6 5 (2.53%) Low-Code
7 4 (2.02%) e-Learning
7 4 (2.02%) Enterprise Software
7 4 (2.02%) Product Ownership
8 3 (1.52%) Onboarding
9 2 (1.01%) CMDB
9 2 (1.01%) Cyber Threat
9 2 (1.01%) Legacy Applications
9 2 (1.01%) Shadow IT
10 1 (0.51%) Data Centre
10 1 (0.51%) Greenfield Project
10 1 (0.51%) Reinsurance
10 1 (0.51%) Self-Motivation
Operating Systems
1 5 (2.53%) Windows
2 3 (1.52%) Windows Server
3 2 (1.01%) VMS
4 1 (0.51%) Linux
4 1 (0.51%) Windows Server 2012
Processes & Methodologies
1 48 (24.24%) Agile
1 48 (24.24%) Migration
2 47 (23.74%) Stakeholder Management
3 46 (23.23%) OO
4 45 (22.73%) AI
5 44 (22.22%) OOP
6 40 (20.20%) CI/CD
7 38 (19.19%) Thought Leadership
8 34 (17.17%) DevOps
9 33 (16.67%) Machine Learning
10 32 (16.16%) Computer Science
11 31 (15.66%) IT Strategy
12 29 (14.65%) LLM
13 28 (14.14%) Prompt Engineering
13 28 (14.14%) Roadmaps
14 27 (13.64%) Generative AI
14 27 (13.64%) MLOps
14 27 (13.64%) Retrieval-Augmented Generation
15 26 (13.13%) Business Development
16 25 (12.63%) Problem-Solving
Programming Languages
1 45 (22.73%) Delphi
2 44 (22.22%) Pascal
3 31 (15.66%) SQL
4 22 (11.11%) Python
5 13 (6.57%) Java
5 13 (6.57%) PHP
6 11 (5.56%) PowerShell
7 8 (4.04%) JavaScript
8 5 (2.53%) C#
9 2 (1.01%) Bicep
9 2 (1.01%) Data Analysis Expressions
9 2 (1.01%) PL/SQL
9 2 (1.01%) RPG
9 2 (1.01%) Shell Script
9 2 (1.01%) TypeScript
10 1 (0.51%) Elixir
10 1 (0.51%) R
10 1 (0.51%) Rust
10 1 (0.51%) Scala
10 1 (0.51%) T-SQL
Qualifications
1 38 (19.19%) Degree
2 30 (15.15%) Computer Science Degree
3 6 (3.03%) Azure Certification
4 3 (1.52%) Security Cleared
5 2 (1.01%) Cisco Certification
5 2 (1.01%) SC Cleared
5 2 (1.01%) 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 (23.74%) QA
2 11 (5.56%) GDPR
3 4 (2.02%) Data Quality
3 4 (2.02%) ISO/IEC 27001
4 3 (1.52%) Accessibility
5 2 (1.01%) COBIT
6 1 (0.51%) Cyber Essentials
6 1 (0.51%) Cyber Essentials PLUS
6 1 (0.51%) NIST
System Software
1 13 (6.57%) Docker
2 3 (1.52%) Active Directory
2 3 (1.52%) VMware ESXi
2 3 (1.52%) 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 16 (8.08%) Kubernetes
1 16 (8.08%) Terraform
2 3 (1.52%) Microsoft Intune
3 2 (1.01%) Grafana
3 2 (1.01%) Prometheus
4 1 (0.51%) Ansible
4 1 (0.51%) Backup Exec
4 1 (0.51%) Cisco CUCM
4 1 (0.51%) FortiGate
4 1 (0.51%) Kibana
4 1 (0.51%) SCOM
4 1 (0.51%) vCenter Server
4 1 (0.51%) ZABBIX
Vendors
1 52 (26.26%) Oracle
2 44 (22.22%) Microsoft
3 26 (13.13%) Google
4 12 (6.06%) Salesforce
5 8 (4.04%) Databricks
6 5 (2.53%) Cisco
6 5 (2.53%) VMware
7 4 (2.02%) Citrix
8 3 (1.52%) OpenAI
9 2 (1.01%) Automation Anywhere
9 2 (1.01%) BiZZdesign
9 2 (1.01%) IBM
9 2 (1.01%) Meraki
9 2 (1.01%) New Relic
9 2 (1.01%) SAP
9 2 (1.01%) ServiceNow
9 2 (1.01%) SolarWinds
9 2 (1.01%) Sparx
9 2 (1.01%) UiPath
9 2 (1.01%) Workday